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4.5.6.6 Fast turn off inhibit test. Apply +13.5 + 0.1VDC to A3-
E3 (vBATT), 3.6+1.6 volts to A3-E9 (SEND), and 0.0+0.1 volts to A4-E16
(TUNE) and A4-E20 (STROBE IN). Change the voltage at A4-E20 (STROBE
IN) from 0.0+0.2 to 4.8+0.2 volts and verify that the power into the
50 ohm load, A4-E22 (STROBE BuFF) and A4-E21 (sTROBE BUFF-) 0utputs
are in compliance with the requirements of 3.8.60
Apply +13.5 + 0.1VDC to A3-E3
4.5.6.7 Send enable/disable test.
(VBATT), 3.6+1.6 volts to A3-E9 (SEND) and 0.0+0.2 volts to A4-E16
(TUNE) and A4-E20 (STROBE IN). Verify that the voltage at A4-E23
(A.T.+5VDC) is in compliance with the requirements of 3.8.7. Change
the voltage at A3-E9 (SEND) to 0.0+0.2 volts and verify that the power
into the 50 ohm load and voltage at A4-E23 (A.T. +5VDC) are in
compliance with the requirements of 3.8.7.
Apply +13.5 + 0.1VDC to - A3-
4.5.6.8 Mark/space frequencies test.
E3 (vBATT), 3.6+1.6 volts to A3-E9 (SEND), and 0.0+0.2 volts to A4 E16
(TUNE) and A4-E20 (STROBE IN). Apply 4.8+0.2 vOlts tO A4-E5 (MESSAGE
DATA INPUT), and verify that the RF output at A3-E4 is in compliance
with the requirements of 3.8.8. Apply 0.0+0.2 vOlts tO A4-E5 (MESSAGE
DATA INPUT) and verify that the RF output at A3-E4 is in compliance
with the requirements of 3.8.8.
4..5.7 S e n d e r _ E l e c t r o n i c _ C o m p o n e n t A s s e m b l y p e r f o r m a n c e tests.
The following section describes the performance tests for the Sender
Electronic Components Assembly (9333599), otherwise specified, all
testing shall be performed at room ambient conditions and in the order
listed. Other orders are possible with approval from ARDEC.
4.5.7.1 Data input test.
For this section, key entry
referred
to in tests shall be defined as specified in section 3.9.5.
test. Measure the DC resistance
4.5.7.2 Internal
termination
-
from A2-E52 (Col 1), A2-E53 (Col 2), A2-E54 (Col 3), A2-E55 (Col 4),
and A2-E40 (SEND) to A2-E44 (+5VDC) and then measure the DC resistance
from A2-E38 (S.C.S.) and A2-E39 (XMIT) to A2-E43 (GND) and verify
compliance with the requirements of 3.9.20.
.
4 . 5 . 7 . 3 Power
source.
Set the output of a DC power supply to O
+ 0.1 volts. Connect the negative terminal to A2-E43 (GND) and the
positive terminal to A2-E45 (RAMV). Set the output voltage to 13 + 0.5
volts.
4.5.7.4 Loads. Connect Transfer Load II of Figure lb across .A2-
E35
(M C D1 and A2-E36 (MCD2).
4.5.7.5 Initial input conditions.
The initial input conditions
shall be as listed below.
INPUT TERMINAL
SIGNAL NAME
CONNECT TO
A2-E49
Row 1
Open
A2-E51
Row 2
Open
A2-E50
Row 3
Open
A2-E48
Row 4
Open
A2-E52
Col 1
Open
144
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