Operating Manual

EVX-539 OpErating Manual
17
advancEd opEratIon
sql oFF
Press, (or press and hold), the assigned
PF
key to open
the SQL to hear background noise (unmute the audio).
sql oFF -momEntarIlY-
Opens the SQL to hear background noise (unmute the
audio) while pressing the assigned
PF
key.
sql sEt
You can manually adjust the squelch level using this
function:

Press, (or press and hold), the assigned
PF
key. A
tone will sound, and the current squelch level will
appear on the display.

Press the
SIDE-1
/
SIDE-2
buttons (or
[
A
]
/
[
B
]
keys) to select the desired squelch level. Available
selections are “SQLLV OP (Open)”, “SQLLV
TH (Threshold)”, “SQLLV NM (Normal)” and
“SQLLV TI (Tight)”.

Press the
[
D
]
key to store the new setting. The
display indicates “- SET -” briey, then reverts to
the normal channel indication.
You may cancel the new setting by pressing the
[
C
]
key. In this case, the display indicates “-
CANCEL -” briey.
BEEp oFF
Press, (or press and hold), the assigned
PF
key, the
display indicates “BEEP OFF” briefly, and disable
the radio beeps and the channel announcement (if ac-
tivated) temporarily. Again press, (or press and hold),
the assigned
PF
key, the display indicates “BEEP
ON” briey, and enable the radio beeps and the chan-
nel announcement.
aF mInImum volumE
Press, (or press and hold), the assigned
PF
key to
reduce the audio output to the (lower) level pro-
grammed by your Vertex Standard dealer.
cH announcEmEnt
Press, (or press and hold), the assigned
PF
key to se-
lect the channel change conrmation between “beep”
(indicates “BEEP” briey) and “announcement” (in-
dicates “ANNOUNCE” briey).
FCC ID: AXI11154620
IC: 10239A-11154620