feat: upload qrz.com clublog and lotw manually

app.go

@@ -99,6 +99,14 @@ const (
 	keyExtClublogAPIKey     = "extsvc.clublog.api_key"
 	keyExtClublogAutoUpload = "extsvc.clublog.auto_upload"
 	keyExtClublogUploadMode = "extsvc.clublog.upload_mode"
+
+	keyExtLoTWTQSLPath    = "extsvc.lotw.tqsl_path"
+	keyExtLoTWStationLoc  = "extsvc.lotw.station_location"
+	keyExtLoTWKeyPassword = "extsvc.lotw.key_password"
+	keyExtLoTWUploadFlag  = "extsvc.lotw.upload_flag"
+	keyExtLoTWWriteLog    = "extsvc.lotw.write_log"
+	keyExtLoTWAutoUpload  = "extsvc.lotw.auto_upload"
+	keyExtLoTWUploadMode  = "extsvc.lotw.upload_mode"
 )
 
 // QSLDefaults is the per-user default for the QSL / eQSL / LoTW / upload
@@ -442,6 +450,7 @@ func (a *App) startup(ctx context.Context) {
 		BuildADIF:    a.buildUploadADIF,
 		MarkUploaded: a.markExtUploaded,
 		NotifyError:  a.notifyExtError,
+		ShouldUpload: a.extShouldUpload,
 		Logf:         applog.Printf,
 	})
 	a.extsvc.SetConfig(a.loadExternalServices())
@@ -511,6 +520,15 @@ func (a *App) plannedShutdownSteps() []shutdownStep {
 			out = append(out, shutdownStep{ID: "backup", Label: "Backing up database", Status: "pending"})
 		}
 	}
+	if a.extsvc != nil {
+		if n := a.extsvc.PendingCount(); n > 0 {
+			out = append(out, shutdownStep{
+				ID:    "extsvc-upload",
+				Label: fmt.Sprintf("Uploading %d QSO(s) to online logbooks", n),
+				Status: "pending",
+			})
+		}
+	}
 	return out
 }
 
@@ -533,6 +551,9 @@ func (a *App) runShutdownTasks(ctx context.Context, steps []shutdownStep) {
 		switch steps[i].ID {
 		case "backup":
 			err = a.runBackupForShutdown()
+		case "extsvc-upload":
+			n := a.extsvc.FlushOnClose()
+			steps[i].Detail = fmt.Sprintf("%d uploaded", n)
 		}
 		if err != nil {
 			steps[i].Status = "error"
@@ -718,6 +739,10 @@ func (a *App) ComputeStationInfo(callsign, grid string) StationInfoComputed {
 		out.Lat = lat
 		out.Lon = lon
 	}
+	// 3 decimals is ~110 m — plenty for a station/grid coordinate, and keeps
+	// the UI fields tidy.
+	out.Lat = math.Round(out.Lat*1000) / 1000
+	out.Lon = math.Round(out.Lon*1000) / 1000
 	return out
 }
 
@@ -1299,7 +1324,10 @@ func (a *App) loadExternalServices() extsvc.ExternalServices {
 	m, err := a.settings.GetMany(a.ctx,
 		keyExtQRZAPIKey, keyExtQRZForceCall, keyExtQRZAutoUpload, keyExtQRZUploadMode,
 		keyExtClublogEmail, keyExtClublogPassword, keyExtClublogCallsign,
-		keyExtClublogAPIKey, keyExtClublogAutoUpload, keyExtClublogUploadMode)
+		keyExtClublogAPIKey, keyExtClublogAutoUpload, keyExtClublogUploadMode,
+		keyExtLoTWTQSLPath, keyExtLoTWStationLoc, keyExtLoTWKeyPassword,
+		keyExtLoTWUploadFlag, keyExtLoTWWriteLog,
+		keyExtLoTWAutoUpload, keyExtLoTWUploadMode)
 	if err != nil {
 		return out
 	}
@@ -1324,6 +1352,20 @@ func (a *App) loadExternalServices() extsvc.ExternalServices {
 			out.Clublog.Callsign = p.Callsign
 		}
 	}
+	out.LoTW = extsvc.ServiceConfig{
+		TQSLPath:        m[keyExtLoTWTQSLPath],
+		StationLocation: m[keyExtLoTWStationLoc],
+		KeyPassword:     m[keyExtLoTWKeyPassword],
+		UploadFlag:      m[keyExtLoTWUploadFlag],
+		WriteLog:        m[keyExtLoTWWriteLog] == "1",
+		AutoUpload:      m[keyExtLoTWAutoUpload] == "1",
+		UploadMode:      extsvc.UploadMode(m[keyExtLoTWUploadMode]),
+	}
+	// Default the TQSL path to the standard install location when unset, so
+	// the field is pre-populated if TQSL is present.
+	if out.LoTW.TQSLPath == "" {
+		out.LoTW.TQSLPath = extsvc.DefaultTQSLPath()
+	}
 	return out
 }
 
@@ -1354,6 +1396,22 @@ func (a *App) SaveExternalServices(cfg extsvc.ExternalServices) error {
 	if cfg.Clublog.AutoUpload {
 		clAuto = "1"
 	}
+	ltMode := string(extsvc.ModeImmediate)
+	if cfg.LoTW.UploadMode == extsvc.ModeDelayed {
+		ltMode = string(extsvc.ModeDelayed)
+	}
+	ltAuto := "0"
+	if cfg.LoTW.AutoUpload {
+		ltAuto = "1"
+	}
+	ltFlag := strings.ToUpper(strings.TrimSpace(cfg.LoTW.UploadFlag))
+	if ltFlag != "N" && ltFlag != "R" {
+		ltFlag = "R"
+	}
+	ltWriteLog := "0"
+	if cfg.LoTW.WriteLog {
+		ltWriteLog = "1"
+	}
 	for k, v := range map[string]string{
 		keyExtQRZAPIKey:     strings.TrimSpace(cfg.QRZ.APIKey),
 		keyExtQRZForceCall:  strings.ToUpper(strings.TrimSpace(cfg.QRZ.ForceStationCallsign)),
@@ -1366,6 +1424,14 @@ func (a *App) SaveExternalServices(cfg extsvc.ExternalServices) error {
 		keyExtClublogAPIKey:     strings.TrimSpace(cfg.Clublog.APIKey),
 		keyExtClublogAutoUpload: clAuto,
 		keyExtClublogUploadMode: clMode,
+
+		keyExtLoTWTQSLPath:    strings.TrimSpace(cfg.LoTW.TQSLPath),
+		keyExtLoTWStationLoc:  strings.TrimSpace(cfg.LoTW.StationLocation),
+		keyExtLoTWKeyPassword: cfg.LoTW.KeyPassword,
+		keyExtLoTWUploadFlag:  ltFlag,
+		keyExtLoTWWriteLog:    ltWriteLog,
+		keyExtLoTWAutoUpload:  ltAuto,
+		keyExtLoTWUploadMode:  ltMode,
 	} {
 		if err := a.settings.Set(a.ctx, k, v); err != nil {
 			return err
@@ -1389,6 +1455,135 @@ func (a *App) TestClublogUpload() (string, error) {
 	return extsvc.TestClublog(a.ctx, a.loadExternalServices().Clublog)
 }
 
