Bose TriPort TTH Manual, Operating & Maintenance - Page 25

Browse online or download pdf Manual, Operating & Maintenance for Headsets Bose TriPort TTH. Bose TriPort TTH 25 pages. Tactical headsets

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Harmonic Distortion

The harmonic distortion of the earphone assembly in Low Power and Intercom

Modes shall not exceed 5% for a 0± 0.1dBV input at 500 Hz and it shall not

exceed 10% with the input adjusted for an output of 100dB SPL at 500 Hz and

then swept from 300 Hz to 4500 Hz. The harmonic distortion of the earpohone

assembly in Unpowered Mode shall not exceed 5% for a -6± 0.1dBV input at 500

Hz and it shall not exceed 10% with the input adjusted for an output of 94dB SPL

at 500 Hz and then swept from 300 Hz to 4500 Hz.

Talk Through Circuit (TTC)

The headset shall incorporate a talk-through circuit to permit monitoring of the

ambient sound field and direction finding. When mounted on a simulated real

head fixture (mannequin), at 22

C, 50% RH the TTC shall produce gain of 0±

6dB when measured in the 500 Hz octave band and an acoustic frequency

response within 0± 8dB when measured in one octave frequencies between 300

and 4500 Hz and corrected for diffuse field response of the fixture.

The talk-through circuit shall limit direct earcup output to between 86dB(A) SPL

maximum and 72dB(A) minimum with the output corrected for the diffuse field

response of the fixture.

Boom Microphone Sensitivity

The dynamic boom microphone sensitivity shall be -56±4 dBm @ 1kHz re. 103dB

SPL.

SIZE

FSCM

CLASS

DWG NO.

SHEET

REV.

Framingham, MA 01701-9168

32108

273139

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