[Milsurplus] Even Worse

[sdaitch at kuw.ibb.gov]

Many digital communications systems have GPS related time bases, I can guess only to eliminate digital jitter in recovering the synch timing from an incoming data signal.

Quite a few years back, I was acquainted with a DS-3 capable digital microwave system, which originally was using LORAN receivers to establish the timing signals for the terminals.  At one particular installation, there was so much interference at 100 kHz that LORAN was useless.  A cesium beam standard was installed for the timing signals and that was in use until the system was deactivated.

This microwave system supported mostly telephone circuits, I was told, and we know what the freuqency response and distortion requirements are for a telco circuit.

73

Sheldon