PS Engineering PMA6000B User Manual
Page 20
PS Engineering
PMA6000B Audio Selector Panel and Intercom System
Installation Manual
200-066-0200
Page 3-5
Rev 6, Feb. 2013
The White lamp, labeled "I” is the Airway/Inner marker and has a 3000 Hertz 'dot' tone. The lamp and
tone will be keyed at a rate of six times per second.
The audio from the Marker Beacon Receiver can be heard by selecting the "M" push-button switch.
A 3-position switch is used to set the receiver sensitivity and to test the indicator lamps. Use "H
IGH
" sensi-
tivity initially. This allows you to hear the outer marker beacon about a mile out. Then select the “L
OW
”
sensitivity to give you a more accurate location of the Outer Marker. The momentary down switch position
is labeled "T
EST
" and illuminates all three lamps simultaneously to assure the lamps are in working order.