Vertex Standard VX-4500 Series User manual

VX-4500
VX-4600
Operating Manual
VX-4600VX-4500
Six Programmable Function Keys
5-tone Encode/Decode
ARTS (Auto Range Transpond System)
Dimmer/Lamp
Horn Alert
Public Address
Lock
Beep OFF
Encryption
Scan
Group Scan
Dual Watch
FM-Scan (Follow-Me Scan)
TA Scan
VOX
prOgraMMable FunctiOns
/
Features
(: VX-4600
only
)
2-tone Encode/Decode
MDC-1200® Encode/Decode
REC & PLAY (Requires DVS-8)
Clear Voice
AF Min Volume
Talk Around
Emergency
Lone Worker
Direct Channel Entry
Code Up/Down
Code Set
Speed Dial
DTMF Code Set
ID Check
TX Save Disable

Unsafe Radiation Distance
Congratulations!
You now have at your ngertips a valuable communications tool: a Vertex Stan-
dard two-way radio! Rugged, reliable and easy to use, your Vertex Standard radio
will keep you in constant touch with your colleagues for years to come, with negli-
gible maintenance downtime.
Please take a few minutes to read this manual carefully. The information presented
here will allow you to derive maximum performance from your radio.
We’re glad you joined the Vertex Standard team. Call on us anytime, because com-
munications is our business. Let us help you get your message across.
Notice !
There are no owner-serviceable parts inside the transceiver. All service jobs
must be referred to an authorized Vertex Standard Service Representative.
Consult your Authorized Vertex Standard dealer for installation of optional
accessories.
Safety/WarNiNg iNformatioN
WARNING - DO NOT operate the VX-4500/-4600 radio when any
person(s) (bystanders) outside the vehicle are within the distances shown in
the chart at the bottom of this section.
Safety Training information:
Antennas used for this transmitter must not exceed an antenna gain of 3
dBi. The radio must be used in vehicle-mount congurations with a maxi-
mum operating duty cycle not exceeding 50 %, in typical Push-to-Talk con-
gurations.
This radio is restricted to occupational use, work related operations only
where the radio operator must have the knowledge to control the exposure
limits of passengers and bystanders by maintaining the minimum separa-
tion distance shown below.
Failure to observe these restrictions will result in exceeding the FCC RF
exposure limits.
Antenna Installation:
For rear deck trunk installation, the antenna must be located at least the fol-
lowing distance away from rear-seat passengers in order to comply with the
FCC RF exposure requirements.
For roof top installations, the antenna must be placed in the center of the
roof.
VHF Model UHF Model
1.85 Feet (0.56 m)2.36 Feet (0.72 m)

VX-4500/-4600 SerieS Operating Manual
1
IntroductIon
The VX-4500/-4600 Series are full-featured FM transceivers designed for exible
mobile and base station business communications in the VHF or UHF Land Mobile
bands. These transceivers are designed for reliable business communications in a
wide variety of applications with a wide range of operating capability provided by
their leading-edge design.
The VX-4500 allows up to 8 memory channels. The VX-4600 allows up to 512
memory channels which can each be programmed with an 8-character Alpha-
Numeric Tag.
Important channel frequency data is stored in EEPROM and ash memory on the
CPU, and is easily programmable by Vertex Standard dealers using a personal
computer and the Vertex Standard Programming Cable and CE115 Software.
The pages which follow will detail the many advanced features provided in the
VX-4500/-4600 Series transceiver. After reading this manual, you may wish
to consult with your Network Administrator regarding precise details of the
conguration of this equipment for use in your application.
For North American Users Regarding 406 MHz Guard Band
The U.S. Coast Guard and National Oceanographic and Atmospheric
Administration have requested the cooperation of the U.S. Federal
Communications Commission in preserving the integrity of the protected
frequency range 406.0 to 406.1 MHz, which is reserved for use by
distress beacons. Do not attempt to program this apparatus, under any
circumstances, for operation in the frequency range 406.0 - 406.1 MHz if
the apparatus is to be used in or near North America.
VX-4500
VX-4600

