[Milsurplus] AN/URM-17 accessories

[Glen Zook]

I am looking for information on the DT-56URM-17 RF Probe and the CU-227/URM-17 Impedance Matching Network used with the AN/URM-17 Radio Test Set.  The AN/URM-17 is basically a receiver that tunes from 375 MHz to 1000 MHz that has a well calibrated "S" meter.

I do have the manual on an AN/URM-17 (NAVSHIPS 91388).  However, the only information on the RF Probe is on the main schematic and it is just shown as a capacitor between a Type "N" female and Type "N" male.  No value of the capacitor is given.

The information on the Matching Network is also scarce.  The schematic shows a "T" attenuator with no resistor values given.

Basically, I have the entire unit, including the calibrated antenna, except for the carrying cases and the antenna tripod and the RF Probe and Matching Network.

The unit is fully functional without the RF Probe and Matching Network.  However, it would be "nice" to have that information as well.
 
Glen, K9STH


Website:  http://k9sth.com