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Page Title:
Operation of Measuring Instruments |
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|  MIL-R-23016(Wep)
3.2.9.9.3
Operation of Measuring Instruments:
For both conducted and radiated interference measurements, the
instruments used shall be calibrated and operated as indicated
in their respective instruction manuals, unless otherwise per-
mitted by this specification.
3.2.9.9.3.1 Calibration:
Interference measuring instrumentation shall be maintained in a
known condition of accuracy. Periodic checks on the calibration
accuracy shall be made with laboratory generators. Recalibration
shall be accomplished when the standardized gain setting fail. to
reflect a meter reading within 20 percent of the known input
signal. Substitution type measurements can be used in lieu of the
calibrated method.
3.2.9.9.3.2 Generator Accuracy:
Laboratory-type signal generators and impulse generators capable
of an output voltage accuracy of at least 20 percent shall be used
to calibrate interference measuring instruments and for substitution
measurements.
3.2.9.9.3.3 Broadband Interference Measurement:
Broadband interference shall be measured by using an impulse
generator with the substitution technique, or by calibrating the
interference measuring instrument so that it reads directly in
decibels above 1 microvolt per unit bandwidth. The peak detector
function on the interference measuring instruments shall be used
for broadband and pulse CW measurements.
3.2.9.9.3.4 CW Interference Measurements:
CW interference shall be measured by calibrating the interference
measuring instrument so that it reads directly in decibels above
1 microvolt or by using a signal generator with a substitution
technique.
3.2.9.9.3.5 Pulsed CW Interference Measurements:
Pulsed CW shall be measured in accordance with the procedures and
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