[RTTY] FSK & 1000MP & MTTY Problem

[Don and Diana Cunningham]

Right, Goetz, and the "standard" is 170 hz shift, tones 2125/2295, not the 
ones listed in the email.
73,
Don, WB5HAK
----- Original Message ----- 
From: "DJ3IW Goetz" <dj3iw at t-online.de>
To: <psussmman at pactor.com>; "NB1B" <nb1b at comcast.net>
Cc: <rtty at contesting.com>
Sent: Tuesday, September 14, 2004 8:13 AM
Subject: Re: [RTTY] FSK & 1000MP & MTTY Problem


> No, no, the FT1000MP has absolutely no problems handling either
> high or low tones in USB or LSB or FSK or AFSK. It's all a matter
> of the right menu settings. NB1B should give LSB "reverse" a try.
>
> 73 de Goetz
> dj3iw at t-online.de
> ----- Original Message -----
> From: <psussmman at pactor.com>
> To: "NB1B" <nb1b at comcast.net>
> Cc: <rtty at contesting.com>
> Sent: Tuesday, September 14, 2004 10:37 AM
> Subject: Re: [RTTY] FSK & 1000MP & MTTY Problem
>
>
>> I am not familiar with the 1000MP, but if you are using a computer to
>> generate the tones and feeding them into the MIC (or external input)
>> jack you are probably operating AFSK and not FSK.
>>
>> FSK is usually internally generated by the rig and involves changing
>> the rig frequency back and forth using a fixed shift. AFSK uses two
>> audio tones which are toggled through SSB which accomplishes the same
>> thing. In the case of AFSK on SSB, the modulating frequency determines
>> the center carrier frequency. Thus it is typical to use a LOWER audio
>> frequency pair when operating AFSK on LSB.. usually 1200Hz and 1400Hz.
>> Operating AFSK with standard USB AUDIO tones of 2195Hz and 2395Hz will
>> probably be "out of range" on the receive detection frequency of your
>> input filters on LSB. Thus, no RX print. Of course, when switching
>> between USB and LSB, MARK has to be reversed.
>>
>> This is covered quite throughly in a back issue of PACTOR NEWS.
>>
>> Need more? Let me know... good luck.
>>
>> Phil Sussman - N8PS
>> Editor - PACTOR NEWS
>>
>> -----------------------------
>>
>> Quoting NB1B <NB1B at comcast.net>:
>>
>> > I've been trying to key my 1000MP using MTTY and FSK.  I can get it to
> work
>> > using USB and Rev, but I can't get it to work using LSB and nor.  Any
>> > suggestions that I could try?
>> >
>> > LSB and USB phone both work FB.  I just built the FSK Interface, and 
>> > the
>> > signal sound fine on a second rcvr, but all I get when trying LSB and 
>> > NOR
>> > are "can't print" replies.
>> >
>> > Its got me stumped.  Just made another RTTY QSO, called several times
> using
>> > LSB and NOR, no reply, then switched to USB and REV and the station 
>> > came
>> > back in one call.  I think I'm missing something.
>> >
>> > Dennis NB1B
>>
>>
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>
>
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