+// ── QSL Manager (manual upload) ────────────────────────────────────────
+
+// uploadColumnFor maps a service id to its QSO sent-status column.
+func uploadColumnFor(service string) string {
+	switch extsvc.Service(service) {
+	case extsvc.ServiceQRZ:
+		return "qrzcom_qso_upload_status"
+	case extsvc.ServiceClublog:
+		return "clublog_qso_upload_status"
+	case extsvc.ServiceLoTW:
+		return "lotw_sent"
+	}
+	return ""
+}
+
+// FindQSOsForUpload returns QSOs whose sent status for the given service
+// matches sentStatus ("" = blank). Powers the QSL Manager's Select required.
+func (a *App) FindQSOsForUpload(service, sentStatus string) ([]qso.UploadRow, error) {
+	if a.qso == nil {
+		return nil, fmt.Errorf("db not initialized")
+	}
+	col := uploadColumnFor(service)
+	if col == "" {
+		return nil, fmt.Errorf("unknown service %q", service)
+	}
+	return a.qso.ListForUpload(a.ctx, col, strings.ToUpper(strings.TrimSpace(sentStatus)))
+}
+
+// UploadQSOsManual uploads the given QSO ids to a service on demand
+// (regardless of their current sent status — the user picked them). Runs in
+// the background, emitting "qslmgr:log" lines and a final "qslmgr:done".
+func (a *App) UploadQSOsManual(service string, ids []int64) error {
+	if a.qso == nil {
+		return fmt.Errorf("db not initialized")
+	}
+	svc := extsvc.Service(service)
+	if uploadColumnFor(service) == "" {
+		return fmt.Errorf("unknown service %q", service)
+	}
+	cfg := a.loadExternalServices()
+	go a.runManualUpload(svc, ids, cfg)
+	return nil
+}
+
+func (a *App) runManualUpload(svc extsvc.Service, ids []int64, cfg extsvc.ExternalServices) {
+	emit := func(line string) {
+		if a.ctx != nil {
+			wruntime.EventsEmit(a.ctx, "qslmgr:log", line)
+		}
+	}
+	ctx := context.Background()
+	uploaded := 0
+
+	if svc == extsvc.ServiceLoTW {
+		emit(fmt.Sprintf("Signing %d QSO(s) with TQSL…", len(ids)))
+		var recs []string
+		for _, id := range ids {
+			if rec, ok := a.buildUploadADIF(id, ""); ok {
+				recs = append(recs, rec)
+			}
+		}
+		res, err := extsvc.UploadLoTW(ctx, cfg.LoTW, "", strings.Join(recs, "\n"))
+		if err != nil || !res.OK {
+			msg := res.Message
+			if err != nil {
+				msg = err.Error()
+			}
+			emit("LoTW upload failed: " + msg)
+		} else {
+			for _, id := range ids {
+				a.markExtUploaded(svc, id, "")
+				uploaded++
+			}
+			emit(fmt.Sprintf("LoTW: %d QSO(s) uploaded", uploaded))
+		}
+	} else {
+		for _, id := range ids {
+			q, gerr := a.qso.GetByID(ctx, id)
+			call := ""
+			if gerr == nil {
+				call = q.Callsign
+			}
+			force := ""
+			if svc == extsvc.ServiceQRZ {
+				force = cfg.QRZ.ForceStationCallsign
+			}
+			rec, ok := a.buildUploadADIF(id, force)
+			if !ok {
+				emit(call + " — skipped (no record)")
+				continue
+			}
+			var res extsvc.UploadResult
+			var err error
+			switch svc {
+			case extsvc.ServiceQRZ:
+				res, err = extsvc.UploadQRZ(ctx, nil, cfg.QRZ.APIKey, rec)
+			case extsvc.ServiceClublog:
+				res, err = extsvc.UploadClublog(ctx, nil, cfg.Clublog, rec)
+			}
+			if err == nil && res.OK {
+				a.markExtUploaded(svc, id, "")
+				uploaded++
+				emit(call + " — OK")
+			} else {
+				msg := res.Message
+				if err != nil {
+					msg = err.Error()
+				}
+				emit(call + " — FAILED: " + msg)
+			}
+		}
+	}
+	if a.ctx != nil {
+		wruntime.EventsEmit(a.ctx, "qslmgr:done", map[string]any{"uploaded": uploaded, "total": len(ids)})
+	}
+}
+
+// ListTQSLStationLocations returns the Station Locations defined in TQSL,
+// for the LoTW settings dropdown.
+func (a *App) ListTQSLStationLocations() ([]extsvc.StationLocation, error) {
+	return extsvc.ListStationLocations(extsvc.DefaultStationDataPath())
+}
+
+// TestLoTWUpload validates the LoTW config (TQSL present + station location
+// exists).
+func (a *App) TestLoTWUpload() (string, error) {
+	return extsvc.TestLoTW(a.loadExternalServices().LoTW, extsvc.DefaultStationDataPath())
+}
+
 // buildUploadADIF builds a single-record ADIF for QSO id, overriding the
 // station callsign when forceCall is set (QRZ rejects QSOs whose station
 // call differs from the logbook's registered call). ok=false → skip.
@@ -1406,6 +1601,37 @@ func (a *App) buildUploadADIF(id int64, forceCall string) (string, bool) {
 	return adif.SingleRecordADIF(q), true
 }
 
+// extShouldUpload reports whether a QSO is eligible for upload to a service,
+// based on its sent status. QRZ/Club Log upload anything not yet "Y"; LoTW
+// uploads only QSOs whose lotw_sent matches the configured Upload flag
+// ("N" or "R") — the Log4OM rule that must match the Confirmations default.
+func (a *App) extShouldUpload(svc extsvc.Service, id int64) bool {
+	if a.qso == nil {
+		return false
+	}
+	q, err := a.qso.GetByID(a.ctx, id)
+	if err != nil {
+		return false
+	}
+	switch svc {
+	case extsvc.ServiceQRZ:
+		return !strings.EqualFold(q.QRZComUploadStatus, "Y")
+	case extsvc.ServiceClublog:
+		return !strings.EqualFold(q.ClublogUploadStatus, "Y")
+	case extsvc.ServiceLoTW:
+		flag := "R"
+		if a.settings != nil {
+			if m, e := a.settings.GetMany(a.ctx, keyExtLoTWUploadFlag); e == nil {
+				if v := strings.ToUpper(strings.TrimSpace(m[keyExtLoTWUploadFlag])); v == "N" || v == "R" {
+					flag = v
+				}
+			}
+		}
+		return strings.EqualFold(q.LOTWSent, flag)
+	}
+	return false
+}
+
 // markExtUploaded stamps the per-service upload status on the QSO row and
 // tells the frontend to refresh that row's confirmation columns.
 func (a *App) markExtUploaded(svc extsvc.Service, id int64, logID string) {
@@ -1423,6 +1649,12 @@ func (a *App) markExtUploaded(svc extsvc.Service, id int64, logID string) {
 				applog.Printf("extsvc: mark clublog uploaded %d: %v", id, err)
 			}
 		}
+	case extsvc.ServiceLoTW:
+		if a.qso != nil {
+			if err := a.qso.MarkLoTWUploaded(a.ctx, id, date); err != nil {
+				applog.Printf("extsvc: mark lotw uploaded %d: %v", id, err)
+			}
+		}
 	}
 	if a.ctx != nil {
 		wruntime.EventsEmit(a.ctx, "extsvc:uploaded", map[string]any{

frontend/src/App.tsx

@@ -27,6 +27,7 @@ import type { adif as adifModels, lookup as lookupModels, cat as catModels } fro
 import type { QSOForm, WorkedBeforeView, StationSettingsForm, ListsSettingsForm, ModePresetForm } from '@/types';
 
 import { Menubar, type Menu } from '@/components/Menubar';
+import { QSLManagerModal } from '@/components/QSLManagerModal';
 import { ConfirmDialog } from '@/components/ConfirmDialog';
 import { SettingsModal } from '@/components/SettingsModal';
 import { QSOEditModal } from '@/components/QSOEditModal';
@@ -448,6 +449,7 @@ export default function App() {
   // close so the next plain "Preferences" launch reverts to default.
   const [settingsSection, setSettingsSection] = useState<string | undefined>(undefined);
   const [showDeleteAll, setShowDeleteAll] = useState(false);
+  const [showQSLManager, setShowQSLManager] = useState(false);
   const [deletingAll, setDeletingAll] = useState(false);
   const [ctyRefreshing, setCtyRefreshing] = useState(false);
 
@@ -505,6 +507,17 @@ export default function App() {
     }
   }, [filterCallsign, filterBand, filterMode, qsoLimit]);
 
+  // Refresh the Recent QSOs grid after external-service uploads stamp the
+  // sent status (auto-upload via extsvc:uploaded, or manual QSL Manager via
+  // qslmgr:done). Debounced so a batch of per-QSO events triggers one reload.
+  useEffect(() => {
+    let t: number | undefined;
+    const ping = () => { if (t) window.clearTimeout(t); t = window.setTimeout(() => { refresh(); }, 400); };
+    const offUploaded = EventsOn('extsvc:uploaded', ping);
+    const offDone = EventsOn('qslmgr:done', ping);
+    return () => { offUploaded(); offDone(); if (t) window.clearTimeout(t); };
+  }, [refresh]);
+
   const loadStation = useCallback(async () => {
     try { setStation(await GetStationSettings()); } catch {}
   }, []);
@@ -965,6 +978,8 @@ export default function App() {
       { type: 'item', label: 'Clear filters', action: 'view.clearfilters' },
     ]},
     { name: 'tools', label: 'Tools', items: [
+      { type: 'item', label: 'QSL Manager…', action: 'tools.qslmanager' },
+      { type: 'separator' },
       { type: 'item', label: 'Callsign lookup settings…', action: 'tools.lookup' },
       { type: 'item', label: 'DX Cluster', action: 'tools.cluster', disabled: true },
       { type: 'item', label: 'CAT control', action: 'tools.cat', disabled: true },
@@ -989,6 +1004,7 @@ export default function App() {
       case 'edit.edit':         if (selectedId !== null) openEdit(selectedId); break;
       case 'edit.delete':       if (selectedId !== null) askDelete(selectedId); break;
       case 'edit.prefs':        setShowSettings(true); break;
+      case 'tools.qslmanager':  setShowQSLManager(true); break;
       case 'tools.lookup':      setSettingsSection('lookup'); setShowSettings(true); break;
       case 'tools.refreshCty':  refreshCtyDat(); break;
     }
@@ -1979,6 +1995,8 @@ export default function App() {
           onSaved={() => { loadStation(); loadLists(); loadCATCfg(); }}
         />
       )}
+      <QSLManagerModal open={showQSLManager} onClose={() => setShowQSLManager(false)} />
+
       {deletingQSO && (
         <ConfirmDialog
           title="Delete QSO?"

