FCC ID: K6620321X70 LINEAR AMPLIFIER

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 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 Amplifier Operation.......................................................................................................................................... 17 Automatic Antenna Tuner Operation ........................................................................................................................... 18 SO2R (Single Operator Two Radios) Feature .............................................................................................................. 19 ANTENNA DIRECT Feature ...................................................................................................................................... 19 Trouble Shooting......................................................................................................................................................................20 Specifications ........................................................................................................................................................................... 21 General Description Congratulations! You are now the owner of the Yaesu VL-2000 Linear Amplifier, 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 amplifier!

The VL-2000 is an all-solid-state linear amplifier 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 five 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 amplifier. 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 Amplifier. 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!

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 VL-2000 Operating Manual 1 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 transceivers 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). This indicator glows red when the VL-2000 is trans-

TX Indicator mitting. OPERATE Switch VL-2000 on and off. glow red. This switch turns the power amplifier section of the When the power amplifier is activated, the LED will 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. 2 VL-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 INPUT 1 and INPUT 2 jacks on the rear panel. The INPUT 1 or INPUT 2 LED will glow red to indicate which exciter is in use. Note: This switch does not effect while transmitting. This LED blinks red when the Linear Amplifier is ab-

PROTECT LED normal. TUNE Button This is the on/off switch for the VL-2000s Automatic Antenna Tuner. Press this button briefly, 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 briefly, 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 amplifier. 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 transceivers 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. VL-2000 Operating Manual 3 Rear Panel Connectors & Switches REMOTE Switch When this switch is set to on position, the VL-

2000s POWER switch will be controlled by the transceivers 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 INPUT 2 jack de-

liver to the ANT DIRECT connector directly, without passing the Linear Amplifier 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 INPUT 1 and INPUT 2 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 INPUT 1 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 INPUT 2 jack. ACC-1 Jack This D-SUB 15-pin Jack is connected to the Yaesu transceiver which is connected to the INPUT 1 jack, to allow automatic band selection, T/R control, and power on/off control.

: +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 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.

: +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 4 VL-2000 Operating Manual Rear Panel Connectors & Switches BAND-DATA 2 Jack This 8-pin DIN Jack is connected to the Yaesu trans-

ceiver which is connected to the INPUT 2 jack, to al-

low automatic band selection.

: +13.5 V (IN)

: TX GND

: GND

: BAND DATA A

: BAND DATA B

: BAND DATA C

: BAND DATA D

: TX INH (OUT) STBY 2 Jack When this RCA jack is shorted to ground, it put the VL-2000 into the transmit mode. Connect this jack to the TX GND jack of the exciter which is connected to the INPUT 2 jack. ALC OUT 2 Jack This RCA jack provide the ALC (output) voltage for control of the exciters RF drive level which is con-

nected to the INPUT 2 jack. INPUT 1/2 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. DC IN 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 amplifier 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. VL-2000 Operating Manual 5 Installation & Interconnections FTdX9000 SerieS Be sure both FTDX9000 and VL-2000 are turned off, then follow the installation recommendation contained in the illus-

tration. To link the FTDX9000 and VL-2000 POWER switch, set the VL-2000 REMOTE switch to the ON position. T N A 2 1 converSion cAble 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 markets RCA Jack. 7-pin DIN Plug RCA Jack Pin 3 GND Pin 7 TX REQ 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 amplifier, 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:

INPUT 1 exciter: delivers to the ANT 1 connector directly. INPUT 2 exciter: delivers to the ANT DIRECT 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. 6 VL-2000 Operating Manual Installation & Interconnections Be sure both FTDX5000 and VL-2000 are turned off, then follow the installation recommendation contained in the illus-

tration. FTdX5000 To link the FTDX5000 and VL-2000 POWER switch, set the VL-2000 REMOTE switch to the ON position. 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 amplifier, 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-2000s POWER switch is turned off, the exciter output is delivered as follows:

INPUT 1 exciter: delivers to the ANT 1 connector directly. INPUT 2 exciter: delivers to the ANT DIRECT 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. VL-2000 Operating Manual 7 Installation & Interconnections Be sure both FT-2000/D and VL-2000 are turned off, then follow the installation recommendation contained in the illus-

tration. FT-2000/d To link the FT-2000/D and VL-2000 POWER switch, set the VL-2000 REMOTE switch to the ON position. 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 amplifier, 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:

INPUT 1 exciter: delivers to the ANT 1 connector directly. INPUT 2 exciter: delivers to the ANT DIRECT 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. 8 VL-2000 Operating Manual Installation & Interconnections Be sure both FT-950 and VL-2000 are turned off, then follow the installation recommendation contained in the illustra-

tion. FT-950 To link the FT-950 and VL-2000 POWER switch, set the VL-2000 REMOTE switch to the ON position. 1 ANT 2 DC IN INPUT: DC 13.8 V 22 A

-TUNE GND TO FROM ROT LINEAR TUNER RTTY / PKT PTT REC REM EXT SPKR KEY

-TUNE DMU CAT PGM-SW imporTAnT noTe !

r The FT-950 enables to connect only to the INPUT 2 connector. Set the INPUT switch to the INPUT 2 side after as-

semble the equipment. r The ALC cable must be connected between the transceiver and VL-2000 to prevent overdrive of the amplifier, 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-2000s POWER switch is turned off, the exciter output is delivered as follows:

INPUT 1 exciter: delivers to the ANT 1 connector directly. INPUT 2 exciter: delivers to the ANT DIRECT 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. VL-2000 Operating Manual 9 Installation & Interconnections Be sure both FT-450/D and VL-2000 are turned off, then follow the installation recommendation contained in the illus-

tration. FT-450/d To link the FT- 450 and VL-2000 POWER switch, set the VL-2000 REMOTE switch to the ON position. INPUT DC 13.8V 22A ANT DATA TUNER LINEAR CAT EXT SPKR GND imporTAnT noTe !

r The FT-450/D enables to connect only to the INPUT 2 connector. Set the INPUT switch to the INPUT 2 side after assemble the equipment. r The ALC cable must be connected between the transceiver and VL-2000 to prevent overdrive of the amplifier, 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:

INPUT 1 exciter: delivers to the ANT 1 connector directly. INPUT 2 exciter: delivers to the ANT DIRECT 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. 10 VL-2000 Operating Manual Installation & Interconnections Be sure both FT-897/D and VL-2000 are turned off, then follow the installation recommendation contained in the illus-

tration. FT-897/d To link the FT-897/D and VL-2000 POWER switch, set the VL-2000 REMOTE switch to the ON position. INPUT DC13.8V 22A GND C AT /

LINEAR DATA ACC KEY EXT SPKR HF/50MHz ANT 144/430MHz CHG A CHG B imporTAnT noTe !

r The FT-897/D enables to connect only to the INPUT 2 connector. Set the INPUT switch to the INPUT 2 side after assemble the equipment. r The ALC cable must be connected between the transceiver and VL-2000 to prevent overdrive of the amplifier, 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-2000s POWER switch is turned off, the exciter output is delivered as follows:

INPUT 1 exciter: delivers to the ANT 1 connector directly. INPUT 2 exciter: delivers to the ANT DIRECT 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. VL-2000 Operating Manual 11 Installation & Interconnections Be sure both FT-857/D and VL-2000 are turned off, then follow the installation recommendation contained in the illus-

tration. FT-857/d To link the FT-897/D and VL-2000 POWER switch, set the VL-2000 REMOTE switch to the ON position. imporTAnT noTe !

r The FT-857/D enables to connect only to the INPUT 2 connector. Set the INPUT switch to the INPUT 2 side after assemble the equipment. r The ALC cable must be connected between the transceiver and VL-2000 to prevent overdrive of the amplifier, 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:

INPUT 1 exciter: delivers to the ANT 1 connector directly. INPUT 2 exciter: delivers to the ANT DIRECT 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. 12 VL-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. To link the Transceivers and VL-2000 POWER switch, set the VL-2000 REMOTE switch to the ON position. 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 amplifier, 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-2000s POWER switch is turned off, the exciter output is delivered as follows:

INPUT 1 exciter: delivers to the ANT 1 connector directly. INPUT 2 exciter: delivers to the ANT DIRECT 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. VL-2000 Operating Manual 13 Installation & Interconnections GenerAl TrAnSceiver Be sure both transceiver and VL-2000 are turned off, then follow the installation recommendation contained in the illus-

tration. VL-2000 imporTAnT noTe !

