Yaesu Musen 20321X70 LINEAR AMPLIFIER User Manual
Yaesu Musen Co., Ltd. LINEAR AMPLIFIER Users Manual
Users Manual

HF/50 MHz Linear aMpLiFire
VL-2000
Operating ManauL
VERTEX STANDARD CO., LTD.
4-8-8 Nakameguro, Meguro-Ku, Tokyo 153-8644, Japan
VERTEX STANDARD
US Headquarters
10900 Walker Street, Cypress, CA 90630, U.S.A.
YAESU UK LTD.
Unit 12, Sun Valley Business Park, Winnall Close
Winchester, Hampshire, SO23 0LB, U.K.
VERTEX STANDARD HK LTD.
Unit 1306-1308, 13F., Millennium City 2,  378 Kwun Tong Road,
Kwun Tong, Kowloon, Hong Kong
VERTEX STANDARD (AUSTRALIA) PTY., LTD.
Tally Ho Business Park, 10 Wesley Court, East Burwood, VIC, 3151
FCC ID: K6620321X70
Vertex Standard Co., Ltd.

Contents
General Description ...................................................................................................................................................................1
Front Panel Controls & Switches ...............................................................................................................................................2
Rear Panel Connectors & Switches ...........................................................................................................................................4
Installation & Interconnections .................................................................................................................................................6
  FTDX9000 Series ........................................................................................................................................................... 6
  FTDX5000 ......................................................................................................................................................................7
  FT-2000/D ......................................................................................................................................................................8
  FT-950 .............................................................................................................................................................................9
  FT-450/D ...................................................................................................................................................................... 10
  FT-897/D ...................................................................................................................................................................... 11
  FT-857/D ....................................................................................................................................................................... 12
  Multi Connection .......................................................................................................................................................... 13
  General Transceiver ..................................................................................................................................................... 14
Operation ................................................................................................................................................................................. 16
  Preparations .................................................................................................................................................................. 16
  Linear Amplier Operation.......................................................................................................................................... 17
  Automatic Antenna Tuner Operation ........................................................................................................................... 18
  SO2R (Single Operator Two Radios) Feature .............................................................................................................. 19
  ANTENNA DIRECT Feature ...................................................................................................................................... 19
Trouble Shooting...................................................................................................................................................................... 20
Specications ........................................................................................................................................................................... 21
FCC ID: K6620321X70
Vertex Standard Co., Ltd.

1
VL-2000 Operating Manual
Congratulations! You are now the owner of the Yaesu VL-2000 Linear Amplier, which brings you leading-edge technol-
ogy for the ultimate in operating convenience and reliability. We appreciate your investment in Yaesu equipment, and wish 
you many years of satisfying operation using your new amplier!
The VL-2000 is an all-solid-state linear amplier operating on the 160 through 6 meter amateur bands at a power output 
level of 1500 Watts on all modes*. The VL-2000 includes a built-in antenna tuner with 470 memories for tuning data, and 
microprocessor control of the tuning circuitry. The VL-2000 features input jacks for two different exciters, as well as ve 
antenna jacks for connection of antennas for different bands.
The separate VP-2000 Power Supply Unit provides the +48 Volts required by the PA transistors, as well as all required 
control voltages for the amplier. The VL-2000 normally is powered via 220 Volt AC mains, although it can be operated, 
at the 500 Watt level, from 120 Volt AC power.
We encourage you to read this manual thoroughly before beginning installation and operation of your VL-2000 Linear 
Amplier. The details regarding proper installation and operating advice contained in these pages will help you derive 
maximum satisfaction from your new Yaesu equipment. Be certain to observe all due safety precautions when using this 
high-power device!
General Description
Supplied AcceSSorieS
Item QuantIty
Antenna Cable (T9101600) ..................................................................................................................................1
Control Cable (T9101599) ...................................................................................................................................1
RCA Plug (P0091365) .........................................................................................................................................2
8-pin DIN Plug (P0090651) .................................................................................................................................1
Operating Manual ...............................................................................................................................................1
Warranty Card .....................................................................................................................................................1
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2VL-2000 Operating Manual
Front Panel Controls & Switches
POWER Switch
  This switch turns the VL-2000 “on” and “off”.
  When  the  VP-2000 [POWER]  switch is set to the 
“off” position, this switch will not function.
  If using the Yaesu transceiver  with a BAND DATA 
Cable, the VP-2000 AC power will be remotely con-
trolled  by the  transceiver’s  power  switch when the 
REMOTE switch on the rear panel of the VL-2000 is 
set to “on”.
 Caution: Never turn “off” this switch while transmit-
ting.
METER-1 Switch
  Press this switch to toggle the METER-1 function be-
tween “PO” meter and “SWR” meter.
METER-1
  This is the two functions (PO/SWR) meter which is 
determined by the “METER-1” switch selection.
PO:  Indicates the RF Power Output, from 0 to 2k 
watts on transmit.
SWR:  Indicates the antenna system observed stand-
ing wave ratio  (SWR), from 1.0 to 5.0.
METER-2 Switch
  Press this switch to toggle the METER-2 function be-
tween “ID” meter and “VDD” meter.
METER-2
  This is the two functions (ID/VDD) meter which is 
determined by the “METER-1” switch selection.
ID:  Indicates the  final  amplifier  drain  current, 
from 0 to 75 A.
VDD:  Indicates  the final  amplifier  drain  voltage 
(nominal value: 48 V). 
TX Indicator
  This indicator glows red when the VL-2000 is trans-
mitting.