VX-4500/-4600 SerieS Operating Manual
2
controls & connectors
(VX-4500)
Front Panel
Important! - All buttons located on the Front Panel are Programmable Function
(PF) keys, congured according to your network requirements and programmed
by your Vertex Standard dealer. The instructions below describe a typically-cong-
ured radio.
 PWR ( ) Button
Press and hold in this button for 2 seconds to toggle the transceiver’s power
“on” and “off”.
 VOL Knob
Turn this control clockwise to increase the volume.
 Microphone Jack
Connect the microphone plug to this jack.
 [P1] - [P4] Keys (Programmable Function Keys)
These keys can be set up for special applications, such as High/Low power
selection, Monitor, Talk-Around, etc., as determined by your network require-
ments and programmed by your Vertex Standard dealer.
 []/[] Keys (Programmable Function Keys)
In the factory default, pressing either key changes the current channel.
 Channel Number Indicator
Indicates the operating channel.
 
  

VX-4500/-4600 SerieS Operating Manual
3
controls & connectors
(VX-4500)
transceIVer status IndIcator
 Transceiver Status Indicator
The “A” and “B” indicators show current transceiver status, which can be cus-
tomized via programming by your Vertex Standard dealer to meet your com-
munications/network requirements. The possible “A” and “B” displays are
explained below.
 TX/BUSY Indicator
Indicates transceiver’s Transmit/Receive Status.
status
IndIcator descrIptIon
A B
MONI This indicator is illuminated constantly when the sig-
naling feature is disabled. The indicator blinks while
the audio is passing normally.
SCAN CH Illuminates the indicator when the scan enabled
channel is recalled
PRI-1 Illuminates the indicator when the Priority-1 channel
is activated
Low Power Illuminates the indicator when the radio’s transmitter
is set to the “Low Power” mode
TA (Talk Around)Illuminates the indicator when the “Talk Around”
function is activated.
Encryption Illuminates the indicator when the “Voice Scrambler”
function is enabled.
Emergency Illuminates the indicator when the “Emergency” fea-
ture is activated.
Horn Alert Illuminates the indicator when the “Horn Alert” fea-
ture is activated.
PA (Public Address)Illuminates the indicator when the radio is turned to
a PA amplier.
Lock Illuminates the indicator when the “Lock” feature is
activated.
ACC2 Illuminates the indicator when the output port “2” on
the Accessory Connector is turned to “ON”.
RFC Illuminates the indicator when the radio is in the
“Ready for Communication” condition while operat-
ing with the 2-Tone or 5-Tone signaling.
REC/PLAY Illuminates the indicator when the incoming mes-
sage is recorded or storage message is played
back.

VX-4500/-4600 SerieS Operating Manual
4
controls & connectors
(VX-4600)
Front Panel
Important! - All buttons located on the Front Panel are Programmable Function
(PF) keys, congured according to your network requirements and programmed
by your Vertex Standard dealer. The instructions below describe a typically-cong-
ured radio.
 PWR ( ) Button
Press and hold in this button for 2 seconds to toggle the transceiver’s power
“on” and “off”.
 VOL Knob
Turn this control clockwise to increase the volume.
 Microphone Jack
Connect the microphone plug to this jack.
 [P1] - [P4] Keys (Programmable Function Keys)
These keys can be set up for special applications, such as High/Low power
selection, Monitor, Talk-Around, etc., as determined by your network require-
ments and programmed by your Vertex Standard dealer.
 []/[] Keys (Programmable Function Keys)
In the factory default, pressing either key changes the current channel (and
displayed channel number or name). Holding in either key for more than 1.5
second causes the radio to begin stepping (repeatedly) upward or downward
through the channels.
 
