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Re: [RTTY] MMTTY difficulties

To: rtty@contesting.com
Subject: Re: [RTTY] MMTTY difficulties
From: ham@n0sq.us
Date: Sat, 09 Feb 2013 09:23:50 -0700 (MST)
List-post: <rtty@contesting.com">mailto:rtty@contesting.com>
Works fine with the Kam on either radio.

Jim Rhodes <jimk0xu@gmail.com> wrote ..
> Since both rigs use same connector, what happens if you switch the rigs
> from interface to Kam?
> 
> Jim Rhodes K0XU
> Sent from my Droid Razr Maxx
> On Feb 9, 2013 9:00 AM, <ham@n0sq.us> wrote:
> 
> > I'm not using a USB to serial port adapter. I'm using a real/legacy serial
> > port.
> >
> > Joe Subich, W4TV <lists@subich.com> wrote ..
> > >
> > > >> Yes. With the diddles turned off I can send traffic to the test
> > > >> radio OK. But with the diddles turned on no traffic can be sent.
> > > >> Also, when I try to send traffic with a macro only part of the text
> > > >> gets sent before the radio dekeys.
> > >
> > > This acts like the USB port is really a USB to serial adapter.
> > > Select Option | Setup MMTTY | MISC tab ... in the box labeled
> > > "Tx Port" click the "USB Port" button.  Select "C: Limiting Speed"
> > > in the "Processing method" box and click "OK.
> > >
> > > 73,
> > >
> > >     ... Joe, W4TV
> > >
> > >
> > > On 2/8/2013 10:04 PM, ham@n0sq.us wrote:
> > > > Kok Chen <chen@mac.com> wrote ..
> > > >>
> > > >> On Feb 8, 2013, at 3:51 PM, ham@n0sq.us wrote:
> > > >>
> > > >>> A real motherboard serial port - not USB
> > > >>
> > > >> So you are probably transmitting in FSK.
> > > >>
> > > >> Did you check the baud rate of your UART and make sure it can be set
> > to 45.45
> > > baud?
> > > >
> > > > Yes.
> > > >
> > > >> Wrong baud rates usually result in some gibberish print, but you said
> > there
> > > is
> > > >> no print at all, correct?
> > > >
> > > > Correct.
> > > >
> > > >> A reversed RTTY sounds different from correct RTTY; wrong baud rate
> > will also
> > > sound
> > > >> distinctly different.  Listen to a real life signal off the air and
> > make sure
> > > the
> > > >> KAM prints properly, and listen again to the signal from your own
> > transmitter
> > > --
> > > >> do they sound pretty much the same?
> > > >
> > > > Kam is working fine.
> > > >
> > > >> When you turn diddles off,  does the receiver hear a single constant
> > tone?
> > > >
> > > > Yes. But, I did have to go into the TS2000 menu and invert the tones.
> > > >
> > > >> With the diddles turned off, do you hear an active RTTY tone pair
> > when you start
> > > >> typing?
> > > >
> > > > Yes. With the diddles turned off I can send traffic to the test radio
> > OK. But
> > > with the diddles turned on no traffic can be sent. Also, when I try to
> > send traffic
> > > with a macro only part of the text gets sent before the radio dekeys.
> > > >
> > > >> Testing with diddles turned off might at least confirm that your
> > typing is getting
> > > >> through to the UART.
> > > >>
> > > >> 73
> > > >> Chen, W7AY
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