[Elecraft] What crystal filter do you use the most?

Edward R Cole kl7uw at acsalaska.net
Wed Sep 30 11:23:39 EDT 2015


Doug,

Not sure what the first paragraph has to do with filter selection on the K3?

Using the 1st IF output one bypasses all filters and the DSP 2nd IF 
completely.  I know because I do that for both main and sub-receiver 
on my K3.  I use two LP-Pan (one for each IF).

You do not define "Full" in spectrum.  I suspect you mean you use the 
full bandwidth of your soundcard or the funcube.  This is 192-KHz for 
the best soundcards that I am aware of.  190-KHz is full bandwidth 
for my SDR-IQ.  Do not know what is possible with a fun-cube.

Full spectrum for my station is 100-KHz to 26-GHz; only display that 
will cover that for me is my old surplus HP141T spectrum analyzer - 
max scan spectrum is 200-MHz wide with the mw plug-in starting at fo =1500-MHz.

73, Ed - KL7UW

From: Doug Ellmore <doug at ellmore.net>
To: elecraft at mailman.qth.net
Subject: Re: [Elecraft] What crystal filter do you use the most?
Message-ID:
         <CANAn7wz8JAdhAuH0ed0T9D_Zsobu3dob-FWyWao8F5HjC8PsOw at mail.gmail.com>
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On my K3 I have an LP-Pan connected to my IF out on the main receiver and a
FunCube Pro on the subreceiver IF out.  The LP-Pan is setup to a Steinberg
USB UR22 sound card.  Therefore, I have two panadapters, one through Win4K3
for the main receiver, the second using NAP3 v5 to the funcube pro.

This give full spectrum display.  I say this, because my normal operating
==snip

73, Ed - KL7UW
http://www.kl7uw.com
     "Kits made by KL7UW"
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