Vertex VX-6000 User manual

VX-6000
Operating Manual
Manual de Operación
Vertex Standard LMR, Inc.
PO WE R


English

Congratulations!
You now have at your ngertips a valuable communications tool - a Vertex Standard
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 negligible mainte-
nance down time.
Please take a few minutes to read this manual carefully. The information presented
here will allow you to derive maximum performance from your radio. After reading it,
keep the manual handy for quick reference, in case questions arise later on.
We’re glad you joined the Vertex Standard team. Call on us any time, because our
business is communications. Let us help you get your message across.
NOTICE
There are no user-serviceable points inside this transceiver. All service jobs
must be referred to your Authorized Service Center or Network Administrator.
Safety / Warning Information
WARNING - DO NOT operate the VX-6000L/V/U radio when someone (by-
standers) outside the vehicle is within following range.
Safety Training information:
Antennas used for this transmitter must not exceed an antenna gain of 0 dBd.
The radio must be used in vehicle-mount congurations with a maximum oper-
ating duty factor not exceeding 50%, in typical Push-to-Talk congurations.
This radio is restricted to occupational use, work related operations only where
the radio operator must have the knowledge to control the exposure conditions
of its passengers and bystanders by maintaining the minimum separation dis-
tance of following range.
Failure to observe these restrictions will result in exceeding the FCC RF expo-
sure limits.
Antenna Installation:
For rear deck trunk installation, the antenna must be located at least the follow-
ing range away from rear seat passengers and bystanders in order to comply
with the FCC RF exposure requirements.
For roof top installation, the antenna must be placed in the center of the roof.
Radiated frequency and Distance
VX-6000L (B)VX-6000V (C)VX-6000U (D)
5.08 ft (1.55 m)4.85 ft (1.48 m)3.77 ft (1.15 m)

Page 1VX-6000 Operating Manual
VX-5500 Operating Manual
The VX-6000 Series are full-featured FM transceivers designed for flexible mobile
and base station business communications in the VHF Low-Band (120/50 Watts: pro-
grammable), VHF High-Band (110/50 Watts: programmable) and UHF (100/50 Watts:
programmable) Land Mobile Bands. Each model is designed for reliable business com-
munications in a wide variety of applications, with a wide range of operating capability
provided by its leading-edge design.
The 250-channels memories can each be programmed with a 8-character channel name.
Important channel frequency data is stored in EEPROM and flash memory on the
CPU, and is easily programmable by dealers using a personal computer and the
Vertex Standard CT-71 Programming Cable and CE49 Software.
The pages which follow will detail the many advanced features provided on the VX-
6000 transceiver. After reading this manual, you may wish to consult with your Net-
work Administrator regarding precise details of the conguration 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 Admin-
istration 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.
PO WE R

Page 2 VX-6000 Operating Manual
Controls & ConneCtors
Front Panel
1
POWER Button
Press the button to turn the transceiver ON and OFF.
2
TX Indicator
This lamp glows red when the radio is transmitting.
3
BUSY Indicator
This lamp glows green when the channel is busy.
4
Liquid Crystal Display
The display include an 8-character alpha-numeric section showing channel and
group names, status and identity information, and error messages. Additional indi-
cators on the display show priority channel assignments and scan include/exclude
selection.
PO WE R
11
10
9
8
7
6
5
4
3
2
1
8 Character Alpha-numeric Display
Channel Group Number
This channel on “Intercom” List
This channel on “Selectable tone” List
This channel on “Scan” List
Receiver Monitor
This channel on “Public address”
or “sPeaker” List
This channel on “Horn alert” List
This channel on “oPtion” List
This channel on “auX a/b/c” List

