background image

igtronics 

®

S

igtronics 

®

S

…when it counts!

Model S-45S

Headset Instructions

The S-45S series headsets are adjusted at the factory for immediate use with all 

current standard radio systems in general aviation aircraft. Headsets equipped 

with two plugs are the standard configuration. The headphone plug is the larger 

diameter plug and should be inserted into the headphone jack (.250” standard 

monaural jack). The mic plug is the smaller diameter plug and should be inserted 

into the microphone jack (.206” standard microphone jack).

The headband is adjustable through a full range of motion, or the locking nuts 

may be tightened to allow you to custom fit the headset. Place the headset over 

your head, adjust the slides up until minimum pressure is felt on the top of your 

head. The headset is now properly adjusted. For maximum noise attenuation, the 

clamping pressure has been set at the factory. Releasing the clamping pressure 

by bending the headband is not advised, because loss of attenuation will result. 

Note: If especially small (children) or large headbands are needed, they may be 

ordered from Sigtronics.

The microphone boom is fully adjustable and will rotate 360 degrees for use on 

the left or right side of the head. The locking screw that secures the boom to the 

ear cup is factory set to insure the correct tension. Turning it will not change the 

tension, because the nut on the inside of the cup will turn as well. Microphone 

placement should be at the corner of the mouth, approximately ¼” from the 

lips. The exclusive thumbscrew on the mic boom may be used to assure proper 

adjustment.

When you first connect the headset, turn the volume controls on the headset to 

maximum ( full clockwise on mic side, counterclockwise on pot side ), then adjust 

the listening volume with the audio control of either your radio or intercom as 

appropriate. Passengers 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 nec-

essary.

     continued 

on 

back…

The headset is equipped with a stereo / monaural switch on the non-mic side ear 

cup. For monaural sound or aircraft with only monaural jacks, move the switch to 

the monaural position. In aircraft equipped for stereo audio, move the switch to 

the stereo position.

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 thor-

oughly and make sure it is completely dry before putting it back on.

To remove the windscreen, take out the screw that holds the microphone on the 

boom and grasp the windscreen lightly along its entire length and slip it off.

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 five-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 

Corporation

     178 

East 

Arrow 

Highway

     San 

Dimas, 

CA 

91773

     Phone: 909 305-9399
     E-mail: [email protected]
     Web Site: www.sigtronics.com

Reviews: