[RTTY] STRANGE SET UP WITH NEW RADIO

[Joe Subich, W4TV]

*READ ALL OF YOUR FTdx3000 OPERATING MANUAL* and read it again until you
understand it.

If you are using DATA (PKT) mode, the center frequency is set by menu
070 "Other shift (SSB)"  which defaults to 1000 Hz.  To use with the
default 2125/2295 Hz Mark/Space in MMTTY, you must set menu 70 to 2210
(the mid-point between MMTTY's Mark/Space).

You would probably have better results using "Low tones" in MMTTY
(1275/1445 Hz) and setting menu 070 to 1360.

The third option is to use 915/1085 Mark/Space (MMTTY 915 Hz Mark) with
the default settings of Menu 070.

*AGAIN, READ ALL OF YOUR FTdx3000 OPERATING MANUAL* and read it again
until you understand it.


73,

    ... Joe, W4TV


On 10/24/2017 4:38 PM, Richard White wrote:
> About 6 weeks ago my old YAESU MARK-5 FIELD died and I replaced it with a
> new YAESU FT-3000. Set up for CW was easy and it works ok. But, I have a
> strange set up for RTTY using MMTTY that I don't understand nor what to do
> about it, if anything. FT-300 with a Signalink-USB interface. (the Signalink
> worked ok with the MARK-5 for the past 8 years). I have the new cable and
> jumper module from Signalink for the FT-3000.
> 
>   
> 
> Problem: I set up MMTTY with MARK = 2125Hz,  Shift = 170 Hz, TAP = 72 Hz,
> AV= 70 Hz. Mode = DATA-LSB . Signalink informed me this had to be the radio
> mode. With this set up when I open MMTTY there is nothing in the SPECTRUM
> Window. Just the 2 vertical lines in one window and fussy stuff in the other
> two.  The band width has to be 2000 Hz or more to get the Spectrum window to
> show something. If I put the curser just to the left of the left vertical
> line I can bring the signal in view and center the signal traces  it in the
> vertical lines. However the MARK is now between 908 to 966 Hz. But now I can
> reduce the band width to any width I prefer.
> 
> I have been working a lot of calls with this set up and did the JARTS RTTY
> contest this past week end with no problems. I don't understand why the MARK
> Hz changes or if it is a problem. I never noticed this with the old MARK-5
> when I used it.
> 
> Comments/advice appreciated.
> 
> Dick   KS0M
> 
>   
> 
> Richard C. "Dick" White
> 
> Fulton, MO 65251 U.S.A
> 
> Amateur Radio Station  KS0M
> 
>   
> 
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