TM 11-5805-424-15/NAVSHIPS 0967-220-9010/TO 31W2-2G-41
c. Alarm Tests (para 7-8).
Test No.
Description
Performance standard
Test data
1a....................
Transmit output level ............................
20 dbm to + 3 dbm.
1b....................
Transmit signal alarm ...........................
ALARM indicator lights 2 seconds
after ME-26A/U indicates volts.- 15 volts.
1c....................
Signal decrease....................................
10 dbm less than 1a above.
1d....................
Signal increase .....................................
5 dbm 1 less than 1a above with
ALARM indicator extinguished.
2a....................
Receive signal alarm.............................
-20 dbm to + 3 dbm.
2b....................
Signal decrease....................................
ALARM indicator lights 2 seconds
after ME-26A/U indicates -15
volts and ME-30A/U indicates 20
dbm less than 2a above.
2c....................
Signal increase .....................................
10 dbm 1 less than 2a above with
minimum distortion.
3a....................
LOSS OF XMTR CARRIER
ALARM indicator extinguished and
ALARM terminal output level.
140A indicates + 6 volts 0.6.
3b....................
Signal decrease....................................
ALARM indicator lights and 140A
indicates zero 2 seconds after ME-
30A/U indicates as in 1c above.
3c....................
Signal increase .....................................
ALARM indicator extinguishes and
140A indicates +6 volts `0.6.
4a....................
LOSS OF REC CARRIER ALARM
ALARM indicator extinguished and
terminal output level.
140A indicates +6 volts 0.6.
4b....................
Signal decrease....................................
ALARM indicator lights and 140A
indicates zero 2 seconds after ME-
30A/U indicates as in 1c above.
4c....................
Signal increase .....................................
ALARM indicator extinguishes and
140A indicates +6 volts 0.6.
5a....................
NO TRANSITION ALARM SEND
ALARM indicator extinguished and
terminal output level.
140A indicates +6 volts 0.6.
5b....................
Signal removed.....................................
ALARM indicator lights and 140A
indicates zero 5 seconds after signal
is removed.
5c....................
Signal applied .......................................
ALARM indicator extinguishes and
140A indicates +6 volts 0.6.
6a....................
NO TRANSITION ALARM REC
ALARM indicator extinguished and
terminal output level.
140A indicates + 6 volts 0.6.
6b....................
Signal removed.....................................
ALARM indicator lights and 140A
indicates zero 5 seconds after signal
is removed.
6c....................
Signal applied .......................................
ALARM indicator extinguishes and
140A indicates +6 volts 0.6.
7-15
