PS Engineering PAR200 - Manual (Page 30)

PS Engineering Inc. ®
PAR200 Audio Selector Panel, COM radio Controller and Intercom System
Installation and Operator’s Manual
200-228-0000 Page 3-6 Rev. 4, Dec. 2013
Figure 3-4 Cockpit Speaker Control
3.6.6 Monitor Mode (when PAR200 is COM 1 or stand alone only)
If the TY91 is interface as a stand alone COM or as COM 1, the radio’s standby frequency monitor can be
used. To activate the monitor mode, press and hold the C2 RCV button until “MON” appears in the dis-
play.
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 TY91 will revert to the active frequency. After a signal has been
received, the TY91 will return to monitoring both frequencies.
The standby monitoring frequency sends an audible “ticking” to make you aware which is the active &
standby. It will be important to remember which frequency is active and which is standby, to avoid an-
swering a transmission on the standby frequency by transmitting a response on the active frequency.
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.
Push/hold for >1
sec.