PS Engineering PMA8000MP3 Pilot’s Guide - Manual (Page 8)

Page 8 Revision 6 PMA8000B MP3
cause the marker audio to mute for that beacon. The next beacon re-
ceived will re-activate the audio.
Telephone (TEL) (9)
The TEL mode serves as a full duplex interface and distribution for
telephone systems such as portable cellular phones with earpiece
jacks. Pressing the TEL button connects the telephone to the users as
follows:
In ALL intercom mode, all crew and passengers will be heard on the
phone when they speak. Com and other selected radio audio is also
heard in the headsets. If the pilot or copilot pushes the radio PTT,
their mic will be transferred to the selected Com radio. The telephone
party will not hear ATC communications, and vice versa.
In CREW mode, only the pilot and copilot are
connected to the telephone. Passengers will not
hear the telephone. The pilot and copilot will also
have transmit capability on the other selected
transceiver.
In ISO intercom mode, when the PMA8000B
MP3 is in the TEL mode, the pilot position is in
the "Phone Booth." Only the pilot will hear the telephone, and only he
will be heard. He will also have access to Com 1 or 2, and will trans-
mit on that radio using the PTT. All selected audio is provided to the
pilot.
In cases where the cellular telephone doesn’t provide sidetone, the
audio panel can be configured, by holding the TEL and ADF buttons
for more than one second, to create sidetone for you.
Split Mode
In the split mode, the pilot is on Com 1, while the copilot is able to
transmit and receive independently 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 have the pilot on Com 2 and copilot on Com 1 in split
mode.
NOTE: Due to the nature of VHF communications signals, and
the size constraints in general aviation aircraft, it is probable