Cub Crafters CC18-180 Pilot Operating Handbook page 191

CUB CRAFTERS SECTION 9.1
CC18-180 SUPPLEMENTS-PM1000II
The center switch (5) is a three-position mode control that
allows the pilot to tailor the intercom function to suit flight
conditions. Regardless of configuration, the pilot will
always hear the aircraft radio.
NOTE
If there is a power failure to the PM1000II, or if the power
switch is turned off, the copilot will not hear the aircraft
radio. Only the pilot is connected directly to the aircraft
radio.
ISO (Up Position): The pilot is isolated from the intercom
and is connected only to the aircraft radios. He will hear
the aircraft radio reception (and side tone during radio
transmissions). Copilot will hear themselves and music
but not the aircraft radio traffic.
ALL (Middle position): All parties will hear the aircraft
radio, transmit side tone from radio, intercom, and music.
However, during any ICS or radio communications, the
music volume automatically mutes. The music volume
increases gradually back to the original level after
communications have been completed. The bottom
switch position is the same as the ALL mode.
9.1.7.4 Power/Transmit Indicator (6)
When the PM1000II is operating, the lamp in the center
will glow green. When either pilot pushes a radio
microphone key (push to talk, or PTT), the indicator will
change to red signifying radio transmission. The aircraft
radio side tone will be presented to the intercom, and
heard by the same people as the aircraft radio receiver
audio. Only the pilot pressing a PTT will be heard on the
radio. Other microphones will be inhibited.
REPORT TC10000AFM
Issued: 5/31/05
Date of revision: 12/06/05 Page number 9-1-5