PS Engineering PMA8000SR Pilot’s Guide User Manual

Page 3

202-880-0000

Page

R5 PMA8000-SR Pilot Guide

The PMA8000-SR-has an automatic selector mode. Audio from the selected
transceiver is automatically heard in the headsets and speaker (if selected). You
can check this function by switching from C

1 transmitter to Com 2 transmit-

ter by pressing the C

2 transmitter selector pushbutton. Note that the associ-

ated 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 PMA8000-SR “remembers” the receiver selection, so that when switching
transmitters from C

1 to C

2, if C

2 audio was previously selected,

1 audio will continue to be heard. This eliminates the pilot from having to

switch Com 1 audio back on, after changing transmitters.

When switching from C

1 to C

2 while Com 2 was not previously se-

lected, C

1 audio will be switched off. In essence, switching the mic selector

will not override prior selection of COM receiver audio.

In normal (not split) modes, the PMA8000-SR 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 selected com transmitter.

In TEL mode, the pilot microphone and headphones are connected to the cell
phone. The pilot PTT will switch the pilot mic to the selected com transceiver,
allowing continued aircraft communications.

The copilot will also be able to transmit on the other selected radio with his PTT
as well.

Split Mode

The split mode is activated at any time by press-
ing the C

1 and C

2 XMT buttons at the

same time. This places the pilot on C

1 and

the Copilot on C

Pilot on C

2 and Copilot on C

1 is not pos-

sible.

N O 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.

Note: Split Mode does not turn off Nav, ADF, or AUX selected audio to pilot.
However, the copilot will only hear the selected communications receiver.

Swap Mode (Switch from Com 1 to Com 2 remotely)

With a yoke mounted, 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.