[Elecraft] Info on K3 "IF OUT"

[Edward R. Cole]

I am using the LP-Pan on the K3 IF and its clock runs at 
8.215x4.  Actually, the later models of the LP Pan run at 
(8.215-.006)x4 = 8.209x4 = 32.836 MHz.  LP-Pan set up for radios 
other than the K3 have a different LO to suit those radio's IF.

Minimum sampling rate needs to be >2x the IF frequency.

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Message: 4
Date: Sat, 23 Apr 2011 13:27:15 -0400
From: "Igor Kosvin" <k.igor at comcast.net>
Subject: Re: [Elecraft] Info on K3 "IF OUT"
To: <tpcj1r03 at crocker.com>,     <n1al at sonic.net>
Cc: elecraft at mailman.qth.net
Message-ID: <006e01cc01db$b2a38bf0$17eaa3d0$@igor at comcast.net>
Content-Type: text/plain;       charset="us-ascii"

John,
Something is confusing in your post. If you want to sample IF directly, you
would need ADC with sampling rate of at least 18MHz or so. (more than twice
the 8.215MHz IF of K3). Your 192kHz doesn't make sense. P3 digitizing at 60
MHz because they want to allow using it with other rigs with IF up to 21 MHz
or so.
Maybe you can explain your setup in more detail.
73,
Igor, N1YX




73, Ed - KL7UW, WD2XSH/45
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