RC -
Interesting story. I remember some A2A code practice on 2 meters
years ago. I think the reasons for A2A were rigs designed only for
voice (no key input on Tx, no BFO on Rx) and rigs that weren't stable
enough, esp at VHF/UHF, to support A1A.
73, Martin AA6E
On 4/27/05, Bob Cunnings <cunnings@lectrosonics.com> wrote:
> Hello,
>
> >>Everything we have
> >>been talking about in this forum is A1A,
> >>I believe.
>
> Sounds right. I do remember using what I *think* is real A2A back in the
> Navy. Although an obscure mode, the requirement came up on a NATO cruise
> when the Admiral (Norwegian) decided that a particular kind of battle group
> cw net be activated on UHF, and put it into the comm plan. I remember some
> panic about this on the ship, since our WSC-3 UHF rigs didn't directly
> support A2A. So I spent the night before building a T type audio oscillator
> with junkbox parts that put out a decent audio tone. It was variable so I
> could set the freq as prescribed by the definition for the circuit, but
> don't remember just what it was anymore. It had a cable with which to plug
> it into a mic jack for the AM voice transmitter and a jack for the straight
> key mounted on the radio watch desk. Worked great, COMMO was delighted.
> Having gone this far, and being a ham, it was decided that I would be the op
> for the net, although I was an ET, not an RM (no worry, I had the right
> clearances). All great fun for a while, I got to work the net when it came
> up every evening. The other ops on the net seemed to enjoy it too. I've
> never worked UHF cw since!
>
> RC NW8L
>
>
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--
martin.ewing@gmail.com
http://blog.aa6e.net
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