frontend/src/components/QSLManagerModal.tsx

@@ -0,0 +1,233 @@
+import { useEffect, useMemo, useState } from 'react';
+import { UploadCloud, Search, Loader2 } from 'lucide-react';
+import {
+  Dialog, DialogContent, DialogHeader, DialogTitle, DialogFooter, DialogDescription,
+} from '@/components/ui/dialog';
+import { Button } from '@/components/ui/button';
+import { Checkbox } from '@/components/ui/checkbox';
+import {
+  Select, SelectTrigger, SelectValue, SelectContent, SelectItem,
+} from '@/components/ui/select';
+import { cn } from '@/lib/utils';
+import { FindQSOsForUpload, UploadQSOsManual } from '../../wailsjs/go/main/App';
+import { EventsOn } from '../../wailsjs/runtime/runtime';
+
+type UploadRow = {
+  id: number; qso_date: string; callsign: string;
+  band: string; mode: string; country: string; status: string;
+};
+
+const SERVICES = [
+  { v: 'qrz',     label: 'QRZ.com' },
+  { v: 'clublog', label: 'Club Log' },
+  { v: 'lotw',    label: 'LoTW' },
+];
+
+// Sent-status filter values. Empty string = blank/none.
+const SENT_STATUSES = [
+  { v: 'R', label: 'Requested' },
+  { v: 'N', label: 'No' },
+  { v: 'Q', label: 'Queued' },
+  { v: 'Y', label: 'Yes (already sent)' },
+  { v: 'I', label: 'Invalid' },
+  { v: '_', label: '— blank —' },
+];
+
+function fmtDate(iso: string): string {
+  if (!iso) return '';
+  const d = new Date(iso);
+  if (isNaN(d.getTime())) return iso;
+  const p = (n: number) => String(n).padStart(2, '0');
+  return `${d.getUTCFullYear()}-${p(d.getUTCMonth() + 1)}-${p(d.getUTCDate())} ${p(d.getUTCHours())}:${p(d.getUTCMinutes())}`;
+}
+
+export function QSLManagerModal({ open, onClose }: { open: boolean; onClose: () => void }) {
+  const [service, setService] = useState('lotw');
+  const [sent, setSent] = useState('R');
+  const [rows, setRows] = useState<UploadRow[]>([]);
+  const [selected, setSelected] = useState<Set<number>>(new Set());
+  const [searching, setSearching] = useState(false);
+  const [error, setError] = useState('');
+
+  const [logOpen, setLogOpen] = useState(false);
+  const [logLines, setLogLines] = useState<string[]>([]);
+  const [uploadDone, setUploadDone] = useState(false);
+
+  useEffect(() => {
+    const offLog = EventsOn('qslmgr:log', (line: string) => setLogLines((p) => [...p, line]));
+    const offDone = EventsOn('qslmgr:done', (d: any) => {
+      setLogLines((p) => [...p, `— Done: ${d?.uploaded ?? 0}/${d?.total ?? 0} uploaded —`]);
+      setUploadDone(true);
+    });
+    return () => { offLog(); offDone(); };
+  }, []);
+
+  const selectedCount = selected.size;
+  const allSelected = rows.length > 0 && selected.size === rows.length;
+
+  async function selectRequired() {
+    setSearching(true);
+    setError('');
+    try {
+      const r: any = await FindQSOsForUpload(service, sent === '_' ? '' : sent);
+      const list = (r ?? []) as UploadRow[];
+      setRows(list);
+      setSelected(new Set(list.map((x) => x.id))); // auto-select all found
+    } catch (e: any) {
+      setError(String(e?.message ?? e));
+      setRows([]);
+      setSelected(new Set());
+    } finally {
+      setSearching(false);
+    }
+  }
+
+  function toggle(id: number) {
+    setSelected((s) => {
+      const n = new Set(s);
+      if (n.has(id)) n.delete(id); else n.add(id);
+      return n;
+    });
+  }
+  function toggleAll() {
+    setSelected(allSelected ? new Set() : new Set(rows.map((r) => r.id)));
+  }
+
+  async function upload() {
+    const ids = rows.filter((r) => selected.has(r.id)).map((r) => r.id);
+    if (ids.length === 0) return;
+    setLogLines([]);
+    setUploadDone(false);
+    setLogOpen(true);
+    try {
+      await UploadQSOsManual(service, ids);
+    } catch (e: any) {
+      setLogLines((p) => [...p, 'Error: ' + String(e?.message ?? e)]);
+      setUploadDone(true);
+    }
+  }
+
+  function closeLog() {
+    setLogOpen(false);
+    // Refresh the list so uploaded QSOs drop out of the current filter.
+    selectRequired();
+  }
+
+  const serviceLabel = useMemo(() => SERVICES.find((s) => s.v === service)?.label ?? service, [service]);
+
+  return (
+    <>
+      <Dialog open={open} onOpenChange={(o) => { if (!o) onClose(); }}>
+        <DialogContent className="max-w-[1000px] w-full max-h-[88vh] grid grid-rows-[auto_auto_1fr_auto] gap-0 p-0">
+          <DialogHeader className="px-4 pt-4">
+            <DialogTitle>QSL Manager</DialogTitle>
+            <DialogDescription className="sr-only">Upload logged QSOs to online logbooks.</DialogDescription>
+          </DialogHeader>
+
+          {/* Search toolbar */}
+          <div className="flex items-end gap-3 px-4 py-3 border-b border-border bg-muted/20">
+            <div className="flex flex-col gap-1">
+              <label className="text-[10px] uppercase tracking-wider text-muted-foreground">Service</label>
+              <Select value={service} onValueChange={setService}>
+                <SelectTrigger className="h-8 w-36"><SelectValue /></SelectTrigger>
+                <SelectContent>
+                  {SERVICES.map((s) => <SelectItem key={s.v} value={s.v}>{s.label}</SelectItem>)}
+                </SelectContent>
+              </Select>
+            </div>
+            <div className="flex flex-col gap-1">
+              <label className="text-[10px] uppercase tracking-wider text-muted-foreground">Sent status</label>
+              <Select value={sent} onValueChange={setSent}>
+                <SelectTrigger className="h-8 w-44"><SelectValue /></SelectTrigger>
+                <SelectContent>
+                  {SENT_STATUSES.map((s) => <SelectItem key={s.v} value={s.v}>{s.label}</SelectItem>)}
+                </SelectContent>
+              </Select>
+            </div>
+            <Button size="sm" className="h-8" onClick={selectRequired} disabled={searching}>
+              {searching ? <Loader2 className="size-3.5 animate-spin" /> : <Search className="size-3.5" />}
+              Select required
+            </Button>
+            <div className="flex-1" />
+            <span className="text-xs text-muted-foreground">
+              {rows.length} found · {selectedCount} selected
+            </span>
+          </div>
+
+          {/* Results grid */}
+          <div className="overflow-auto px-4 py-2 min-h-[200px]">
+            {error && <div className="text-xs text-rose-700 mb-2">{error}</div>}
+            {rows.length === 0 ? (
+              <div className="text-sm text-muted-foreground py-10 text-center">
+                Pick a service + sent status, then “Select required”.
+              </div>
+            ) : (
+              <table className="w-full text-xs border-collapse">
+                <thead className="sticky top-0 bg-card">
+                  <tr className="text-left text-muted-foreground border-b border-border">
+                    <th className="py-1.5 px-2 w-8"><Checkbox checked={allSelected} onCheckedChange={toggleAll} /></th>
+                    <th className="py-1.5 px-2">Date UTC</th>
+                    <th className="py-1.5 px-2">Callsign</th>
+                    <th className="py-1.5 px-2">Band</th>
+                    <th className="py-1.5 px-2">Mode</th>
+                    <th className="py-1.5 px-2">Country</th>
+                    <th className="py-1.5 px-2">Sent</th>
+                  </tr>
+                </thead>
+                <tbody>
+                  {rows.map((r) => (
+                    <tr
+                      key={r.id}
+                      className={cn('border-b border-border/40 cursor-pointer hover:bg-accent/30', selected.has(r.id) && 'bg-primary/5')}
+                      onClick={() => toggle(r.id)}
+                    >
+                      <td className="py-1 px-2" onClick={(e) => e.stopPropagation()}>
+                        <Checkbox checked={selected.has(r.id)} onCheckedChange={() => toggle(r.id)} />
+                      </td>
+                      <td className="py-1 px-2 font-mono">{fmtDate(r.qso_date)}</td>
+                      <td className="py-1 px-2 font-mono font-bold">{r.callsign}</td>
+                      <td className="py-1 px-2">{r.band}</td>
+                      <td className="py-1 px-2">{r.mode}</td>
+                      <td className="py-1 px-2 text-muted-foreground">{r.country}</td>
+                      <td className="py-1 px-2 font-mono">{r.status || '—'}</td>
+                    </tr>
+                  ))}
+                </tbody>
+              </table>
+            )}
+          </div>
+
+          <DialogFooter className="px-4 py-3 border-t border-border">
+            <Button variant="ghost" size="sm" onClick={onClose}>Close</Button>
+            <Button size="sm" onClick={upload} disabled={selectedCount === 0}>
+              <UploadCloud className="size-3.5" />
+              Upload {selectedCount} to {serviceLabel}
+            </Button>
+          </DialogFooter>
+        </DialogContent>
+      </Dialog>
+
+      {/* Upload progress / log window */}
+      <Dialog open={logOpen} onOpenChange={(o) => { if (!o && uploadDone) closeLog(); }}>
+        <DialogContent className="max-w-lg">
+          <DialogHeader>
+            <DialogTitle>Uploading to {serviceLabel}</DialogTitle>
+            <DialogDescription className="sr-only">Upload progress log.</DialogDescription>
+          </DialogHeader>
+          <div className="max-h-[50vh] overflow-auto rounded-md border border-border bg-muted/30 p-2.5 font-mono text-[11px] space-y-0.5">
+            {logLines.length === 0 ? (
+              <div className="text-muted-foreground flex items-center gap-2"><Loader2 className="size-3 animate-spin" /> starting…</div>
+            ) : logLines.map((l, i) => (
+              <div key={i} className={cn(l.includes('FAILED') || l.includes('failed') ? 'text-rose-700' : l.includes('OK') ? 'text-emerald-700' : 'text-foreground')}>{l}</div>
+            ))}
+          </div>
+          <DialogFooter>
+            <Button size="sm" onClick={closeLog} disabled={!uploadDone}>
+              {uploadDone ? 'Close' : <><Loader2 className="size-3.5 animate-spin" /> Uploading…</>}
+            </Button>
+          </DialogFooter>
+        </DialogContent>
+      </Dialog>
+    </>
+  );
+}

