Sigtronics ST-8P User manual

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Sigtronics
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…when it counts!
Sigtronics Corporation
178 East Arrow Highway
San Dimas, CA 91773
Phone: [phone]
E-mail: [e-mail]
Web Site: www.sigtronics.com
Model ST-8P
Headset Instructions
The ST-8P series headset is adjusted at the factory for immediate use with all
Sigtronics emergency apparatus intercoms and radio adapters in emergency
vehicles. The headset is equipped with a single plug and a coiled cord.
The head strap is adjustable so you may custom t the headset. Place the headset
over your head and adjust the strap until minimum pressure is felt on the top of
your head. For maximum noise attenuation, the clamping pressure of the head-
band has been set at the factory. Releasing the clamping pressure by bending the
headband is not advised, because loss of attenuation will result.
The microphone boom is fully adjustable and will rotate 180 degrees for use on
the left or right side of the head.
Make sure you are speaking into the side of the mic labeled “Talk” or sub-
stantial loss of gain will occur. Microphone placement should be at the corner
of the mouth, approximately ¼” from the lips.
Your ST-8P headset has a push to talk switch located on the mic side ear cup. The
mic is operative only when the switch is depressed. For intercom and radio func-
tion, depress the switch to talk.
When you rst connect the headset, turn the volume control on the headset
up to the full clockwise position, then adjust the listening volume with the audio
control of either your radio or intercom as appropriate. If applicable, crew mem-
bers should also turn their individual headset volumes up fully. Doing this allows
for a full range of adjustment for each passenger, since those with the most acute
hearing can turn their headset volume down, if necessary.
continued on back…
The headset parts may be cleaned with mild soap and water using a soft cloth.
Then dry immediately. Caution: Do Not immerse any part of the headset in water
or any other liquid. Be especially careful not to allow the microphone to become
wet! Exposure to moisture may cause internal corrosion and failure and will void
your manufacturers warranty.
Cleaning will help the headset maintain its “like new” condition for many years.
WINDSCREEN
The microphone windscreen will reduce annoying wind noise and breath pops
picked up by headset microphones. It also protects the microphone element
from dirt and moisture. The windscreen should be washed regularly to maintain
hygiene and avoid clogging. Wash in warm water and mild soap. Rinse thoroughly
and make sure it is completely dry before putting it back on.
To remove the windscreen, carefully grasp the windscreen lightly along its entire
length and remove from the microphone element being careful not to twist the
element itself.
Put the windscreen on the microphone by gently pulling from the open end. Do
not pull it so tightly that it stretches against the end of the microphone.
WARRANTY
Your headset is covered by a limited two-year parts and labor warranty. Please see
the enclosed warranty card for details.
You may refer to the parts list on the reverse side, if you choose to replace parts
yourself. The parts list describes parts for this particular headset only. Parts lists
for other models are available on our Web Site or can be obtained by contacting
Sigtronics Corporation.

SIGTRONICS ST-8P HEADSET PARTS IDENTIFICATION BREAKDOWN
ITEM P/N DESCRIPTION ITEM P/N DESCRIPTION ITEM P/N DESCRIPTION
1100772 HEADBAND EXTRUSION, 4 IN., ST-8 13 100597 NUT, HEX, 3/8-24, FLEX BOOM ADAPTER 25 100568 STRAIN RELIEF, CABLE
2800220 HEADBAND, METAL, BLACK, WITH GROMMETS, ST-8 14 10 0611 WINDSCREEN, MICROPHONE, FOAM, BULK 26 100769 KNOB, 1/2 INCH, BLACK, TACTICAL
310 0411 STRAP, HEADSET, ST-8, BLACK 15 90 0111 WINDSCREEN, MICROPHONE, FOAM, PACKAGED 27 100077 POTENTIOMETER
4100451 STUD, ST-8, EAR CUP TO BAND MOUNT 16 100612 O-RING, WINDSCREEN RETAINER, ST-8 28 100858 RECEIVER AND MOUNT, 300 OHM, MONO
5100108 SCREW, 4 X 1/4, THREAD FORMING 17 800192 PREAMP 29 100232 SWITCH, SPDT, MOMENTARY
6100742 NUT, HEX, 8-32, LOCKING, BLACK 18 100369 EAR SEAL, FOAM FILLED 30 100625 O-RING, PTT, HEADSET
7100252 NUT, HEX, 8-32, LOCKING 19 100374 FOAM, SOUND ATTENUATING. NOTCHED, 1/2 INCH 31 100428 SWITCHGUARD, PTT, BLACK
8100977 EAR CUP, PRINTED AND DRILLED, MICROPHONE SIDE 20 100376 FOAM, SOUND ATTENUATING. RECEIVER HOLE, 1/2 INCH 32 10 0317 BUTTON, SWITCH, PTT, RED
9100976 EAR CUP, PRINTED AND DRILLED, VOLUME CONTROL SIDE 21 100379 FOAM, SOUND ATTENUATING, RECEIVER COVER, 1/4 INCH 33 100675 OPTIONAL – HEADBAND, METAL, BLACK, LARGE
10 100049 GROMMET, 5/16 INCH, RUBBER 22 800035 CABLE, HEADSET, STEREO, COILED 34 100402 OPTIONAL – EAR SEAL, GEL FILLED
11 100567 GROMMET, ST-8 STUD 23 100932 WIRE, CROSSOVER, BEHIND THE HEAD, 23 INCH
12 800193 MICROPHONE & FLEX BOOM ASSEMBLY 24 100935 WIRE, #22, JUMPER, HEADSET, 4 INCH
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10-11-2021
st-8p.pdf