OPERATE Switch
  This switch turns the power amplifier section of the 
VL-2000 “on” and “off”.
  When the power amplier is activated, the LED will 
glow red.
 Note: This switch does not effect while transmitting.
LOW Switch
  This switch selects the RF output power.
  When in the “LOW” position, the RF output power 
will be reduced to (approximately) 500 watts PEP, and  
the LED will glow red.
 Note: This switch does not effect while transmitting.
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3VL-2000 Operating Manual
Front Panel Controls & Switches
ATT Switch
  This switch activates a 3 dB input RF power attenua-
tor, to reduce excessive input power from the exciter. 
It should be “on” if exciter output exceeds 100 watt 
PEP, as is the case when using the FTDX9000 series 
transceiver. The LED will glow red, when this switch 
is “on”.
 Note: This switch does not effect while transmitting.
INPUT Switch
  This switch selects the  exciters which connected  to 
the INPUT1 and INPUT2 jacks on the rear panel.
  The “INPUT1” or “INPUT2” LED will glow red to 
indicate which exciter is in use.
 Note: This switch does not effect while transmitting.
PROTECT LED
  This LED blinks red when the Linear Amplier is ab-
normal.
TUNE Button
  This is the on/off switch for the VL-2000’s Automatic 
Antenna Tuner.
  Press this button briey, places the antenna tuner in 
line  between the  transmitter final amplifier and the 
antenna connector (The LED will glow red, and re-
ception is not affected).
  Press and  hold this button  for 1/2 second, while re-
ceiving in an a mature band, activates the transmitter 
for a few seconds while the Automatic Antenna Tuner 
rematches the antenna system impedance for mini-
mum SWR. The LED will blink red when the antenna 
tuning is processing.
  Pressing  this button brief ly, while  the Tuner is en-
gaged, will take the Automatic Antenna Tuner out of 
the transmit line.
HI-SWR LED
  This LED blinks red when the antenna system is ab-
normally high SWR condition (over 3.0:1) that cannot 
be resolved by the Automatic Antenna Tuner.
  When this LED blinks, the exciter output delivers to 
the antenna connector directly without through a lin-
ear amplier.
 Note: Check to be sure that you have the correct an-
tenna selected  on the current operating band when 
this LED blinks red. If so, you will need to check the 
condition of the antenna, its coaxial cable and/or the 
connectors on the  cable so as  to  locate  and correct 
fault.
ANT Button
  These momentary buttons select the antenna jack on 
the rear panel, with the selection indicated by the red 
LED in each button.
 Note: These buttons does not effect while transmit-
ting.
BAND Button
  These momentary buttons select the amateur band for 
the operation, with the selection indicated by the LED 
in each button.
  If using the Yaesu transceiver  with a BAND DATA 
Cable, the VL-2000 operation band will be remotely 
controlled by the transceiver’s BAND switch.
 Note: These buttons does not effect while transmit-
ting.
Forefeet
  These forefeet enable to extend the length of the fore-
foot for easy viewing by rotating the outer ring of the 
forefeet. 
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4VL-2000 Operating Manual
REMOTE Switch
  When  this  switch is  set  to  “on” position, the  VL-
2000’s  POWER  switch  will be  controlled  by  the 
transceiver’s POWER  switch  if you using a  Yaesu 
transceiver with a BAND DATA Cable.
DIRECT Switch
  When this  switch is set to “on” position, the exciter 
power  which is connected  to the INPUT2 jack  de-
liver to the ANTDIRECT connector directly, without 
passing the Linear Amplier and Antenna Tuner.
SO2R Switch
  When this switch is set to “on” position, the receiving 
signal is sent to the both transceivers which  is con-
nected to the INPUT1 and INPUT2 jack. This fea-
ture is very useful for the “SO2R” (Shingle Operator, 
Two Radio) operation.
ALC-1 Potentiometer
  This potentiometer adjusts the maximum output pow-
er of  the VL-2000 when operating  with the exciter 
which is connected to the INPUT1 jack.
ALC-2 Potentiometer
  This potentiometer adjusts the maximum output pow-
er of  the VL-2000 when operating  with the exciter 
which is connected to the INPUT2 jack.
ACC-1 Jack
  This D-SUB  15-pin Jack  is  connected to the  Yaesu 
transceiver which is connected to the INPUT1 jack, 
to allow automatic  band  selection,  T/R control, and 
power on/off control.
ACC-2 Jack
  This D-SUB  15-pin Jack  is  connected to the  Yaesu 
transceiver  which  connected to  the  INPUT 2 jack, 
to allow automatic  band  selection,  T/R control, and 
power on/off control.
Rear Panel Connectors & Switches
: +13.5 V (IN)
: TX GND
: GND
: BAND DATA A
: BAND DATA B
: BAND DATA C
: BAND DATA D
: TX INH (OUT)
: F SET COMMON
: F SET 1
: F SET 2
: RX D (TTL Level)
: TX D (TTL Level)
: EXT ALC
: GND
: +13.5 V (IN)
: TX GND
: GND
: BAND DATA A
: BAND DATA B
: BAND DATA C
: BAND DATA D
: TX INH (OUT)
: F SET COMMON
: F SET 1
: F SET 2
: NC
: NC
: EXT ALC
: GND
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5VL-2000 Operating Manual
Rear Panel Connectors & Switches
BAND-DATA2 Jack
  This 8-pin DIN Jack is connected to the Yaesu trans-
ceiver which is connected to the INPUT2 jack, to al-
low automatic band selection.