 



VX-4500/-4600 SerieS Operating Manual
5
 LCD (Liquid Crystal Display)
The display includes a 8-character alpha-numeric section showing Channel
name tags/identity information and error messages, and an upper icon row dis-
playing feature status (see below).
 TX/BUSY Indicator
Indicates transceiver’s Transmit/Receive Status.
controls & connectors
(VX-4600)
“Call” indicator
“Dual Watch” is activated
Low Transmit Power Mode “ON”
: “Scan” is enabled
: “Priority Scan” is activated
“Talk-Around” is enabled
Receiver Monitor
“Group Scan” is enabled
“AUX A” Port is activated
8 Character Alpha-numeric Display
“Encryption” is enabled Group Number
Priority-2 Channel
“Audio Compander” is activated
“Voice Message” is received
RSSI Indicator (four steps)

VX-4500/-4600 SerieS Operating Manual
6
Rear Panel
controls & connectors



 Antenna Jack
The 50-Ohm coaxial feedline to the antenna must be connected here, using a
mini-UHF plug.
 13.6V DC Cable Pigtail with Connector
The supplied DC power cable must be connected to this 2-pin connector. Use
only the supplied fused cable, extended if necessary, for power connection.
Replace only with the same or equivalent type fuse.
 External Speaker Jack
An external loudspeaker may be connected to this 2-contact, 3.5-mm mini-
phone jack.
Caution: Do not connect either wire of this line to ground, and be certain that
the speaker has adequate capability to handle the audio output (12 W) from
the radio.
 D-Sub 15-Pin Accessory Connector
External TX audio line input, PTT (Push To Talk), Squelch, and external RX
audio line output signals may be obtained from this connector for use with ac-
cessories such as data transmission/reception modems, and external Channel
control input etc.

VX-4500/-4600 SerieS Operating Manual
7
BasIc operatIon of the transceIVer
Important! - Before turning on the radio the rst time, conrm that the power con-
nections have been made correctly and that a proper antenna is connected to the
antenna jack.
Switching Power ON/OFF
 Press and hold in the PWR( ) button for 2 seconds to turn the radio on. The
display will become illuminated.
 Press the []/[] key to choose the desired operating channel. In the VX-
4600, a channel name will appear on the display.
 In the VX-4600, if you want to select an operating channel from a different
group, press the PF (Programmable Function) key which is programmed to
the Group Up/Down feature to select the group you want before selecting the
operating channel. See page 8 for more information on the Programmable
Function keys.
Setting the Volume
 Turn the VOL knob clockwise to increase the volume, and counterclockwise
to decrease it.
Transmitting
 To transmit, monitor the channel and make sure it is clear.
THIS IS AN FCC REQUIREMENT!
 Press the PF key which is programmed to the Monitor feature to listen for
channel activity.
 When receiving a call, transmit only after the incoming call ends. The radio
cannot receive a call and transmit simultaneously.
 Press the PTT switch.
 If the channel is clear, the TX/BUSY indicator will glow red. The radio is now
transmitting. While holding in the PTT switch, speak across the face of the
microphone in a clear and normal voice. For best transmission, hold the mi-
crophone about 1-1/2 to 2 inches (4 ~ 5 cm) away from your mouth. Release
the PTT switch to receive.
 If the Busy Channel Lockout feature has been programmed on a channel, the
radio will not transmit when a carrier is present. Instead, the radio will generate
a short beep three times and the VX-4600 indicates “CH BUSY” on the display.
Release the PTT switch and wait for the channel to be clear of activity.
 If CTCSS or Digital Coded Squelch (DCS) Lockout has been programmed on
a channel, the radio can transmit only when there is no carrier being received or
when the carrier being received includes the correct CTCSS tone or DCS code.

VX-4500/-4600 SerieS Operating Manual
8
Transmit Time-Out Timer
If the selected channel has been programmed for automatic time-out, you must
limit the length of each transmission. While transmitting, a beep will sound 10
seconds before time-out. Another beep will sound just before the deadline; the red
“TX” indicator will disappear and transmission will cease soon thereafter. On the
VX-4600, “TIME OUT” will be indicated on the display. To resume transmitting,
you must release the PTT switch and wait for the “penalty timer” to expire (if you
press the PTT switch before this timer expires, the timer restarts, and you will
have to wait another “penalty” period)
Key Lock
In order to prevent accidental operating function/feature change or inadvertent
transmission, various aspects of the front panel’s keys may be locked out.
To activate the Locking feature, press and hold in the [P1] key while turning the
radio on. To disable the Locking feature, repeat this power-on procedure.
adVanced operatIon
Programmable Function (PF) Keys
The VX-4500/-4600 includes six Programmable Function (PF) keys. The PF but-
ton functions can be customized, via programming by your Vertex Standard dealer,
to meet your communications/network requirements. Some features may require
the purchase and installation of optional internal accessories. The possible PF key
programming features are illustrated below, and these functions are explained on
the pages to follow. For further details, contact your Vertex Standard dealer. For
future reference, check the box next to the function that has been assigned to each
PF key on your particular radio, and keep it handy.
BasIc operatIon of the transceIVer

