[RTTY] Need Help

[Joe Subich, W4TV]

Dick,

First, are you using RTTY (FSK) or LSB/USB/PKT (AFSK) with the
Mark V?

Are you using a "real" serial port or a USB to serial converter?

Are you using hardware PTT switching or software control (CAT) for
PTT?

Assuming you are using FSK, have you connected a breakout box
("LED" box) between the computer serial port and the RB+ to
confirm that the RTS/DTR lines are switching properly for PTT?
If you open the RB+ you should be able to see the RTS/DTR LEDs
light in PTT?

Have you disconnected the "RTTY" cable between RB+ and MK V
and connected an Ohm meter to  pins 3/4 of the 4-pin DIN plug
to confirm that they show "closed" when MMTTY/N1MM is in
transmit?  If you do not connect PTT to the RTTY jack and use
AFSK, have you connected an Ohm meter between pins 5 and 6 of
the "Foster" (mic plug) to confirm that they are "closed" when
N1MM/MMTTY is in transmit?

Simply put, you should see +12V on the RTS/DTR lines when MMTTY
is in transmit, the relay in RB+ should close and you should
see a short (contact closure) between pins 5/6 of the mic plug
or pins 3/4 or the RTTY plug depending on how you have connected
the  MK V.

Since the RB+ relay is apparently not closing when N1MM/MMTTY
switches to transmit, you need to determine if you are getting
a PTT signal on the serial port (RTS/DTR lines).


73,

    ... Joe, W4TV

On 8/25/2010 10:39 AM, Dick White wrote:
>
> My computer is not keying the radio. I set up for the SARTG Friday morning
> and made 2 Q's and all worked fine. Big thunder and lightning storm Friday
> afternoon around 2000z. Opened N1MM to start contest at 0000z and could not
> key the radio. I did make 74 Q's in SARTG by putting the RigBlaster in VOX,
> manually keying the rig, send macro, unkey rig. It was a chore.
>
> Set up used last 5 years: YAESU Mark-5 Field  -  RigBlaster Plus and
> computer with plenty of memory and HD.
>
> N1MM v.10.8.1 MMTTY v.1.66 G and MixW v. 2.19.   All 3 do not work.
>
> Checked all cables to make sure connected and attached correctly. All ok.
>
> Checked volume settings and nothing changed from original set up.
>
> Checked radio and it is set up properly.
>
> Called West Mountain Radio to find out how to check the RigBlaster. Checked
> as instructed and it is ok. Asked about putting RB in VOX and able to use.
> They said the RB was designed to do that and the circuit was not the same as
> when the RB is in AUTO.
>
> Everything was working fine Friday morning but not after the thunder storm.
> Something got changed or affected and I have not been able to find it. The
> rig is protected with a UPS. Computer with two very fast surge protectors
> and I have a full house surge protector. I suspect something happened to my
> sound card ??  Any ideas of what I can do next or where to look ?
>
> Dick  KS0M
>
> Richard C. "Dick" White
> Fulton, MO. 65251  U.S.A.
> whiter26 at sbcglobal.net
>
> Live simply. Love generously. Care deeply.
> Speak kindly. Leave the rest to GOD.
>
> Amateur Radio Station - KS0M
>
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