Page 3VX-6000 Operating Manual
Controls & Connectors
5
p/ Button
Pressing these buttons changes the current group (and displayed group number or
name). Holding this button for more than 1/2 second causes the function to repeat.
6
SQC Indicator
This lamp glows orange when incorrect position at the setting of CE49.
7
Programmable Function Button (PF button)
This button can be set up for special applications, such as high/low power selection,
monitor, dimmer, talk-around, and call alert function, as determined by your net-
work requirements and programmed by your Vertex Standard dealer.
8
VOLUME Knob
This knob sets the volume of the receiver.
9
EMERGENCY Microphone
The emergency microphone is located behind this small slit. When the emergency
feature is activated, this Microphone is enabled.
10 CHANNEL Selector Knob
This knob select the operating channel.
11
Programmable Function Button (PF button)
This button can be set up for special applications, such as high/low power selection,
monitor, dimmer, talk-around, and call alert function, as determined by your net-
work requirements and programmed by your Vertex Standard dealer.
Side Panel
Microphone Jack (It is on both sides.)
Connect the microphone plug to this jack.
Microphone Jack

Page 4 VX-6000 Operating Manual
REAR (Heatsink)
1
Antenna Socket
The 50-ohm coaxial feedline to the antenna must be connected here, using a type-M
(PL-259) plug.
2
External Speaker Jack
An external loudspeaker may be con nected to this 2-contact, 3.5-mm mini-phone
jack.
Caution: Do not connect this line to ground, and be certain that the speaker has ad-
equate capability to handle the audio output from the VX-6000.
3
13.6-V DC Cable Pigtail w/Connector
The supplied DC power cable must be connected to this 4-pin connector. Use only
the supplied fused cable, extended if necessary, for power connection.
4
DSUB 25-Pin Accessory Connector
External TX audio line input, PTT (Push To Talk), Squelch, and external RX audio
line output signal may be obtained from this connector for use with accessories such
as data transmission/reception modems, etc.
Controls & Connectors
4
3
2
1

Page 5VX-6000 Operating Manual
BasiC operation of the transCeiver
Important! - Before turning on the radio the rst time, conrm that the power connec-
tions have been made correctly and that a proper antenna is connected to the antenna
jack.
Switching Power ON/OFF
Push the POWER switch turn on the radio. The display will become illuminated.
The radio will start up on the last channel used prior to shut-down during the previ-
ous operating session.
Turn the CHANNEL selector knob to choose the desired operating channel. A chan-
nel name will appear on the display. If you want to select the operating channel
from a different Memory Channel Group, press the UP (p) or DOWN () button
to select the Memory Channel Group you want before selecting the operating chan-
nel.
Setting the Volume
Turn the VOLUME knob clockwise to increase the volume, and counterclockwise to
decrease it. If no signal is present, press and hold in the MON button more than 1/2
seconds; background noise will now be heard, and you may use this to set the VOL-
UME knob for the desired audio level. Press and hold the MON button more than
1/2 seconds to quiet the noise and resume normal (quiet) monitoring.
Transmitting
To transmit, wait until the “BUSY” indicator is off (the channel is not in use), and
press the PTT (Push-To-Talk) switch on the side of the microphone (the “TX” in-
dicator will appear or the “TX” indicator will glow red). While holding in the PTT
switch, speak across the face of the microphone in a clear, normal voice level, and
then release the PTT switch to receive.
Selecting Groups and Channels
Press the UP (p) or DOWN () button (repeatedly, if necessary) to select a
different group of channels.
Turn the CHANNEL selector knob to select a different channel within the cur-
rent group.
Automatic 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 ve seconds
before time-out. Another beep will sound just before the deadline; the “TX” indica-
tor will disappear and transmission will cease soon thereafter. To resume transmit-
ting, you must release the PTT and wait for the “penalty timer” to expire (if you
press the PTT before this timer expires, the timer restarts, and you will have to wait
another “penalty” period).

Page 6 VX-6000 Operating Manual
ARTS™ (Auto Range Transpond System)
This system is designed to inform you when you and another ARTS™-equipped sta-
tion are within communication range.
During ARTS™ operation, your radio automatically transmits for about 1 second
every 25 (or 55) seconds (the interval is programmed by Dealer) in an attempt to
Shake hands with the other station.
If you move out of range for more than one minutes, your radio senses that no sig-
nal has been received, a ringing beeper will sound. If you subsequently move back
into range, as soon as the other station transmits, your beeper will sound.
advanCed operation
Programmable Function Button (PF button)
The VX-6000 includes the seven Programmable Function Buttons (PF button).
The PF
button functions can be customized, via programming by your
Vertex Standard dealer, to
meet your communications/network requirements. Some features may require the pur-
chase and installation of optional internal accessories.
To activate the primary Accessory function, press the PF button momentarily. To access
the secondary Accessory function (which may include the Alarm), press and hold the
PF button for 1.5 seconds or longer.
The possible PF button programming features are illustrated at the next page, and their
functions are explained on page 8.
For further details, contact your Vertex Standard dealer. For future reference, check the
box next to each function that has been assigned to the PF button on your particular ra-
dio, and keep it handy.
BasiC operation of the transCeiver