VX-4500/-4600 SerieS Operating Manual
9
adVanced operatIon
: This function cannot assign to VX-4500.
functIon
programmaBle Key
(
press Key/press & hold Key
)
mIcrophone Key
(
press Key/press & hold Key
)
P1 P2 P3 P4   A B C D Ü#
None ////////////
Monitor ////////////
Monitor -Momentarily- /-- /-- /-- /-- /-- /-- /-- /-- /-- /-- /-- /--
Dimmer/Lamp ////////////
Low Power ////////////
Encryption ///// / // / // /
SET////////////
SQL OFF ////////////
SQL OFF -Momentarily- /-- /-- /-- /-- /-- /-- /-- /-- /-- /-- /-- /--
SQL Set////////////
Beep OFF ////////////
VOX ////////////
VOX Set////////////
Clear Voice ////////////
AF Min Volume ////////////
Horn Alert ////////////
PA (Public Address) ////////////
EXT ACC 1 /-- /-- /-- /-- /-- /-- /-- /-- /-- /-- /-- /--
EXT ACC 2 ////////////
Emergency /-- /-- /-- /-- /-- /-- /-- /-- /-- /-- /-- /--
Lone Worker ////////////
Group Up////////////
Group Down////////////
Channel Up ////////////
Channel Down ////////////
Speed CH Up--/ --/ --/ --/ --/ --/ --/ --/ --/ --/ --/ --/
Speed CH Down--/ --/ --/ --/ --/ --/ --/ --/ --/ --/ --/ --/
PRI-1 ////////////
PRI-2 ////////////
PRI-2 Set ////////////
PRI-2 Disable ////////////
Direct CH 1 ////////////
Direct CH 2 ////////////
Direct CH 3 ////////////
Direct CH 4 ////////////
Direct CH Entry--/-- --/-- --/-- --/-- --/-- --/-- / / / / / /
Scan ////////////
Group Scan////////////
Dual Watch ////////////
FM-Scan ////////////
Scan Set ////////////
Group Scan Set////////////
TA Scan ////////////
Talk Around ////////////
Reset ////////////

VX-4500/-4600 SerieS Operating Manual
10
adVanced operatIon
: This function cannot assign to VX-4500.
functIon
programmaBle Key
(
press Key/press & hold Key
)
mIcrophone Key
(
press Key/press & hold Key
)
P1 P2 P3 P4   A B C D Ü#
CALL 1 ////////////
CALL 2 ////////////
CALL 3 ////////////
CALL 4 ////////////
Code Up////////////
Code Down////////////
Code Set/////////// /
Speed Dial////////////
DTMF Code Set--/-- --/-- --/-- --/-- --/-- --/-- / / / / / /
Call ////////////
Status Set////////////
Status Up////////////
Status Down////////////
Status Check////////////
Duty ////////////
ID Check////////////
Option Switch 1 /-- /-- /-- /-- /-- /-- /-- /-- /-- /-- /-- /--
Option Switch 2 ////////////
REC ////////////
PLAY ////////////
TX Save Disable ////////////
Lock ////////////

