[1000mp] Rtty not working on Mark V

Sun, 28 Sep 2003 12:16:11 -0500

I have not yet been able to get the Mark V to key rtty - that is make mark to space transitions.
To divide and conquer the problem I have made a simple connection to the RTTY jack on the back directly.

Using this simple technique, when I get the rig to key tones properly it will be simple to connect it to an interface.
I have several ways to do this but none of them are any good at all if something is wrong with the basic rig.

In RTTY mode, connecting pin 3 (PTT) to ground (4) should key the rig - it does.
Then, touching pin 1 (FSK) to ground should change the carrier from a mark to a space - it does NOT.

Wouldn't this mean that something is wrong with the FSK circuit?

Larry

On Sun, 28 Sep 2003 10:05:00 -0400, John L Merrill wrote:

>Isn't he trying to run FSK not SSTV? MMTTY works in fsk mode. If it's hooked
>up to the rtty connector and you use the circuit recommended in the MMTTY
>help files, it should work.
>
>-----Original Message-----
>From: [email protected]
>[mailto:[email protected]]On Behalf Of
>[email protected]
>Sent: Sunday, September 28, 2003 8:57 AM
>To: [email protected]
>Subject: Re: [1000mp] Rtty not working on Mark V
>
>
>
>
>Larry,  The MMSSTV program generates audio tones for RTTY. It is AFSK (audio
>frequency shift keying) and does not shift the carrier frequency (Frequency
>Shift Keying).  Therefore you must use the MIC input (or the Phone Patch
>input) as the input on the transceiver. With MMSSTV you operate in LSB mode
>and the MMSSTV program generates the tones. Good luck...
>73  Bert  W5ZR
>
>>
>> From: "Larry Alkoff" <[email protected]>
>> Date: 2003/09/27 Sat PM 08:29:34 CDT
>> To: "Yaesu 1000 MP Mailing List" <[email protected]>
>> Subject: [1000mp] Rtty not working on Mark V
>>
>> I am trying to setup MMTTY on a Mark V with FSK using the RTTY jack
>> on the back.
>>
>> With the Mark V in RTTY mode (lsb and rtty lights showing),
>> I can key the Mark V by shorting the PTT pin on the RTTY jack to the
>ground pin
>> on the jack.
>>
>> However, when I short the FSK pin to the ground pin there is no change in
>the tone
>> as heard with Monitor on.
>>
>> This seems wrong to me and I would like to know if the Mark V is operating
>properly.
>>
>> Thanks,
>> Larry Alkoff N2LA
>>
>>
>>
>>
>>
>> Larry Alkoff N2LA - Austin TX
>>
>>
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>
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Larry Alkoff N2LA - Austin TX