TB 9-6625-2162-24
IDENTIFICATION AND DESCRIPTION
1. Test Instrument Identification.
This bulletin provides instructions for the
calibration of Radar Test Set, Model AN/UPM-145. TO 33D7-44-225-2 was used as
the prime data source in compiling these instructions. The equipment being calibrated will
be referred to as the TI (test instrument) throughout this bulletin.
a. Model Variations. Variations among models are described in text.
b. Time and Technique. The time required for this calibration is approximately 6
hours, using the microwave technique.
2. Forms, Records, and Reports.
a. Forms, records, and reports required for calibration personnel at all levels are
prescribed by TB 750-25.
b. Adjustments to be reported are designated (R) at the end of the sentence in which
they appear. When adjustments are in tables, the (R) follows the designated adjustment.
Report only those adjustments made and designated with (R).
3. Calibration Description. TI parameters and performance specifications which
pertain to this calibration are listed in table 1.
Test instrument parameters
Performance specifications
Range: 8.4 to 10 GHz
Accuracy: +1.0 MHz
Output power
Range:
0.0 to 80 dBm (cw and pulse)
Accuracy: +1.0 dB
Input power
Range: 0.0 to +30 dBm
Accuracy: +1.0 dB
Target range
Range: 250 to 40,000 yds
Accuracy: 10 yds or 0.5% whichever is greater
(0.061 s = 10 yds)
Target rate
Range: 2000 to +2000 knots
Accuracy: 0.5%
Distortion: < 1.5%, (30% depth, 1 kHz rate)
Pulse characteristics
Pulse width: 0.12 to 5.0 s
Accuracy: 3% or 0.05 s whichever is greater
Rise time and Decay time: ”0.1 s
PRF
Range: 50 to 50 kHz
Accuracy: 1.0 Hz
