Here's another thought.
I built my own interface using a MAX-232 chip and a
couple of buffers. The cable did not work at first
because the TTL levels coming out of or going into (I
don't remember which) the 990 were not reaching the
required TTL low threshold. I fooled with the biasing
on the buffers and fixed the problem. If you are
using a store-bought interface that expects compliant
TTL levels, then you may be having the same problem.
Did you try controlling the radio with one of the
simple CAT programs as I suggested earlier?
73,
Dan
--- "Bob Pack (NX5M)" <nx5m@txcyber.com> wrote:
> Hi Jim,
> Oh yes, I saved everything. I bought the
> cable/level control adapter from a
> source that says the cable has been tested. I doubt
> it is the cable but
> then again you never know.
> As far as the CAT indicator flashing.....nil.
> I changed stop bits on that port as suggested by
> someone but that did not
> work either.
> Dave may be correct in that these radios are old.
> Radio #1 was one of the
> first 5 off the line. I dont know how old #2 is but
> I connected it tonight
> with the same results. I just sent an email to
> Yaesu...perhaps I need some
> sort of upgrade or something.
>
> Bob
>
> ----- Original Message -----
> From: "Jim White, K4OJ" <k4oj@tampabay.rr.com>
> To: "Bob Pack (NX5M)" <nx5m@txcyber.com>
> Cc: <na-user@contesting.com>
> Sent: Wednesday, May 14, 2003 10:22 PM
> Subject: Re: [NA-User] 990/computer interface
>
>
> > Did you save the changes to the config files when
> you closed it?
> >
> > My 990 at 4800 baud works fine - nothing major had
> to be done - it was
> > harder to get it going with CT - I just did same
> stuff as you noted.
> > There is a chance your not outputting info at the
> CAT socket on the back
> > - dunno if a local could mebbe lend you one of
> those line testers with
> > the LEDs that show activity on the circuit - you
> could plug that into
> > the far end to see if the checker's lights flicker
> when you spin the
> > knob, etc...
> >
> > Is the CAT readout on the display of the 990
> flashing?
> >
> > GL - off to Dayton to see my buddy K8CC - no
> matter how much he upsets
> > me at times I still love his program NA!
> >
> > K4OJ
> >
> >
> >
> > Bob Pack (NX5M) wrote:
> > > OK, what am I missing?
> > > I have the proper cable. Have tried known
> working com ports. Changed
> every setting I can think of.
> > > Yes, and I read the manual. I have now pulled
> out a bit more of my hair
> (what has not fallen out naturally).
> > > Radio is a 990 which runs at 4800 baud. XCVR1
> selected and set at 4800
> baud. Using 10.58. As far as I know I have the
> settings right.
> > >
> > > Perhaps I am missing something simple and it
> would not surprise me if
> that were the case. I have been on the "go" so much
> for the past 2 months
> and I am tired. Not thinking clearly is pretty
> certain.
> > >
> > > All I am trying to do at this point is connect 1
> radio.
> > >
> > > So do any of you NA guys have any input on this
> one?
> > >
> > > Thanks!
> > > Bob NX5M
> > > _______________________________________________
> > > NA-User mailing list
> > > NA-User@contesting.com
> > >
> http://lists.contesting.com/mailman/listinfo/na-user
> > >
> >
> >
> >
> >
> >
>
>
> _______________________________________________
> NA-User mailing list
> NA-User@contesting.com
> http://lists.contesting.com/mailman/listinfo/na-user
=====
Dan Zeitlin
Annapolis, Maryland
http://members.tripod.com/~danzee/index.htm
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