PS Engineering PMA5000EX Pilot’s Guide - Manual (Page 3)

202-550-0100 Page 3 Jan 2010 PMA5000EX Pilot Guide
on the selected radio. The PMA5000EX automatically selects the re-
ceiver, and will not allow you to transmit on a radio without being
able to hear the receive audio.
If you want to listen to the other radio, press the upper button, in the
RCV (receive) section.
If the Monitor function is activated, the audio from this radio will be
muted when the primary radio (selected for transmit) is receiving a
signal.
When you have a com selected for receive, it will stay selected until
you manually deselect it. For instance, if you set COM 1 for clearance
delivery, and COM 2 for Ground Control, transmit on COM 1 to get
clearance, but want to contact ground you can switch between trans-
mitters without having to re-select the receivers. In essence, switching
the mic selector will not override prior selection of COM receiver
audio
Unless the audio panel is in “split” mode, the PMA5000EX gives pri-
ority to the pilot’s radio Push-To-Talk (PTT). If the copilot it trans-
mitting and the pilot presses his Push-To-Talk (PTT), the pilot is then
heard over the radio.
In Telephone (§)mode, the pilot microphone and headphones are con-
nected to the cell phone, but you still hear the COM radios selected.
The pilot PTT will switch the pilot mic to the selected com trans-
ceiver, and allow continued aircraft communications to continue. (See
Page 4—Telephone—for more details)
The copilot will also be able to transmit on the
other selected radio with his PTT.
Split Mode
In the split mode, the pilot is on COM 1, while
the copilot is able to transmit and receive inde-
pendently on COM 2. Activating the split
mode is straightforward — push both the
COM 1 and COM 2 XMT (bottom) buttons at
the same time. All four indicators will come
on. Select one of the com XMT buttons to exit the split mode.
It is not possible to split the copilot on COM 1, and the pilot on COM
2.
When the split mode is activated, the intercom between the pilot and
copilot is inhibited, although the passengers can still talk among