PS Engineering PMA450 Pilot’s Guide - Manual (Page 12)

Page 12 202-450-0000 PMA450 Pilot Guide Rev. 3
NOTE
Because the cell phone uses an intercom circuit, all stations on that circuit
will lose intercom capability when the cell phone is in use. Intercom conver-
sations will still be present if the cell phone provides sidetone, or if the audio
panel is configured for telephone sidetone.
PS Engineering does not guarantee compatibility with personal cellular tele-
phones.
Cellular telephone sidetone
Some cell phones do provide sidetone, and when combined with audio panel
sidetone audio distortion may occur. In
PMA450 Telephone sidetone can be en-
abled or disabled on the Telephone menu
which is active when a call is in progress.
Internal Recorder and playback
The PMA450 comes equipped with an internal recorder. This digital system
stores the last incoming audio from the radio you have selected for transmit.
It can store as many as 8 incoming messages, and up to 45 seconds of audio.
The pilot and copilot hear the playback.
Recording is automatic.
To play back the last recorded message, press and hold the COM Receive
pushbutton associated with the selected radio trans-
mitter for about one 1 second. You can either wait
for the message to finish playing before accessing
the prior message, or cancel the current playback
and step backward. To cancel the playback, press
and hold the COM receive playback button for two
seconds. The next time the button is pressed for 1
second, the next earlier message will be heard.
The screen displays a status message to indicate that playback is in progress.
The playback will stop whenever there is more incoming selected COM au-
dio, and the message can be replayed from the beginning by pressing the
selected Com Receive button again
for 1 second.
1.1 User Setup menus
The PMA450 has several user adjust-
able functions accessible from a setup
menu.
During the unit boot up process, hold
the lower line select button until the setup screen appears. This shall place