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H1 jumper positioning – Ensemble Designs 9400 3G Test Signal and Sync Pulse Generator User Manual

Page 20

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Avenue 7400 and 9400 - Page 20

Model 7400 HD/SD and Model 9400 3G/HD/SD Sync Pulse Generator and Test Signal Generator

H1 Jumper Positioning

When field installing the 7400-GPS Option, move the H1 jumper to the GPS position, as shown in

the photo below, to lock to the GPS reference signal. 7400 and 9400 modules ship from the factory

with the H1 jumper installed in the INT position, locking to the 7400’s internal TCXO (Temperature

Compensated Crystal Oscillator).

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