Vertex Standard VX-800 Service Manual page 5

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:
The current operating channel; and
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 someone is speak-
ing.
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.
High/Low Power
Press the assigned Soft key or switch the Toggle
Switch to the assigned position to set the radio's
transmitter to the "Low Power" mode, thus extend-
ing battery 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
channel systems (separate receive and transmit fre-
quencies, utilizing a "repeater" station). The Talk
Around feature 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 trans-
mit frequencies are already the same.
Operating Manual Reprint
Note that your dealer may have made provision for
"Talk Around" channels by programming "re-
peater" and "Talk Around" frequencies on two ad-
jacent channels. 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 Trans-
mit 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 sig-
nal from an apparently nearby station is being re-
ceived. 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 necessary 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
transceiver on your belt). Press the assigned Soft key
again or switch the Toggle Switch to the other
Positionreturn 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 op-
tional voice encryption unit temporarily, for use
when an incorrect setting of (or failure in) the en-
cryption system at one end of the communication
path has made it impossible to talk to the other sta-
tion.
Remember that disabling the encryption will mean
that your transmissions are no longer secure. Return
to the encrypted mode as soon as possible, and do
not discuss any critical or confidential information
while in the non-encrypted mode of operation.
Lock
Switch the Toggle Switch to lock the top-panel keys;
this can be enabled to prevent radio settings from
being disturbed.
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