[time-nuts] Re: Mystery board in a TS2100

[Tom Knox]

Hi;
I believe some of the Symmetricom GPS used 12VDC to power their antennas so that would be logical.
Most 5VDC GPS Antenna LNA's will accept the 12VDC.
Cheers;
Tom Knox
SR Test and Measurement Engineer
Phoenix Research
4870 Meredith Way Apt 102
Boulder, Co 80303
Formerly of:
357 Fox Lane
Superior Co 80027
303-554-0307
actast at hotmail.com

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________________________________
From: Andrew Kalman via time-nuts <time-nuts at lists.febo.com>
Sent: Sunday, June 25, 2023 11:24 AM
To: Discussion of precise time and frequency measurement <time-nuts at lists.febo.com>
Cc: Andrew Kalman <aekalman at gmail.com>
Subject: [time-nuts] Re: Mystery board in a TS2100

perhaps for a bias tee to power the remote antenna, at a different voltage
than the Trimble board?

On Saturday, June 24, 2023, Martin Flynn via time-nuts <
time-nuts at lists.febo.com> wrote:

> Have a TS2100 I am installing a Heol Design GPS board in.
>
> There is an extra board between the Trimble board antenna connector  and
> the antenna cable.
>
> P/N is 172461A, has a pair of orange & white wires going to a three pin
> header on the far side of the main board.
>
> Any ideas?
>
> Martin
>
>
>
>
>
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--
--Andrew

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