fix: use official SPE band-code table from the manual (00=60m,01=160m,...)

internal/spe/spe.go

@@ -309,13 +309,16 @@ func (c *Client) decodeCSV(payload string) {
 // bandName maps the SPE 2-digit band index to a human band label, falling back to
 // the raw code for anything unrecognised.
 func bandName(code string) string {
+	// SPE band index (from the Expert user manual): 0=60m, 1=160m, 2=80m, 3=40m,
+	// 4=30m, 5=20m, 6=17m, 7=15m, 8=12m, 9=10m, 0xA(=10)=6m. The status frame reports
+	// it as a 2-digit decimal string ("05", "10", …).
 	switch strings.TrimSpace(code) {
 	case "00":
-		return "160m"
-	case "01":
-		return "80m"
-	case "02":
 		return "60m"
+	case "01":
+		return "160m"
+	case "02":
+		return "80m"
 	case "03":
 		return "40m"
 	case "04":
@@ -332,8 +335,6 @@ func bandName(code string) string {
 		return "10m"
 	case "10":
 		return "6m"
-	case "11":
-		return "4m"
 	case "":
 		return ""
 	default: