[GreenKeys] ST-6's in this day and time (also old enough to remember all those tobacco ads)

[Jeff G]

Sweet! Yeah I have mine working, mostly on ITTY, but I was actually trying
it on the air with all my new-found time. Its not super complicated in
terms of OK here's a rtty signal, tune it for maximum meter deflection and
let er rip, but sometimes a newb just wants to see it done to make sure I'm
doing it right. I did eventually have it copying RTTY once I switched to
LSB, and I have to make a better cable. I also didn't know the FT-857D has
a "digital" mode that includes RTTY (sort of), so once I RTFM I got it
better. If I'm not mistaken, the digital mode has a settable BFO offset
which may let me move the signal up to the appropriate freq for the ST-6.

Still haven't transmitted though - once I make the cable I'll try that side
of things. My antenna sucks so I don't even think I'm making it off the
block.

Jeff KC3GJX

On Thu, Mar 26, 2020 at 5:17 PM Ethan Blanton <elb at kb8ojh.net> wrote:

> Sorry, I'm woefully behind on Greenkeys; I read it sporadically, but
> I'm teaching at a University and the semester is always rough -- and
> we just went to online, which has caused a further bobble in my
> schedule.  Nick pinged me, though, so I came back to find this.  :-)
>
> Jeff G wrote:
> > FYI, there is actually ONE Hal ST-6 video on Youtube, and it happens to
> > talk about repairing one, going into details about board placement and
> what
> > not. Its actually a really good vid, its just a shame they didn't show
> much
> > of the actual usage of it, other than it actually working.
> >
> > https://www.youtube.com/watch?v=7c1PTIV3BxI
>
> That's me!  I'm glad you enjoyed it; I have plans for a couple more
> videos with the ST-6, one figuring out what's wrong with the motor
> control circuit (if anything) and one comparing its operation and
> performance with and without the limiter engaged.  However, I have too
> many projects on the shelf!  I haven't been back to the ST-6 for about
> a year or so.
>
> I could also do a video of one on the air, I do have a video decoding
> RTTY off the air using a 5000.
>
> The trouble with using my video to figure out where the boards should
> be placed (as a previous poster asked about) is that they _are_ kits;
> there's no guarantee that my chassis is quite exactly what another is.
> You'd need to at _least_ verify the card edge orientation and position
> with a multimeter and the original schematic (which is what I did to
> make sure my chassis, which ahd been marked by some previous owner,
> was marked correctly).
>
> Ethan
>
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