r The general transceiver enables to connect only to the INPUT 2 connector. Set the INPUT switch to the INPUT 2 side after assemble the equipment. r The ALC cable must be connected between the transceiver and VL-2000 to prevent overdrive of the amplifier, 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:

INPUT 1 exciter: delivers to the ANT 1 connector directly. INPUT 2 exciter: delivers to the ANT DIRECT connector directly. 14 VL-2000 Operating Manual Installation & Interconnections noTe VL-2000 Operating Manual 15 Operation prepArATionS To transmit the high quality RF signal, adjust the ALC voltage in the following procedures, before operating. imporTAnT noTe r Confirm 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. W power output. r The VL-2000 requires 220 Volt AC power for 1.5 kW operation, while 117 Volt AC power is possible at the 500 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 transceivers operating band. 4. Set the operation mode of the exciter to the CW mode. off. 5. Set the OPERATE switch and TUNE button to both 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-

citers 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 Amplifier), the cooling fan turns off for enabling the quiet monitoring. 16 VL-2000 Operating Manual Operation lineAr AmpliFier operATion Before operating, please check the following items:

r Confirm whether wiring does not have a miss wiring again. r Confirm 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 Confirm that the ATT switch is set to on position, when connect the exciter having exceed 100 watts PEP. r Confirm 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 transceivers 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 transceivers 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. LED will glow red. 6. Set the OPERATE switch to on. The OPERATE 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 transceivers meter) on voice peaks; on CW, the ALC indication should be just enough to cause slight meter deflection. 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 satisfied. 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 ANT DIRECT jack. r Reduce the drive power (set the ATT switch to on), if the exciter output which you connected exceeds 100 watts PEP. VL-2000 Operating Manual 17 Operation AuTomATic AnTennA Tuner operATion The Automatic Antenna Tuner built into the VL-2000 is crafted to ensure a 50-Ohm load for the final amplifier stage of the linear amplifier. 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 final amplifier and the rear-panel antenna jack; recep-

tion is not affected by the Automatic Antenna Tuner. 1. Confirm the operating band of the VL-2000 is same as the exciter. 2. Press the TUNE button briefly 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 briefly. 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. 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. r Tuning result is more than 3.0: 1.

(short-circuit or open-circuit) 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. memory chAnnel AllocATionS bAnd 1.8 MHz 3.5 MHz 7 MHz 10 MHz 14 MHz 18 MHz 21 MHz 24 MHz 28 MHz 50 MHz memory chAnnel 20 channels for each ANT Jack (x5) 25 channels for each ANT Jack (x5) 6 channels for each ANT Jack (x5) 1 channel for each ANT Jack (x5) 5 channels for each ANT Jack (x5) 1 channel for each ANT Jack (x5) 6 channels for each ANT Jack (x5) 1 channel for each ANT Jack (x5) 9 channels for each ANT Jack (x5) 20 channels for each ANT Jack (x5) STep 10 kHz 20 kHz 50 kHz

100 kHz

100 kHz

200 kHz 200 kHz 18 VL-2000 Operating Manual Operation AnTennA direcT FeATure The ANTENNA DIRECT feature outputs the INPUT 2 signal to the ANT DIRECT jack directly after having passed the Linear Amplifier 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 (ANT 1 ~ ANT 4) turns off, confirming that the ANTENNA DIRECT feature has been activated. 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 INPUT 2 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. VL-2000 Operating Manual 19 Trouble Shooting SympTom Fails to power up. Operating band does not change. TX power output does not appear. TX power output does not appear.

(PROTECT LED blinks red) Low Transmit Power Antenna Tuner does not operate. HI-SWR LED glows red. HI-SWR LED blinks red. ATT LED blinks red. probAble cAuSe POWER Cables. BAND DATA Cable or CNTL Cable. Connection Cable between the transceiver and VL-2000. Antenna Cable. INPUT Switch. OPERATE Switch. Excessive the exciter power.

(ATT LED blinks red) Excessive the output power.

(PO METER LED blinks red) Incorrect the operating band or out from the amateur band.

