CC'ed to the MMTTY Reflector.
The right display shows that the RTTY audio tone sigs are not set to the
same freq as the MMTTY passband. Maybe your 706 was not in RTTY mode, or
you had shifted the freq somehow. You can control the passband in MMTTY as
well as the passband of the 706, and they are not matched here.
Also, I run the audio level adjustments to get a higher audio level on the
MMTTY screen - about 50 - 60 % the height of the panel.
Try the TPF (Twin Peaks Filter) in the RTTY mode on the 756 - works great
for me.
NOTE for our MMTTY friends - a special(?) version of MMTTY is being used
here as the interface to Writelog, a contesting/logging Windows program.
Jerry W4UK
At 10:55 PM 2/14/2002 -0500, WA9ALS - John wrote:
>Thanks to Jerry, Anders, and Dave for their suggestions - easy to
>implement!
>
>I have a Dell computer with integrated sound, but I ordered it with a
>Soundblaster Live Value card (just in case...). I've been using one
>instance of MMTTY using the Soundblaster card. Tonight I rebooted and
>entered setup to turn on the integrated sound. Double-clicking on the
>speaker icon in the sys tray revealed 2 soundcard choices to control, so
>I hoped that Windows was recognizing both sound systems.
>
>Next I opened 2 instances of MMTTY - you don't have to have 2 separate
>instances of MMTTY folders/installed - just use your usual shortcut to
>open 2 instances of the same program. Then in Options, MISC, set
>different device IDs for the 2 programs - I used 0 for the first
>instance and 1 for the second. Plugged in the audio to the appropriate
>(separate) inputs, and there it was - working FB! MANY THANKS!
>
>Now an interesting observation - If you look at my screenshot at
>http://wa9als.mystarband.net/wlmmttyx2.gif, you will note different
>spectrums. Both radios are set to the exact same freq - 7.082576 - and
>both are using 350 Hz filters, yet the spectrums are quite different.
>BTW, AFC is OFF on both, as is RIT.
>
>The PROII (left) is using its all-DSP filters, an the IC-706MKIIG
>(right) is using it's FL-232 350 Hz filter. UNFORTUNATELY, I can't find
>any RTTY signals to try out tonight!
>
>Any ideas about the (noise) spectrum differences?
>
>If this SO2R (single computer) MMTTYx2 information is not already
>available on Don's or Jay's web sites, I'd like to document the setup on
>mine. Don? Jay? Any comments welcomed! 73 - John
>
>--
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