I wrote on the softrock40 list:
Re: [softrock40] Softrock kit for new Elecraft K3
> Has anyone configured a kit for the new Elecraft K3 which will have a
> wideband buffered IF output of 8.215 MHz? This promises to be a very
> popular rig and I am sure many will want to use a Softrock on the IF
> output as a panadapter.
From: Lyle KK7P (Elecraft)
Please use injection on the low side of 8.215 kHz - say 8.200 or lower - to
keep reverse energy down. Or use harmonic sampling, or...
73,
Lyle KK7P
From KB9YIG (Softrock designer):
Re: [softrock40] Softrock kit for new Elecraft K3
Hi Bill,
I have a SoftRock Lite kit for use with the K3 IF signal. The kit provides a
center frequency of about 8.191 kHz and when used with a soundcard that can
sample at 96 kHz gives a view of signals in the 8.143 MHz to 8.239 MHz
range. Kit cost is $11 and a kit may be ordered via PayPal to
raparks at ctcisp.com The price includes US/Canada mailing expenses. For
DX locations I need to ask for an additional $1 to help with the mailing cost.
An open question is what signal and Z level are available at the K3
IF output?
There may need to be some interface issues to resolve with the above
SoftRock Lite kit for use with the K3. (de W4ZV - Elecraft must answer this)
Thanks and 73,
Tony KB9YIG
I also learned from that list that the K3's buffered
IF output at 8.215 MHz is ~200 kHz wide (before it goes
through the roofing filter). Clearly Elecraft and KB9YIG
need to communicate directly on this issue!
73, Bill W4ZV
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