VX-4500/-4600 SerieS Operating Manual
11
Description of Operating Functions
Monitor
Press (or press and hold) the assigned programmable key to cancel any signaling
features.
Monitor -MoMentarily-
Cancel any signaling features while pressing the assigned programmable key.
DiMMer/laMp
In the VX-4600, press (or press and hold) the assigned programmable key to se-
lect the brightness level of the display and keypad (“Dimmer” function). Available
selections are four levels.
In the VX-4500, press (or press and hold) the assigned programmable key to tog-
gle the back light of the display and keypad “On” and “Off” (“Lamp” function).
low power
Press (or press and hold) the assigned programmable key to set the radio’s trans-
mitter to the “Low Power” mode. Press (or press and hold) the key again to return
to “High Power” operation when in difcult terrain.
In the VX-4600, when the radio’s transmitter is set to “Low Power” mode, the “L”
icon will be indicated on the display.
encryption
When the Voice Scrambler feature is enabled, press (or press and hold) the as-
signed programmable key to toggle the voice encryption “On” and “Off”.
In the VX-4600, when the Voice Scrambler feature is activated, the “ ” icon will
be indicated on the display.
Set (This function is only available in the VX-4600)
Press (or press and hold) the assigned programmable key to activate the “User Set”
(Menu) Mode.
SQl oFF
Press (or press and hold) the assigned programmable key to open the SQL to hear
background noise (unmute the audio).
adVanced operatIon

VX-4500/-4600 SerieS Operating Manual
12
SQl oFF -MoMentarily-
Opens the SQL to hear background noise (unmute the audio) while pressing the
assigned programmable key.
SQl
Set
You can manually adjust the squelch level using this function:
 Press (or press and hold) the assigned programmable key. A tone will sound,
and the current squelch level will appear on the display.
 Press the []/[] key to select the desired squelch level.

Press the [P4] key (or MH-75A8J’s [D] key) to store the new setting. The dis-
play indicates “- SET -” briey, then reverts to the normal channel indication.
You may cancel the new setting by pressing the [P3] key (or MH-75A8J’s [C]
key). In this case, the display indicates “- CANCEL -” briey.
Beep oFF
Press (or press and hold) the assigned programmable key to toggle the beeper “On”
and “Off”.
VoX
Press (or press and hold) the assigned programmable key to turn the VOX function
“On” or “Off”. You may disable the VOX function temporarily by pressing the
PTT switch.
VoX Set
(This function is only available in the VX-4600)
You can manually adjust the VOX Gain using this function:
 Press (or press and hold) the assigned programmable key. A tone will sound,
and the current VOX Gain level will appear on the display.
 Press the []/[] button to select the desired VOX Gain level.

Press the [P4] key (or MH-75A8J’s [D] key) to store the new setting. The dis-
play indicates “- SET -” briey, then reverts to the normal channel indication.
You may cancel the new setting by pressing the [P3] key (or MH-75A8J’s [C]
key). In this case, the display indicates “- CANCEL -” briey.
clear Voice
Press (or press and hold) the assigned programmable key to activate the Clear
Voice feature. When you are operating in a noisy environment, activate the Clear
Voice feature. Again press (or press and hold) the assigned programmable key to
disable the Clear Voice feature.
adVanced operatIon

VX-4500/-4600 SerieS Operating Manual
13
adVanced operatIon
aF Min VoluMe
Press (or press and hold) the assigned programmable key to reduce the audio out-
put to the (lower) level programmed by your Vertex Standard dealer.
Horn alert
Press (or press and hold) the assigned programmable key to turn the Horn Alert
function “On” or “Off”. If you receive a call from the base station with the signal-
ing, horn alert will be activated and your vehicles horn will sound.
pa (
puBlic aDDreSS
)
Press (or press and hold) the assigned programmable key to use the transceiver as
a PA amplier. The public address can be used even while scanning and receiving
a call.
EXT ACC 1
Activates the output port “1” of the D-Sub 15-pin Accessory Connector while
pressing the assigned programmable key.
eXt acc 2
Press (or press and hold) the assigned programmable key to toggle the output port
“2” of the D-Sub 15-pin Accessory Connector “On” and “Off”.
eMergency
The VX-4500/-4600 series includes an “Emergency” feature which may be use-
ful if you have someone monitoring on the same frequency as your transceiver’s
channel.
Press the assigned programmable key to initiate an emergency call. For further de-
tails contact your Vertex Standard dealer.
lone worker
Press (or press and hold) the assigned programmable key to toggle the Lone Work-
er feature “On” and “Off”.
The Lone Worker feature is designed to emit an alarm for 30 seconds when the
Lone Worker Timer (programmed by your Vertex Standard dealer) has expired. If
the user does not reset the timer by pressing the PTT switch, the radio switches to
the Emergency mode.
To revive the radio from the Emergency mode, just press (or press and hold) the
programmable key which is assigned the Emergency feature or turn off the radio.