STBY2 Jack
  When this RCA jack is shorted to ground, it put the 
VL-2000 into the transmit mode. Connect this jack to 
the TXGND jack of the exciter which is connected to 
the “INPUT2” jack.
ALCOUT2 Jack
  This RCA jack provide the ALC (output) voltage for 
control of the exciter’s RF drive level which  is con-
nected to the “INPUT2” jack.
INPUT1/2 Jacks
  These  type  M (SO-239)  jacks  should  be connected 
through a supplied Antenna Cable to the (transmitting) 
antenna jack of the transceivers.
ANT Jacks
  Connect these type M (SO-239) jacks to your anten-
nas  using  large (RG-239  or larger) 50 ohm  coaxial 
cable with mating plugs (Type M: PL-259).
GND Terminal Post
  Connect this terminal to a good earth ground using 
the shortest practical length of  heavy braided cable. 
All other station equipment should be grounded to the 
same ground system.
DCIN Connector
  Connect  this  8-pin connector to the DC OUT  con-
nector on the Yaesu VP-2000 AC Power Supply. This 
connector provides  +48V DC  supply voltage for the 
power amplier of the VL-2000.
CONTROL Connector
  Connect this 8-pin connector to the CONTROL con-
nector on the Yaesu VP-2000 AC Power Supply. This 
connector provides ±12V DC supply voltage and con-
trol signals for the VL-2000.
: +13.5 V (IN)
: TX GND
: GND
: BAND DATA A
: BAND DATA B
: BAND DATA C
: BAND DATA D
: TX INH (OUT)
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6VL-2000 Operating Manual
Installation & Interconnections
FTdX9000 SerieS
Be sure both FTDX9000 and VL-2000 are turned off, then follow the installation recommendation contained in the illus-
tration.
imporTAnT noTe !
r  When operate the VL-2000 with the FTDX9000MP, should be set the ATT switch on the VL-2000 front panel to “on” 
position, and set the maximum RF output power level to “200 W” via menu item “TX GNRL 173 TX MAX POW-
ER” on the FTDX9000MP. The 400 watt power output from the FTDX9000MP is far in excess of what is required to 
drive the VL-2000 to its full rated output.
r  When operate the VL-2000 with the FTDX9000D or FTDX9000Contest, should be set the ATT switch on the VL-
2000 front panel to “on” position. The 200 watt power output from the FTDX9000D or FTDX9000Contest is far in 
excess of what is required to drive the VL-2000 to its full rated output.
r  The ALC cable must be connected between the transceiver and VL-2000 to prevent overdrive of the amplier, and 
especially to facilitate the proper operation of the protection circuitry if sudden antenna system problems should cause 
the SWR to rise to dangerous levels.
r  Do not attempt to connect or disconnect coaxial antenna cables when your hands are wet.
noTe
r  When the VL-2000 POWER switch is turned “off”, the exciter output is delivered as follows:
¦ INPUT1 exciter: delivers to the ANT1 connector directly.
¦ INPUT2 exciter: delivers to the ANTDIRECT connector directly.
r  If you want to link the VL-2000 and FTDX9000 series POWER switches, set the VL-2000 REMOTE switch to the 
“on” position.
21
ANT
To  link the  FTDX9000  and VL-2000
POW ER  switch,  set  the  VL-2000
REMOTE switch to the “ON” position.
Make the Conversion Cable to show 
illustration  at the right  with the 7-pin 
DIN  Plug  which  is  supplied  to  the 
FTDX9000 transceiver and the  after 
market’s RCA Jack.
Pin 7
Pin 3
TX REQ
GND
7-pin DIN Plug RCA Jack
converSion cAble
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7VL-2000 Operating Manual
Installation & Interconnections
FTdX5000
Be sure both FTDX5000 and VL-2000 are turned off, then follow the installation recommendation contained in the illus-
tration.
imporTAnT noTe !
r  When operate the VL-2000 with the FTDX5000, should be set the ATT switch on the VL-2000 front panel to “on” po-
sition. The 200 watt power output from the FTDX5000 is far in excess of what is required to drive the VL-2000 to its 
full rated output.
r  The ALC cable must be connected between the transceiver and VL-2000 to prevent overdrive of the amplier, and 
especially to facilitate the proper operation of the protection circuitry if sudden antenna system problems should cause 
the SWR to rise to dangerous levels.
r  Do not attempt to connect or disconnect coaxial antenna cables when your hands are wet.
noTe
r  When the VL-2000’s POWER switch is turned “off”, the exciter output is delivered as follows:
¦ INPUT1 exciter: delivers to the ANT1 connector directly.
¦ INPUT2 exciter: delivers to the ANTDIRECT connector directly.
r  If you want to link the VL-2000 and FTDX5000 POWER switches, set the VL-2000 REMOTE switch to the “on” 
position.
To  link  the  FTDX5000  and  VL-2000
POW ER  switch,  set  the  VL-2000
REMOTE switch to the “ON” position.
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8VL-2000 Operating Manual
Installation & Interconnections
FT-2000/d
Be sure both FT-2000/D and VL-2000 are turned off, then follow the installation recommendation contained in the illus-
tration.
imporTAnT noTe !
r  When operate the VL-2000 with the FT-2000D, should be set the ATT switch on the VL-2000 front panel to “on” po-
sition. The 200 watt power output from the FT-2000D is far in excess of what is required to drive the VL-2000 to its 
full rated output.
r  The ALC cable must be connected between the transceiver and VL-2000 to prevent overdrive of the amplier, and 
especially to facilitate the proper operation of the protection circuitry if sudden antenna system problems should cause 
the SWR to rise to dangerous levels.
r  Do not attempt to connect or disconnect coaxial antenna cables when your hands are wet.
noTe
r  When the VL-2000 POWER switch is turned “off”, the exciter output is delivered as follows:
¦ INPUT1 exciter: delivers to the ANT1 connector directly.
