[Mldxcc] [NCCC] Need help from the brain trust--Buzz/hum and broadcast radio
Rich NU6T
rehill at ix.netcom.com
Sun Nov 14 15:47:59 PST 2010
Thanks. I did unplug everything and restarted with a minimum system and
then added one item, removed it and so on. The only change is when
removing the mic plug.
Rich
NU6T
On 11/14/2010 3:35 PM, CATFISHTWO at aol.com wrote:
> can you switch out power supplies, and also try unplugging any wall warts
> on the same circuit one at a time, perhaps it is being generated in
> something close by.. good luck
>
> Tom
> N6AJR
>
>
> In a message dated 11/14/2010 2:16:35 P.M. Pacific Standard Time,
> rehill at ix.netcom.com writes:
>
> Help! I'm trying to get set up for SS SSB and have a buzz/hum on 40m
> and 20m (not checked on other bands but probably there too) when I push
> the PTT. It is constant across the band and the volume is constant
> regardless of the K3 RF knob position. I hear it whether the K3 is in
> Test mode (no RF output) or normal mode. With the buz/hum, I hear a CNN
> radio broadcast. I don't hear the buz/hum or the broadcast listening to
> RX on the K3.
>
> Antenna is a dipole up 57 feet. Feed line is coax with 5 big ferrite
> rings and 6 turns of coax (RG-213). The coax is a complete run to the
> radio. I've put 2 or more ferrite clamp-ons on every wire running to
> the radio, but not reducing the buz/hum.
>
> My AM/FM/SW radio shows high noise across the AM band in DX mode. I did
> not find that broadcast listening to the AM radio in local or DX mode.
> (Loral Langmier and then Chris McKay shows).
>
> Any suggestions for resolving this will be appreciated. If anyone is
> available for a 40m contact, I'd like to see if this is a RX only
> problem or an also a TX problem.
>
> Thanks.
>
> Rich
> NU6T
>
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