U.S. Naval Observatory Earth Orientation Department

The Washington Correlator

[USNO Mark IIIA Correlator]
The Washington Correlator Tape Drives

A close-up view of the six instrumentation tape drives of the Washington Correlator. The magnetic tapes containing the recorded radio signals from distant quasars are played back on these units. The output is then sent to the Mark IIIA Processor where the signals are compared or "correlated."

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Last modified: Fri Feb 20 16:48:35 EST 1998 Approved by EO Dept. Head, USNO