¦ INPUT2 exciter: delivers to the ANTDIRECT connector directly.
r  If you want to link the VL-2000 and FT-2000/D POWER switches, set the VL-2000 REMOTE switch to the “on” 
position.
To  link  the FT-2000/D  and VL-2000
POW ER  switch,  set  the  VL-2000
REMOTE switch to the “ON” position.
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9VL-2000 Operating Manual
Installation & Interconnections
FT-950
Be sure both FT-950 and VL-2000 are turned off, then follow the installation recommendation contained in the illustra-
tion.
imporTAnT noTe !
r  The FT-950 enables to connect only to the INPUT2 connector. Set the INPUT switch to the “INPUT2” side after as-
semble the equipment.
r  The ALC cable must be connected between the transceiver and VL-2000 to prevent overdrive of the amplier, and 
especially to facilitate the proper operation of the protection circuitry if sudden antenna system problems should cause 
the SWR to rise to dangerous levels.
r  Do not attempt to connect or disconnect coaxial antenna cables when your hands are wet.
noTe
r  When the VL-2000’s POWER switch is turned “off”, the exciter output is delivered as follows:
¦ INPUT1 exciter: delivers to the ANT1 connector directly.
¦ INPUT2 exciter: delivers to the ANTDIRECT connector directly.
r  If you want to link the VL-2000 and FT-950 POWER switches, set the VL-2000 REMOTE switch to the “on” posi-
tion.
TO
1ANT DC IN
2
FROM
GND ROT LINEAR TUNER
RTTY / PKT
PTT REC REM KEY
DMU CAT
PGM-SW
EXT
SPKR
INPUT: DC 13.8 V
22 A
-TUNE -TUNE
To  link  the  FT- 9 5 0  and  V L-20 00
POW ER  switch,  set  the  VL-2000
REMOTE switch to the “ON” position.
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10 VL-2000 Operating Manual
Installation & Interconnections
FT-450/d
Be sure both FT-450/D and VL-2000 are turned off, then follow the installation recommendation contained in the illus-
tration.
imporTAnT noTe !
r  The FT-450/D enables to connect only to the INPUT2 connector. Set the INPUT switch to the “INPUT2” side after 
assemble the equipment.
r  The ALC cable must be connected between the transceiver and VL-2000 to prevent overdrive of the amplier, and 
especially to facilitate the proper operation of the protection circuitry if sudden antenna system problems should cause 
the SWR to rise to dangerous levels.
r  Do not attempt to connect or disconnect coaxial antenna cables when your hands are wet.
noTe
r  When the VL-2000 POWER switch is turned “off”, the exciter output is delivered as follows:
¦ INPUT1 exciter: delivers to the ANT1 connector directly.
¦ INPUT2 exciter: delivers to the ANTDIRECT connector directly.
r  If you want to link the VL-2000 and FT-450/D POWER switches, set the VL-2000 REMOTE switch to the “on” po-
sition.
INPUT
DC 13.8V
22A
ANT
GND
EXT
SPKR
CATLIN EARTUN ERDATA
To  link  the  F T- 45 0  an d  VL-2000
POW ER  switch,  set  the  VL-2000
REMOTE switch to the “ON” position.
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11VL-2000 Operating Manual
Installation & Interconnections
FT-897/d
Be sure both FT-897/D and VL-2000 are turned off, then follow the installation recommendation contained in the illus-
tration.
imporTAnT noTe !
r  The FT-897/D enables to connect only to the INPUT2 connector. Set the INPUT switch to the “INPUT2” side after 
assemble the equipment.
r  The ALC cable must be connected between the transceiver and VL-2000 to prevent overdrive of the amplier, and 
especially to facilitate the proper operation of the protection circuitry if sudden antenna system problems should cause 
the SWR to rise to dangerous levels.
r  Do not attempt to connect or disconnect coaxial antenna cables when your hands are wet.
noTe
r  When the VL-2000’s POWER switch is turned “off”, the exciter output is delivered as follows:
¦ INPUT1 exciter: delivers to the ANT1 connector directly.
¦ INPUT2 exciter: delivers to the ANTDIRECT connector directly.
r  If you want to link the VL-2000 and FT-897/D POWER switches, set the VL-2000 REMOTE switch to the “on” po-
sition.
GND
DATA
CAT /
LINEAR
ACC
CHG B
CHG A
HF/50MHz
KEY
144/430MHz
ANT
EXT SPKR
INPUT
22A
DC13.8V
To  link  the  FT-897/D  and  VL-2000
POW ER  switch,  set  the  VL-2000
REMOTE switch to the “ON” position.
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12 VL-2000 Operating Manual
Installation & Interconnections
FT-857/d
Be sure both FT-857/D and VL-2000 are turned off, then follow the installation recommendation contained in the illus-
tration.
imporTAnT noTe !
r  The FT-857/D enables to connect only to the INPUT2 connector. Set the INPUT switch to the “INPUT2” side after 
assemble the equipment.
r  The ALC cable must be connected between the transceiver and VL-2000 to prevent overdrive of the amplier, and 
especially to facilitate the proper operation of the protection circuitry if sudden antenna system problems should cause 
the SWR to rise to dangerous levels.
r  Do not attempt to connect or disconnect coaxial antenna cables when your hands are wet.
noTe
r  When the VL-2000 POWER switch is turned “off”, the exciter output is delivered as follows:
¦ INPUT1 exciter: delivers to the ANT1 connector directly.
