Pilot USA PA-1771T User Manual

PA-1771T

Liberty Series

Owner’s Manual

“Biggest Bang For The Buck”

Originally introduced at the Oshkosh AirVenture 2001 Fly-In as the first ANR headset with built-in
cell/satellite phone jack, the PA-1771T continues to be one of the industry’s most popular,
affordable ANR headsets. As one of our lightest weight ANR headsets (11.9oz) this ANR combines
25dB (NRR) passive noise reduction and 18-22 dB of active noise canceling.

Features

Passive: 25 dB (NR) Auxiliary Audio Interface
Active: Additional 18 – 22 dB Dual Volume Control
30 dB Noise Reduction At 100 Hz Custom Padded Headset Case
Mono/Stereo Capability Uses 9V Alkaline Battery
Electret Noise Canceling Microphone w/ Windscreen Auto On / Auto Off Circuitry
Sheepskin Head Pad Battery Life 25 – 35 Hours
Silicone Gel Ear Seals Weight: 11.9 Oz (333 Grams)
Cell/Satellite Phone Interface Five Year Warranty

Made in USA

Additional Models

PA-1771TH Helicopter Model – with coiled cord and U174/U plug

Optional Accessories

Throat Microphone (PA-2E) Standard Foam Ear Seals (PA-21F)
Leatherette Windscreen (PA-11) Metal Headband

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Table of Contents

Introduction 1.0
Features 1.1
Fitting Your Headset 2.0
Microphone Placement 2.1
Volume Control 2.2
Mono / Stereo Selector 2.3
Battery Box 3.0
A. Power Button 3.0
B. Led Light 3.0
C. Power Jack 3.0
D. Battery Compartment Door 3.0
Cell / Satellite Phone Jack 3.1
Custom Padded Headset Case 3.2
Taking Care Of Your Headset 3.3
A. Microphone Windscreen 3.3
B. Ear Cushions 3.3
C. Communication Cord 3.3
Technical Specifications 4.0
FAQs 4.1

2.0 Fitting Your Headset

Wearing your headset properly is paramount in achieving both comfort and the best performance possible.
The headset should be placed on your head and slowly pulled down so that each ear cup is properly
positioned over the ears.

It should apply slight pressure on your head without being to snug. You may need to make your final
adjustments in a high noise environment and with the ANR electronics turned on.

2.1 Microphone Placement

Your headset comes with a fully flexible microphone boom and a noise canceling electret microphone. The
boom can be rotated 360 degrees for left or right side use. Proper placement of the microphone is critical in
order to achieve clear communications. The microphone should be positioned at the corner of your mouth
approximately ¼” away from your lips.

2.2 Volume Control (On Comm-Cord Splitter)

The PA-1771T is fitted with two individual volume controls, one each for the right and left side of the
headsets. The volume control is located on one side of the triangular splitter on the comm-cord. The other
side contains the mono-selector switch. When adjusting the volume control the pilot-in-command should
adjust their volume control first with the audio system turned on and the ANR system turned off. Then turn
the ANR back on and adjust the individual sides of the headset.

2.3 Mono/Stereo Selector (On Comm-Cord Splitter)

Your headset comes standard with a Mono/Stereo selector switch which is located on one side of the
triangular splitter. “M” indicates the mono position while “S” indicates the stereo position. The volume control
is on the reverse side. It should be noted that if you are using a monaural intercom and your headset is set
in the stereo position, you will only hear through one speaker of your headset. With a stereo intercom you
will hear true stereo in both ears.

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3.0 Battery Box
A. Toggle Switch: The Toggle Switch on the battery box has 2 positions, Auto and On. To turn the

ANR On when not plugged in to the aircraft panel or intercom, put the switch in the On position.
To turn ANR Off, put switch in Auto Position. When switch is left in Auto position ANR will
automatically turn on when headset is plugged in to the aircraft panel or live intercom system.

B. LED Light: The LED light indicates the power status of your ANR system. When the light is

illuminated, the ANR system is turned on.

C. Power Jack: The power cord from the headset plugs into the power jack on the face plate of the

battery box.

D. Battery Compartment: The ANR system is powered by one 9V alkaline battery. Battery life is

estimated to be 25 – 35 hours depending on level of noise in the environment. Battery life is also
affected by age and extreme hot and cold temperatures. To change the battery simply slide the
battery plate off the battery box and insert the new battery. Reinstall the plate and you’re ready
to go.

