TB 9-6625-2308-35
Table 1. Calibration Description - Continued
Cal factor uncertainties (KB)
Frequency
Uncertainty
1.61%
Cal factor uncertainties (KB)
.1 to
1
GHz
1.95%
1.0 to
2.0
GHz
2.44%
2.0 to
4.0
GHz
2.67%
4.0 to
6.0
GHz
2.86%
6.0 to
8.0
GHz
3.59%
8.0 to 12.4
GHz
4.09%
12.4 to 18.0
GHz
EQUIPMENT REQUIREMENTS
4. Equipment
Required. Table 2
identifies the
specific equipment to be
used in this
calibration procedure. This equipment is issued with Secondary Transfer Calibration
Standards Set AN/GSM-287 or AN/GSM-705, and Secondary Reference Calibration
Standards Set NSN 4931-00-621-7878. Alternate items may be used by the calibrating
activity. The items selected must be verified to perform satisfactorily prior to use and must
bear evidence of current calibration. The equipment must meet or exceed the minimum use
specifications listed in table 2. The accuracies listed in table 2 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
usage accessories, issued as indicated in paragraph 4 above, and are not listed in this
Table 2. Minimum Specifications of
Equipment Required
Manufacturer and model
Common name
Minimum use specifications
(part number)
ATTENUATOR
Range: 0 to 90 dB in 10 dB increments
Hewlett-Packard, Model 355D
Accuracy: 0.1 dB
(7910807)
FREQUENCY COUNTER
Range: 50 MHz
Fluke, Model PM6681/656
Accuracy: 0.5%
(PM6681/656)
LOW PASS FILTER
Telonic, Model TLC-75-6EF1
(TLC-75-6EF1)
Hewlett-Packard Model
Range: 0 to 10 V dc
Accuracy: 0.05%
3458A (3458A)
Resolution: 1 mV
Accuracy: 1%
POWER METER
Equipped with VCOMP and VRF terminals
Hewlett-Packard, Model
E12-432A (MIS-30525)
w/thermistor mount
Hewlett-Packard, Model
H75-478A (7915907) or
8478B (8478B)
POWER SPLITTER
Weinschel, Model 1870A
Accuracy: 0.25%
(7916839)
Power range: 0 to +20 dBm
757LC (MIS45845)
Range:
50 MHz
SG-1207/U
Accuracy: NA (Input source for RF Amp)