frontend/src/components/SettingsModal.tsx

@@ -18,6 +18,7 @@ import {
   GetBackupSettings, SaveBackupSettings, RunBackupNow, PickBackupFolder,
   GetQSLDefaults, SaveQSLDefaults,
   GetExternalServices, SaveExternalServices, TestQRZUpload, TestClublogUpload,
+  TestLoTWUpload, ListTQSLStationLocations,
   ComputeStationInfo,
 } from '../../wailsjs/go/main/App';
 import type { profile as profileModels } from '../../wailsjs/go/models';
@@ -154,10 +155,10 @@ const TREE: TreeNode[] = [
   {
     kind: 'group', label: 'User Configuration', icon: User, defaultOpen: true, children: [
       { kind: 'item', label: 'Station Information', id: 'station' },
-      { kind: 'item', label: 'Profiles (portable, home, contest)', id: 'profiles' },
+      { kind: 'item', label: 'Profiles', id: 'profiles' },
-      { kind: 'item', label: 'Operating conditions (rigs & antennas)', id: 'operating' },
+      { kind: 'item', label: 'Operating conditions', id: 'operating' },
-      { kind: 'item', label: 'Confirmations (QSL / eQSL / LoTW defaults)', id: 'confirmations' },
+      { kind: 'item', label: 'Confirmations', id: 'confirmations' },
-      { kind: 'item', label: 'External services (QRZ.com, Clublog, LoTW…)', id: 'external-services' },
+      { kind: 'item', label: 'External services', id: 'external-services' },
     ],
   },
   {
@@ -351,20 +352,27 @@ export function SettingsModal({ onClose, onSaved, initialSection }: Props) {
   type ExtServiceCfg = {
     api_key: string; email: string; password: string; callsign: string;
     force_station_callsign: string;
+    tqsl_path: string; station_location: string; key_password: string;
+    upload_flag: string; write_log: boolean;
     auto_upload: boolean; upload_mode: string;
   };
-  type ExternalServices = { qrz: ExtServiceCfg; clublog: ExtServiceCfg };
+  type ExternalServices = { qrz: ExtServiceCfg; clublog: ExtServiceCfg; lotw: ExtServiceCfg };
   const emptyExtCfg = (): ExtServiceCfg => ({
     api_key: '', email: '', password: '', callsign: '',
-    force_station_callsign: '', auto_upload: false, upload_mode: 'immediate',
+    force_station_callsign: '', tqsl_path: '', station_location: '', key_password: '',
+    upload_flag: 'R', write_log: false,
+    auto_upload: false, upload_mode: 'immediate',
   });
   const [extSvc, setExtSvc] = useState<ExternalServices>({
-    qrz: emptyExtCfg(), clublog: emptyExtCfg(),
+    qrz: emptyExtCfg(), clublog: emptyExtCfg(), lotw: emptyExtCfg(),
   });
   const [qrzTest, setQrzTest] = useState<{ ok: boolean; msg: string } | null>(null);
   const [qrzTesting, setQrzTesting] = useState(false);
   const [clublogTest, setClublogTest] = useState<{ ok: boolean; msg: string } | null>(null);
   const [clublogTesting, setClublogTesting] = useState(false);
+  const [lotwTest, setLotwTest] = useState<{ ok: boolean; msg: string } | null>(null);
+  const [lotwTesting, setLotwTesting] = useState(false);
+  const [stationLocations, setStationLocations] = useState<string[]>([]);
   // Active tab in the External Services panel — lifted here because
   // PANELS[selected]() is called as a function, so panels can't hold hooks.
   const [extSvcTab, setExtSvcTab] = useState<'qrz' | 'clublog' | 'hrdlog' | 'eqsl' | 'hamqth' | 'lotw'>('qrz');
@@ -456,6 +464,10 @@ export function SettingsModal({ onClose, onSaved, initialSection }: Props) {
         setBackupCfg(b as any);
         setQslDefaults(qd as any);
         setExtSvc(es as any);
+        try {
+          const locs: any = await ListTQSLStationLocations();
+          setStationLocations((locs ?? []).map((l: any) => l.name).filter(Boolean));
+        } catch { /* TQSL not installed — leave the dropdown empty */ }
       } catch (e: any) {
         setErr(String(e?.message ?? e));
       } finally {
@@ -705,12 +717,12 @@ export function SettingsModal({ onClose, onSaved, initialSection }: Props) {
             </div>
             <div className="space-y-1">
               <Label>Latitude</Label>
-              <Input type="number" step="0.0001" className="font-mono" value={(p as any).my_lat ?? ''}
+              <Input type="number" step="0.001" className="font-mono" value={(p as any).my_lat ?? ''}
                 onChange={(e) => updateActive({ my_lat: e.target.value === '' ? undefined : (parseFloat(e.target.value) || undefined) } as any)} placeholder="—" />
             </div>
             <div className="space-y-1">
               <Label>Longitude</Label>
-              <Input type="number" step="0.0001" className="font-mono" value={(p as any).my_lon ?? ''}
+              <Input type="number" step="0.001" className="font-mono" value={(p as any).my_lon ?? ''}
                 onChange={(e) => updateActive({ my_lon: e.target.value === '' ? undefined : (parseFloat(e.target.value) || undefined) } as any)} placeholder="—" />
             </div>
           </div>
@@ -1796,7 +1808,7 @@ export function SettingsModal({ onClose, onSaved, initialSection }: Props) {
       { k: 'hrdlog',  label: 'HRDLOG.NET' },
       { k: 'eqsl',    label: 'EQSL' },
       { k: 'hamqth',  label: 'HAMQTH' },
-      { k: 'lotw',    label: 'LOTW' },
+      { k: 'lotw',    label: 'LOTW', ready: true },
     ];
     const qrz = extSvc.qrz;
     const setQrz = (patch: Partial<ExtServiceCfg>) =>
@@ -1834,6 +1846,33 @@ export function SettingsModal({ onClose, onSaved, initialSection }: Props) {
       }
     }
 
+    const lotw = extSvc.lotw;
+    const setLotw = (patch: Partial<ExtServiceCfg>) =>
+      setExtSvc((s) => ({ ...s, lotw: { ...s.lotw, ...patch } }));
+
+    async function refreshLocations() {
+      try {
+        const locs: any = await ListTQSLStationLocations();
+        setStationLocations((locs ?? []).map((l: any) => l.name).filter(Boolean));
+      } catch (e: any) {
+        setLotwTest({ ok: false, msg: String(e?.message ?? e) });
+      }
+    }
+
+    async function testLotw() {
+      setLotwTesting(true);
+      setLotwTest(null);
+      try {
+        await SaveExternalServices(extSvc as any);
+        const msg = await TestLoTWUpload();
+        setLotwTest({ ok: true, msg });
+      } catch (e: any) {
+        setLotwTest({ ok: false, msg: String(e?.message ?? e) });
+      } finally {
+        setLotwTesting(false);
+      }
+    }
+
     return (
       <>
         <SectionHeader
@@ -1880,13 +1919,6 @@ export function SettingsModal({ onClose, onSaved, initialSection }: Props) {
               />
             </div>
 
-            <div className="text-[11px] text-muted-foreground bg-amber-50 border border-amber-200 rounded-md p-2.5 leading-relaxed">
-              QRZ.com discards station calls that differ from the one registered on the logbook.
-              Setting your registered callsign here rewrites <span className="font-mono">STATION_CALLSIGN</span> on
-              upload, so a QSO logged with a <span className="font-mono">/P</span> or <span className="font-mono">/QRP</span> suffix
-              is still accepted. Note this also applies to QSOs made with a country prefix/suffix.
-            </div>
-
             <div className="border-t border-border/60 pt-3 space-y-3">
               <label className="flex items-center gap-2 text-sm cursor-pointer">
                 <Checkbox
@@ -1906,6 +1938,7 @@ export function SettingsModal({ onClose, onSaved, initialSection }: Props) {
                   <SelectContent>
                     <SelectItem value="immediate">Immediate</SelectItem>
                     <SelectItem value="delayed">Delayed (1–2 min, lets you fix mistakes)</SelectItem>
+                    <SelectItem value="on_close">On app close (batch)</SelectItem>
                   </SelectContent>
                 </Select>
               </div>
@@ -1950,11 +1983,6 @@ export function SettingsModal({ onClose, onSaved, initialSection }: Props) {
               />
             </div>
 
