Dear Joe: My ISP had a serious problem with the news server and only this
afternoon have I been able to get to this group.

While my ISP's server was down, I was able to read a slightly garbled
copy of your helpful message using Yahoo. Unfortunately, E-mail addresses
were smeared. So, I did a Google search for a "Gary" who was associated
with RACAL, and eventually had success.

I asked Gary about the 488 codes and, a few days latter, he sent me a
well formatted list. I intend to exercise the codes as soon as I get a
break and then get back with Gary to confirm/expand on the codes.

This is a long way to say thank you to Joe WA9LAE and to Gary.

I also thank Dan Rae who noted that some of the manuals contain the
information.

73, Mac N8TT

--
J. Mc Laughlin; Michigan U.S.A.
Home:
"Joe" wrote in message
oups.com...
Ask Gary, , he's the 6790 guru. A former Racal
service tech.
GL, Joe-WA9LAE.



J. Mc Laughlin wrote:
I am looking for the complete set of codes that are sent to a Racal
RA6790/GM receiver via its stock GPIB (IEEE-488, HPIB) port.
$02F12.12345
changes the frequency of number 2 receiver (set with dip switch next to
the
GPIB socket on the receiver) to 12.12345 MHz.

The manual found on the Internet discusses the use of a serial port.

Google pointed to a site where a 232 to 488 converter was used to
control an earlier model of receiver that contains a GPIB module. Some
of
those codes do work with the RA6790/GM.

Pointers to the information will be appreciated.

73, Mac N8TT
--
J. Mc Laughlin; Michigan U.S.A.
Home: