[1000mp] Rtty not working on Mark V

Sun, 28 Sep 2003 13:22:11 +0000

Larry is asking about FSK for MMTTY - not AFSK for MMSSTV.

My 1000MP works fine with MMTTY FSK using the FSK pin on the 100MP's RTTY jack using a simple FSK circuit driven by my computers COM port similiar to what's shown on AA5AU's pages:

http://www.aa5au.com/rtty_start7.html

73 Phil NA4M

_ _... ..._ _   _.. .    _. ._ ...._ _ _
Phil Duff  NA4M    Ann Duff    Georgetown, TX. 

> ------------Original Message-------------
> From: <[email protected]>
> To: [email protected]
> Date: Sun, Sep-28-2003 1:01 PM
> 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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