The main difference between the P3 and PX3 is the input.  The P3 has an IF input while the PX3 input must be baseband RX I and Q signals.

73,
Don W3FPR

On 9/18/2018 1:59 PM, George Thornton wrote:

I also have worked extensively with the P3.   I find it very helpful.  There is 
a wealth of knowledge you get from being able to visually see the spectrum you 
are working.

That being said, some of the advantages of the P3 come from its close 
integration with the K3.  I would believe that close integration would not be 
possible with the K2.

There are also other panadapter options including the LP-Pan, which will allow 
you to view the K2's spectrum.   I much prefer the P3 because of the handy 
controls that allow you to adjust the image, but some of those other options 
may be less expensive.

Think also of where you might go with all this.  The K2 is a wonderful rig and 
more than adequate for HF work.  If yuou get really serious about this you may, 
as I did, choose to upgrade to either the K3s or KX3.  The P3 could be used 
with the K3s but the KX3 has a different, smaller unit.





-----Original Message-----
From: elecraft-boun...@mailman.qth.net <elecraft-boun...@mailman.qth.net> On 
Behalf Of Don Wilhelm
Sent: Tuesday, September 18, 2018 10:13 AM
To: Don Schroder <donandde...@hotmail.com>; elecraft@mailman.qth.net
Subject: Re: [Elecraft] P3 Panadapter

Don,

You can use it with the K3 (the P3 input can be tuned anywhere between 455kHz 
and 21 MHz).
You will have to add an IF output to the K2.  DX Engineering is now selling the 
Clifton Labs buffer amplifier which can be used for that purpose.

I don't know what documentation is being sent with the DX Engineering kit, but 
if you need it, I can supply the original Clifton Labs document for the K2.

73,
Don W3FPR

On 9/18/2018 12:53 PM, Don Schroder wrote:
Morning!

I have a kit K2 s/n 7818 that is about 2/3rds complete. I’m a newbie and this is my 
first radio. I’ve been  looking at additions for my non-existent ham shack and am 
curious about the Elecraft P3. Looking at the advertising, I see it is for the K3 
& K3s, and other radios.

Hence, my question. How many of you consider the P3 to be a must have, and can 
it be used with a K2 transceiver? As a side note, what other optional equipment 
to the K2 would you consider necessary?

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