TB 9-6625-2339-24
Table 2. Minimum Specifications of Equipment Required
Manufacturer and model
Common name
Minimum use specifications
(part number)
ATTENUATOR (FIXED)
10 dB:
Weinschel, Model 9918-10 dB
(9918-( ) dB)
Accuracy: 0.3 dB
FREQUENCY COUNTER
Frequency range: 10 MHz
Fluke, Model PM6681/656
Resolution: 0.001 Hz
(PM6681/656)
Measuring receiver system N5530S
MEASURING RECEIVER
Frequency range: 300 MHz
consisting of: Spectrum Analyzer
Accuracy: 300 Hz
dBm range: -9.7 to -10.3
Agilent, Model E4440A (E4440A),
Accuracy: 0.075 dBm
Power meter, Agilent Model E4419B
(E4419B), and Sensor module, Agilent
Model N5532A, opt 518 (518)
Range: 1000 Vdc
Fluke, Model 8840A/AF05
Accuracy: 2 Vdc
(AN/GSM-64D)
POWER SPLITTER
Weinschel, Model 1870A (7916839)
RF REFERENCE SOURCE
Fluke, Model 9640A
Amplitude range: -80 to +12 dBm
Accuracy: 0.02 dB per 10 dB step
Range: 1.0 GHz, 0 dBm 10 kHz-100
kHz offset
Accuracy: ≤-118 dBc
Anritsu, Model 68369NV (68369NV)
SYNTHESIZED SIGNAL
Power range: 0 to -15 dBm
Accuracy: 1.525 dBm
TIME/FREQUENCY
Frequency: 10 MHz
Datum, Model ET6000-75
Accuracy: 0.0025 ppm
WORKSTATION
(13589305)
6. Preliminary Instructions
a. The instructions outlined in paragraphs 6 and 7 are preparatory to the calibration
process. Personnel should become familiar with the entire bulletin before beginning the
calibration.
b. Items of equipment used in this procedure are referenced within the text by common
c. Unless otherwise specified, verify the result of each test and, whenever the test
requirement is not met, take corrective action before continuing with the calibration.
Adjustments required to calibrate the TI are included in this procedure. Additional
maintenance information is contained in the manufacturer's manual.
d. When indications specified in paragraphs 8 through 19 are not within tolerance,
perform the power supply check prior to making adjustments. After adjustments are made,
repeat paragraphs 8 through 19. Do not perform power supply check if all other
parameters are within tolerance.
e. Unless otherwise specified, all controls and control settings refer to TI.