[time-nuts] Datum 9520-1000

Gregory Beat w9gb at icloud.com
Thu Jan 12 13:21:53 EST 2017

Gary -

The Datum 9520 series are Time Code Displays (discontinued).
They have been appearing via government and military surplus via obsolescence sales.

In addition to the 6-digit time display of the 9520 series, this specific model (-1000) includes the 3-digit Day of Year (DoY).
I believe that all of the 9520 series support the Amplitude modulated carrier (IRIG B) timecode.

Datum 9520-240 manual

Datum 9520-647 manual

Since this Datum 9520 is discontinued, ITS (California) provides modern replacements, especially for F-16 fighter aircraft (9520-647 version).

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