Constant Buzzing Sound in my Transmit Audio

[KG1Q]

I am getting reports of a constant buzzing sound in my audio, I am using a RRC-1258 mkII connected to my Kenwood TS-480HX. The buzzing only seems to be present when my control unit is running off the wifi.

This is what i've done so far

1) I have tried both wiring methods for the jumpers for the 480
2) I have tried different 12v power supplies. Even tried it off my Vehicles battery
2) I have tried running the audio quality down on 0 - alaw 8khz, the buzzing just about disappears, but so does my audio
3) I have tried running the audio at 1 - Linear 12 bits 8khz, the buzzing is reduced, but my audio reduces as well
4) I am running in program mode 5
5) I set RTP tx mode to continuous
6) Both com ports are disabled
7) I increased rx jitter buffer to 10
I increased rx jitter delay to 9
9) I set audio packet size to 20
10) I have checked continuity on the straps right at the socket level

Any thoughts would be appreciated

Mark
KG1Q

[sm2o]

Hi

There is no known reason for buzzing sound via Wifi. Have you tried to connect to another accesspoint ?
There is no difference in levels between different codecs, but you must use codecs with the same sampling rates in both units otherwise it will not work

73 de mike

[n6ldj]

You might record the audio using your phone, etc. and post it here.