Page 7VX-6000 Operating Manual
advanCed operation
Functions Programmable Function Button (PF Button)
<1.5 sec >1.5 sec <1.5 sec >1.5 sec <1.5 sec >1.5 sec <1.5 sec >1.5 sec <1.5 sec >1.5 sec <1.5 sec >1.5 sec <1.5 sec >1.5 sec
None
Channel Scan (SCN)
Dual Watch
Call/Reset
Noise Blanker (NB)ø1
Talk-Around (TA)
Alpha Numeric (A/N)
DIMMER (DIM)
Emergency (EMG)
Horn Alert (HA)
Home Channel (HOM)
Intercom (IC)
Low Power (LOW)
Group Up (GRP UP)
Group Down (GRP DWN)
Channel Up (CH UP)
Channel Down (CH DWN)
AUX A
AUX B
AUX C
Public Address (PA)
Monitor (MON)
Channel Recall (RCL)
Selectable Tone (ST)
Speaker (SP)ø2
Squelch Level (SQL)
Compander (COMP)
Encryption (OPT)ø3
ø1: for VX-6000L
ø2: requires RMK-4000
ø3: requires Encryption Unit
PO WE R

Page 8 VX-6000 Operating Manual
Channel Scan (SCN)
The Scanning feature is used to monitor multiple signals programmed into the trans-
ceiver. While scanning, the transceiver will check each channel for the presence of a
signal, and will stop on a channel if a signal is present.
To activate scanning:
¦Press the assigned PF button of the “Scan” momentarily to activate scanning.
¦The scanner will search the channels, looking for active ones; it will pause each
time it nds a channel on which someone is speaking.
To stop scanning
¦Press the assigned PF button of the “Scan”.
¦Operation will revert to the channel to which the CHANNEL selector 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:
r Current channel (“Talk Back”)
r “Last Busy” channel
r “Priority” channel
r “Home” channel
r “Scan Start” channel
Dual Watch
The Dual Watch feature is similar to the Scan feature, except that only two channels
are monitored:
rThe current operating channel; and
rThe “Priority” channel.
To activate Dual Watch:
Press the assigned PF button of the “Dual Watch”.
The scanner will search the two channels; it will pause each time it nds a chan-
nel on which someone is speaking.
To stop Dual Watch:
Press the assigned PF button of the “Dual Watch”.
Operation will revert to the channel to which the CHANNEL selector knob is set.
Call/Reset
When this feature is programmed and a selective call has been received, momentari-
ly press the assigned PF button of the “Call/Reset” to reset the ashing indicator
and mute the receiver, otherwise press the assigned PF button of the “Call/Reset”
to sent your radio’s identication code (ANI) to the dispatcher.
Noise Blanker (NB)
Because local noise can be particularly troublesome in the VHF Low-Band fre-
quency spectrum, the Low-Band version of the VX-6000 includes a Noise Blanker
feature, which may be toggled on and off by pressing the assigned PF button of the
“Noise Blanker” for the appropriate length of time.
advanCed operation

