[Elecraft] P3 Noise signature

[Merv Schweigert]

Yes I should have mentioned that Eric. I made an adapter from a small box
that has a male BNC on one end,  diodes inside, and a female BNC
on the other end,    I use a whip with a bnc for general hunting, or a coax
cable to a hand held loop antenna for some directional work, depending
on freq in use.
Works quite well as you can see the noise pattern that is bugging you and
see the signal increase or decrease much better than on a metered
instrument.
For a battery I steal one of my model aircraft LiPo types,  have several
packs that are 5000 ma 12 volt, they last plenty long to noise hunt.
Just have to overcome the idea of taking the P3 out of the shack into the
field.  :o)

73 Merv  K9FD/KH6


> IMPORTANT -  If you do this, make sure to protect the P3 IF input with 
> back to back diodes. Static electricity on the whip antenna can harm 
> the input pre-amp. (Ask me how I know..)
>
> I made an adapter here with a male-female BNC terminator with the back 
> to back diodes internally instead of the 50 ohm resistor.
>
> I power the P3 with a 10 cell AA alkaline battery pack to search for RFI.
>
> 73,
>
> Eric
> elecraft.com
>
> On 5/1/2013 10:10 AM, Merv Schweigert wrote:
>> Use your P3,  put an antenna on the IF port and it will receive 
>> signals on the
>> freq that you see the interference,  power it off a small battery and 
>> walk
>> around or use a directional antenna to pinpoint the location of the 
>> interference,
>> P3 will tune the band needed.
>> One of the uses for the P3 that is overlooked,
>> Merv K9FD/KH6
>>
>
> .
>