Michael,
There are some who would want to do just that. I recently had a
customer who wanted to use his LP-Pam or P3 with his K2; I added the
Clifton Labs Z10000-k2 for him. He already had the LP-Pan and the P3
available.
Yes, if one does not have those devices available, the price of the
Flex-1500 becomes attractive, but that may not satisfy all the
customer's parameters.
73,
Don W3FPR
On 8/28/2013 7:36 PM, Michael Babineau wrote:
Terry et al :
Clifton Laboratories makes a product called the Z10000B
(http://www.cliftonlaboratories.com/k2_interface.htm)
that will add a IF port to the K2 or Orion, suitable for use with the LP-PAN
and P3.
To get back to the original question, I am not sure how many people would want
to add a P3 to a K2 ?
For the price of the P3 (or even an LP-Pan) you could pick up a new Flex-1500.
Michael VE3WMB
From: <[email protected]>
Date: August 28, 2013 12:38:40 AM EDT
To: "Tom" <[email protected]>, "Elecraft" <[email protected]>
Subject: Re: [Elecraft] Will the K2 and KX3 work with the P3?
I'm not sure what you are trying to accomplish here with the KX3, pardon if I
mis-interpret.
Using a P3 requires that two issues be resolved: 1) control and, 2) RF signal
input.
P3 control is via the serial RS232 connection, and can be figured out.
However, the P3 wants to a single RF signal at its IF input. It then goes through a
typical DDC-based SDR approach, including an FFT, to display the spectrum. The P3
works with the 8.215MHz IF output of >the K3 (or many other RF-frequency range, IF
signals). The KX3 does NOT have a single RF/IF output at the proper frequency.
Instead, it has an I/Q output pair at audio frequencies (0Hz-approx 48kHz or >so)
from the internal QSD. You would need to upconvert that I/Q pair back to a single RF
signal in order to feed it to the P3. That's a lot of work, with much simpler
solutions available.
I don't know much about the K2. Looking at the manual, internally, it has an
4.9152MHz IF, but I don't think that's available on a connector, or if the drive
level is buffered and adequate. If so, you could use a >P3 with a K2 I
suppose. The IF would need to be tapped BEFORE the crystal filtering. I do NOT
see an IF output connector, and only one transistor buffer between the mixer and
the crystal filters.
The KX3 I/Q output is set up to feed into a typical computer sound card (stereo,
line-in) and a Softrock SDR-type program, which is easier than trying to jerry-rig
a P3. You can potentially use a CAT interface >with the KX3 to query the
current frequency, for SDR software display. I have NOT one this directly, so I
don't know what SDR software support that.
73, Terry, WB4JFI
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