TB 9-6625-2237-24
IDENTIFICATION AND DESCRIPTION
1. Test Instrument Identification.
This bulletin provides instructions for the
calibration of Radio Test Set TS-24 (B). TO 33K3-4-1961 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. None.
b. Time and Technique. The time required for this calibration is approximately 2
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 adjustments.
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.
Table 1. Calibration Description
Test instrument parameters
Performance specifications
Dc module battery:
Range: 10.8 V dc
Voltage threshold
Accuracy: 0.1 Vdc
Range: 150 mA (0. 1 50 V dc)
Currency threshold
Accuracy: 10 mA (0.010 V dc)
Range: 300 mA (0.30 V dc)
Short circuit
Accuracy: -50, +100 mA (-0.050, +0.10 V dc)
Receiver:
Frequency range: 243.0 MHz
Frequency out
Accuracy: 3 kHz
Frequency range: 282.8 MHz
Accuracy: 4 kHz
Range: 14 V (-84 dBM)
Accuracy: 6 V (-3.1 +4.9 dB)
Amplitude output threshold
Range: 1000 s (1 kHz)
Accuracy: 667 to 2000 s (500 Hz)
Audio output
Amplitude output: 3 V p-p