[Elecraft] P3 not displaying any signal {wexp3}

[John Lemay]

Ron

There's a very simple test you can do:-

Connect a receiving aerial direst to the "IF Input"  of the P3. You should
see a rise of some 10 or 20dB in the noise floor.

You have remembered to connect the tmp cable from the RF board to the front
panel haven't you ?

Regards

John G4ZTR


-----Original Message-----
From: elecraft-bounces at mailman.qth.net
[mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Ron Hahn (EI2JP)
Sent: 09 November 2010 20:40
To: elecraft at mailman.qth.net
Subject: [Elecraft] P3 not displaying any signal {wexp3}

Greetings Fellow Elecrafters,

With great anticipation I finally got around to assembling my P3 (SN 211)
last weekend.  Assembly went great and power on tests were encouraging.

Unfortunately, it fails to display any output from the IF output port on my
K3.  Nothing.  Every function seems to work just fine except that S9 signals
on 30m (freq displayed OK) do not show anything on the display.

So, I first thought that maybe I had a bad interconnect cable so tried
another ... nothing.

Moved the frequency knob of the K3 around ... frequency display tracks the
VFO.

Tried every function on the P3 ... everything appears to work fine.

I have not made the +10dB mod to my transverter board nor have I upgraded
the firmware in the P3 from factory (0.28).

I am now wondering if I have a busted IF output or (sigh) a faulty P3??

Suggestions on how to troubleshoot this further please?

Ron
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