[R-390] R390A alignment question

William A Kulze wak9 at cornell.edu
Tue Jan 12 08:26:57 EST 2010


This has been giving me some ideas. I've got a winradio that I've run the IF into via some attenuation, using the SDR for demodulation. I could probably use the panadapter as an aid to the alignment process. I've heard that some were stagger-tuned and some were 455kHz straight through, but didn't know about the indent in the top of the cans. Once I get done working on this old house and get settled in I hope to do the full-on alignment, including the mechanical on the RF deck. That should be fun! ;)

Bill W2NVD

-----Original Message-----
From: r-390-bounces at mailman.qth.net [mailto:r-390-bounces at mailman.qth.net] On Behalf Of flowertime01 at wmconnect.com
Sent: Monday, January 11, 2010 6:39 PM
To: r-390 at mailman.qth.net
Subject: Re: [R-390] R390A alignment question


This is where you wish you had a good sweep generator. You can set the band 
switch to 16 KHZ. then retune de tune mis tune the IF cans until you get a 
nice 12KHz band pass in the IF strip. Then you can just set the IF gain to 
give you needed overall receiver gain want to also get good short wave and AM 
signal to noise and sound.

Roger AI4NI


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