TB 9-6695-300-50
Table 1. Calibration Description - Continued
Performance specifications
Test instrument parameters
Frequency: Specific K-Band
Range: K-Band
(Targetron, Model 111724)
120 km/h, 5370.6 Hz
Accuracy: 10 Hz
Frequency: Specific K-Band
Range: K-Band (carrier, 24.15 GHz)
(Decatur Electronics, Model
77.6 MPH, 5589 Hz
Accuracy: 5 Hz
GHS-77.6)
Frequency: General Ka-Band
Range: Ka-Band (carrier 34.7 GHz)
25 MPH, 2587 Hz
40 MPH, 4139 Hz
Accuracy: 103.5 Hz
Frequency: Specific Ka-Band
Range: Ka-Band (carrier, 33.4 to 36 GHz)
(Kustom Signal, Inc., Model
25 MPH, 2667 Hz
Golden Eagle (Ka)
30 MPH, 3208 Hz
35 MPH, 3737 Hz
50 MPH, 5737 Hz
55 MPH, 5892 Hz
60 MPH, 6426 Hz
65 MPH, 6961 Hz
Accuracy: 10 Hz
1Specific
Kustom Electronic Model HR12 tuning forks made from 1990 to present have frequencies of 4732 Hz
10 Hz only at 65 MPH.
EQUIPMENT REQUIREMENTS
calibration procedure. This equipment is issued with 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
ratio between the standard and TI. Where the four-to-one ratio cannot be met, the two-to-
one accuracy will be listed and the actual accuracy of the equipment selected is shown in
parenthesis.
usage accessories issued as indicated in paragraph 4 above and are not listed in this
calibration procedure.
Manufacturer and model
Common name
Minimum use specifications
(part number)
Fluke, Model PM6681/656
FREQUENCY COUNTER
Range: 1 to 10 KHz
(PM6681/656)
Accuracy: 0.25% of reading
TUNING FORK
Range: 30 to 100 dBA, 70 to 140 dBC
Quest Technologies, Model
CALIBRATOR
Sound level accuracy: Not applicable
2400 (APN: 13534004)