3.1 Cell / Satellite Phone Capable

In an emergency having the capability of being able to place a cell phone call from your aircraft is one of the
reasons PILOT has installed a Cell/Satellite jack on the headset. Located on the Right Ear cup (Non boom
side) is a 3.5mm jack. The headset comes with two cables marked “PHONE” and “AUDIO”. The right angle
(90o) plug on both cables should always plug into the headset. The straight plug will plug directly into your
cell phone or audio input source. An adapter may need to be purchased from us in order to utilize this
feature.

3.2. Custom Padded Headset Case

We provide you with a custom padded headset case to protect your ANR headset and to house your battery
box, headset and comm-cord. You should treat you headset like you would treat any other electronic
product of value. Keep it clean and out of extreme temperatures for best results.

3.3 Taking Care of Your Headset

To insure the full life of your headset, keep it clean and free of dust and dirt. Clean your headsets with non­alcohol wipes or a soft cloth dampened with water and a mild soap. Never use alcohol. Plastic parts dry out
or fray when exposed to alcohol based products. Headband, ear cups, ear seals and cords can be lightly
cleaned but one should be careful around the microphone and speakers on the headset.

A. Mic Windscreen: PILOT recommends periodically replacing the microphone windscreen if

necessary. The foam microphone windscreen helps eliminates the popping “P”s and “T”s and
annoying breath puffs when you’re communicating with the headset. The foam microphone
windscreen also helps protect the microphone from moisture and other elements that may cause
damage to the electronics. You may use mild soap and water to clean your foam windscreen.
Place the foam windscreen in mild soapy water. Rinse and make sure the windscreen is fully air
dried before reattaching to the microphone.

B. Ear Cushions: Ear seals also need periodic replacing. Depending on how much you fly,

temperature (extreme heat or cold) also influences the life span of your ear seals. We have several
types of ear seals on our headsets. Generally PVC, foam and silicone gel style ear seals can be
wiped off with mild soap and water. Do not submerge the ear seals in water. All three types of ear
seals have vent holes and water would enter the ear seal’s vent holes thus ruining the ear seal.

C. Communication Cord: Take care of your communication cord. Wires in the cord can break if

abused. Always disconnect them by disconnecting the plugs, not by pulling the cords. Pulling on
the cord instead of the plugs is a major cause of headset repairs – it causes wire breaks and static.

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4.0 Technical Specifications

Microphone: Transducers:

Generating Element - Electret Condenser Audio Speaker Impedance: 300 ohms
Polar Pattern—Bi-Directional Nominal Power: 100 mW
Frequency Response—150-4000 Hz Max Power: 200 mW
Impedance—50 ohms @ 16 VDC SPL: 102+2dB at 1 KHz
Sensitivity– 100dB @ 1mW Input Effective DNC Frequency Range: 30 Hz - 8000Hz
Power Requirements— 8-16 VDC Active Noise Reduction: 18-22 dB at 100 Hz
Current Drain—8 mA at 8 VDC Maximum Ambient Noise Level: 120 dB SPL
Color/Case Materials —Black ABS
Weight — 6 grams
Mating Connector—U173/u

4.1 FAQs

Some potential problems you may encounter are listed below along with the possible solution.

Problem: Audio is heard in only one ear
Solution: Check Mono/Stereo selector for proper setting.

Problem: Communication, but the ANR system is not working
Solution: Make sure the headset is turned on. Check LED. Check to make sure the battery is fresh.

Problem: ANR works but no communications
Solution: Check the headset and intercom volume controls to see if they are set too low.

Problem: Whistling, squealing or cricket sound
Solution: Check to see that the outer foam pad in still in-place in the center of the ear seal. If the
foam pad is missing, check your headset case to see if it has come loose. If not, contact PILOT.

Problem: “Motor boating” or low rumbling sound with headset turned on in a quiet environment
Solution: This could be caused by a small pressure change - possibly caused by opening a cabin
door or by turning your head and causing a leak between your ear headset and the ear seal. Check
your ear seals for wear. Possibly the headsets were stored improperly and the cushions were
squeezed into an abnormal shape. A low battery can also cause this problem.

Pilot Communications USA

70 Maxwell

Irvine, CA 92618

Toll Free: 1-888-Go-Pilot Tel: [phone] Fax: [phone]

www.pilot-usa.com

[email protected]

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