-            <div className="text-[11px] text-muted-foreground bg-amber-50 border border-amber-200 rounded-md p-2.5 leading-relaxed">
-              Club Log uploads each QSO in real time using your account email, password and the
-              logbook callsign — no API key needed for QSO upload.
-            </div>
-
             <div className="border-t border-border/60 pt-3 space-y-3">
               <label className="flex items-center gap-2 text-sm cursor-pointer">
                 <Checkbox
@@ -1974,6 +2002,7 @@ export function SettingsModal({ onClose, onSaved, initialSection }: Props) {
                   <SelectContent>
                     <SelectItem value="immediate">Immediate</SelectItem>
                     <SelectItem value="delayed">Delayed (1–2 min, lets you fix mistakes)</SelectItem>
+                    <SelectItem value="on_close">On app close (batch)</SelectItem>
                   </SelectContent>
                 </Select>
               </div>
@@ -1990,6 +2019,80 @@ export function SettingsModal({ onClose, onSaved, initialSection }: Props) {
               </div>
             </div>
           </div>
+        ) : extSvcTab === 'lotw' ? (
+          <div className="space-y-4 max-w-2xl">
+            <div className="grid grid-cols-[170px_1fr] gap-3 items-center">
+              <Label className="text-sm">TQSL path</Label>
+              <Input
+                value={lotw.tqsl_path}
+                onChange={(e) => setLotw({ tqsl_path: e.target.value })}
+                placeholder="C:\Program Files (x86)\TrustedQSL\tqsl.exe"
+                className="font-mono text-xs"
+              />
+              <Label className="text-sm">Station location</Label>
+              <div className="flex items-center gap-2">
+                <Select value={lotw.station_location || '_'} onValueChange={(v) => setLotw({ station_location: v === '_' ? '' : v })}>
+                  <SelectTrigger className="h-8 flex-1"><SelectValue placeholder="— pick a TQSL location —" /></SelectTrigger>
+                  <SelectContent>
+                    {stationLocations.length === 0 && <SelectItem value="_" disabled>No TQSL locations found</SelectItem>}
+                    {stationLocations.map((n) => <SelectItem key={n} value={n}>{n}</SelectItem>)}
+                  </SelectContent>
+                </Select>
+                <Button variant="ghost" size="sm" className="h-8 px-2" onClick={refreshLocations} title="Reload locations from TQSL">
+                  <ArrowDown className="size-3.5 rotate-90" />
+                </Button>
+              </div>
+              <Label className="text-sm">Key password</Label>
+              <Input
+                type="password"
+                value={lotw.key_password}
+                onChange={(e) => setLotw({ key_password: e.target.value })}
+                placeholder="only if your certificate key has a password"
+                className="text-xs"
+              />
+              <Label className="text-sm">Upload flag</Label>
+              <div>
+                <Select value={lotw.upload_flag || 'R'} onValueChange={(v) => setLotw({ upload_flag: v })}>
+                  <SelectTrigger className="h-8 w-64"><SelectValue /></SelectTrigger>
+                  <SelectContent>
+                    <SelectItem value="N">Upload when LoTW sent = No</SelectItem>
+                    <SelectItem value="R">Upload when LoTW sent = Requested</SelectItem>
+                  </SelectContent>
+                </Select>
+                <div className="text-[10px] text-muted-foreground mt-1">
+                  Must match your default LoTW <em>sent</em> status in Confirmations, or new QSOs won't be picked up.
+                </div>
+              </div>
+            </div>
+
+            <div className="border-t border-border/60 pt-3 space-y-3">
+              <label className="flex items-center gap-2 text-sm cursor-pointer">
+                <Checkbox
+                  checked={lotw.auto_upload}
+                  onCheckedChange={(c) => setLotw({ auto_upload: !!c, upload_mode: 'on_close' })}
+                />
+                Automatic upload on application close
+              </label>
+              <label className="flex items-center gap-2 text-sm cursor-pointer">
+                <Checkbox
+                  checked={lotw.write_log}
+                  onCheckedChange={(c) => setLotw({ write_log: !!c })}
+                />
+                Write TQSL diagnostic log (-t)
+              </label>
+
+              <div className="flex items-center gap-3">
+                <Button variant="outline" size="sm" onClick={testLotw} disabled={lotwTesting}>
+                  <UploadCloud className="size-3.5" /> {lotwTesting ? 'Testing…' : 'Test connection'}
+                </Button>
+                {lotwTest && (
+                  <span className={cn('text-xs', lotwTest.ok ? 'text-emerald-700' : 'text-rose-700')}>
+                    {lotwTest.msg}
+                  </span>
+                )}
+              </div>
+            </div>
+          </div>
         ) : (
           <div className="flex flex-col items-center justify-center text-muted-foreground gap-2 py-16">
             <Construction className="size-10 opacity-30" />

frontend/wailsjs/go/main/App.d.ts

@@ -49,6 +49,8 @@ export function DuplicateProfile(arg1:number,arg2:string):Promise<profile.Profil
 
 export function ExportADIF(arg1:string):Promise<adif.ExportResult>;
 
+export function FindQSOsForUpload(arg1:string,arg2:string):Promise<Array<qso.UploadRow>>;
+
 export function GetActiveProfile():Promise<profile.Profile>;
 
 export function GetBackupSettings():Promise<main.BackupSettings>;
@@ -91,6 +93,8 @@ export function ListProfiles():Promise<Array<profile.Profile>>;
 
 export function ListQSO(arg1:qso.ListFilter):Promise<Array<qso.QSO>>;
 
+export function ListTQSLStationLocations():Promise<Array<extsvc.StationLocation>>;
+
 export function ListUDPIntegrations():Promise<Array<udp.Config>>;
 
 export function LogUDPLoggedADIF(arg1:string):Promise<number>;
@@ -159,6 +163,8 @@ export function SwitchCATRig(arg1:number):Promise<void>;
 
 export function TestClublogUpload():Promise<string>;
 
+export function TestLoTWUpload():Promise<string>;
+
 export function TestLookupProvider(arg1:string,arg2:string,arg3:string,arg4:string):Promise<lookup.Result>;
 
 export function TestQRZUpload():Promise<string>;
@@ -167,4 +173,6 @@ export function TestRotator(arg1:main.RotatorSettings):Promise<void>;
 
 export function UpdateQSO(arg1:qso.QSO):Promise<void>;
 
+export function UploadQSOsManual(arg1:string,arg2:Array<number>):Promise<void>;
+
 export function WorkedBefore(arg1:string,arg2:number):Promise<qso.WorkedBefore>;

frontend/wailsjs/go/main/App.js

@@ -78,6 +78,10 @@ export function ExportADIF(arg1) {
   return window['go']['main']['App']['ExportADIF'](arg1);
 }
 
+export function FindQSOsForUpload(arg1, arg2) {
+  return window['go']['main']['App']['FindQSOsForUpload'](arg1, arg2);
+}
+
 export function GetActiveProfile() {
   return window['go']['main']['App']['GetActiveProfile']();
 }
@@ -162,6 +166,10 @@ export function ListQSO(arg1) {
   return window['go']['main']['App']['ListQSO'](arg1);
 }
 
+export function ListTQSLStationLocations() {
+  return window['go']['main']['App']['ListTQSLStationLocations']();
+}
+
 export function ListUDPIntegrations() {
   return window['go']['main']['App']['ListUDPIntegrations']();
 }
@@ -298,6 +306,10 @@ export function TestClublogUpload() {
   return window['go']['main']['App']['TestClublogUpload']();
 }
 
+export function TestLoTWUpload() {
+  return window['go']['main']['App']['TestLoTWUpload']();
+}
+
 export function TestLookupProvider(arg1, arg2, arg3, arg4) {
   return window['go']['main']['App']['TestLookupProvider'](arg1, arg2, arg3, arg4);
 }
@@ -314,6 +326,10 @@ export function UpdateQSO(arg1) {
   return window['go']['main']['App']['UpdateQSO'](arg1);
 }
 
+export function UploadQSOsManual(arg1, arg2) {
+  return window['go']['main']['App']['UploadQSOsManual'](arg1, arg2);
+}
+
 export function WorkedBefore(arg1, arg2) {
   return window['go']['main']['App']['WorkedBefore'](arg1, arg2);
 }

frontend/wailsjs/go/models.ts

@@ -191,6 +191,11 @@ export namespace extsvc {
 	    password: string;
 	    callsign: string;
 	    force_station_callsign: string;
+	    tqsl_path: string;
+	    station_location: string;
+	    key_password: string;
+	    upload_flag: string;
+	    write_log: boolean;
 	    auto_upload: boolean;
 	    upload_mode: string;
 	
