Specifications
Headsets
Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . 104dB re .0002 microbar @ 1000 Hz, 1 mW
Frequency Response . . . . . . . . . . . . . . . . . . . . . . . 100-17,000 Hz +5 dB in 6 cc coupler
Impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150 ohms nominal
Impedance (FH703) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300 ohms nominal
Weight without cable (FH701, 702, 704) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16.9 oz.
Weight without cable (FH703) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.4 oz.
Weight without cable (UH701, 702) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15.9 oz.
NRR (all except FH703) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24dB
Microphone
DC Bias Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-16 volts, not polarity sensitive
Source Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220 to 2200 ohms
Output Voltage . . . . . . . . . . . . . . . . . . . . . . . . . 370 mV @ 114 SPL re .0002 microbar
Frequency Response . . . . . . . . . . . . . Optimized for speech clarity and noise reduction
Max. Amb. Noise Level . . . . . . . . . . . . . . . . . . . . . . . . . . . 125dB SPL re .0002 microbar
See www.flightcom.net for replacement parts.
Intercom Communication
The
FH701, 702, 703
and the
UH701, 702
headsets have a yellow PTT button on the ear
dome. Press and release this button to activate the microphone for intercom communication.
Press and release the button again to turn the microphone off.
The
FH704
headset has a red momentary PTT button on the ear dome. Press and hold
this button to activate the microphone for intercom communication. Release the button
to turn the microphone off.
Caution
This Flightcom headset provides 24dB noise attenuation when properly fitted to the user
and worn as instructed. Any modification to the hearing protector such as drilling holes in
the dome, painting or reforming the headband spring, will negatively impact the hearing
protector’s performance and hearing damage could occur.
Federal law requires the following statements:
“Although hearing protectors can be recommended for protection against the harmful
effects of impulsive noise, the Noise Reduction Rating (NRR) is based on the attenuation
of continuous noise and may not be an accurate indicator of the protection attainable
against impulsive noise such as gunfire.”
“The level of noise entering a person’s ear, when a hearing protector is worn as directed,
is closely approximated by the difference between the A - weighted environmental noise
level and the NRR.
EXAMPLE: 1. The environmental noise level as measured at the ear is 92dBA.
2. The NRR is 24dB.
3. The level of noise entering the ear is approximately equal to 92dB (A) - NRR.
CAUTION: For noise environments dominated by frequencies below 500 Hz the
C - weighted environmental noise level should be used.”
Always wear a hearing protector in areas that have been identified as high noise locations.
Care & Maintenance
Repairs or replacement of the headset should be immediately sought if you see any defect
such as holes or cracks in the ear domes, ear seals or headband.
Body oils, perspiration and hair care products will, over time, affect the ear seals. Inspect
the ear seals frequently for signs of wear and replace at approximate 6 month intervals
along with the mic muff (cover).
Do not remove the foam speaker cover.
Never remove the headset from the aircraft jack by pulling on the cord. The
headset should be unplugged at the jack location by pulling the headphone plug
from the jack.
One-Year Limited Warranty to the Original Purchaser
Sonetics Corporation warrants to the original purchaser of its products, that they will be free from
defects in materials and workmanship, under normal and proper use, for the period of one year from
date of purchase. Sonetics Corporation will repair or replace, at its option, any parts showing factory
defects during this warranty period, subject to the following provisions. This warranty applies only to a new
product which has been sold through authorized channels of distribution. All work under warranty
must be performed by Sonetics Corporation. All returned products must be shipped to our address,
freight prepaid, accompanied by a dated proof of purchase. The purchaser voids this warranty if he,
she or others attempt to repair, service or alter the product in any way. This warranty does not apply
in the event of accident, abuse, improper installation, unauthorized repair, tampering, modification,
fire, flood, collision, or other damage from external sources, including damage which is caused by user
replaceable parts (leaking batteries, etc.). This warranty does not extend to any other equipment or
apparatus to which this product may be attached or connected. The foregoing is your sole remedy
for failure in service or defects. Sonetics Corporation shall not be liable under this or any implied
warranty for incidental or consequential damages, nor for any installation or removal costs or other
service fees. This warranty is in lieu of all other warranties, express or implied, including the warranty
of merchantability or fitness of use, which are hereby excluded. To the extent that this exclusion is not
legally enforceable, the duration of such implied warranties shall be limited to one year from date of
purchase. No suit for breach of express or implied warranty may be brought after one year from date
of purchase.
Warranty
Wipe headset and ear seals with a mild soap and water mixture only.
NEVER IMMERSE
ANY PART OF THE HEADSET IN WATER.
Although the microphone is water resistant, to
ensure a longer life, keep the microphone away from moisture, when possible.
Do not store in direct sunlight or in areas of high temperature.
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