Fix SWR read

README.md

@@ -103,7 +103,7 @@ is up) with the following info:
   - `preamp`: PAMP0 means the preamp is off
   - `voltage`: Vd voltage, updated when a TX/TUNE is over
   - `txpwr`: current transmit power setting in percent
-  - `swr`: reported SWR, it seems that the Icom IC-705 always reports 0.0
+  - `swr`: reported SWR
 
 - Third status bar line:
   - `up`: how long the audio/serial connection is active

civcontrol.go

@@ -462,7 +462,7 @@ func (s *civControlStruct) decodeVdSWRS(d []byte) bool {
 		if len(d) < 3 {
 			return !s.state.getSWRSent
 		}
-		statusLog.reportSWR(((float64(int(d[1])<<8) + float64(d[2])) / 0x0241) * 16)
+		statusLog.reportSWR(((float64(int(d[1])<<8)+float64(d[2]))/0x0120)*2 + 1)
 		if s.state.getSWRSent {
 			s.state.getSWRSent = false
 			return false