[R-390] Alignment Problem on R390A?

Wed, 8 May 2002 09:19:51 -0400

One more word: alignment is one of the best ways to evaluate and
troubleshoot the set. It'll show you where any problems are in a methodical
rear-to-front (audio to RF) manner.

Vy 73, AI2Q, Alex in Kennebunk, Maine
Motorola R-390A, Collins R-390, Stewart-Warner R-392, Collins
51J-4/Hammarlund HC-10 owner   .-.-.

-----Original Message-----
From: [email protected] [mailto:[email protected]]On
Behalf Of Tom M.
Sent: Wednesday, May 08, 2002 7:57 AM
To: Gary Carter; R-390
Subject: Re: [R-390] Alignment Problem on R390A?

Gary:

I'll take the coward's way out and recommend a complete alignment for your
radio.

I've never received one of these that did not need alignment.

Make a by-the-book pass through it and I'd wager that your problem goes
away.

Cheers

Tom N5OFF

--- Gary Carter <[email protected]> wrote:
> 		Hello All!
>
> 	I just recently acquired an R390A produced by Capehart. In trying out the
> receiver I've noticed that when I start tuning towards a strong AM
> signal I start detecting the station's audio anywhere from 8 to 16 kHz
> away from it's center frequency (using either the 4 or 8 kHz filters).
> When I'm almost at the center frequeny of the station the receiver
> sounds like it suddenly "captures" the signal to it's full strength,
> almost like tuning in an FM signal. Is this due to misalignment or
> errors in tracking?
>   	I'm new to this reflector, and although I've been in ham radio for
> twenty eight years, I've been one of those dreaded "appliance operators"
> that you've heard so much about. Even though I've been known to
> successfuly recap a radio by the "cap by numbers" method, I am trying to
> learn how to work on and understand the workings of this equipment
> correctly. Be patient with me. I am going to ask a lot of simple
> "electronics 101" questions from time to time, and I  know how
> frustrating that can be for some engineering types out there. Just
> remember, we all have to start somewhere, and I'm willing to learn if
> you're willing to teach.
>
> 		73,
>
> 	Gary Carter - WA4IAM
>
>
> _______________________________________________
> R-390 mailing list
> [email protected]
> http://mailman.qth.net/mailman/listinfo/r-390

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