(4) Position the cushion adjusting assembly
for the maximum degree of comfort.
Frequency response. . . . . . 800 to 4,000 cps.
(5) Readjust both assemblies ((3) and (4)
above) for maximum comfort.
(6) Loosen the tension nut on the swivel
Output level. . . . . . . . . . . . . . 46 db above 1 milli-watt.
bracket assembly (para l-6b).
(7) Adjust the microphone boom assembly
so that the microphone is approximately one-half
inch from the lips.
Headset-Microphone H-182/PT is comprised of
(8) Tighten the tension nut ((6) above) on
the assemblies described in a through e below.
the swivel bracket assembly.
a. Earphone and Earcup Assembly. The ear-
( 9 ) Insert Connector Plug, Electrical
phone and earcup assembly consists of Receiver
U-161/U into the proper receptacle on the equip-
Element TA-235/PT, a high-impact plastic earcup,
ment and slowly rotate the connector clockwise
a two-conductor terminal block and cover plate,
with a steady forward pressure.
and a soft-rubber ear cushion.
(10) When the guide pins of the connector
b. Boom Microphone Assembly. The boom
((9) above) are in the proper grooves, the con-
microphone assembly consists of a high-impact
nector will move forward and seat itself.
plastic boom case containing a carbon microphone
(11) Twist the knurled portion of the con-
element, a ball and socket device, a wire loop,
nector to the right and pull sharply to set the
and a swivel bracket assembly.
connector.
c. Switchbox Assembly. The switchbox assem-
b. Operating Procedures. The four positions of
bly consists of a high-impact plastic case housing,
the H-182/PT push-to-talk lever and bar-actuated
a push-to-talk lever and bar-actuated switch, a
cover assembly, and a clothing clip.
described in (1) through (4) below.
d. Headband Assembly. The adjustable, flexi-
(1) Monitoring telephone or radio transmis-
ble, headband assembly consists of a tubular,
sion (position No. 1 ).
plastic-covered headband, a fold-away earphone
(a) O p e r a t e t h e a p p r o p r i a t e s w i t c h i n g
adjusting assembly, and a cushion adjusting
mechanism on the associated (external) equip-
assembly.
ment to energize the incoming telephone or radio
e. Cord Assembly. The cord assembly consists
circuit transmission.
of a two-conductor straight cord with solderless
(b) Disengage the switchbox locking mech-
connectors, a four-conductor straight cord with
anism (if previously locked) by sliding the push-
stay cords and solderless connectors, and a seven-
to-talk lever downward.
conductor retractile tinsel cord with stay cords
(c) Release the push-to-talk lever to posi-
and solderless connectors on one end and a
tion No. 1.
Connector Plug, Electrical U-161/U on the
(2) Monitoring telephone transmissions (posi-
other end.
tion No. 2).
(a) Operate the appropriate switching
1-7. Installation and Operating
mechanism on the associated (external) equip-
Instructions
ment to energize the outgoing telephone circuit.
(b) Squeeze the push-to-talk lever so that
it is depressed against the bar-actuated switch.
a. Headset Installation.
Caution: Do not apply pressure with
(1) Extend the fold-away earphone adjusting
a force great enough to engage the bar-actuated
assembly and cushion adjusting assembly to
switch.
their outward limits.
(c) Hold the push-to-talk lever in the
(2) Place the headband assembly on the head.
depressed position ((b) above) throughout the
(3) Hold the earphone and earcup assembly
transmission.
(3) Continuous telephone transmission (posi-
on the crown of the headband to slide the head-
tion No. 3).
band assembly smoothly into position.