TB 9-6625-2185-35
Table 1. Calibration Description - Continued
Test instrument
parameters
Performance specifications
Power measurement -
B. Temperature Uncertainty (at 1 MHz)
continued
Temperature
Instrument
All Sensors
21 C to 25 C
0%
(0 dB)
0% (0 dB)
(reference)
18 C to 30 C
2.32% (0.1 dB)
0%
(0 dB)
10 C to 40 C
0.5% (0.2 dB)
4.7% (0.2 dB)
0 C to 55 C
0.6% (0.6 dB)
C. Calibration Factor Uncertainty
Uncertainty
Uncertainty
Max
RSS
RSS
GHz
(%)
(%)
GHz
Max
(%)
.05 2
0
0
9
4.0
2.4
<2
1.3
1.3
10
4.0
2.3
2
3.0
1.7
11
4.0
2.2
3
3.0
1.7
12
4.5
2.8
4
3.5
1.7
13
6.0
3.0
5
3.5
1.7
14
6.0
2.8
6
3.5
1.8
15
6.0
2.8
7
3.5
1.9
16
6.0
2.9
8
4.0
2.0
17
6.0
2.8
----
----
----
18
6.0
3.1
D. Power Reference Uncertainty. Power reference accuracy is 1.2% worst
case for 1 year (0 C to 55 C). When calculating the sum of uncertainties,
only include 0.5% for the power reference as the remaining 0.7% is included
in A above.
1
Certified to .95%.
2 Reference frequency.
EQUIPMENT REQUIREMENTS
calibration procedure. This equipment is issued with Secondary Transfer Calibration
Standards Set AN/GSM-287 or AN/GSM-705. 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
provide a four-to-one ratio between the standard and TI.
usage accessories, issued as indicated in paragraph 4 above, and are not listed in this
calibration procedure. The following peculiar accessory is also required: Calibration
Adapter (7917058).