@@ -205,6 +210,11 @@ export namespace extsvc {
 	        this.password = source["password"];
 	        this.callsign = source["callsign"];
 	        this.force_station_callsign = source["force_station_callsign"];
+	        this.tqsl_path = source["tqsl_path"];
+	        this.station_location = source["station_location"];
+	        this.key_password = source["key_password"];
+	        this.upload_flag = source["upload_flag"];
+	        this.write_log = source["write_log"];
 	        this.auto_upload = source["auto_upload"];
 	        this.upload_mode = source["upload_mode"];
 	    }
@@ -212,6 +222,7 @@ export namespace extsvc {
 	export class ExternalServices {
 	    qrz: ServiceConfig;
 	    clublog: ServiceConfig;
+	    lotw: ServiceConfig;
 	
 	    static createFrom(source: any = {}) {
 	        return new ExternalServices(source);
@@ -221,6 +232,7 @@ export namespace extsvc {
 	        if ('string' === typeof source) source = JSON.parse(source);
 	        this.qrz = this.convertValues(source["qrz"], ServiceConfig);
 	        this.clublog = this.convertValues(source["clublog"], ServiceConfig);
+	        this.lotw = this.convertValues(source["lotw"], ServiceConfig);
 	    }
 	
 		convertValues(a: any, classs: any, asMap: boolean = false): any {
@@ -241,6 +253,25 @@ export namespace extsvc {
 		    return a;
 		}
 	}
+	
+	export class StationLocation {
+	    name: string;
+	    call: string;
+	    grid: string;
+	    dxcc: number;
+	
+	    static createFrom(source: any = {}) {
+	        return new StationLocation(source);
+	    }
+	
+	    constructor(source: any = {}) {
+	        if ('string' === typeof source) source = JSON.parse(source);
+	        this.name = source["name"];
+	        this.call = source["call"];
+	        this.grid = source["grid"];
+	        this.dxcc = source["dxcc"];
+	    }
+	}
 
 }
 
@@ -1087,6 +1118,30 @@ export namespace qso {
 		    return a;
 		}
 	}
+	export class UploadRow {
+	    id: number;
+	    qso_date: string;
+	    callsign: string;
+	    band: string;
+	    mode: string;
+	    country: string;
+	    status: string;
+	
+	    static createFrom(source: any = {}) {
+	        return new UploadRow(source);
+	    }
+	
+	    constructor(source: any = {}) {
+	        if ('string' === typeof source) source = JSON.parse(source);
+	        this.id = source["id"];
+	        this.qso_date = source["qso_date"];
+	        this.callsign = source["callsign"];
+	        this.band = source["band"];
+	        this.mode = source["mode"];
+	        this.country = source["country"];
+	        this.status = source["status"];
+	    }
+	}
 	export class WorkedEntry {
 	    id: number;
 	    // Go type: time

internal/extsvc/extsvc.go

@@ -30,7 +30,7 @@ type Service string
 const (
 	ServiceQRZ     Service = "qrz"     // QRZ.com Logbook
 	ServiceClublog Service = "clublog" // Club Log real-time upload
-	// ServiceLoTW to come.
+	ServiceLoTW    Service = "lotw"    // ARRL Logbook of The World (via TQSL)
 )
 
 // UploadMode selects when an auto-upload fires after a QSO is saved.
@@ -41,6 +41,10 @@ const (
 	ModeImmediate UploadMode = "immediate"
 	// ModeDelayed waits a random 1–2 minutes before uploading.
 	ModeDelayed UploadMode = "delayed"
+	// ModeOnClose queues QSOs and uploads them in one batch when the app
+	// closes. This is the LoTW-friendly mode (ARRL discourages per-QSO
+	// uploads), and it lets the user fix the whole session before sending.
+	ModeOnClose UploadMode = "on_close"
 )
 
 // ServiceConfig is the per-service user configuration. It's a superset of
@@ -49,6 +53,7 @@ const (
 //
 //	QRZ.com  → APIKey, ForceStationCallsign
 //	Club Log → Email, Password, Callsign, APIKey
+//	LoTW     → TQSLPath, StationLocation, KeyPassword (signs+uploads via TQSL)
 //
 // AutoUpload + UploadMode are common to all (timing is per-service, so the
 // user can run e.g. Club Log immediate and QRZ delayed).
@@ -58,6 +63,11 @@ type ServiceConfig struct {
 	Password             string     `json:"password"`               // Club Log account password
 	Callsign             string     `json:"callsign"`               // Club Log logbook (owner) callsign
 	ForceStationCallsign string     `json:"force_station_callsign"` // QRZ
+	TQSLPath             string     `json:"tqsl_path"`              // LoTW: path to tqsl.exe
+	StationLocation      string     `json:"station_location"`       // LoTW: TQSL Station Location name
+	KeyPassword          string     `json:"key_password"`           // LoTW: certificate private-key password (optional)
+	UploadFlag           string     `json:"upload_flag"`            // LoTW: sent status that means "ready to upload" — "N" or "R"
+	WriteLog             bool       `json:"write_log"`              // LoTW: pass -t to write a TQSL diagnostic log
 	AutoUpload           bool       `json:"auto_upload"`
 	UploadMode           UploadMode `json:"upload_mode"`
 }
@@ -69,17 +79,29 @@ func (c ServiceConfig) normalised() ServiceConfig {
 	c.Email = strings.TrimSpace(c.Email)
 	c.Callsign = strings.ToUpper(strings.TrimSpace(c.Callsign))
 	c.ForceStationCallsign = strings.ToUpper(strings.TrimSpace(c.ForceStationCallsign))
-	if c.UploadMode != ModeDelayed {
+	c.TQSLPath = strings.TrimSpace(c.TQSLPath)
+	c.StationLocation = strings.TrimSpace(c.StationLocation)
+	// Upload flag is the LoTW sent-status that marks a QSO ready to upload.
+	// Only "N" (no) and "R" (requested) are valid; default to "R".
+	if uf := strings.ToUpper(strings.TrimSpace(c.UploadFlag)); uf == "N" || uf == "R" {
+		c.UploadFlag = uf
+	} else {
+		c.UploadFlag = "R"
+	}
+	switch c.UploadMode {
+	case ModeDelayed, ModeOnClose:
+		// keep
+	default:
 		c.UploadMode = ModeImmediate
 	}
 	return c
 }
 
 // ExternalServices bundles every service's config for the settings UI.
-// LoTW fields will be added as that service lands.
 type ExternalServices struct {
 	QRZ     ServiceConfig `json:"qrz"`
 	Clublog ServiceConfig `json:"clublog"`
+	LoTW    ServiceConfig `json:"lotw"`
 }
 
 // UploadResult is the outcome of a single upload attempt.

