The frequency command for the argonaut uses a 4 byte binary number for the
frequency portion of the message. You have to convert the decimal frequency
in hertz to a 4 byte hexadecimal number and then place these 4 bytes after
the *A bytes. The frequency is not in ascii text. Knowledge of hexadecimal
arithmetic is required for this conversion or a good calculator that
converts decimal to hex.
Carl Moreschi N4PY
121 Little Bell Drive
Bell Mountain
Hays, NC 28635
----- Original Message -----
From: "Paul Stroud" <aa4xx@bellsouth.net>
To: <tentec@contesting.com>
Sent: Saturday, December 30, 2006 9:24 PM
Subject: [TenTec] Argonaut V Serial Commands
> I'd appreciate any comments helping me to clarify some issues with
> serial commands for the Argo V.
>
> First off, N4PY's control program works fine with my setup; It's when I
> attempt to issue commands under Teraterm or Hyperterm that I run into
> problems.
> I have the comm protocols set up correctly (1200, N,8, 1). Some
> commands execute correctly (*X, *M, *J, #0, #1, ?E, ?S, ?V), while
> others do not execute.
>
> My main interest is in setting frequency control. If I issue the vfo A
> query command (?A), I receive a cryptic 2 or three letter code, which
> looks like extended ASCII code. I have yet to successfully set the
> rig's frequency with the *A command.
>
> I KNOW the baud rate, parity, and , word length are correctly set,
> because when I issue the DSP restart command, I receive the message
> "RADIOSTART."
>
> Thanks, Paul AA4XX
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