VX-4500/-4600 SerieS Operating Manual
14
group up/Down
(This function is only available in the VX-4600)
Press (or press and hold) the assigned programmable key to select a different
group of channels.
cHannel up/Down
Press (or press and hold) the assigned programmable key (generally the []/[]
key) to select a different channel within the current group.
SpeeD cH up/Down
(This function is only available in the VX-4600)
Press and hold the assigned programmable key causes the radio to begin stepping
(repeatedly) upward or downward through the channels.
pri-1/pri-2
Press (or press and hold) the assigned programmable key to recall the pre-pro-
grammed priority channel directly. This is pre-programmed by your Vertex Stan-
dard dealer.
pri-2 Set
Press (or press and hold) the assigned programmable key to toggle the current
channel to the priority channel 2 “enable” and “disable”.
pri-2 DiSaBle
Press (or press and hold) the assigned programmable key to disable the priority
channel 2 of the group temporarily.
Direct cH 1 to Direct cH 4
Press (or press and hold) the assigned programmable key to recall the pre-
programmed channel directly. This is pre-programmed by your Vertex Standard
dealer.
adVanced operatIon

VX-4500/-4600 SerieS Operating Manual
15
adVanced operatIon
Direct cH entry
(This function is only available in the VX-4600 and requires the Optional MH-75A8J 16-Keypad Microphone)
You can recall the desired channel directly using this function:
 Press (or press and hold) the assigned programmable key. A tone will sound,
and the current group/channel number will appear on the display.
 Enter the desired group number (two digits) and channel number (two digits)
on the MH-75A8J’s keypad.

Press the [P4] key (or MH-75A8J’s [D] key) to store the new setting. The dis-
play indicates “- SET -” briey, then reverts to the normal channel indication.
You may cancel the new setting by pressing the [P3] key (or MH-75A8J’s [C]
key). In this case, the display indicates “- CANCEL -” briey.
Scan
The Scanning feature is used to monitor multiple channels 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.
To activate scanning:
 Press (or press and hold) the assigned programmable key to activate scanning
on the channel which is pre-programmed into the scan list by your Vertex Stan-
dard dealer.
 The scanner will search the programmed channels, looking for active ones; it
will pause each time it nds a channel on which someone is speaking.
 Press (or press and hold) the assigned programmable key again to disable scan-
ning. Operation will revert to the programmed revert channel.
Note: Your Vertex Standard dealer may have programmed your radio to stay on
one of the following channels if you press the PTT switch during the scanning
pause:
 “Scan Pause” channel (“Talk Back”)
 “Last Busy” channel
 “Priority-1/-2” channel
 “User Programmed” channel (“Select Channel”)
 “Scan Start” channel

VX-4500/-4600 SerieS Operating Manual
16
group Scan
(This function is only available in the VX-4600)
The Scanning feature is used to monitor multiple channels programmed into the
transceiver. While scanning, the transceiver will check each channel of the pro-
grammed group for the presence of the signal, and will stop on a channel if a sig-
nal is present.
Press (or press and hold) the assigned programmable key to activate the scanning
on the selected groups.
Dual watcH
The Dual Watch feature is similar to the SCAN feature, except that only two chan-
nels are monitored:
 The current operating channel; and
 The Priority-1/-2 channel.
To activate Dual Watch:
 Press (or press and hold) the assigned programmable key.
 The scanner will search the two channels; it will pause each time it nds a
channel on which someone is speaking.
To stop Dual Watch:
 Press (or press and hold) the assigned programmable key.
 Operation will revert to the “Dual Watch Start” channel.
FM-Scan
(
Follow-Me Scan
)
FM-Scan (Follow-Me Scan) feature checks a User-assigned Priority Channel regu-
larly as you scan the other channels. Thus, if only Channels 1, 3, and 5 (of the 8
available channels) are designated for “Scanning,” the user may nonetheless assign
Channel 2 as the “User-assigned” Priority Channel via the FM-Scan (Follow-Me
Scan).
To activate the FM-Scan (Follow-Me Scan), rst select the channel you want to
designate as the “User-Assigned Priority Channel” and press (or press and hold)
the assigned programmable key. Then press (or press and hold) the Channel Up/
Down key (generally the []/[] key) to recall to the “Scanning Start” chan-
nel which has been programmed by your dealer to activate the scanner. When the
scanner stops on an “Active” channel, the User-assigned Priority Channel will
automatically be checked every few seconds; if activity is found on the User-as-
signed Priority Channel, the radio will switch between it and the Dealer-Assigned
Priority Channel, if any.
adVanced operatIon

