While we're on the topic of the MarkV and RTTY, has anyone found a
line-level signal that includes both main and sub audio on a backpanel
connector?
73,
Dave, AA6YQ
-----Original Message-----
From: rtty-admin@contesting.com [mailto:rtty-admin@contesting.com] On
Behalf Of wa9als
Sent: Tuesday, July 09, 2002 7:55 PM
To: RTTY Reflector
Subject: Re: [RTTY] FT1000MP MkV & FSK
> There is an internal pull-up resistor on the FSK shift line, so
> grounding and opening the shift pin should produce a shift in the
> carrier frequency (either use a Mic PTT or the MOX button to key the
> rig).
Yes, the SHIFT pin is the FSK input. Based on suggestions from the
RITTY/K6STI manual, I ran my 1000MP and later, the MARK-V with just a
1-K resistor in the line between the COM port FSK output and the RTTY
shift pin (no transistor, optoisolator etc) - worked VY FB.
I don't understand why Chen is suggesting using the Mic PTT or MOX
button instead of the RTTY connector PTT pin or just using rig control
PTT.
Another thing to note with this rig is that the PACKET (AFSK) and RTTY
(FSK) connector PTT pins are in parallel - Depending on how you make
your cables, you can save a PTT line. (You don't need separate PTT
lines for AFSK and FSK). 73
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