Quantcast Transmitter - TM-9-1375-213-12-30041

 

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Figure 3-5. Improvising a replacement antenna.
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TM-9-1375-213-12-3 Firing Decive Demolition.M122 (NSN 1375-01-021-0606) (EIC: 2NA) Manual
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Receiver
TM 9-1375-213-12-3
TM 9-1375-213-12.3
TO 11A20-15-1
b. Procedures.
FIRE BUTTON. A SLIGHT BURN
CAN RESULT FROM TOUCHING
THE ANTENNA WHEN A SIGNAL
IS BEING TRANSMITTED.
ADDITION, THE TRANSMISSION
RANGE WILL BE REDUCED.
DO NOT UNDERTAKE THIS
q
PROCEDURE IN THE SAME
AREA OR AT THE SAME TIME
(4) Lift FIRE button cover and depress
THAT OPERATIONS ARE BEING
FIRE button for 5 seconds while observing
CONDUCTED IN WHICH OTHER
FIRE SIGNAL lamp.
M122 FIRING DEVICES ARE
BEING USED.
(a) Lighting of FIRE SIGNAL
lamp indicates transmitter is in working order
KEEP THE TRANSMITTER AT
and may therefore, be used to test operability
q
LEAST 100 FEET FROM ANY
of receiver.
ELECTRIC BLASTING CAPS (OR
OTHER
ELECTRO-EXPLOSIVE
(b) If FIRE SIGNAL lamp does
DEVICES) DURING CHECKOUT
not light, the most probable cause is a weak bat-
OR USE,
tery pack or corroded battery contacts. See para-
graphs 3-4, 3-6, and 3-10 for corrective mainte-
nance. After correcting deficiencies, again
perform self-test as above.
c. Transmitter. Perform self-test as fol-
lows:
(5) Retract and secure antenna.
NOTE
NOTE
For transmitter self-test, the area code
If a transmitter appears defective and
switch may be in any position.
actions described in (4) above do not
restore unit to serviceable condition,
the problem may be only the FIRE
SIGNAL lamp.  If time and circum-
stances permit, try to use the appar-
(1) Set code to 000000 by depressing
the six push button switches,
ently defective transmitter to actuate a
receiver that has been successfully
checked out with another transmitter,
(2) Unscrew antenna cap,
If it actuates the receiver, it is good and
may be used, The lamp is not critical to
(3) Extend the antenna (fig. 2-1).
the OPERATION of the transmitter. It
is only supposed to light when power is
fed to the antenna. The lamp is not
WARNING
replaceable;  a good transmitter with
only a defective lamp maybe used.
AVOID
CONTACT
WITH
ANTENNA WHEN
PRESSING
3-9

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