PS Engineering PDA360EX Installation Manual - Manual (Page 30)

PS Engineering Inc. ®
PAR100EX Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-760-0000 Page 3-2 Rev. 12, Jan. 2014
separately in the event of a problem in the audio panel portion, or audio panel power.
If the audio panel is turned off by the left knob (or the audio panel breaker is opened), the display will
indicate “Push radio knob within 6 (countdown”) seconds to keep radio on” If the knob is not pushed, the
com radio will also turn off, but if the data knob is pushed within, the radio display, volume and frequency
control will remain active.
3.3 Communications Transmit (XMT) Selection (2)
The two buttons C1 and C2 (# 2) in the XMT section control which communications radio
is selected for transmit. The top row of pushbuttons (# 3) allows selection of the receiver
audio. Push the lower button to select the desired COM transmitter. A green LED above
the button illuminates to indicate that the audio is selected.
The PAR100EX-Series has an automatic com receiver selector system. Audio from the
selected transceiver is automatically heard in the headsets and speaker (if selected). You
can check this function by switching from Com 1 transmitter to Com 2 transmitter by pressing the C
OM 2
transmitter selector pushbutton. See that the associated Com 2 receive pushbutton indicator light that is
located immediately above the Com 2 transmitter pushbutton turns green. This guarantees that the pilot
will always hear the audio from the transceiver selected for transmit.
The PAR100EX “remembers” the receiver selection, so that when switching transmitters from C OM 1 to
C OM 2, if C OM 2 audio was previously selected, C OM 1 audio will continue to be heard. This eliminates
the pilot having to switch Com 1 audio back on, after changing transmitters.
When switching from C OM 1 to C OM 2 while Com 2 was not previously selected, C OM 1 audio will be
switched off. In essence, switching the mic selector will not override prior selection of COM receiver au-
dio.
In normal (not split) modes, the PAR100EX gives priority to the pilot’s radio Push-To-Talk (PTT). If the
copilot it transmitting, and the pilot presses his PTT, the pilot’s microphone will be heard over the se-
lected com transmitter.
3.3.1.1 Split Mode
The split mode can be activated at any time by pressing the C1 and C2 XMT buttons at the same time.
This places the pilot on C OM 1 and the Copilot on C OM 2.
Pilot on C OM 2 and Copilot on C OM 1 is not possible.
NO T E
Due to the nature of VHF communications signals, and the size constraints in general aviation aircraft, it
is probable that there will be some bleed-over in the Split mode, particularly on adjacent frequencies. PS
Engineering makes no warranty about the suitability of Split Mode in all aircraft conditions.
3.3.1.2 Swap Mode (Switch from Com 1 to Com 2 remotely)
With a yoke mounted, normally open momentary switch, the pilot can change from the current Com
transceiver to the other by depressing this switch. To cancel "Swap Mode," the pilot may either press the
yoke mounted switch again, or select a different Com with the XMT buttons.
3.4 COM Audio Selector (3)
Communication audio from the other radio, not selected for transmit, can be heard by pressing the associ-
ated RCV button. You will always hear the audio from the selected transceiver.
In SPLIT mode, only the pilot will hear selected navigation audio (A1 & A2).
3.5 Navaid Audio selection (4)
VHF Navigation receiver audio is selected through two momentary, push-button, backlit switches.
The users can identify which receivers are selected by noting which green LEDs are lit above the button.