[R-390] PD-1 SSB reception, AM effects

Mon, 14 Jan 2002 09:54:04 -0500

With all thus talk about SSB, I remind you that a circuit for a product
detector I built still resides at http://pdq.com/boatanchors/ssb/ as well as
at http://fly.hiwaay.net/~wb7vdn/Download.htm

Also, I recently glommed an old Hammarlund HC-10 box, and have it connected
to my 51J-4, although it will work with my R-390 or -390A as well. It's
input can be quickly adjusted to accept IFs from about 430 kc to 510 kc.

I stabilized the free-running BFO in the HC-10 with some high voltage Zener
diodes (in series), and replaced the 5Y3 with diodes to offload the filament
demand on the power xfmr.

The HC-10 does a pretty good job on SSB. It's kind of fun to have a set with
two IF strips, detectors, AGC lines, filters, limiters, and audio stages.

73, AI2Q, Alex   .-.-.

-----Original Message-----
From: [email protected] [mailto:[email protected]]On
Behalf Of Kenneth Crips
Sent: Sunday, January 13, 2002 3:05 PM
To: [email protected]
Subject: Re: [R-390] PD-1 SSB reception, AM effects

I was just looking at the CV-591 and it looks nothing like my
Eldico SBA-1.  It's a little unclear what the controls are on the
front panel of the CV-591, except for the obvious ones.  The SBA-1
has a notch filter, a noise limiter, and an IF gain, in addition to
the usual SSB, audio, and power controls. I am really curious what
the military nomenclature might be for my unit it has Signal Corp stamps on
it so there must be one. The search continues.

                       Ken

Kenneth A. Crips, Amateur Radio Station W7ITC,
Home of the Chew Crew.  Razz, Beezie, and Morgan.
Cheyenne, Wyoming's Irish Terriers with an attitude.

_________________________________________________________________
Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp.

_______________________________________________
R-390 mailing list
[email protected]
http://mailman.qth.net/mailman/listinfo/r-390