internal/extsvc/lotw.go

@@ -0,0 +1,191 @@
+package extsvc
+
+import (
+	"context"
+	"encoding/xml"
+	"fmt"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"strings"
+	"time"
+)
+
+// LoTW uploads go through TQSL (ARRL's Trusted QSL signer): there is no
+// plain HTTP API — every QSO must be signed with the station certificate
+// before LoTW accepts it. We write the QSO to a temporary ADIF file and run
+// tqsl in batch mode to sign and upload it in one shot.
+
+// StationLocation is one TQSL "Station Location" the user has defined. These
+// pair a callsign with a certificate + grid/zones; the upload picks one by
+// name (the -l flag).
+type StationLocation struct {
+	Name string `json:"name"`
+	Call string `json:"call"`
+	Grid string `json:"grid"`
+	DXCC int    `json:"dxcc"`
+}
+
+// stationDataFile mirrors TQSL's station_data XML.
+type stationDataFile struct {
+	XMLName  xml.Name `xml:"StationDataFile"`
+	Stations []struct {
+		Name string `xml:"name,attr"`
+		Call string `xml:"CALL"`
+		Grid string `xml:"GRIDSQUARE"`
+		DXCC int    `xml:"DXCC"`
+	} `xml:"StationData"`
+}
+
+// ListStationLocations parses TQSL's station_data file and returns the
+// defined locations. Used to populate the Station Location dropdown — the
+// same file Log4OM reads.
+func ListStationLocations(stationDataPath string) ([]StationLocation, error) {
+	data, err := os.ReadFile(stationDataPath)
+	if err != nil {
+		return nil, fmt.Errorf("read station_data: %w", err)
+	}
+	var f stationDataFile
+	if err := xml.Unmarshal(data, &f); err != nil {
+		return nil, fmt.Errorf("parse station_data: %w", err)
+	}
+	out := make([]StationLocation, 0, len(f.Stations))
+	for _, s := range f.Stations {
+		out = append(out, StationLocation{Name: s.Name, Call: s.Call, Grid: s.Grid, DXCC: s.DXCC})
+	}
+	return out, nil
+}
+
+// DefaultTQSLPath returns the usual tqsl.exe install path on Windows, or ""
+// if not found.
+func DefaultTQSLPath() string {
+	for _, p := range []string{
+		`C:\Program Files (x86)\TrustedQSL\tqsl.exe`,
+		`C:\Program Files\TrustedQSL\tqsl.exe`,
+	} {
+		if fileExists(p) {
+			return p
+		}
+	}
+	return ""
+}
+
+// DefaultStationDataPath returns TQSL's station_data location (%APPDATA%\
+// TrustedQSL\station_data on Windows), or "" if APPDATA isn't set.
+func DefaultStationDataPath() string {
+	if appData := os.Getenv("APPDATA"); appData != "" {
+		return filepath.Join(appData, "TrustedQSL", "station_data")
+	}
+	return ""
+}
+
+func fileExists(p string) bool {
+	info, err := os.Stat(p)
+	return err == nil && !info.IsDir()
+}
+
+// UploadLoTW signs and uploads one ADIF record via TQSL. tempDir is where the
+// temporary .adi is written (falls back to the OS temp dir). Returns OK when
+// LoTW accepts the QSO or reports it as a duplicate (already uploaded).
+//
+// TQSL command:
+//
+//	tqsl -d -x -a all -l "<location>" -u [-p <keypass>] <file.adi>
+//
+// Exit codes (TQSL): 0 = uploaded; 8 = nothing new (all duplicates/out of
+// range); 9 = some uploaded, some skipped; anything else = failure.
+func UploadLoTW(ctx context.Context, cfg ServiceConfig, tempDir, adifRecord string) (UploadResult, error) {
+	tqsl := strings.TrimSpace(cfg.TQSLPath)
+	loc := strings.TrimSpace(cfg.StationLocation)
+	switch {
+	case tqsl == "":
+		return UploadResult{}, fmt.Errorf("lotw: TQSL path not set")
+	case !fileExists(tqsl):
+		return UploadResult{}, fmt.Errorf("lotw: tqsl.exe not found at %q", tqsl)
+	case loc == "":
+		return UploadResult{}, fmt.Errorf("lotw: station location not set")
+	case strings.TrimSpace(adifRecord) == "":
+		return UploadResult{}, fmt.Errorf("lotw: empty adif record")
+	}
+
+	// Write the QSO to a temp ADIF file (minimal header keeps strict TQSL
+	// happy). Cleaned up after upload.
+	if strings.TrimSpace(tempDir) == "" {
+		tempDir = os.TempDir()
+	}
+	f, err := os.CreateTemp(tempDir, "opslog-lotw-*.adi")
+	if err != nil {
+		return UploadResult{}, fmt.Errorf("lotw: create temp file: %w", err)
+	}
+	tmpPath := f.Name()
+	defer os.Remove(tmpPath)
+	if _, err := f.WriteString("OpsLog LoTW upload\n<PROGRAMID:6>OpsLog <EOH>\n" + adifRecord + "\n"); err != nil {
+		f.Close()
+		return UploadResult{}, fmt.Errorf("lotw: write temp file: %w", err)
+	}
+	f.Close()
+
+	args := []string{"-d", "-x", "-a", "all", "-l", loc, "-u"}
+	if pwd := strings.TrimSpace(cfg.KeyPassword); pwd != "" {
+		args = append(args, "-p", pwd)
+	}
+	if cfg.WriteLog {
+		// -t writes a TQSL diagnostic log; drop it next to the temp ADIF.
+		args = append(args, "-t", filepath.Join(tempDir, "opslog-tqsl.log"))
+	}
+	args = append(args, tmpPath)
+
+	// TQSL launches a child process and contacts LoTW — give it generous
+	// time, independent of any short caller deadline.
+	runCtx, cancel := context.WithTimeout(context.Background(), 90*time.Second)
+	defer cancel()
+	_ = ctx
+
+	cmd := exec.CommandContext(runCtx, tqsl, args...)
+	out, runErr := cmd.CombinedOutput()
+	msg := strings.TrimSpace(string(out))
+
+	code := 0
+	if runErr != nil {
+		if ee, ok := runErr.(*exec.ExitError); ok {
+			code = ee.ExitCode()
+		} else {
+			return UploadResult{}, fmt.Errorf("lotw: run tqsl: %w", runErr)
+		}
+	}
+
+	switch code {
+	case 0, 9:
+		return UploadResult{OK: true, Message: "uploaded to LoTW"}, nil
+	case 8:
+		return UploadResult{OK: true, Message: "already uploaded (duplicate)"}, nil
+	default:
+		if msg == "" {
+			msg = fmt.Sprintf("tqsl exit code %d", code)
+		}
+		return UploadResult{OK: false, Message: msg}, fmt.Errorf("lotw: tqsl failed (code %d): %s", code, msg)
+	}
+}
+
+// TestLoTW validates the LoTW config: tqsl present and the chosen station
+// location exists in station_data.
+func TestLoTW(cfg ServiceConfig, stationDataPath string) (string, error) {
+	tqsl := strings.TrimSpace(cfg.TQSLPath)
+	loc := strings.TrimSpace(cfg.StationLocation)
+	if tqsl == "" || !fileExists(tqsl) {
+		return "", fmt.Errorf("lotw: tqsl.exe not found (set the TQSL path)")
+	}
+	if loc == "" {
+		return "", fmt.Errorf("lotw: pick a station location")
+	}
+	locs, err := ListStationLocations(stationDataPath)
+	if err != nil {
+		return "", fmt.Errorf("lotw: can't read station locations: %w", err)
+	}
+	for _, l := range locs {
+		if strings.EqualFold(l.Name, loc) {
+			return fmt.Sprintf("Ready — TQSL found, location %q (%s)", l.Name, l.Call), nil
+		}
+	}
+	return "", fmt.Errorf("lotw: station location %q not found in TQSL", loc)
+}

internal/extsvc/manager.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"math/rand"
 	"net/http"
+	"strings"
 	"sync"
 	"time"
 )
@@ -26,6 +27,12 @@ type Deps struct {
 	// NotifyError surfaces a failed upload (logging + optional UI event).
 	NotifyError func(svc Service, id int64, err error)
 
+	// ShouldUpload reports whether a QSO is eligible for upload to this
+	// service, based on its sent status: QRZ/Club Log upload anything not
+	// yet "Y"; LoTW uploads only QSOs whose lotw_sent matches the configured
+	// Upload flag ("N" or "R"), à la Log4OM. Returning false skips the QSO.
+	ShouldUpload func(svc Service, id int64) bool
+
 	// Logf is an optional diagnostic logger.
 	Logf func(format string, args ...any)
 }
@@ -36,9 +43,10 @@ type Deps struct {
 type Manager struct {
 	deps Deps
 
-	mu  sync.Mutex
+	mu      sync.Mutex
-	cfg ExternalServices
+	cfg     ExternalServices
-	rnd *rand.Rand
+	rnd     *rand.Rand
+	pending map[Service][]int64 // QSO ids queued for ModeOnClose upload
 }
 
 func NewManager(deps Deps) *Manager {
@@ -49,7 +57,8 @@ func NewManager(deps Deps) *Manager {
 		deps: deps,
 		// Seeded from the clock; the delay only needs to be unpredictable
 		// enough to spread bursts, not cryptographically random.
-		rnd: rand.New(rand.NewSource(time.Now().UnixNano())),
+		rnd:     rand.New(rand.NewSource(time.Now().UnixNano())),
+		pending: map[Service][]int64{},
 	}
 }
 
@@ -91,13 +100,30 @@ func (m *Manager) OnQSOLogged(id int64) {
 
 	// QRZ.com
 	if qrz := cfg.QRZ; qrz.AutoUpload && qrz.APIKey != "" {
-		m.scheduleUpload(ServiceQRZ, id, qrz)
+		m.route(ServiceQRZ, id, qrz)
 	}
 	// Club Log — email + password + callsign are enough (no API key).
 	if cl := cfg.Clublog; cl.AutoUpload && cl.Email != "" && cl.Password != "" {
-		m.scheduleUpload(ServiceClublog, id, cl)
+		m.route(ServiceClublog, id, cl)
 	}
-	// LoTW will be added here.
+	// LoTW — needs TQSL + a station location.
+	if lt := cfg.LoTW; lt.AutoUpload && lt.TQSLPath != "" && lt.StationLocation != "" {
+		m.route(ServiceLoTW, id, lt)
+	}
+}
+
+// route sends a logged QSO down the configured timing path: queue it for the
+// app-close batch, or schedule an immediate / delayed upload.
+func (m *Manager) route(svc Service, id int64, cfg ServiceConfig) {
+	if cfg.UploadMode == ModeOnClose {
+		m.mu.Lock()
+		m.pending[svc] = append(m.pending[svc], id)
+		n := len(m.pending[svc])
+		m.mu.Unlock()
+		m.logf("extsvc: %s queued QSO %d for on-close upload (%d pending)", svc, id, n)
+		return
+	}
+	m.scheduleUpload(svc, id, cfg)
 }
 
 // scheduleUpload either uploads now (immediate) or arms a timer (delayed).
@@ -111,10 +137,104 @@ func (m *Manager) scheduleUpload(svc Service, id int64, cfg ServiceConfig) {
 	go m.upload(svc, id, cfg)
 }
 
