Ps-engineering PDA360EX Installation Manual User Manual download pdf (Page 32)

PS Engineering Inc. ®

PAR100EX Audio Selector Panel and Intercom System

Installation and Operator’s Manual

200-760-0000 Page 3-4 Rev. 12, Jan. 2014

When MON is active, the receiver is tuned to the Standby frequency and passes received audio on that

channel. When the Active frequency receives a signal, the signal from the active frequency is automati-

cally provided to the audio.

Both active and standby frequencies are monitored at the same time for a signal. A signal can be received

on either the active or the standby frequency.

While receiving a signal on the active frequency - the standby channel is NOT monitored.

While receiving a signal on the standby frequency - the active channel is periodically monitored. If a sig-

nal is found on the active frequency the M760REM will revert to the active frequency. After a signal has

been received, the M760REM will return to monitoring both frequencies.

It will be important to remember which frequency is active and which is standby, to avoid answering a

transmission on the standby frequency by transmitting a response on the active frequency.

NOTE:

Although the M760REM can select and receive on the VHF NAV frequencies (108.00 to 117.95 MHz),

transmission is inhibited.

3.7 Intercom Operation (8)

3.7.1 IntelliVox® VOX-Squelch

No manual adjustment of the IntelliVox® squelch control is possible. Through individual signal proces-

sors, the ambient noise appearing in all four microphones is constantly being sampled. Non-voice signals

are blocked. When someone speaks, only their microphone circuit opens, placing their voice on the inter-

com. The intercom can be configured for high noise environment by internal switching. See § 2.10 for

more information.

The system is designed to block continuous tones; therefore people humming or whistling in monotone

may be blocked after a few moments.

For consistent performance, any headset microphone must be placed within ¼-inch of your lips, prefera-

bly against them. (ref: RTCA/DO-214, 1.3.1.1 (a)).

NOTE

It is also a good idea to keep the microphone out of a direct wind path. Moving your head through a vent

air stream may cause the IntelliVox® to open momentarily. This is normal.

The IntelliVox® is designed to work with normal aircraft cabin noise levels (70 dB and above). It loves

airplane noise! Therefore, it may not recognize speech and clip syllables in a quiet cabin, such as in the

hangar, or without the engine running. This is normal.

For optimum microphone performance, PS Engineering recommends installation of a Microphone Muff

Kit from Oregon Aero (1-800-888-6910). This will not only optimize VOX performance, but will improve

the overall clarity of all your communications.

Table 3-1 Mic Muff ™ Part Numbers

Manufacturer Model Mic Muff™ Part Number

Bose Dynamic

Electret

M87 Dynamic

90010

90015

90020

David Clark H10-30

H10-20, H10-40

H10-13.4

90010

90015

Lightspeed All 90015

Peltor 7003

7004

90010

90015

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