[ct-user] FT1000MP ---> comtsr3.exe ----> CT

[Robert Shohet]

> Bob,
>
> I appreciate you taking the time, but did you read my message or just the
> subject?
>
> 73
>
> Bill

Hi Bill,

Yes, I read the message and the subject.

One time I had a problem that allowed one-way communication from the
computer to the radio but not from the radio to the computer AND it worked
with NA but NOT CT.  That happened about two years ago.  It was a problem
with the MAX232CWE chip on the control board.

I have had two other failures with components on the Control Board from
nearby lightning strikes which have resulted in other comm failures.  Not
all failures have the same "symptoms" - therefore my suggestions to you.

You indicated that it was not the radio or the computer but not that you had
swapped identical components and then "retested".  It is easy to miss the
obvious (I know that I have!) therefore my suggestion in case you did not
think of it.

You may have the same problem or a different problem from the few that I
have experienced.  I was suggesting things that you might try to eliminate
some possibilities.

Whatever it is, good luck in finding it.

73

Bob KQ2M


>
>
> On Wed, 13 Feb 2002, Robert Shohet wrote:
>
> > Bill,
> >
> > I have had similar problems before with one-way transmission.  It was
> > usually because the RS232 chip (CAT Port) was blown in the 'MP - the
> > MAX232CWE surface mounted chip on the control board was the culprit.
> >
> > The computer could send commands to the radio just fine, but the radio
could
> > not talk to the computer.
> >
> > Check to see if the CAT light is blinking on the MP at normal speed.  If
it
> > is, you have eliminated the RS232 port as the problem.  If it is
blinking
> > more slowly, then the control board and a different chip is likely
involved.
> >
> > Next I would use a computer port diagnostic program to test each of the
> > computer ports.  I would also hook up another computer to the radio to
> > eliminate the computer as the source of the problem.  Likewise hook up
> > another MP to the same computer to see if the same problem persists.
> > Process of elimination goes a long way to diagnosing the ultimate
problem.
> >
> > 73
> >
> > Bob KQ2M
> >
> > ----- Original Message -----
> > From: Bill Fisher, W4AN <w4an@contesting.com>
> > To: <ct-user@contesting.com>
> > Sent: Tuesday, February 12, 2002 9:21 PM
> > Subject: [ct-user] FT1000MP ---> comtsr3.exe ----> CT
> >
> >
> > >
> > > I have a really good one for you guys....
> > >
> > > 1) Com-3 is hooked to a FT1000MP using COMTSR3.exe -I5.  I can send
> > > commands to the radio fine, but am not receiving commands.
> > >
> > > 2) Same port works fine in NA and TRLog to control same radio.
> > >
> > > 3) This was working the last weekend of November.
> > >
> > > 4) Turning the radio and computer off and back on didn't clear the
> > > problem.  I have seen this behavior before.
> > >
> > > 5) I've tried all software port assignment values with comtsr3.exe
with
> > > same or worse results.
> > >
> > > >From this I deduce...
> > >
> > > 1) The serial port works
> > > 2) The cable works
> > > 3) The radio works
> > > 4) CT or COMTSR3 doesn't.
> > >
> > > Why?
> > >
> > > 73
> > >
> > > Bill Fisher
> > >
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> > >
> > >
> >
>
>
>