[time-nuts] Trimble Thunderbolt question, splitting its output.

David C. Partridge david.partridge at perdrix.co.uk
Sat Mar 28 07:18:44 EDT 2015


>The input impedance of the divider board is nominally 50 ohms (closer to 45 ohms, with 1Vrms drive

??? How do you get to that 45 ohm figure.  The input has a pair of 100R in parallel, so I can't see how it can be 45R input impedance.  Did you derive that figure based on observing the amplitude change of the Tbolt when connected to the board, and when disconnected?  If so I'm be more likely to suspect the the T output impedance isn't 50R.

Enquiring mind wishes to know :)


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