[Elecraft] P3 RFI

[John Ragle]

List...

     I am using a K3 with an XV144 to a TE brick, to a 5 el beam at 35 
'. The P3 is atop the K3. There is no discernible change in receiver 
noise level at the K3 listening on 50.100 when the P3 is on vs. off. I 
also have an ICOM 910H sitting about 1.25 feet from the P3, and 
listening on 144.200 there is no discernible change in noise level 
between P3 on and off.

     Be reassured...

John Ragle -- W1ZI

=====

On 7/6/2011 4:29 PM, Stephen Prior wrote:
> Ed,
>
> Listening on a TH-D72 on about 137MHz, yes the noise from the P3 is indeed
> loud.  However, by the time I have more than  a metre or so separation
> between the P3 and the handie, the noise drops below the handie's squelch
> threshold, so for me at least, it's a very localised phenomenon.
>   The interference is also present on 2m, but would certainly be inaudible
> with an antenna placed well outside of the shack.
>
> 73 Stephen G4SJP
>
> On 6 July 2011 21:20, K7WIA<emoss98133 at msn.com>  wrote:
>
>> FWIW
>>
>> This morning we had a very good opening on 6 meters to the east coast Maine
>> down to Florida from the PNW,
>> When the band died, I thought it would be a good time to go out and snoop
>> the neighborhood for the line noise source that bugs me,   So i got out my
>> MFJ Line Noise Meter, put it on the desk to put in a new battery.   I
>> turned
>> it on and what a racket. so I snooped the shack and found it comes from the
>> P3.
>> turn the power off on the P3 and silence,  I could get 30 feet away before
>> I
>> could not hear it any more.
>> I don't hear any of the RFI on any band  160<>6. So I don't know if it is
>> there on 2 meters, The MFJ receives on the Aircraft band around 137 MHZ. so
>> I don't know if would effect 2 meters or not.
>>
>>   Ed K7WIA