[Lowfer] WG2XCT beacon. QRSS30 on 470.20 KHz
Douglas D. Williams
kb4oer at gmail.com
Wed Feb 20 16:38:08 EST 2013
My R75 is quite stable once it warms up. It, even used with Todd's
upconverter, can hold frequency well enough for QRSS120. I have it
calibrated well enough to be sure it is within 0.5 Hz once it warms up,
which takes about an hour for best stability.
But yes, I would like to link it to a GPS standard, just so I don't have to
deal with "warmup drift", etc. Let us know when your board is done, as I
plan to have a GPS standard by next October, Good Lord willing.
73, Doug KB4OER
On Wed, Feb 20, 2013 at 4:25 PM, Pat Bunn <pbunn at patbunn.com> wrote:
> Thanks Doug
>
> We need to both get Jays disciplining mod done . I get tired of messing
> with calibration my R75 is about 14 Hz low . It is fairly stable when
> warm though. I'd like yo get it so it is stable and on frequency all the
> time. I thought I'd finish the board before I open it up. The board gives a
> 30 MHz output but not a nice clean sine wave - instead a series of three
> waves of different amplitudes which may be what is expected. Filtering
> would clean it right up. That may be OK but I want to work on it a little
> more.
>
>
> Pat
> N4LTA
>
> "Douglas D. Williams" <kb4oer at gmail.com> wrote:
>
> >Pat your signal is coming in "dogbones" in TN. Drift is mine, as I just
> >turned the R-75 on. I really should just leave it on all the time, from
> >October until March.
> >
> >I'll post another screenshot when I get the full call.
> >
> >73, Doug KB4OER
> >
> >On Wed, Feb 20, 2013 at 2:34 PM, Pat Bunn <pbunn at patbunn.com> wrote:
> >
> >> Running qrss30 beacon until tomorrow morning on 470.2 KHz testing
> >> transmitter FETs
> >>
> >> Pat
> >> WG2XCT
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