[Elecraft] P3 deaf ??

Jim Balls makidoja at hotmail.co.uk
Fri Jan 28 13:58:18 EST 2011


OK update,

Now tried the P3 on a second K3 which has the IF output mod done and I'm
getting the same effect, it needs a good strong signal before any trace of a
signal on the P3

S9+20 signals are shown at about S6

Anything below about S6 is not visible on the P3.

Any ideas before the seller has it back!

Jim M0CKE

-----Original Message----- 
From: Jim Balls
Sent: Friday, January 28, 2011 4:33 AM
To: elecraft at mailman.qth.net
Subject: [Elecraft] P3 deaf ??

Hi all,

Used the P3 for the first time last weekend during the BARTG RTTY contest.

I did notice that all signal levels shown by the P3 were very low, for 
instance with a noise level of around s3 on the K3  and a RTTY signal in the 
clear at S5-6 there was no trace on the P3 on either the waterfall or scope. 
Signals that are peaking S9 +20 on the radio with no preamp are 
around –91dbm (S6) on the P3.

I’ve checked cables etc and K3 had the IF output mod done.

Any ideas as I see people saying you can see signals on the waterfall 
sometimes before you can hear them, not so the case here.

Thanks

Jim
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