-// upload performs the actual push. It builds a fresh, lifecycle-independent
+// PendingCount returns how many QSOs are queued for on-close upload across
-// context so a delayed upload still completes even if it fires close to
+// all services. The shutdown sequence uses it to decide whether to show the
-// shutdown.
+// upload step.
-func (m *Manager) upload(svc Service, id int64, cfg ServiceConfig) {
+func (m *Manager) PendingCount() int {
+	m.mu.Lock()
+	defer m.mu.Unlock()
+	n := 0
+	for _, ids := range m.pending {
+		n += len(ids)
+	}
+	return n
+}
+
+// FlushOnClose uploads every queued QSO. Called from the shutdown sequence.
+// QRZ/Club Log go one-by-one (fast HTTP); LoTW is signed and uploaded as a
+// single TQSL batch. Returns the number of QSOs uploaded successfully.
+func (m *Manager) FlushOnClose() int {
+	m.mu.Lock()
+	pending := m.pending
+	m.pending = map[Service][]int64{}
+	cfg := m.cfg
+	m.mu.Unlock()
+
+	uploaded := 0
+	for svc, ids := range pending {
+		if len(ids) == 0 {
+			continue
+		}
+		switch svc {
+		case ServiceLoTW:
+			uploaded += m.flushLoTWBatch(ids, cfg.LoTW)
+		default:
+			var sc ServiceConfig
+			switch svc {
+			case ServiceQRZ:
+				sc = cfg.QRZ
+			case ServiceClublog:
+				sc = cfg.Clublog
+			}
+			for _, id := range ids {
+				if m.upload(svc, id, sc) {
+					uploaded++
+				}
+			}
+		}
+	}
+	return uploaded
+}
+
+// flushLoTWBatch signs+uploads all queued LoTW QSOs in one TQSL run, then
+// stamps each as uploaded on success.
+func (m *Manager) flushLoTWBatch(ids []int64, cfg ServiceConfig) int {
+	var records []string
+	var kept []int64
+	for _, id := range ids {
+		// Skip QSOs not eligible (sent status doesn't match Upload flag).
+		if m.deps.ShouldUpload != nil && !m.deps.ShouldUpload(ServiceLoTW, id) {
+			continue
+		}
+		if rec, ok := m.deps.BuildADIF(id, ""); ok {
+			records = append(records, rec)
+			kept = append(kept, id)
+		}
+	}
+	if len(records) == 0 {
+		return 0
+	}
+	res, err := UploadLoTW(context.Background(), cfg, "", strings.Join(records, "\n"))
+	if err != nil || !res.OK {
+		if err == nil {
+			err = errFromResult(res)
+		}
+		m.logf("extsvc: lotw batch upload (%d QSOs) failed: %v", len(kept), err)
+		if m.deps.NotifyError != nil {
+			m.deps.NotifyError(ServiceLoTW, 0, err)
+		}
+		return 0
+	}
+	m.logf("extsvc: lotw batch upload OK (%d QSOs)", len(kept))
+	if m.deps.MarkUploaded != nil {
+		for _, id := range kept {
+			m.deps.MarkUploaded(ServiceLoTW, id, res.LogID)
+		}
+	}
+	return len(kept)
+}
+
+// upload performs the actual push and returns true on success. It builds a
+// fresh, lifecycle-independent context so a delayed upload still completes
+// even if it fires close to shutdown.
+func (m *Manager) upload(svc Service, id int64, cfg ServiceConfig) bool {
+	// Skip QSOs that aren't eligible (already sent, or sent status doesn't
+	// match the configured Upload flag).
+	if m.deps.ShouldUpload != nil && !m.deps.ShouldUpload(svc, id) {
+		m.logf("extsvc: %s upload of QSO %d skipped (not eligible)", svc, id)
+		return false
+	}
+
 	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
 	defer cancel()
 
@@ -126,7 +246,7 @@ func (m *Manager) upload(svc Service, id int64, cfg ServiceConfig) {
 		record, ok := m.deps.BuildADIF(id, cfg.ForceStationCallsign)
 		if !ok {
 			m.logf("extsvc: %s upload of QSO %d skipped (no record)", svc, id)
-			return
+			return false
 		}
 		res, err = UploadQRZ(ctx, m.deps.Client, cfg.APIKey, record)
 	case ServiceClublog:
@@ -135,11 +255,19 @@ func (m *Manager) upload(svc Service, id int64, cfg ServiceConfig) {
 		record, ok := m.deps.BuildADIF(id, "")
 		if !ok {
 			m.logf("extsvc: %s upload of QSO %d skipped (no record)", svc, id)
-			return
+			return false
 		}
 		res, err = UploadClublog(ctx, m.deps.Client, cfg, record)
+	case ServiceLoTW:
+		// LoTW signs the QSO's own station call via TQSL — no override.
+		record, ok := m.deps.BuildADIF(id, "")
+		if !ok {
+			m.logf("extsvc: %s upload of QSO %d skipped (no record)", svc, id)
+			return false
+		}
+		res, err = UploadLoTW(ctx, cfg, "", record)
 	default:
-		return
+		return false
 	}
 
 	if err != nil || !res.OK {
@@ -150,11 +278,12 @@ func (m *Manager) upload(svc Service, id int64, cfg ServiceConfig) {
 		if m.deps.NotifyError != nil {
 			m.deps.NotifyError(svc, id, err)
 		}
-		return
+		return false
 	}
 
 	m.logf("extsvc: %s upload of QSO %d OK (logid=%q)", svc, id, res.LogID)
 	if m.deps.MarkUploaded != nil {
 		m.deps.MarkUploaded(svc, id, res.LogID)
 	}
+	return true
 }

internal/lookup/lookup.go

@@ -7,6 +7,7 @@ import (
 	"database/sql"
 	"errors"
 	"fmt"
+	"math"
 	"strings"
 	"sync"
 	"time"
@@ -156,8 +157,14 @@ func normalizeNames(r *Result) {
 	r.Name = titleCase(r.Name)
 	r.QTH = titleCase(r.QTH)
 	r.Address = titleCase(r.Address)
+	// 3 decimals (~110 m) is plenty for a contact's coordinates and keeps
+	// the displayed/exported value tidy.
+	r.Lat = round3(r.Lat)
+	r.Lon = round3(r.Lon)
 }
 
+func round3(f float64) float64 { return math.Round(f*1000) / 1000 }
+
 // titleCase lowercases the whole string then capitalises the first letter of
 // each word. Word boundaries are any non-alphanumeric rune (space, hyphen,
 // apostrophe, slash…), so "vetraz-monthoux" → "Vetraz-Monthoux" and

internal/qso/qso.go

@@ -323,6 +323,51 @@ func (r *Repo) GetByID(ctx context.Context, id int64) (QSO, error) {
 	return scanQSO(row)
 }
 
+// UploadRow is a lightweight QSO projection for the QSL Manager grid.
+type UploadRow struct {
+	ID       int64  `json:"id"`
+	QSODate  string `json:"qso_date"` // ISO UTC; the UI formats it
+	Callsign string `json:"callsign"`
+	Band     string `json:"band"`
+	Mode     string `json:"mode"`
+	Country  string `json:"country"`
+	Status   string `json:"status"` // the matched per-service sent status
+}
+
+// uploadStatusCols whitelists the per-service sent-status columns the QSL
+// Manager may filter on (guards the dynamic column name in the query).
+var uploadStatusCols = map[string]bool{
+	"lotw_sent":                 true,
+	"qrzcom_qso_upload_status":  true,
+	"clublog_qso_upload_status": true,
+}
+
+// ListForUpload returns QSOs whose per-service sent-status column equals
+// value ("" matches blank/NULL). Used by the QSL Manager's "Select required".
+func (r *Repo) ListForUpload(ctx context.Context, column, value string) ([]UploadRow, error) {
+	if !uploadStatusCols[column] {
+		return nil, fmt.Errorf("invalid upload column %q", column)
+	}
+	rows, err := r.db.QueryContext(ctx,
+		`SELECT id, qso_date, callsign, COALESCE(band,''), COALESCE(mode,''),
+		        COALESCE(country,''), COALESCE(`+column+`,'')
+		   FROM qso WHERE COALESCE(`+column+`,'') = ?
+		  ORDER BY qso_date DESC`, value)
+	if err != nil {
+		return nil, fmt.Errorf("list for upload: %w", err)
+	}
+	defer rows.Close()
+	var out []UploadRow
+	for rows.Next() {
+		var u UploadRow
+		if err := rows.Scan(&u.ID, &u.QSODate, &u.Callsign, &u.Band, &u.Mode, &u.Country, &u.Status); err != nil {
+			return nil, err
+		}
+		out = append(out, u)
+	}
+	return out, rows.Err()
+}
+
 // MarkQRZUploaded stamps QRZCOM_QSO_UPLOAD_STATUS=Y and the upload date on
 // a QSO after a successful push to the QRZ.com logbook. date is an ADIF
 // YYYYMMDD string. Only the two QRZ columns are touched — no full-row
@@ -351,6 +396,19 @@ func (r *Repo) MarkClublogUploaded(ctx context.Context, id int64, date string) e
 	return nil
 }
 
+// MarkLoTWUploaded stamps LOTW_QSL_SENT=Y and the sent date after a
+// successful TQSL upload. date is an ADIF YYYYMMDD string.
+func (r *Repo) MarkLoTWUploaded(ctx context.Context, id int64, date string) error {
+	_, err := r.db.ExecContext(ctx,
+		`UPDATE qso SET lotw_sent = 'Y', lotw_sent_date = ?,
+		   updated_at = strftime('%Y-%m-%dT%H:%M:%fZ', 'now') WHERE id = ?`,
+		date, id)
+	if err != nil {
+		return fmt.Errorf("mark lotw uploaded %d: %w", id, err)
+	}
+	return nil
+}
+
 // Update overwrites all editable fields of an existing QSO. updated_at is bumped.
 func (r *Repo) Update(ctx context.Context, q QSO) error {
 	if q.ID == 0 {