TB-9-6625-1968-35
usage accessories, issued as indicated in paragraph 4 above, and are not listed in this
calibration procedure. The following peculiar accessory is required: 50Ω feedthrough
termination, Hewlett-Packard, Model 11048C.
Minimum use
Manufacturer and model
Common name
specifications
(part number)
AUDIO ANALYZER
Voltage measurements
Boonton, Model 1121 (1121)
Range: 2.85 mV to 3.000 V ac
Accuracy: 1.25%
Range: -17.442 to 17.442 V dc
Accuracy: 0.5%
Distortion measurements
Capability: <0.5%
FREQUENCY COUNTER
Range:
6060 ms to 13.65 MHz
Fluke, Model PM6681/656
(PM6681/656)
Accuracy: 1.25%
Rise and falltime measurements
(OS-303/G)
Capability: < 18 ns
Aberration measurements
Capability: 10% of pulse amplitude
6. Preliminary Instructions
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
name in table 2.
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 for this TI.
perform the power supply check prior to making adjustments. After adjustments are made,
repeat paragraphs 8 through 13. Do not perform power supply check If all other
parameters are within tolerance.
e. Unless otherwise specified, all controls and control settings refer to the TI.
