TB 9-6625-2297-24
provide a four-to-one ratio between the standard and TI. Where the four-to-one ratio
cannot be met, the actual accuracy of the equipment selected is shown in parenthesis.
5. Accessories Required. The accessories required for this calibration are common
calibration procedure. The following peculiar accessory is also required for this calibration:
Power sensor cable, Agilent, Model 11730A.
Table 2. Minimum Specifications of Equipment Required
Minimum use
Manufacturer and model
Common name
specifications
(part number)
FREQUENCY
Frequency range: 49.5 to 50.5 MHz
Fluke, Model PM6681/656
COUNTER
Accuracy: 0.25%
(PM6681/656)
A
Agilent, Model 3458A (3458A)
Ability to measure approximately 200
bility to measure V dc
Agilent, Model E12-432A
POWER METER
Range: 0.988 to 1.012 mW
(MIS-30525) w/thermistor
Accuracy: 0.7%
mount, Agilent, Model 478A-
Frequency range: 50 MHz
Must have VCOMP and VRF outputs
H75 (7915907) or 8478B
(8478B)
Range: 3 W to 100 mW
RANGE
Agilent, Model 11683A
CALIBRATOR
(11683A)
Accuracy: 0.25%
CALIBRATION PROCESS
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
name as listed 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.
d. Unless otherwise specified, all controls and control settings refer to the TI.
7. Equipment Setup
HIGH VOLTAGE is used or exposed during the performance of
this calibration.
DEATH ON CONTACT may result if
personnel fail to observe safety precautions. REDUCE
OUTPUT(S) to minimum after each step within the
performance check where applicable.