¦ INPUT2 exciter: delivers to the ANTDIRECT connector directly.
r  If you want to link the VL-2000 and FT-857/D POWER switches, set the VL-2000 REMOTE switch to the “on” po-
sition.
To  link  the  FT-897/D  and  VL-2000
POW ER  switch,  set  the  VL-2000
REMOTE switch to the “ON” position.
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13VL-2000 Operating Manual
Installation & Interconnections
mulTi connecTion (eXAmple: FTdX5000 & FT-2000)
Be sure all equipment are turned off, then follow the installation recommendation contained in the illustration.
imporTAnT noTe !
r  When  connect the 100 watt transceiver and 200 watt transceivers to the VL-2000 together, reduce the  RF output 
power of the 200 watt transceiver to 100 watt by the Menu Mode Item. For example above, set the maximum RF output 
power level to “100 W” via menu item “170 TGEN MAX PWR” on the FTDX5000.
r  The ALC cable must be connected between the transceiver and VL-2000 to prevent overdrive of the amplier, and 
especially to facilitate the proper operation of the protection circuitry if sudden antenna system problems should cause 
the SWR to rise to dangerous levels.
r  Do not attempt to connect or disconnect coaxial antenna cables when your hands are wet.
noTe
r  When the VL-2000’s POWER switch is turned “off”, the exciter output is delivered as follows:
¦ INPUT1 exciter: delivers to the ANT1 connector directly.
¦ INPUT2 exciter: delivers to the ANTDIRECT connector directly.
r  If you want to link the VL-2000 and transceiver POWER switches, set the VL-2000 REMOTE switch to the “on” 
position. When turn “on” one of the transceiver, the VL-2000 becomes “on” automatically. 
To link the Transceiver’s and VL-2000
POW ER  switch,  set  the  VL-2000
REMOTE switch to the “ON” position.
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14 VL-2000 Operating Manual
Installation & Interconnections
GenerAl TrAnSceiver
Be sure both transceiver and VL-2000 are turned off, then follow the installation recommendation contained in the illus-
tration.
imporTAnT noTe !
r  The general transceiver enables to connect only to the INPUT2 connector. Set the INPUT switch to the “INPUT2” 
side after assemble the equipment.
r  The ALC cable must be connected between the transceiver and VL-2000 to prevent overdrive of the amplier, and 
especially to facilitate the proper operation of the protection circuitry if sudden antenna system problems should cause 
the SWR to rise to dangerous levels.
r  Do not attempt to connect or disconnect coaxial antenna cables when your hands are wet.
noTe
r  When the VL-2000 POWER switch is turned “off”, the exciter output is delivered as follows:
¦ INPUT1 exciter: delivers to the ANT1 connector directly.
¦ INPUT2 exciter: delivers to the ANTDIRECT connector directly.
VL-2000
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15VL-2000 Operating Manual
Installation & Interconnections
noTe
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16 VL-2000 Operating Manual
Operation
prepArATionS
To transmit the high quality RF signal, adjust the ALC voltage in the following procedures, before operating.
imporTAnT noTe
r Conrm whether wiring does not have a miss wiring again.
r Connect the Dummy load which have an enough RF Input Power to the Antenna Connector on the rear panel of 
the VL-2000.
r The VL-2000 requires 220 Volt AC power for 1.5 kW operation, while 117 Volt AC power is possible at the 500 
W power output.
r When connect the FTDX9000D/Contest, FTDX5000, FT-2000D (200 W transceiver) to the VL-2000, set the ATT 
switch on the VL-2000 front panel to “on” position to reduce the input power of the VL-2000.
r When connect the FTDX9000MP (400 W transceiver) to the VL-2000, set the ATT switch on the VL-2000 front 
panel to “on” position, and set the maximum RF output power level to “200 W” via menu item “TX GNRL 173 
TX MAX POWER” on the FTDX9000MP to reduce the input power of the VL-2000.
1.  Set the INPUT switch to the position which is  con-
nected to the exciter.
2.  Rotate the ALC-1 (or ALC-2: determine to the exciter  
connected) potentiometer fully counter clockwise.
3.  Set the operating band of the exciter and VL-2000 to 
the same operating band.
 Note: If you connect the supplied CNTL Cable be-
tween the  transceiver and VL-2000,  the  operating 
band of the VL-2000 will automatically set when you 
set the transceiver’s operating band.
4.  Set the  operation mode of  the exciter  to the  “CW” 
mode.
5.  Set the OPERATE switch and TUNE button to both 
“off”. 
6.  Set the METER-1 function to  “PO” by pressing the 
METER-1 switch (The “PO” LED will glow red).
7.  Press the one of the ANT (1 - 4) buttons correspond-
ing to the antenna jack connecting the Dummy Load. 
8.  Press the PTT switch of  the exciter, then  adjust the 
RF output power level of  the exciter so  that  the ex-
citer’s PO meter reading becomes  100 watt  (or 200 
watt).
 Note: Refer to the operating manual of the exciter for 
the adjustment method of the RF output power level 
of the exciter.
9.  Release  the PTT  switch,  then  set  the  OPERATE 
switch to “on” (The “OPERATE” LED will glow red).
10. Set  the ATT  switch  to “on” (The “ATT” LED  will 
glow red), if the exciter output which you connected 
exceeds 100 watts PEP.
 Caution !: Do not forget this operation, as  it may 
cause a serious damage to the VL-2000 by an over 
injection.
