PS Engineering PMA5000EX Installation Manual - Manual (Page 13)

PS Engineering
PMA5000EX Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-550-0100 Page 2-7 Rev. 1 Jan. 2011
Figure 2-2- PMA5000EX Adjustments, top cover
Figure 2-3 – Unswitched 3 Audio Level (bottom cover removed)
2.6.1 Microphone Gain Selection
In very high noise environments (such as open cockpit, etc.) the PMA5000EX can be switched to a lower
microphone gain by configuring internal switches.
Contact PS Engineering for more information.
2.7 Communications Antenna Installation Notes
For best results while in Split Mode, it is recommended that the one VHF communications antenna is lo-
cated on top of the aircraft while the other communications antenna is installed on the bottom. Any an-
tenna relocation should be accomplished in accordance with AC 43.13-2B, and /or aircraft manufacturers’
recommendations.
WARNING
It is probable that radio interference will occur in the split mode when the frequencies of the two ai r-
craft radios are adjacent, and/or the antennas are physically close together. PS Engineering makes
no expressed or implied warranties regarding the suitability of the PMA5000EX in Split Mode.
Front
of unit
NOTE:
If top cover is removed
for ANY reason, you
MUST replace the cover
screws with the proper
length, otherwise damage
will result.
Shorter Screw