Lyle: Yes I do believe the LP-PAN is being overloaded but still, I do hear that
buckshot modulation from WYFR up to about 7010kHz on the K3 so it too is being
affected although not as much.
N4LQ Steve
n...@carolina.rr.com
----- Original Message -----
From: Lyle Johnson
To: Steve Ellington
Cc: Elecraft@mailman.qth.net ; lp-...@yahoogroups.com
Sent: Sunday, June 14, 2009 8:46 PM
Subject: [LP-PAN] Re: [Elecraft] K3 Overload from WYFR
> 1. Is it normal to expect the K3's front end to overload under these
> conditions?
Are you sure the K3 front end is overloading and not the LP-PAN system
(QSD, attached soundcard)? Are you experiencing symptoms that suggest
reh K3 front end is overloading other than the LP-PAN display (which may
be displaying the LP-PAN system, and in particular the soundcard ADC,
overloading)?
You might try adding an attenuator between the K3 IF out and the LP-PAN
IF in and see if the overloading disappears. If so, it might indicate
the LP-PAN system is overloading rather than the K3.
73,
Lyle KK7P
PS - The K3 blocking dynamic range is 20 to 30 dB better than PC-based
SDRs. So I suspect you are seeing a weakness in the PC-based SDR system
rather than the K3, but I've been wrong before! :-)
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