11. Press the PTT switch of the exciter again, then adjust 
the ALC-1 (or ALC-2) potentiometer so that the ME-
TER-1 (“PO” meter) reading becomes 1500 watt.
12. Release the PTT switch.
13. The ALC voltage adjustment is now completed.
AbouT The ATT SwiTch
The VL-2000 requires input drive power of 80 - 
100 watts.
When  connect  the  exciter  having  exceed  100 
watts PEP  (such  as our  FTDX9000D/Contest, 
FTDX5000, or FT-2000D), set the ATT switch on 
the VL-2000 front panel to “on” position to reduce 
the input power of the VL-2000.
FAn operATion
The  VL-2000 cooling fans are  thermostatically 
controlled. It turns at low speed at the time of the 
transmission start, and then fan speed rises in ac-
cordance  with the  temperature rise in the case. 
The cooling  fan  operation links the OPERATE 
switch. When  turn “off” the OPERATE switch 
(mean disabling the Linear Amplier), the cooling 
fan turns “off” for enabling the quiet monitoring.
FCC ID: K6620321X70
Vertex Standard Co., Ltd.

17VL-2000 Operating Manual
Operation
lineAr AmpliFier operATion
Before operating, please check the following items:
r  Conrm whether wiring does not have a miss wiring again.
r  Conrm that the AC power plug connect to 220 Volt AC power directly. The VL-2000 requires 220 Volt AC power for 
1.5 kW operation
r  Conrm that the ATT switch is set to “on” position, when connect the exciter having exceed 100 watts PEP.
r  Conrm that the antenna SWR is less than 1.5:1.
1.  Turn the VP-2000 POWER switch “on”, then  turn 
the VL-2000 POWER switch “on”.
2.  Turn the transceiver’s POWER switch “on”. 
  If using a Yaesu transceiver with a BAND DATA Ca-
ble, and the REMOTE switch on the rear panel of the 
VL-2000 is set to “on”, the VP-2000 AC power will 
be remotely controlled by the transceiver’s POWER 
switch.
3.  Set the INPUT switch to the position which is  con-
nected to the exciter.
4.  Select the amateur band of the transceiver you wish to 
operate on.
  If  using  a  Yaesu  transceiver with  a  BAND  DATA 
Cable, band selection will occur automatically when-
ever you change bands on the transceiver. Otherwise, 
select the amateur band of the VL-2000 to same  as 
the transceiver.
5.  Select the operating mode of the transceiver you wish 
to operate on.
6.  Set the OPERATE switch to “on”. The “OPERATE” 
LED will glow red.
7.  Press  and hold  the TUNE button for  1/2 second  to 
begin automatic tuning.  The transmitter will be en-
gaged, and the red TUNE LED will blink while tun-
ing is in progress. When the  optimum  tuning point 
has been reached, the transceiver (and VL-2000) will 
return to receive, and the TUNE LED will glow red 
steadily (instead of blinking).
8.  For SSB and CW operation, make sure to adjust the 
Microphone Gain and/or Drive control on the trans-
ceiver for proper ALC indication  on the transceiver 
ALC meter, as  described in the transceiver manual.  
Generally, for SSB, the ALC meter indication should 
not deflect beyond a certain ALC limit (the “ALC” 
zone on  the transceiver’s meter) on  voice  peaks; on 
CW, the  ALC indication should  be  just  enough to 
cause slight meter deection.  Higher ALC levels may 
produce distortion or  key clicks,  without producing 
any additional power output.
  In  the CW mode, the  VL-2000  allows you  to  full 
break-in operation. However, the full break-in opera-
tion may give the stress to the T/R switching relays.
 For FM, SSTV, RTTY, or Packet operation, You may 
enable 1.5 kW operations, if the following condition is 
satised.
 r Normal Temperature: +41 °F to +95 °F
    (+5 °C to +35 °C)
 r Normal  humidity (45 % to 85 %)
 r Side Clearance: 10 inches (25 cm)
 r Rear Clearance: 12 inches (30 cm).
  Otherwise, press the LOW switch to select the LOW 
power  condition to prevent the overheating during 
continuous operation.
 For  AM  operation,  adjust  the  Drive or RF Power 
control on the transceiver so that the METER-1 (“PO” 
meter) on the VL-2000 does not exceed 375 watts (on 
1.5 kW operation) or 125 watts (on 500 watt opera-
tion) when transmitting a carrier.
operATinG precAuTionS
Summarized below are some precautions to adhere to in order to ensure long life and trouble-free operation with 
the VL-2000.
r  Do not turning the POWER switch “on” or “off” while transmitting.
r  When changing bands, always make certain that the VL-2000 is set for the same band as the transceiver before 
transmitting, and that the proper antenna is connected.
  Remember that, when the VL-2000 is switched “off” the INPUT-1 jack is automatically connected to the ANT
1 jack and the INPUT-2 jack is automatically connected to the ANTDIRECT jack.
r  Reduce the drive power (set the ATT switch to “on”), if the exciter output which you connected exceeds 100 
watts PEP.
FCC ID: K6620321X70
Vertex Standard Co., Ltd.

18 VL-2000 Operating Manual
Operation
AuTomATic AnTennA Tuner operATion
The Automatic Antenna Tuner built into the VL-2000 is crafted to ensure a 50-Ohm load for the nal amplier stage of 
the linear amplier. We recommend the Automatic Antenna Tuner be used whenever you operate the VL-2000.
Advice:
r  The VL-2000 Automatic Antenna Tuner, being located inside the station, only adjusts the impedance presented to the 
transmitter at the station end of your coaxial cable feedline. It does not “tune” the SWR at the antenna feedpoint itself. 
