[SEDXC] [sedxc] Noise wipes out the bands

[Weymouth Walker]

David ... this time of year, I would suspect
the neighbor's Christmas decorations ...

Hope you find it ...

73, Wey - K8EAB

On 11/29/2012 7:51 PM, David Thompson wrote:
>
> My son told me his speaker starts to hum in the presence of a strong 
> signal
> and the humming started at 6:30AM this morning.
> I told him I was not transmitting and turned on the Yaesu in AM mode 
> and all
> the bands from 160 to 15 had strong buzzing with a metal sound in the
> background. Best guess its a motor with bruches but those switching power
> supplies might sound the same way.
>
> I picked up my little sport hand held AM radio and the noise is all 
> over the
> house. The noise drops off walking to the house on the south side of me.
> The house on the other side has a fence but walking around the fence 
> keeps
> the AM radio hopping even wiping out WSB.
>
> I have been all over my house and turned off TV sets and electronics 
> and no
> change. I checked the AC panel and the door bell buzzer. No change. I
> have a new Heating/AC unit with a battery operated pump but no noise 
> on AM
> from that. The wife is not keen on flipping the master switch to see 
> if the
> noise goes away or not. The last thing I can do is cut all the sons 
> big PC
> equipment (it has 4 power supplies) leaving the speaker on to see if 
> that is
> the problem.
>
> The noise is so loud on the am hand held that it echos.
>
> I did notice that trying to hear JX9JKA on 24 recently that I had a noise
> that came up at about 9AM and disappeared about 3PM but never listened to
> it on AM just SSB.
>
> The house is 34 years old but the wiring is in good shape. Except for 10
> and 12 meters I am off the air with this noise.
>
> Any ideas where to look?
>
> 73 Dave K4JRB
>
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