ok, nothing worked. I checked the VCO and the voltage
is always at 5.2V also when I change the value.
I think there's maybe something wrong with the
eprom programming. When I create a HEX or a BIN file
with the same datas, they look different in my
programmer software (hex = intel hex).
As I said before, I use 27C64 eproms, so I think I have
to switch of switch 8 of the DIP-switch. In my units
there is the T800-07 memory board installed for switching
the cannels via the TS0089 panel. Is there something I
have to look for with this board ?
73
Bernd
DM5BM
--- In Repeater-Builder@yahoogroups.com, "Bernd Maestling"
<[EMAIL PROTECTED]> wrote:
>
> Thanks Ed, I'll try later.
>
> I can also program with -20 modules the right channels.
> The software is giving up a warning about frequencies
> but it'll generate the files anyway.
>
> 73
> Bernd
>
> --- In Repeater-Builder@yahoogroups.com, wa6rqd <[EMAIL PROTECTED]>
wrote:
> >
> > Bernd Maestling wrote:
> > > Hello,
> > > I hope somebody can help my cause I'm getting nuts
> > > with programming a Tait series I repeater.
> > >
> > > I programmed a few dozend times the 27C64 eproms but
> > > nothing works. The software I use is PGM800 for DOS
> > > and also v4.x for Windows. My programmer can program
> > > BIN files ok, cause I already programmed NOKIA/Kyodo
> > > BSR450 repeaters in the past.
> > >
> > > The setup of my TAIT is:
> > > RX: T855-20
> > > TX: T856-20
> > > speaker and channel switch TS0089 (but I use the DIP
> > > switches in the modules by disconnecting the cables)
> > >
> > > I want to programm the modules for somewere between
> > > 431 and 439 MHz. As I saw, the -20 and -15 modules
> > > are mostly identical, also are the produced files.
> > >
> > > I hope someone can help me.
> > >
> > > 73
> > > Bernd
> > > DM5BM
> > >
> >
> > Bernd,
> >
> > The T855-20 and T856-20 are designed for 440 to 480 MHz. To use them
> > below 440 you will need to tell PGM800 you have a T855-10 and T856-10
> > (400-440). I would suggest saving the file in HEX (not bin) format to
> > allow you to compare the saved file with what is being loaded into
your
> > PROM burner's RAM.
> >
> >
> > Once you have programed the PROMs, you will need to adjust the VCO
trim
> > capacitor down enough to get the PLL to lock (monitor the top end
of L1
> > on the VCO boards with a voltmeter and adjust for something around 9
> > volts). If you have not re-adjusted the VCOs, nothing will work when
> you
> > are moving frequencies as much as you are trying to do.
> >
> >
> > Ed Yoho
> > WA6RQD
> >
>
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