Audio system picking up RF
Nov 23rd 2015, 19:59 | |
KK6NTLJoined: Jul 3rd 2014, 13:21Total Topics: 0 Total Posts: 0 |
I have been operating my FT450D 100w with a homebrew fan dipole with 40-20-10m legs for several months. Most commonly SSB and occasional digital on 20m. I have never experienced any problems until I returned from a 10 day trip and now have audio interference on the home sound system when transmitting SSB on 20-15-10m. 40m, VHF and UHF (different antenna) is no problem. Nothing in either the shack or the audio system has been changed. Varying the transmit power makes no difference. When I get this dealt with I will attack the S9+30 background noise! Any advice is greatly appreciated. |
Nov 23rd 2015, 21:07 | |
W1VTSuper Moderator Joined: Apr 4th 1998, 00:00Total Topics: 0 Total Posts: 0 |
http://www.arrl.org/audio-1 Our web page on this issue Zack W1VT ARRL Senior Lab Engineer |