On Sun, 20 Mar 2016 08:47:01 -0500, you wrote:
>An even better solution would have been to put them on the 'exact' same
>frequency and phase, but the digital electronics and GPS frequency/timing
>systems that could enable that, had not been deployed yet.
Which gets you major nulls, assuming the
Joe:
In that time frame, there were a lot of "simulcast" analog radio, police,
pager,
and TV systems, where different broadcast transmitter locations transmitted
the
same information on the same frequencies. The goal was to have strong
signals
across a large (overlapping) combined coverage area.
HI
The parts would have been set to the offset marked on the can. In the case of
the one in the picture that would have been dead on frequency. The offset is
used
to center up the frequency vs temperature curve. Since they are a TCXO, that
curve
may be as high as a 6th or 8th order curve.
I got my hands on some of these.
https://dl.dropboxusercontent.com/u/19599147/TCXO%20Top.jpg
https://dl.dropboxusercontent.com/u/19599147/TCXO%20Bottom.jpg
A search finds other Microsonics units, but not this one. I can't find
any information on what voltage to feed this. Does anyone know?
I
