PS Engineering PMA7000M-S, Installation And Operation Manual, Page: 24 / 36

PS Engineering
PMA7000M-S Series Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-070-0004 Page 3-3 Rev. 4, Oct.200-070-0006 Page 3-3
system, such as the Trimble 3100 D. Placing the mic selector in TEL placed the pilot mi-
crophone and headphones on the cellphone. The pilot PTT will switch the pilot mic to the
COM 1, and allow continued aircraft communications as well.
NOTE: Placing the mic selector switch in the TEL position will disable pilot and copilot
intercom, as the intercom circuit is transferred to the telephone use. In crew or ISO mode,
placing the switch in TEL mode removes the passengers access to the telephone.
3.4.1 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. When "Swap Mode" is active, an an-
nunciator in the lower right corner of the unit will illuminate, indicating that the Mic Se-
lector switch position is no longer current. To cancel "Swap Mode," the pilot may either
press the yoke mounted switch again, or turn the Mic Selector Switch to the Com that is
active.
3.5 Split Mode
Turning the rotary switch to C
OM
1/C
OM
2 places the PMA7000M-S into "Split Mode."
This places the pilot on Com 1 and the copilot on Com 2. An example of this useful fea-
ture is when the pilot may want to talk to Air Traffic Control, while the copilot may be
speaking to Flight Watch. Although this mode has limitations (see below) we believe you
will find this to be a useful feature.
Switching to Com 2/Com l will reverse the “Split Mode” radio selection. The pilot will be
on Com 2 and the copilot will be on Com 1.
Note :
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 other (Nav, ADF, etc.) selected audio to pilot. However, the
copilot will only hear the selected communications receiver.
3.5.1 Split Mode ICS
In split mode, the pilot and copilot are usually isolated from each other on the intercom,
simultaneously using their respective radios. Depressing the
ICS button in Split Mode will
activate VOX intercom between the pilot and copilot positions. This permits intercommu-
nication when desired between the crew. Pressing the ICS button again disables this crew
intercom function.