diff --git a/frontend/src/components/YaesuPanel.tsx b/frontend/src/components/YaesuPanel.tsx
index 51bef15..2506c0b 100644
--- a/frontend/src/components/YaesuPanel.tsx
+++ b/frontend/src/components/YaesuPanel.tsx
@@ -352,11 +352,11 @@ export function YaesuPanel({ onReportRST, onKeySpeed }: {
             title={onReportRST ? t('yaesu.sToRst') : undefined} />
           {/* Watts as MEASURED, not the power setting scaled by a percentage:
               the setting says what was asked for, the meter says what left. */}
-          <MeterBar label="PWR" value={view.power_w ?? 0} unit="W" lo={0} hi={Math.max(100, view.rf_power || 100)} accent="#0ea5e9"
+          <MeterBar label="PWR" value={view.transmitting ? (view.power_w ?? 0) : 0} unit="W" lo={0} hi={Math.max(100, view.rf_power || 100)} accent="#0ea5e9"
             display={view.transmitting ? Math.round(view.power_w ?? 0) + 'W' : '—'} />
           {/* The RATIO, as the rig shows it — a percentage of meter travel is
               not something an operator can act on. The bar keeps the travel. */}
-          <MeterBar label="SWR" value={view.swr_meter} lo={0} hi={100} accent="#f59e0b"
+          <MeterBar label="SWR" value={view.transmitting ? view.swr_meter : 0} lo={0} hi={100} accent="#f59e0b"
             display={view.transmitting ? (view.swr && view.swr >= 1 ? view.swr.toFixed(1) : '1.0') : '—'} />
         </div>
       </Card>
diff --git a/internal/cat/yaesu_panel.go b/internal/cat/yaesu_panel.go
index a91b025..fe85c0a 100644
--- a/internal/cat/yaesu_panel.go
+++ b/internal/cat/yaesu_panel.go
@@ -193,9 +193,17 @@ func (y *Yaesu) readPanel(mode string, split bool, txHz int64) {
 			}
 		}
 	} else {
-		// Zeroed rather than frozen: a stale SWR bar from the last transmission
-		// reads as a live measurement.
+		// Zeroed rather than frozen: a stale reading from the last transmission
+		// reads as a live one.
+		//
+		// EVERY transmit value has to be cleared here, and the peak-hold state with
+		// them. Clearing only the two bar percentages left the watts and the SWR
+		// ratio standing — the PWR bar stayed at full scale after the operator
+		// stopped transmitting — and a peak left in the holder would have carried
+		// the old reading into the next transmission.
 		y.panel.PowerMeter, y.panel.SWRMeter = 0, 0
+		y.panel.PowerW, y.panel.SWR = 0, 0
+		y.powerPeak, y.powerWPeak, y.swrPeak = meterPeak{}, meterPeak{}, meterPeak{}
 	}
 
 	y.panelCycle++