At 11:09 10/29/2012, Ulf Holt wrote:
Have been out from home for some days now, but
I'm back, and have just rewired the Mic. Works
fine on all bands except 15 and 10 meters. It's
not so bad on 15 meters, but 10 meter is really
bad. I know my antenna is out of tune on 10
meters, but it's not even supported on 12, 17
and 6 meters, and there are no problems there.
Have tried ferrite bead on the mic cable, but
does not seem to make any difference.
I had terrible RFI problems until I put heavy
ferrites on my F3K front panel connected mic.
73
Ulf
-----Opprinnelig melding-----
Fra: FlexRadio
[mailto:flexradio-boun...@flex-radio.biz] På vegne av Tim Ellison
Sendt: 26. oktober 2012 03:42
Til: flexradio@flex-radio.biz
Emne: Re: [Flexradio] RFI on 10 meter
Check the wiring on the mic cable. If it is a
Heil cable, the MIC- and ground may be bonded
(connected) together (they should not be
connected) and the ground/cable shield may not
be connected to the shell of the 8-pin Foster connector (which it should).
Then try a ferrite bead on the mic cable.
-Tim
On 10/25/2012 5:51 PM, Ulf Holt wrote:
>
> Some more info.
>
> Antenna is Butternut HF6V mounted on the barn
using the metal roof as a counterpoise.
> Mic is Heil HM-5
> I have a ground strap from my FLEX to the PSU
on my computer and also ground to a copper
plate buried outside the barn. The grounding system in Norway is very bad.
>
> 73
>
> Ulf
>
> Den 25. okt. 2012 kl. 23:39 skrev "Michael
Walker" <va...@portcredit.net<mailto:va...@portcredit.net>>:
>
> Ulf
>
> You will need to describe more of your
setup. Antennas, grounds, type of mics, etc.
>
> If you have a ground on the radio, try removing it and see if it clears up.
>
> RFI issues require a lot of trial and error
testing. It is not a fault of the radio unfortunately.
>
> Mike va3mw
>
>
> On Thu, Oct 25, 2012 at 4:09 PM, Ulf Holt
<ulf.h...@kragero-data.no<mailto:ulf.h...@kragero-data.no>> wrote:
> I have had my FLEX-5000A for a couple of
months now, and I love it. Get great reports on
audio on all bands, (haven't tested 6 meter
yet, since I don't have an antenna for this
band), but on 10 meter they complain about
really bad RF in the audio. What can be the cause, and what can I do about it?
>
> 73 de LA2SL
>
> Ulf
>
>
> _______________________________________________
> FlexRadio Systems Mailing List
> FlexRadio@flex-radio.biz<mailto:FlexRadio@flex-radio.biz>
> http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
> Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/
> Knowledge Base: http://kc.flexradio.com/ Homepage:
> http://www.flexradio.com/
>
> _______________________________________________
> FlexRadio Systems Mailing List
> FlexRadio@flex-radio.biz
> http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
> Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/
> Knowledge Base: http://kc.flexradio.com/ Homepage:
> http://www.flexradio.com/
_______________________________________________
FlexRadio Systems Mailing List
FlexRadio@flex-radio.biz
http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/
Knowledge Base: http://kc.flexradio.com/ Homepage: http://www.flexradio.com/
_______________________________________________
FlexRadio Systems Mailing List
FlexRadio@flex-radio.biz
http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/
Knowledge Base: http://kc.flexradio.com/ Homepage: http://www.flexradio.com/
--
Dave Gomberg, San Francisco NE5EE Programming since 1961
All addresses, phones, etc. at http://www.wcf.com/ham/info.html
-----------------------------------------------------------------
_______________________________________________
FlexRadio Systems Mailing List
FlexRadio@flex-radio.biz
http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/
Knowledge Base: http://kc.flexradio.com/ Homepage: http://www.flexradio.com/
