[time-nuts] Trimble Thunderbolt question, splitting its output.
Chris Wilson
chris at chriswilson.tv
Sat Mar 28 09:04:59 UTC 2015
Hello,
on 28/03/2015 09:04 you wrote:
> Chris wrote:
>>can I T off the T/Thunderbolt 10MHz feed to
>>this board and take a second sine wave output direct from the
>>Thunderbolt, to drive a transceiver GPS disciplined 10 MHz frequency
>>standard input as well as having it feed the divider baord
> The input impedance of the divider board is nominally 50 ohms (closer
> to 45 ohms, with 1Vrms drive from the TBolt). If the transceiver has
> a high-impedance input (1k ohm or higher), you should be able to get
> by with a simple "T" connection. Run coax from the TBolt to a BNC
> "T" at the transceiver input, and another coax from the "T" to the
> divider board. This will work best if this second piece of coax is
> short (i.e., the divider board and the transceiver are physically
> close to each other).
> If the transceiver has a nominally 50 ohm input or the coax run
> between the transceiver and the divider board would be long, you
> should use a 50 ohm power splitter. Put the splitter close to the
> TBolt with a short run of coax, then run whatever lengths of coax are
> necessary from the outputs of the splitter to the divider board and
> the transceiver.
> Best regards,
> Charles
That answers my question perfectly Charles, many thanks for the
detailed reply, much appreciated.
--
Best Regards,
Chris Wilson.
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