[TenTec] cw creation

[Williams, Barry]

The 32S-1 did use an audio tone, at the time it was produced Collins was really convinced that SSB was the way to go, so it also goes into the "primarily SSB with CW capability" category too.  Concerning the FCC definition it looks like the designation falls under amplitude modulated double sideband signal, digital, on-off or quantized, no modulation, aural decoding, (A1A)
 
http://www.army.mil/spectrum/library/resources/fcc_emission.txt
 
This would indicate that you start with an AM carrier, and turn it on and off.  On the other hand a single sideband suppressed carrier signal modulated with an on-off (digital) audio tone would be J2A.
 
Thanks,
Barry

________________________________

From: tentec-bounces at contesting.com on behalf of Ken Brown
Sent: Wed 4/27/2005 1:48 AM
To: Discussion of Ten-Tec Equipment
Subject: Re: [TenTec] cw creation



Hi all,

In the discusion about the audio tone input to a SSB mode transmitter as
the method of CW generation we have identified four rigs that do this,
so far:

The Collins 32S-1 (maybe) and KWM-2, the Sunair GSE-924, and the SBE-34.

These all have something in common (with perhaps the Collins 32S-1 being
the exception): They are primarily SSB rigs, that also have CW
capability. None of them was really intended to be a top notch CW rig.

I don't have schematics or manuals for any of them, so I cannot check. I
once had a Heath SB-301 and 401, which I understood to be designed by
engineers who defected from Collins, and were very similar to the
Collins S line. I don't remember whether the SB-401 used a audio tone
input to the balanced modulator to produce CW. Anyone out there happen
to know? And what about the 32S-1? Did it do that, or not?

DE N6KB


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