Vertex Standard VX-900 - Manual (Page 6)

6
Operating Manual Reprint
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DVANCED
O
PERATION
Description of Operating Functions
Channel Scan
The Scanning feature is used to monitor multiple sig-
nals programmed into the transceiver. While scanning,
the transceiver will check each channel for the pres-
ence of a signal, and will stop on a channel if a signal
is present.
One key or switch may be assigned to the Scan func-
tion, as follows:
r One of the Soft keys may be assigned for Scan
operation; or
r The TOGGLE switch may have one position as-
signed to the Scan function.
To activate scanning:
¦ Press the assigned Soft key, or set the TOGGLE
switch to the assigned position.
¦ The scanner will search the channels, looking for
active ones; it will pause each time it finds a chan-
nel on which someone is speaking.
To stop scanning:
¦ Press the assigned Soft key, or set the TOGGLE
switch to a different position.
¦ Operation will revert to the channel to which the
CH knob is set.
Note: Your dealer may have programmed your radio
to stay on one of the following channels if you press
the PTT switch during scanning pause:
£
Current channel (“Talk Back”)
£
“Last Busy” channel
£
“Priority” channel
£
“Home” channel
£
“Scan Start” channel
Dual Watch
The Dual Watch feature is similar to the Scan feature,
except that only two channels are monitored:
r The current operating channel; and
r The “Priority” channel.
To activate Dual Watch:
¦ Press the assigned Soft key, or set the TOGGLE
switch to the assigned position.
¦ The scanner will search the two channels; it will
pause each time it finds a channel on which some-
one is speaking.
To stop Dual Watch:
¦ Press the assigned Soft key, or set the TOGGLE
switch to a different position.
¦ Operation will revert to the channel to which the
CH knob is set.
High/Low Power
Press the assigned Soft key or switch the Toggle
switch to the assigned position to set the radio’s trans-
mitter to the “Low Power” mode, thus extending bat-
tery life. Press the assigned Soft key again or switch
the TOGGLE switch to the other Position to return to
“High Power” operation when in difficult terrain.
Talk Around
Press the assigned Soft key or switch the TOGGLE
switch to the assigned position to activate the Talk
Around feature when you are operating on duplex chan-
nel systems (separate receive and transmit frequencies,
utilizing a “repeater” station). The Talk Around fea-
ture allows you to bypass the repeater station and talk
directly to a station that is nearby. This feature has no
effect when you are operating on “simplex” channels,
where the receive and transmit frequencies are already
the same.
Note that your dealer may have made provision for
“Talk Around” channels by programming “repeater”
and “Talk Around” frequencies on two adjacent chan-
nels. If so, the key may be used for one of the other
Pre-Programmed Functions.
TX Save Disable
Press the assigned Soft key or switch the TOGGLE
Switch to the assigned position to disable the Transmit
Battery Saver, if you are operating in a location where
high power is almost always needed.
The Transmit Battery Saver helps extend battery life
by reducing transmit power when a very strong signal
from an apparently nearby station is being received.
Under some circumstances, though, your hand-held
radio may not be heard well at the other end of the
communication path, and high power may be neces-
sary at all times.
LCD Invert
Press the assigned Soft key or switch the TOGGLE
switch to the assigned position inverts the LCD dis-
play to backward-facing readout (the backward dis-
play is convenient for viewing when wearing the trans-
ceiver on your belt). Press the assigned Soft key again
or switch the TOGGLE switch to the other Position-
return the LCD display to frontward-facing readout.
Encryption Disable
Press the assigned Soft key or switch the TOGGLE
switch to the assigned position to turn off the optional
voice encryption unit temporarily, for use when an in-
correct setting of (or failure in) the encryption system
at one end of the communication path has made it im-