When designing and building your antenna system, we recommend that every effort be made to ensure a low SWR at 
the antenna feedpoint.
r  The VL-2000 Automatic Antenna Tuner includes 470 memories for tuning data. These memory allocation is described 
in the bottom chart.
r  The VL-2000 Automatic Antenna Tuner is designed to match impedances within the range of 16.5 Ohms to 150 Ohms, 
corresponding to an SWR of 3:1 or less on the HF amateur bands (6 meter amateur band: 25 Ohms to 100 Ohms, corre-
sponding to an SWR of 2:1 or less). Accordingly, simple non-resonant whip antennas, along with random-length wires 
and the “G5RV” antenna (on most bands) may not be within the impedance matching range of the Automatic Antenna 
Tuner.
r  The VL-2000 Automatic Antenna Tuner is located between the nal amplier and the rear-panel antenna jack; recep-
tion is not affected by the Automatic Antenna Tuner.
1.  Conrm the operating band of the VL-2000 is same 
as the exciter.
2.  Press the TUNE button briey to place the Automatic 
Antenna Tuner in the transmit line. The TUNE LED 
will glow red.
3.  Press and  hold the  TUNE button for  1/2  second to 
begin automatic tuning.  The transmitter will be en-
gaged, and the red TUNE LED will blink while tun-
ing is in progress. When the  optimum  tuning point 
has been reached, the transceiver (and VL-2000) will 
return to receive, and the TUNE LED will glow red 
steadily (instead of blinking).
  4.  To  disconnect the Automatic  Antenna  Tuner 
from the transmit line, press the TUNE button briey. 
The  TUNE  LED will  turn off, confirming that the 
Automatic Antenna Tuner has been turned off. In the 
“off” mode, the transceiver will be directly connected 
to the coaxial cable connected to your antenna, and it 
will operate based on whatever impedance is present 
at the station end of the coax.
memory chAnnel AllocATionS
bAnd memory chAnnel STep
1.8 MHz 20 channels for each ANT Jack (x5) 10 kHz
3.5 MHz 25 channels for each ANT Jack (x5) 20 kHz
7 MHz 6 channels for each ANT Jack (x5) 50 kHz
10 MHz 1 channel for each ANT Jack (x5) ---
14 MHz 5 channels for each ANT Jack (x5) 100 kHz
18 MHz 1 channel for each ANT Jack (x5) ---
21 MHz 6 channels for each ANT Jack (x5) 100 kHz
24 MHz 1 channel for each ANT Jack (x5) ---
28 MHz 9 channels for each ANT Jack (x5) 200 kHz
50 MHz 20 channels for each ANT Jack (x5) 200 kHz
Advice
The VL-2000 Automatic Antenna Tuner makes a 
note of the positions of the tuning capacitors and 
the selected inductors when  the tuning result  is 
better than SWR 1.5:1. This eliminates the  need 
to re-tune every time you return to a frequency on 
which you already have completed the tuning pro-
cess.
noTe
The VL-2000 Automatic Antenna Tuner does not 
tuning in the following situations:
r  The exciter (transceiver) is not transmitted.
r  No carrier.
r  Low injection level.
r  Antenna SWR is more than 3.0: 1.
  (short-circuit or open-circuit)
r  Tuning result is more than 3.0: 1.
reSeTTinG The AnTennA TuninG dATA
The VL-2000 can be reset so as to  clear the an-
tenna  tuner tuning data; this will be reset to the 
factory default.
To reset the Antenna Tuning Data, press and hold 
in the TUNE button while you turn the VL-2000 
on.
FCC ID: K6620321X70
Vertex Standard Co., Ltd.

19VL-2000 Operating Manual
Operation
So2r FeATure
The SO2R (Single Operator Two Radios) feature allows 
you to  receive  the two signals by  the two transceivers 
simultaneously, when connects the two radios to the VL-
2000. Furthermore, you to operate the VL-2000 without 
changing the INPUT switch. The VL-2000 switches the 
input to the transceiver side which transmitted automati-
cally, regardless the INPUT switch setting.
To activate the SO2R feature, turn “on” the SO2R switch 
on the rear panel of the VL-2000.
noTe
r  The VL-2000 Automatic Antenna Tuner works 
only to the transceiver which connected to the 
INPUT jack that is determined by the INPUT 
switch.
r  Cannot  select the same  antenna in  INPUT 1 
and INPUT2 while SO2R feature is activated.
Advice
Even  if  the SO2R switch is  “off”, you can con-
nect  the  two transceivers deservedly. However, 
you must switch the INPUT switch to the position 
which is the transceiver that is transmitted manu-
ally  and you can not  receive the signal  with  the 
other transceiver while the transceiver is transmit-
ted. 
AnTennA direcT FeATure
The ANTENNA  DIRECT feature outputs the INPUT 
2 signal to the ANTDIRECT jack directly after having 
passed the Linear Amplier and the Automatic Antenna 
Tuner.  As a  result,  the transmit signal  does not  pass  a 
complicated antenna change circuit, to  keep the  loss at 
the minimum. 
To activate the ANTENNA  DIRECT feature, turn “on” 
the DIRECT switch on the rear panel of the VL-2000.
imporTAnT noTe
When activates the ANTENNA DIRECT feature, 
the all ANT LED (ANT1 ~ ANT4) turns “off”, 
conrming that the ANTENNA DIRECT feature 
has been activated.
FCC ID: K6620321X70
Vertex Standard Co., Ltd.