Page 9VX-6000 Operating Manual
Talk-Around (TA)
The feature causes the assigned PF button of the “Talk-Around” to select simplex
operation on semi-duplex channels: the transmit frequency becomes the same as the
receive frequency (regardless of any programmed offset for the channel).
Note: This feature has no effect on simplex channels. After pressing the button,
“-TAKARD-” is displayed on the LCD.
Alpha Numeric (A/N)
Press the assigned PF button of the “Alpha Numeric” to switch the display be-
tween the Group/Channel number, and the Group/Channel name (alphanumeric). A
tone will sound each time you switch between numerical and alphanumerical dis-
play.
DIMMER (DIM)
Press the assigned PF button of the “DIM” to adjust the brightness of the display
and key backright.
Emergency (EMG)
Press the assigned PF button of the “EMG” to initiate an emergency call (requires
ANI board). When an emergency call is made, not tone is emitted and the display
does not change. To end the emergency call, turn the transceiver power OFF.
Horn Alert (HA)
Press the assigned PF button of the “HA” to turn the Horn Alert function ON or
OFF. If you receive a call from the base station with 2Tone or DTMF signaling,
horn alert will activate.
When you turn Horn Alert ON, a tone will sound and “ ” appears on the display.
Home Channel (HOM)
Press the assigned PF button of the “Home” to select the pre-programmed Home
Channel. Press it again to return to the previous channel. If used while scanning,
pressing this key a second time will change to the revert channel.
Intercom (IC)
This feature requires dual head conguration. Press the assigned PF button of the
“IC” to turn the intercom feature ON or OFF. While ON, you can press the PTT
switch to communicate to another control head operator without transmitting over
the air. When you press this key, a tone sounds and “ ” appears on the display.
The intercom can be used even while scanning and receiving a call
Low Power (LOW)
Press the assigned PF button of the “Low Power” to set the radio’s transmitter to
the “Low Power” mode.
Press this key again to return to “High Power” operation when in difcult terrain.
advanCed operation

Page 10 VX-6000 Operating Manual
Group Up/Down (GRP UP/DWN)
Press the assigned PF button of the “GRP UP” or “GRP DWN” to select a differ-
ent group of channels.
Channel Up/Down (CH UP/DWN)
Press the assigned PF button of the “CH UP” or “CH DWN” to select a different
channel within the current group.
AUX A/B/C
Press the assigned PF button of the “AUX A”, “AUX B”, or “AUX C” to turn the
output port (respectively).
Public Address (PA)
Press the assigned PF button of the “PA” to use the transceiver as a PA amplier.
When you enable this function, a tone sounds and “ ” appears on the display.
The public address can be used even while scanning and receiving a call.
Monitor (MON)
Press the assigned PF button of the “MONI” momentarily to cancel CTCSS and
DCS signaling squelch; the “MON” icon appears on the display. Press and hold this
key for 1/2 seconds to hear background noise (unmute the audio); the MON icon
blinks on the display.
Channel Recall (RCL)
During scan, you can press the assigned PF button of the “RCL” to select the last
called channel.
Selectable Tone (ST)
Press the assigned PF button of the “Selectable Tone”, then rotate the CHANNEL
selector knob to select a 2-Tone.
Speaker (SP)
Press the assigned PF button of the “SP” to switch “Front panel”, “Front panel
& Body” and “Body” speaker. When “Body” is selected, a tone sounds and the
“ ” icon appears on the display. You can use this function while scanning and
receiving a call. However, all audio will be emitted from the PA speaker.
Squelch Level (SQL)
You can manually adjust the squelch level using this function:
1. Press the assigned PF button of the “SQL”. A tone sounds and “SQL” appears
on the display with the current squelch level.
2. Rotate the CHANNEL selector knob to select the desired level.
3. Press the this key. A tone sounds and the display returns to the normal channel.
advanCed operation

Page 11VX-6000 Operating Manual
Compander (COMP)
Press the PF button assigned to the “COMP” function to turn the “Compander” IC
ON or OFF.
This IC contains two variable gain circuits congured for compressing and expand-
ing the dynamic range of the radio's transmitted and received audio signal.
When you enable this function, the signal-to-noise radio can be improved by reduc-
ing the transmitted audio dynamic range.
Encryption (OPT)
When the Voice Scrambler feature is enabled, pressing the assigned PF button of
the “Encryption” toggles the Scrambler on and off.
advanCed operation

