PS Engineering PM1000II Pilot’s Guide - Manual (Page 3)

202-123-0001 3 PM1000II Pilot Guide & User Manual
Section II OPERATION
PM1000II with ISO/ALL (p/n 11922)
1 Pilot Volume Control
2 Pilot Squelch Control
3 Copilot Volume Control
4 Copilot Squelch Control
5 Intercom Mode Switch
6 Power/Transmit indicator
Turn the PM1000II on by rotating pilot's volume control (1). This also en-
gages the automatic fail-safe system. The pilot's volume control does not
control the volume of the aircraft radio, allowing an additional degree of
aircraft radio listening flexibility.
2.1 Adjusting The Volume (1, 3)
The pilot's volume control knob (1) adjusts the loudness of the intercom
and music for the pilot's headset only. It has no effect on aircraft radio vol-
ume level. The copilot's volume control (3) adjusts the volume for the copi-
lot.
In the 11920 (PM1000II with Crew) units, the volume level for both pas-
sengers can be adjusted by a screwdriver adjusted potentiometer located on
the left hand side of the intercom as viewed from the front. It is possible to
adjust the overall output power to the passenger headsets by changing this
potentiometer. Rotating the potentiometer counterclockwise increases the
passenger volume.
2.2 Squelch Control (2, 4)
The PM1000II provides individual VOX circuits for the pilot and copilot.
The ability to adjust the trip level of these VOX circuits (squelch control)
1
2
3
4
5
6