20 VL-2000 Operating Manual
SympTom probAble cAuSe remedy
Fails to power up. POWER Cables. Check the connections of the POWER Cables. 
Operating band does not change. BANDDATA Cable or CNTL Cable. Check the connections of the BANDDATA Cable. 
TX power output does not appear. Connection Cable  between  the transceiver 
and VL-2000.
Check the connections of the Connection  cable  between the 
transceiver and VL-2000. 
Antenna Cable. Check the connections of the Antenna Cable.
INPUT Switch. Set the INPUT switch to the position where the transceiver is 
connected.
OPERATE Switch. Turn “on” the OPERATE switch.
TX power output does not appear.
(PROTECT LED blinks red)
Excessive the exciter power. 
(ATT LED blinks red)
r Reduce the exciter power to the 100 watts.
r Turn “on” the ATT switch.
Excessive the output power.
(PO METER LED blinks red)Check the connections of the ALC cable.
Incorrect the operating band or out from the 
amateur band.
(one of the BAND LED blinks red)
r Set the BAND switch to the correct band.
r Set the transceiver’s frequency in the amateur band.
High Temperature of the Power Transistor. Stop the transmission immediately, then  wait till temperature 
of the Power Amplier falls.
Unbalance the  power  combine circuit of the 
nal transistor. (OPERATE LED blinks red)
Stop  the transmission  immediately, then  contact your  Vertex 
Standard dealer.
High or Low drain voltage.
(VD METER LED blinks red)
Stop  the transmission  immediately, then  contact your  Vertex 
Standard dealer.
Excessive  the  drain current  of  the Power 
Transistor. (IDD METER LED blinks red)
Stop  the transmission  immediately, then  contact your  Vertex 
Standard dealer.
Low Transmit Power Connection Cable between the transceiver 
and VL-2000.
Check  the connections of the Connection  Cable between the 
transceiver and VL-2000. 
Lower exciter power. Adjust the output power of the exciter.
ALC voltage. Adjust the ALC voltage.
Antenna miss-matching. Adjust the antenna matching (Set the SWR to better than 2.0:1).
Low AC power. Prepare 220 V AC for 1.5 kW operation. 
Antenna Tuner does not operate. Connection Cable between the transceiver 
and VL-2000.
Check  the connections of the Connection  Cable between the 
transceiver and VL-2000. 
HI-SWR LED glows red. Antenna miss-matching.
(SWR is more than 2.0:1) Adjust the antenna matching.
HI-SWR LED blinks red. Antenna miss-matching.
(SWR is more than 3.0:1)
r Adjust the antenna matching.
r Check the connections of the Antenna Cable.
ATT LED blinks red. Excessive the exciter power. Turn “on” the ATT switch.
Trouble Shooting
FCC ID: K6620321X70
Vertex Standard Co., Ltd.

21VL-2000 Operating Manual
GenerAl
Frequency Coverage:        1.8 MHz ~ 50 MHz Amateur Bands
Operating Mode:         SSB, CW, AM, FM, RTTY
Input:            INPUT 1/INPUT 2 (Two System)
Input Impedance:         50 W, unbalanced, Type-M connector
Excitation Power:         100 watt or 200 watt (@ATT ON) 
Output:            ANT 1 ~ ANT 4 (Four System) plus
            ANT DIRECT (Sub Antenna System: INPUT 2 1  ANT DIRECT)
Output Impedance:        50 W, unbalanced, Type-M connector
Power Output:  1500/500 Watts  (HI/LOW: 1.8 MHz ~ 28 MHz Amateur Bands)
  1000/500 Watts  (HI/LOW: 50 MHz Amateur Bands)
    @ 220V AC Input to VP-2000 Power Supply
  500 Watts  (1.8 MHz ~ 50 MHz Amateur Bands)
    @ 120V AC Input to VP-2000 Power Supply
Continuous Transmission Period:      100% @ 1500 Watts
Spurious Radiation:        better than –60 dB @ 1.8 - 28 MHz Amateur Bands
            better than –73 dB @ 50 MHz Amateur Band
Operating Band Change:        Manual/Automatic (Automatic: requires the BAND DATA Cable)
Final Transistor:          VRF2933 x 8
Final Amplier Circuit Type:      Class-AB, Push-pull Circuit, Power Combine
Cooling System:          Forced air-cooling (Variable wind velocity)
Operating Temperature Range:      +14 °F ~ +104 °F (–10 °C ~ +40 °C) @1500 Watts Operation
            +14 °F ~ +122 °F (–10 °C ~ +50 °C) @500 Watts Operation 
Case Size (WxHxD):        19” x 7” x 20” (482 x 177 x 508 mm)
Weight (Approx.):        53.4 lbs (24.2 kg)
AuTomATic AnTennA Tuner SecTion
Impedance Matching Range:      25 to 100 W, unbalanced @ 1.8 MHz Amateur Band
            16.6 to 150 W, unbalanced @ 3.5 ~ 50 MHz Amateur Bands
Matching Time:          less than 3 seconds
Matched SWR:          1.5:1 or better
Specications are subject to change, in the interest of technical improvement, without notice or obligations.
Specications
Part 15.21:  Changes or modications to this device not expressly approved by Vertex Standard 
could void the user’s authorization to operate this device.
FCC ID: K6620321X70
Vertex Standard Co., Ltd.

Copyright 2011
VERTEX STANDARD CO., LTD.
All rights reserved.
No portion of this manual
may be reproduced without
the permission of
VERTEX STANDARD CO., LTD.
FCC ID: K6620321X70
Vertex Standard Co., Ltd.