Baofeng and Signalink

Signalink makes a cable to connect a Baofeng or Wouxun or Kenwood HT to their nifty little box.  The cable is called a SLCABHTW.     One of the nic things is the internal wiring is the same as if you are using the 6 pin DIN connector and you can use the SLMOD6PM jumper module with it.

If used with direwolf and RMS/Express it is plug and play.    If you are using the Baofeng/Signalink combination with FLDIGI you need to tell FLDIGI to make sure in
Configuration->Sound Card->Right Channel you have "Modem signal on right and left channels" selected.     With that, life is great.

Low transmit Volume using the Signalink and TM-V71

I had a problem with low transmit volume when using the Signalink USB sound card connected to the Kenwood TM-V71 radio.   Played with all sorts of settings and then found the problem buried in a Signalink FAQ.

When using the Signalink for 1200 baud packet make sure you DO NOT have the radio set for 9600 baud.   It works, but the transmit audio is very low.   I could hear the transmission on a radio wight the volume turned most of the way up but when the 9600 baud settings were taken off, the transmit volume went what I considered normal.

The Direwolf software TNC shows the audio level of each packet heard.   With 9600 baud enabled on the V71 the level was 2 - 3.    When 9600 baud was disabled on the radio, the audio level went back to 25-30  so it is not just subjective.

Remember,  this is for 1200 baud packet.   Your milage might very if doing something different.