[ICOM] IC-781 CIV converter problem

Jim Hargrave w5ifp at gvtc.com
Mon Sep 14 10:30:42 EDT 2009


Lee,

If you have an RS-232 in line tester, you can determine if the signals are
actually getting to the radio and if the radio is responding. You can also
check the signals with a scope to see if there is two way communications.

There is a small program, "Commander", that is part of the DXLabs suite. It
is a basic radio control module and will work as standalone. I use it for
testing radio control interface units. You can download it at:
http://www.dxlabsuite.com/commander/download.htm.

I would try it and it would help verify that your programs are not at fault.
There is a possibility that the radio has been glitched into neverland and a
reset may be in order.


   * 73's Jim W5IFP *
     w5ifp at gvtc.com



   >-----Original Message-----
   >From: icom-bounces at mailman.qth.net
   >[mailto:icom-bounces at mailman.qth.net]On Behalf Of Lee Mairs (SAG)
   >Sent: Monday, September 14, 2009 2:10 PM
   >To: ICOM Reflector
   >Subject: [ICOM] IC-781 CIV converter problem
   >
   >
   >After working flawlessly for close to eighteen years, My IC-781
   >seems to
   >have developed a flaw.
   >
   >I last used the IC-781 as a WINLINK 2 station on MARS.  Everything
   >worked fine until I left WBGV for a summer in NY.  On my return, the
   >IC-781 no longer responds to frequency change signals from the WL2K
   >software.  I hooked it up to my AC Log program which has a great
   >interface for checking radio interface operations and discovered that
   >while the IC-781 responded to PTT commands and sent PACTOR, it was not
   >setting the frequency as it was supposed to.  I have checked
   >all the CIV
   >assignments, baud rates, and COM port assignements and everything is as
   >it should be.  I even shifter to a different COM port without any joy.
   >
   >The only other thing left (other than the IC-781) is the W1GEE
   >serial to
   >CIV converter that plugs into the REMOTE hole on the IC 781.
   >
   >Any other ideas?
   >
   >73 de Lee
   >KM4YY/8
   >Romney, WBGV
   >----
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