VX-4500/-4600 SerieS Operating Manual
17
adVanced operatIon
Scan Set
Press (or press and hold) the assigned programmable key to add/delete the current
channel to/from your scanning list.
In the VX-4500, when you delete channel, the “A” or “B” indicator will turn
off, if the “SCAN CH” status is assigned to the “A” or “B” indicator. To restore
a particular channel to your scanning list, press (or press and hold) the assigned
programmable key again; the “A” or “B” indicator will illuminates, if the “SCAN
CH” status is assigned to the “A” or “B” indicator.
In the VX-4600, when you delete channel, the display indicates “- SCN SKIP -”
briey and the “ ” icon will disappear from the display. To restore a particular
channel to your scanning list, press (or press and hold) the assigned programmable
key again; the display indicates “- SCN SET -” briey and “ ” icon will appear on
the display.
Furthermore, press (or press and hold) the assigned programmable key while the
scanner is paused, this removes the channel from the scan list temporarily.
group Scan Set
(This function is only available in the VX-4600)
You may wish to have the Scanner pass through more than one Group during the
scanning process (normally, scanning is performed within the current group only).
To include the current Group in the scanning loop, press (or press and hold) the
assigned programmable key (the “” icon will appear on the display). To remove
a current Group from Group Scan, press (or press and hold) the assigned pro-
grammable key again (the “” icon will disappear from the display).
ta Scan
Press (or press and hold) the assigned programmable key to toggle the TA (Talk
Around) scan feature “On” and “Off.”
While TA scan is enabled, the transceiver will search both the transmit and receive
frequencies (In the VX-4600, the “ ” icon will blink on the display). When a
signal is encountered on the receive frequency, the transceiver will pause until the
signal disappears (In the VX-4600, “ ” icon will appear but not blink). When a
signal is encountered on the transmit frequency, the transceiver will check for ac-
tivity on the receive frequency every few seconds (interval programmed by your
Vertex Standard dealer).
Note: The TA Scan feature does not activate on the Simplex Channel.

VX-4500/-4600 SerieS Operating Manual
18
talk arounD
Press (or press and hold) the assigned programmable key to activate the Talk
Around feature when you are operating on duplex channel systems (separate re-
ceive and transmit frequencies, 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” chan-
nels, where the receive and transmit frequencies are already the same.
In the VX-4600, when the “TA” function is activated, the “ ” icon will be indi-
cated on the display.
Note that your Vertex Standard may have made provision for “Talk Around” chan-
nels by programming “repeater” and “Talk Around” frequencies on two adjacent
channels. If so, the key may be used for one of the other Pre-Programmed Func-
tions.
Note: The Talk Around feature does not activate on the Simplex Channel.
reSet
Press (or press and hold) the assigned programmable key to reset the RFC (Ready
for Communication) condition.
call 1 to call 5
Press (or press and hold) the assigned programmable key to send a 2-Tone or
5-Tone sequential burst which is pre-programmed.
coDe up/Down
(This function is only available in the VX-4600)
Press (or press and hold) the assigned programmable key to select a 2-Tone or
5-Tone encode code from the pre-programmed encode list.
adVanced operatIon