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|  MIL-R-23016(Wep)
(Continued)
3.2.9.9.2
(s) Ambient interference levels.
(t) Measured Impedance of line stabilization network.
(u) Certification required in 3.2.9.9.6.
3.2.9.9.2.1 Examples of Sample Calculation:
(a) Interference measuring equipment
NF-105
460 mc
Frequency of cw measurement
+8 db
Antenna actor (DM antenna)
Cable loss correction factor at 460 mc
+3 db
+40 db
Meter reading
Interference level = meter reading + cable loss
+ antenna factor = 40 + 3 + 8 = 51 db
(b) Interference measuring equipment
NM-20B
Frequency of broadband radiated measurement
500 kc
Antenna factor
1
Cable loss correction factor
1
Meter reading
9 microvolt
Effective random bandwidth
3,400 cps
Impulse bandwidth = 1.4 x 3,400 = 4,760 cps = 4.760 kc
(meter reading) (antenna factor) (cable loss)
Interference level =
(impulse bandwidth)
-9x1x1=
Antenna induced microvolt
4.76
kc
= 65.75 db above 1 microvolt per mc (antenna induced)
3.2.9.9.2.2 Identification of Test Sample:
The test sample shall be completely identified in the test report
with complete nomenclature, manufacturer, and serial number. All
suppression work performed on the test sample during the inter-
ference tests shall be fully described in words as well as by the
test data in the test report.
59
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