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C2, TM 11-6625-564-45
Step
Control setting
No.
Teat Equipment
Performance standard
Equipment under test
Test
procedure
c. Two far right numbers
c. Turn test unit FREQ
on readout mechanism
SELECT 0.1-megacy-
will read same as set-
cle switch to all of its
ting switch.
positions, and observe
readout mechanism.
10
Radio set simula-
FUNCTION SELECT:
a. Observe T/R+G indica- a. T/R+G indicators will
tor
light.
T/R+G.
tor on radio set simu-
Controls remain a
lator.
h. T/R+ G indicators will
at end of step 8
b. Turn test unit FUNC-
extinguish, and ADF
TION SELECT
indicator will light.
switch to ADF, and
observe T/R+ G indi-
cators and test unit
ADF indicator.
ME-26B/U
a. None.
11
a. Disconnect cable W3
POWER: OFF.
from J3 on test unit.
Set to measure
Disconnect dummy
load from ANT jack
J4 on test unit.
b. Connect negative probe
b. ME-26B/U must read 0
Radio set simula-
of ME-26B/U to cen-
ohm.
tor
ter conductor of jack
J3 on test unit; con-
POWER: OFF.
nect positive probe to
center conductor of
ANT jack J4 on test
unit.
read
c. ME-26B/U must
c. Same as b, except connect
and
positive probe to
between 20,000
26,000 ohms.
ground.
d. Same as b, except con-
d. ME-26B/U must
read
RF DET: ON.
and
nect positive probe to
between 1,000
red MAIN AUDIO
3,000 ohms.
test jack on test unit.
c. None.
c. Return RF DET switch
to OFF. Reconnect
cable W3 to J3 and
dummy load to ANT
jack J4 on test unit.
a. Connect 600-ohm input
a. None.
POWER: RESET ON.
of 600-ohm/5-ohm
a. OUTPUT AT-
TENUATOR
matching pad (C, fig.
63 dbm.
421/U. Connect 5-ohm
b. IMPEDANCE
600 ohms.
output of pad to ter-
minals 1 and 3 of
c. FREQUENCY
HDSET H-101A/U
1;000 cps.
jack J9 on test unit.
d. OUTPUT LEV-
Connect a ground bus
EL meter:
between case of pad
+26.8 dbm
and case of audio
(maintain this
level).
73
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