User Manual

PS Engineering Inc. ®
PAR200A Audio Selector Panel, COM radio Controller and Intercom System
Installation and Operator’s Manual
200-228-0200 Page 3-5 June 2014
Figure 3-7 Monitor indication
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 automatically
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 signal
is found on the active frequency the TY91 will revert to the active frequency. After a signal has been re-
ceived, 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 answer-
ing a transmission on the standby frequency by transmitting a response on the active frequency.
3.7.4 Tuning 8.33 kHz channel Spacing
Hold the “MUTE” button on the left side for 3 seconds, which will toggle between either 25 kHz spacing or
8.33 kHz spacing. This will be displayed on the LCD screen.
Figure 3-8 Channel Spacing switching
3.7.4.1 Channel Assignment under 8.33 kHz spacing:
The following table provides an example of the 8.33 Channel assignments as displayed on the PAR200A,
when in the 8.33 mode.
Bandwidth (kHz)
Frequency
Displayed
25
118.00000
118.000
8.33
118.00000
118.005
8.33
118.00833
118.010
8.33
118.01666
118.015
25
118.02500
118.025
8.33
118.02500
118.030
8.33
118.03333
118.035
8.33
118.04166
118.040
25
118.05000
118.050
8.33
118.05000
118.055
8.33
118.05833
118.060
8.33
118.06666
118.065