[GreenKeys] Problems on Proposed Autostart Frequency 10.133

Fri, 07 May 2004 09:16:17 -0400

Hi Gary --

   Sorry, I just saw your note after I sent mine.

   The AN/GRC-106 is typical of military radios of the 1960s.  The indicated frequency is the carrier frequency on CW, and the
suppressed carrier frequency on SSB.  To sent RTTY, AFSK tones were used to modulate the radio in SSB mode.

73,
   -- Eric K3NA

-----Original Message-----
From: [email protected]
[mailto:[email protected]]On Behalf Of Gary Chatters
Sent: 2004 May 6 23:23
To: [email protected]
Subject: Re: [GreenKeys] Problems on Proposed Autostart Frequency 10.133

On Thu, 6 May 2004, Bob Camp wrote:

> Hi
>
> I will confess that i have not personally played with all of the gear
> on your list. The question that would have to be answered with any
> radio that tunes in 1 KHz steps is what are the steps refer to.
>

This is basically the same question that I have.  Could someone who is
familiar with these radios explain the significance of the indicated
frequency, i.e., is it carrier, channel center, etc. and what modulation
scheme is used, i.e., direct FSK, AFSK in an SSB mode, ....???

73,
Gary

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