Model #F10636

12.500 inches

17.375 inches

Between 1.0 kilohertz and 50.0 kilohertz

Frequency meter fr-6/u 1, case meter cy- 1501/u 1, cord cg-409/u 1, frequency data book 1

+100.0/+500.0 megahertz

Internal frequency calibrating crystal

Single

Aa-6.3

Portable instrument capable of measuring any frequency within the range of 100 to 500 mhz w/accuracy of porm 0.001 pct. Uses heterodyne principle for determining frequency of an unknown signal; measurement is accomplished by heterdyning a known signal from the test instrument against the unknown signal. Check points are used to calibrate the instrument throughout its operating range. Used to test the following avionics systems: an/akt-18; an/ara-31; an/arc-54; an/arc-60; an/arc-73; an/arn-3 (); an/crd-4; an/trc-68; an/urr-35c; r-508/arc; r-509/arc, and t-366() /arc

70-01-09

Dept of army publications: tm11-5096 w/changes 1 and 2, oct 55; tm11-6625-312-12p w/change 1, jul 59; tm11-6625-312-35p w/change 2, jul 59; tb11-6625-312-35/1

An/urm-81

Meter,electrical Frequency

81349