[GreenKeys] More where that one came from

[hsvham]

Thanks for heads-up on the ST-8000A units available on ePay...I just placed an order for one of them, that will replace the ST-6000 currently hooked up between my Yaesu 990 and my Model 15.

Steve K4KM


--- On Wed, 6/3/09, Herb Graeber <hhg at suddenlink.net> wrote:

> From: Herb Graeber <hhg at suddenlink.net>
> Subject: Re: [GreenKeys] More where that one came from
> To: "Jeffrey Angus" <jangus at socal.rr.com>, larryradio at att.net, "Greenkeys" <greenkeys at mailman.qth.net>, "Bill Henry" <ghenry at halcomm.com>
> Date: Wednesday, June 3, 2009, 3:27 PM
> Thanks Bill!  I just printed
> your message and placed it
> in the Operator's Manual binder.  I'll make these
> changes
> to the "used" ST-8000A this weekend and see how things
> work.  Incidentally, I am using the RS-232 out to
> drive the
> DSRTTY and using the MIL-188 out to drive the Model
> 28 through the old RS2100.  Also, just using TXD from
> DSRTTY to key FSK through a simple open collector
> NPN.  Thanks again.  73...Herb K5HG
> 
> ----- Original Message ----- 
> From: "Bill Henry" <ghenry at halcomm.com>
> To: "Herb Graeber" <hhg at suddenlink.net>;
> "Jeffrey Angus" 
> <jangus at socal.rr.com>;
> <larryradio at att.net>;
> "Greenkeys" 
> <greenkeys at mailman.qth.net>
> Sent: Wednesday, June 03, 2009 3:12 PM
> Subject: Re: [GreenKeys] More where that one came from
> 
> 
> > Herb - and all,
> >
> > The AMH times were dictated by USAF spec. to match
> those used in the 
> > Frederick 1280A/M modem.  It has been a long time
> since I designed the 
> > ST-8000A (1990) - but - circuit pot R56 (on the lower
> modem board) is the 
> > calibration adjustment for AMH delay.  Mark the
> factory setting of R56 
> > before changing it if you want to be able to get back
> to where you 
> > started.  Fixed resistor R8 (68.1K) sets the
> delay for the smallest 
> > increment to 1.0 second (SW2-8=ON).  Setting all
> sections of SW2 to ON 
> > should reduce the time to 1/2 second or maybe
> less.  Also, paralleling 
> > resistor R9 (274K) with a lower value will reduce the
> time for all 
> > settings of SW2 (try maybe 24K).
> >
> > Good luck, and have fun.
> >
> > Bill Henry
> >
> > At 02:45 PM 6/3/2009 -0500, Herb Graeber wrote:
> >>Thanks Jeffrey.  I've got two of those
> rascals.  One is
> >>NIB and the other was used.  I modified the
> used one
> >>like Jack (K0TTY) did except that I installed a
> Rat
> >>Shack 8 conductor phono jack on standoffs over the
> >>ventilation holes in the back left top corner.and
> ran the
> >>cables through the hole where the diversity female
> was.
> >>
> >>I bought DSRTTY and am happy with the ST-8000A
> with
> >>the exception of the Automatic Mark Hold (AMH) and
> the
> >>time delay for it to change to the Mark-hold
> state.  The AMH
> >>setting is internal and if the audio level changes
> any than the
> >>ST-8000A starts printing garbage.  AND, why
> only a minium
> >>of 1 second delay?  Thats 4 or 5 garbage
> characters when-
> >>ever you get a LOS.  Sure would like to see a
> level control
> >>and a threshold control on the front panel. 
> Oh well...
> >>
> >>73...Herb K5HG
> >>
> >>
> >>----- Original Message -----
> >>From: "Jeffrey Angus" <jangus at socal.rr.com>
> >>To: "Herb Graeber" <hhg at suddenlink.net>;
> <larryradio at att.net>;
> "Greenkeys"
> >><greenkeys at mailman.qth.net>
> >>Sent: Wednesday, June 03, 2009 2:25 PM
> >>Subject: Re: [GreenKeys] More where that one came
> from
> >>
> >>
> >> >
> >> >> Are these new or "refurbished"?  Did
> it come with
> >> >> the manual and the amphenol male
> connectors?
> >> >> I got one sealed, new in the box, like
> the government
> >> >> bought it with all the accessories and
> manual but I
> >> >> paid more than $79.00.  :>(
> >> >
> >> > I can't speak for the others on sale now, but
> the one I bought
> >> > came reboxed and looked like it was just
> pulled out of service.
> >> > IEEE power cord, and the data and audio
> connetors with
> >> > the cables cut off at about 12"
> >> >
> >> > All things considered, with what they cost
> new, it was an
> >> > exceptionally good deal.
> >> >
> >> > Jeff-1.0
> >> > wa6fwi
> >> >
> >> >
> >>
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> 
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