[TMC] FSK (not AFSK) with SBT-1K ???

[Nick England]

Don't worry, I'll get around to the point eventually....
I swapped some email today with K5EF who is restoring an XFK to use with
his GPT-750 for RTTY. That prompted me to haul out my XFK which had been
sitting on the shelf for years. I couldn't remember if I had ever even
checked it out. Removing the covers revealed enough grunge to quickly
convince me I hadn't.

OK. look for the XFK manual. Can't remember where I filed it, so interwebs
to the rescue and a new download from tmchistory.org. OK, I can feed the
XFK with my VOX and drive the PAL-1K portion of the SBT-1K. But hello, this
gadget only covers from 1 to 6.9 mc - with no multiplier output - so how am
I gonna get on 40m? The manual says to use the multiplier on your GPT-10K.
I ain't got no GPT-10K but I do have a manual - I found it right there next
to the XFK manual I couldn't find earlier of course.
And there on page 3-25 is a diagram showing how to hook up your VOX to
drive the XFK to drive *ANOTHER* VOX???  No wait, it must be the same VOX,
just grabbing the 2-4mc VOX oscillator output and injecting the FSKed
signal back in before the VOX multiplier.

Has anyone got a VOX/XFK running? is this what you do?

Looks like I need to replicate a GPT-10K's MCP to switcheroo between
running with the VOX/XFK/VOX, VOX/SBE, or SBG as an exciter source.

Of course I could keep on using AFSK with the SBG or SBE, or I could use
the SBE to multiply the VOX/XFK, but hey, this is the TMC hobby - isn't the
goal to do everything in the most complicated way possible?
Ooh, I think I'll need to use my ISK in there too!

Those people in Mamaroneck were just insane!

Cheers,
Nick England K4NYW
www.navy-radio.com