(one of the BAND LED blinks red) High Temperature of the Power Transistor. Unbalance the power combine circuit of the final transistor. (OPERATE LED blinks red) High or Low drain voltage.

(VD METER LED blinks red) Excessive the drain current of the Power Transistor. (IDD METER LED blinks red) Connection Cable between the transceiver and VL-2000. Lower exciter power. ALC voltage. Antenna miss-matching. Low AC power. Connection Cable between the transceiver and VL-2000. Antenna miss-matching.

(SWR is more than 2.0:1) Antenna miss-matching.

(SWR is more than 3.0:1) Excessive the exciter power. remedy Check the connections of the POWER Cables. Check the connections of the BAND DATA Cable. Check the connections of the Connection cable between the transceiver and VL-2000. Check the connections of the Antenna Cable. Set the INPUT switch to the position where the transceiver is connected. Turn on the OPERATE switch. r Reduce the exciter power to the 100 watts. r Turn on the ATT switch. Check the connections of the ALC cable. r Set the BAND switch to the correct band. r Set the transceivers frequency in the amateur band. Stop the transmission immediately, then wait till temperature of the Power Amplifier falls. Stop the transmission immediately, then contact your Vertex Standard dealer. Stop the transmission immediately, then contact your Vertex Standard dealer. Stop the transmission immediately, then contact your Vertex Standard dealer. Check the connections of the Connection Cable between the transceiver and VL-2000. Adjust the output power of the exciter. Adjust the ALC voltage. Adjust the antenna matching (Set the SWR to better than 2.0:1). Prepare 220 V AC for 1.5 kW operation. Check the connections of the Connection Cable between the transceiver and VL-2000. Adjust the antenna matching. r Adjust the antenna matching. r Check the connections of the Antenna Cable. Turn on the ATT switch. 20 VL-2000 Operating Manual GenerAl Frequency Coverage:

Operating Mode:

Input:

Input Impedance:

Excitation Power:

Output:

Output Impedance:

Power Output:

Continuous Transmission Period:

Spurious Radiation:

Operating Band Change:

Final Transistor:

Final Amplifier Circuit Type:

Cooling System:

Operating Temperature Range:

Case Size (WxHxD):

Weight (Approx.):

Specifications 1.8 MHz ~ 50 MHz Amateur Bands SSB, CW, AM, FM, RTTY INPUT 1/INPUT 2 (Two System) 50 W, unbalanced, Type-M connector 100 watt or 200 watt (@ATT ON) ANT 1 ~ ANT 4 (Four System) plus ANT DIRECT (Sub Antenna System: INPUT 2 1 ANT DIRECT) 50 W, unbalanced, Type-M connector 1500/500 Watts (HI/LOW: 1.8 MHz ~ 28 MHz Amateur Bands) 1000/500 Watts (HI/LOW: 50 MHz Amateur Bands) 500 Watts 100% @ 1500 Watts better than 60 dB @ 1.8 - 28 MHz Amateur Bands better than 73 dB @ 50 MHz Amateur Band Manual/Automatic (Automatic: requires the BAND DATA Cable) VRF2933 x 8 Class-AB, Push-pull Circuit, Power Combine Forced air-cooling (Variable wind velocity)

+14 F ~ +104 F (10 C ~ +40 C) @1500 Watts Operation

+14 F ~ +122 F (10 C ~ +50 C) @500 Watts Operation 19 x 7 x 20 (482 x 177 x 508 mm) 53.4 lbs (24.2 kg)

@ 220V AC Input to VP-2000 Power Supply

(1.8 MHz ~ 50 MHz Amateur Bands)

@ 120V AC Input to VP-2000 Power Supply AuTomATic AnTennA Tuner SecTion Impedance Matching Range:

Matching Time:

Matched SWR:

Specifications are subject to change, in the interest of technical improvement, without notice or obligations. 25 to 100 W, unbalanced @ 1.8 MHz Amateur Band 16.6 to 150 W, unbalanced @ 3.5 ~ 50 MHz Amateur Bands less than 3 seconds 1.5:1 or better Part 15.21: Changes or modifications to this device not expressly approved by Vertex Standard could void the users authorization to operate this device. VL-2000 Operating Manual 21 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.