Page 12 VX-6000 Operating Manual
optional aCCessories
MH-53C7A Heavy Duty Microphone
MH-53A7A Heavy Duty Microphone w/Noise Canceler
MH-53B7A Heavy Duty DTMF Microphone w/Noise Canceler
MD-12A7A Desktop Microphone
CNT-6000 Control Head
BSC-5000 Base Station Console
RF DECK RF Deck w/MMB-77 (for Dual Band Installations)
RMK-4000SH Remote Kit (for Single Transceiver)
RMK-4000DH Remote Kit (for Dual-Head Installations)
RMK-4000DB Remote Kit (for Dual Band Installations)
RMK-4000DBH Remote Kit (for Dual Band plus Dual Head Installations)
CT-93 Cable for RMK-4000 (33 ft, 10 m)
CT-81 Cable for RMK-4000 (20 ft, 6 m)
CT-82 Cable for RMK-4000 (8 ft, 2.5 m)
CT-83 Cable for RMK-4000 (2 ft, 0.6 m)
F2D-8 2-Tone Decode Unit (Requires FIF-7A)
FVP-25 Voice Inversion Encryption/DTMF pager Unit (Requires FIF-7A)
FVP-35 Encryption Unit (Rolling code voice scrambler; Requires FIF-7A)
FVP-36 Voice Inversion Encryption Unit (Requires FIF-7A)
VME-100 MDC1200®, GE-Star® Encoder Unit (Requires FIF-7A)
MLS-100 External Speaker (12 W Peak Power)
MLS-200 Waterproof External Speaker (12 W Peak Power)
MMB-79 Mobile Mounting Bracket
MMB-77 Locking Mobile Mounting Bracket
FIF-7A Inter face Board (for F2D-8, FVP-25/-35/-36, VME-100)
CN-6 Inter face Board (for Accessories)
LF-5 Line Filter
CE49 Programming Software
FIF-12 USB Programming Interface
CT-71 Radio to PC Programming Cable
CT-72 Radio to Radio Programming Cable
CT-105 Radio Programming Cable (for FIF-12)
Availability of accessories may vary; some accessories are supplied standard per local
requirements, others may be unavailable in some regions.
Check with your Vertex Standard Dealer for changes to this list.

Español

¡Felicitaciones!
Lo que tiene en sus manos es un valioso aparato de comunicación -- ¡un transmisor-receptor
Vertex Standard!. Resistente, seguro y fácil de usar, su radio Vertex Standard le permitirá man-
tenerse en contacto permanentemente con sus colegas por muchos años, con mínimas interrup-
ciones a través del tiempo para realizar su manutención u otros ajustes.
Haga el favor de detenerse unos minutos para leer este manual con atención. La información
que aquí se presenta le permitirá aprovechar al máximo todas las ventajas funcionales del radio.
Una vez que termine de leer este manual, manténgalo a mano para consultarlo en caso de que
en el futuro surja cualquier duda relacionada con el funcionamiento del transceptor.
Nos alegra que se haya integrado a la familia Vertex Standard. Llámenos cuando quiera, puesto
que las comunicaciones son asunto nuestro y permítanos ayudarle a transmitir su mensaje.
ADVERTENCIA
El transceptor no trae ninguna pieza interna que pueda ser reparada por el usuario. Por
lo tanto, todo trabajo de reparación debe ser enviado directamente al Centro de Servicio
Técnico Autorizado de Vertex Standard o al Administrador de la Red.
Medidas de Seguridad y Advertencia
Advertencia: NO operar la radio VX-6000L/V/U cuando haya personas fuera del ve-
hículo que se encuentren dentro del área considerada como distancia mínima entre los
mismos.
Para un entrenamiento seguro:
Antenas utilizadas para este transmisor no deberán superar la ganancia de más de
0 dBd. La radio deberá ser usada según las conguraciones del vehículo standard con un
máximo factor operativo que no exceda el 50% en la típica conguración Push-to-Talk.
Esta radio está restringida para el uso laboral y las operaciones relacionadas con el
trabajo, únicamente cuando el operador de radio posea el conocimiento suciente para
controlar las condiciones de exposición de sus pasajeros y transeúntes manteniendo
siempre la mínima distancia establecida entre ambos vehículos.
Cualquier incumplimiento a las restricciones indicadas, causaría un exceso mayor a los
límites de exposición de radiofrecuencia determinados por la FCC (Comisión Federal
de Comunicación).
Instalación de la Antena.
Al instalar la antena en la parte posterior del vehículo, ésta deberá ser colocada man-
teniendo siempre la mínima distancia establecida respecto al asiento posterior de pa-
sajeros, para cumplir con los requisitos de la exposición de radiofrecuencia de la FCC
(Comisión Federal de Comunicación).
Al instalar la antena en el techo, ésta deberá ser colocada en el centro del mismo.
Radiated frequency and Distance
VX-6000L (B)VX-6000V (C)VX-6000U (D)
5.08 ft (1.55 m)4.85 ft (1.48 m)3.77 ft (1.15 m)

