AN/URM-23

Overview

Summation Bridges AN/URM-23 and AN/URM-24 are portable, field-type, direct-reading watt meters used in measuring rf power output of radio, radar, and navigation equipments.

Relationship to Similar Equipment

Summation Bridges AN/URM-19 through -24 are similar except for power requirements and frequency ranges.

Technical Description

Power Requirements

115 v ±10%, 50 to 1,600 cy, 1 phase ac

Frequency Range

1,000 to 4,000 mc (AN/URM-23);

4,000 to 10,000 mc (AN/URM-24)

Power Input Range

5 mw to 5 w

Input Impedance

50 ohms

Voltage Standing Wave Ratio

1:3

Temperature Range

-40° C to +55° C

Accuracy

±15% of pwr being measured

Major Units

1 - AN/URM-23 16" x 10" x 13"

1 - AN/URM-24 16" x 10" x 13"

1 - TS-730/URM 13 5/8" x 10 5/8" x 13"

Tubes, Crystals, Transistors

• 1 - 5Y3GT
• 1 - 6AU6
• 1 - 6SA7G
• 2 - 5651

Reference Data and Literature

TO 16-30URM23-1, -2, -3, 4;

TO 16-30URM24-1, -2, -3, -4

Spec &/or Dwg

Exhibit WLENG 1081A