igtronics
®
S
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 headbands 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 placement should be at the corner of the mouth, approxi-
mately 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 individ-
ual 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.
Test the headset in the “ON” and “OFF” modes on the ramp prior to take off. If
there is a problem in the “ON” position then use in the “OFF” 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” position. The S-ARH performs best when using high quality Alkaline
batteries. The life of these high quality batteries should last 20 hours minimum.
continued on back…
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
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 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.
Sigtronics Corporation
178 East Arrow Highway
San Dimas, CA 91773
Phone: 909 305-9399
E-mail: info@sigtronics.com
Web Site: www.sigtronics.com
(2 pages)
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