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Page Title:
Frequency and Imaqe Frequency Interference |
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|  MIL-N-81207A(AS)
Type
(1) CW (in REC, T/R and
A/A modes)
(1.1) within 400 kHz of
tracked signal
Level
Image
On Freq.
(1.1.1)Bearing (G/A) -30dBm
-85 dBm
(A/A) -30dBm
-90dBm
(1.1.2)Beacon
-85dBm
Identification- 30dBm
(1.1.3)Distance
-30dBm
-85dBm
(102) 400 kHz to 3 MHz
from tracked signal
-25dBm
-85dBm
(1.2.1)Bearing
(1.2.2)Beacon
Identification-15dBm
-75dBm
(1.2.3)Distance
-15dBm
-75dBm
(2) Pulse pairs of shape conforming to MIL-
STD-291 but spaced as follows:
X Channel, Ground-to-Air and Air-to-Air
ranging modes: less than 8 microseconds
and greater than 16 microseconds.
Y Channel, Ground to Air Mode: less than
26 microseconds and greater than 34
microseconds.
Y Channel, Air-to-Air ranging Mode: less
than 20 microseconds and greater than 28
microseconds.
IFF
Y Channel, Air-to-Air ranging Mode:
(AIMS) reply configuration with
Information Pulse (I/P) at 24.65
microseconds.
26.
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