Página 1VX-6000 Manual de Instrucciones
Manual de Instrucciones
Serie VX-6000
El transceptor de la serie VX-6000 es un completísimo radio en FM, concebido para ser utilizado
indistintamente como una estación base o móvil en el campo de las comunicaciones comerciales
que se efectúan a través de la banda baja VHF-Low (120/50 vatios: programable), de la banda
alta VHF (110/50 vatios: programable) y de las bandas móviles terrestres UHF (100/50 vatios:
programable). Cada modelo ha sido concebido para ofrecerle abilidad en una amplia variedad
de aplicaciones vinculadas a la radiodifusión comercial, incluyendo diversas funciones ahora a su
entera disposición gracias a las avanzadas características de fabricación propias de esta serie.
El usuario puede programar una denominación alfanumérica de 8 caracteres para cada uno de los
250 canales de memorias que existen.
Los datos importantes relativos a la frecuencia de canales son almacenados en una memoria EE-
PROM e instantánea en la Unidad de Procesamiento Central, la cual el distribuidor puede con-
gurar con toda facilidad utilizando una computadora personal, el cable de Programación CT-71
de Vertex Standard y el programa para ordenadores CE49.
En las páginas a continuación se describen en forma detallada las numerosas y avanzadas funcio-
nes que posee el transceptor VX-6000. Después de leer el manual, puede que decida consultar
con el Administrador de la Red en relación a los detalles precisos de la conguración de este
equipo a n de utilizarla en su aplicación.
Para Usuarios Norteamericanos en Relación a la
Banda de Seguridad de 406 MHz
La Guardia Costera de los Estados Unidos y la Administración Nacional para la Ocea-
nografía y la Atmósfera han solicitado la cooperación de la Comisión Federal de Comu-
nicaciones de ese país con el objeto de preservar la integridad de la gama de frecuencias
protegida entre los 406.0 y 406.1 MHz, la cual está reservada para el uso de radiobalizas
de socorro. No intente programar este aparato, bajo ninguna circunstancia, para que opere
en la banda de frecuencias comprendida entre la referida gama si va a utilizar el equipo
en Norteamérica o en las proximidades de su territorio.
PO WE R

Página 2 VX-6000 Manual de Instrucciones
Controles y ConeCtores
Panel Frontal
1
Botón de Encendido “POWER”
Oprima este botón para encender y apagar el transceptor.
2
Indicador de Transmisión “TX”
Esta lámpara se enciende de color rojo cuando el radio está transmitiendo.
3
Indicador de Ocupación “BUSY”
Esta lámpara se enciende de color verde cuando el canal está ocupado.
4
Visualizador de Cristal Líquido
La pantalla incluye una sección alfanumérica compuesta de 8 caracteres que exhibe los nom-
bres de los canales y grupos, la información relativa al estado funcional y la identicación,
además de los mensajes de error. Otros indicadores de la pantalla muestran las asignaciones
de prioridad de los canales y la selección de los que han de ser incluidos o excluidos del pro-
ceso de exploración en el radio.
PO WE R
11
10
9
8
7
6
5
4
3
2
1
Despliegue Alfanumérico de 8 Caracteres
Número de Grupo de Canales
Este Canal está en la Lista de “IntercomunIcacIón”
Este Canal está en la Lista de “tono SeleccIonable”
Este Canal está en la Lista de “exploracIón”
Monitor de Recepción
Este Canal está en la Lista de
“comunIcacIón por altavoceS” o
“recuperacIón de canaleS”
Este Canal está en la
Lista de “Alerta de Bocina”
Este Canal está en la
Lista de “Optativa”
Este Canal está en la Lista de “AUX A/B/C”
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