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13. Wayside dropping: - If any small station in any hop requires 2 MB stream, an
additional card is provided in system so as to handle the traffic of small station
along with main M/W system.
fferential Absolute Delay Equalizer.
It is to adjust the phase difference between signals received through
15. ATPC: - Automatic Trans Power Control.
ATPC facility was introduced first time by BOSCH in 6 GHz M/W system. It
, Tran’s power high and Low. ATPC threshold also cab be set to -
60. Receive power can be adjusted to -33 to -50 dBm by adjusting Trans
by some strapping in MOD unit. e.g. for ATPC
d ATPC OFF strap between 10 to 8 .
16 i urve
rate. For this test Fade simulator is required.
8
14. IF DADE: - Di
main and space diversity antenna. This phase difference causes loss of bits. DADE
cable is used and it is placed between IF out and RX2 IN. It contains a delay cable of
length L to compensate the delay time difference between main and Receiver and space
diversity receiver.
is available in order to reduce interference from neighboring system this can be
achieved by strapping in conf. management facility in craft terminal. There are three
types of settings, Auto
40,-50, or -
power at distant end. This is achieved
ON strap between 8 to 9 an
. S gnature Test :- ( M curve test ) See Fig. 7-18 for C
This test is to see how much notch depth can be tolerated for 10
-3
20 db
10 db
5 db
2 db
Fig. 7-1
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