Bad audio reports while mobile.

Author Post

Andy, G7SQW

Tue Aug 12 2008, 07:37PM
Just wondered if anyone has had the same problem as me on 6m.
I run all bands from 80m to 6m mobile and have good success except on 6m as people tell me I have very bad audio but only on this band.
I use an ic 706, heil traveller headset and either a 2m 5/8 or a pro-am 6m mono band whip.
All my mounts are grounded very well and I have no problems even down on 80m with my outbacker outreach antenna.
Thanks for looking and I would appreciate any advice and help.
Back to top
Steve, G4WCS
Wed Aug 13 2008, 02:32PM
Steve, G4WCS
Registered Member #283
Joined: Fri Apr 18 2008, 11:55AM

Posts: 70
possibly RF getting back into the set via the microphone connection. try clamp on ferrites on all leads into the radio
Back to top
Andy, G7SQW
Wed Aug 13 2008, 04:32PM
Andy, G7SQW
Registered Member #132
Joined: Thu Apr 03 2008, 07:42PM

Posts: 8
Thanks Steve for taking the time to reply to my post I really appreciate it and will give a go at the weekend.
Hopefully this will cure the problem and I will be all OK again.
Back to top
Ian, G5WQ
Wed Aug 13 2008, 07:42PM
Ian, G5WQ
Registered Member #81
Joined: Sun Mar 23 2008, 07:57PM

Posts: 29
hi andy
as steve said above, try clamp on ferrites on mic lead .
if you have earphones or an extension speaker, try removing this and check if rf pickup is still present .

sometimes having an extension speaker fitted can be the problem , my TS60 was prone to this .

try altering the length of the coax feedline, add to or shorten it and see what occurs .

if you have coax joiners in the feedline you can play with differing line lengths ans will probably find one that suits and doesnt pickup rf .

coil the coax into a choke near to the feedpoint somewhere , as many turns as you can but anything around 4-6turns of 4" diameter if its rg58 , you can also fit clamp on ferrites to the feedline near the feedpoint .

i use an FT100-D with a HI-Q antennas 3-80 screwdriver [which tunes 6m when near to the 40m setting ] .
the only problem i get is with the radio coming through into the ICE speakers , but i just switch the cd/radio off to stop that .

i know your frustration though .
73 ian
Back to top