igtronics
®
S
Sigtronics Corporation
178 East Arrow Highway
San Dimas, CA 91773
Phone: 909 305-9399
E-mail: [email protected]
Web Site: www.sigtronics.com
Model S-ARH
Headset Instructions
The S-ARH series headsets are adjusted at the factory for immediate use with all standard
general aviation radio systems utilizing the U174/U jack. Headsets are equipped with a
single volume control, coiled cord and a U174/U plug (mono only).
The headband is adjustable through a full range of adult sizes, 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 (youth size) or large head-
bands are needed, they may be ordered from Sigtronics.
The microphone boom is fully adjustable and will rotate 180 degrees. For best results use
with the microphone on the left side of the head. Make sure you are speaking into the
side of the mic labeled “Talk” or substantial loss of gain will occur. Microphone place-
ment should be at the corner of the mouth, approximately 1/4” from the lips. Sigtronics
ultra-deep gel ear seals will provide for best performance. Do not insert any material into
the ear cups.
When you first connect the headset ,make sure the S-ARH power plug securely fastened
to the battery box power jack and push the power switch to the ON ( — ) position. Turn
volume control on the headset up to maximum volume (the full clockwise position). 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 necessary.
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Test the headset in the ON ( — ) and OFF (
O
) modes on the ramp prior to take off. If
there is a problem in the ON ( — ) position then use in the OFF (
O
) position. The S-ARH
is completely fail-safe and will continue to work even if power to the headset is lost. If the
power to the headset is unstable, simply turn off power and use headset in the OFF (
O
)
position. The S-ARH performs best when using high quality Alkaline batteries. The life of
these high quality batteries should last 20 hours minimum. To guard against accidentally
leaving the power on, unplug the power cable from the power module when not in use.
DO NOT ATTEMPT TO POWER THE S-ARH DIRECTLY FROM YOUR AIRCRAFT electrical
system without using our panel mount power system. This system will give clean stable
power to the S-ARH.
CLEANING
Headset parts may be cleaned with mild soap on a soft damp cloth. Then dry immedi-
ately. 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 it 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 three-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.
