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1 VL-1000 OOOOOPERATINGPERATINGPERATINGPERATINGPER ATING M M M M MANUALANUALANUALANUALANUALVERTEX STANDARD CO., Nakameguro, Meguro-Ku, Tokyo 153-8644, JapanVERTEX STANDARD Phyllis Drive, Cypress, California 90630, UK 12, Sun Valley Business Park, Winnall CloseWinchester, Hampshire, SO23 0LB, STANDARD HK 1306-1308, 13F., Millennium City 2, 378 Kwun Tong Road,Kwun Tong, Kowloon, Hong KongVERTEX STANDARD (AUSTRALIA) PTY., Ho Business Park, 10 Wesley Court, East Burwood, VIC, 3151 Page 1VL-1000 Operating ManualGeneral DescriptionCongratulations! You are now the owner of the yaesu VL-1000 Linear Amplifier, which bringsyou leading-edge technology for the ultimate in operating convenience and reliability.

2 We appreci-ate your investment in yaesu equipment, and wish you many years of satisfying operation usingyour new amplifier!The VL-1000 is an all-solid-state linear amplifier operating on the 160 through 6 meter amateurbands (USA version: 160-15 meters) at a power output level of 1000 Watts on CW and SSB (500 Watts on continuous data modes such as RTTY). The VL-1000 includes a built-in antenna tunerwith 240 memories for tuning data, and microprocessor control of the tuning circuitry. The VL-1000features input jacks for two different exciters, as well as four antenna jacks for connection ofantennas for different bands. Extensive self-test, system monitoring, and protection circuits areprovided, with status and tuning information being displayed on a huge Liquid Crystal separate VP-1000 Power Supply Unit provides the +48 Volts required by the PA transis-tors, as well as all required control voltages for the amplifier.

3 The VL-1000 normally is powered via220 Volt AC mains, although it can be operated, at the 500 Watt level, from 117 Volt AC encourage you to read this manual thoroughly before beginning installation and operationof your VL-1000 Linear Amplifier. The details regarding proper installation and operating advicecontained in these pages will help you derive maximum satisfaction from your new yaesu equip-ment. Be certain to observe all due safety precautions when using this high-power device!Supplied AccessoriesItem QuantityALC Cable (T9101489; 2 m) 1 Band Data Cable (T9101487A; 8-pin DIN 8-pin DIN, 2 m) 1 Control Cable (T9101491; D-sub 15-pin RCA, 2 m) 1 Page 2VL-1000 Operating ManualInstallationThe proper, safe installation of the VL-1000is not difficult to accomplish, using the guide-lines to !

4 Lethal AC and RF voltages are presentwithin the cabinets of the VL-1000 Lin-ear Amplifier and VP-1000 Power Sup-ply. Use extreme caution when open-ing the cabinet(s) to perform anyalignment or adjustment steps, andtake particular care to inspect inter-connection cables frequently to en-sure that they are in good is assumed that you possess tech-nical knowledge and experience con-sistent with your possession of anamateur radio license; this knowledgeand experience are important toolswhich will aid in the successful instal-lation of this apparatus. Should youhave any questions about the safe in-stallation of this equipment, consultyour yaesu dealer or seek the assis-tance of a professional Power Connections(using VP-1000 Power Supply)The VL-1000 is usually operated from 220 Volt (nominal) AC power.

5 With 220 Volt inputto the VP-1000 Power Supply, full (1000 W)power output will be obtained from the VL-1000, while 117 Volt input to the VP-1000 ispossible at the 500 Watt power output advanced switching-regulator powersupply used in the matching VP-1000 PowerSupply does not require any transformer re-wiring, nor any changing of a switch position;the power supply will operate from either 220or 117 Volt line voltages without , the AC power cable/plug configu-ration will be somewhat different, dependingon the country in which you purchased youramplifier. In some countries, the VP-1000 isshipped with the standard 220 Volt connectorappropriate for your location. In those areaswhere there are multiple 220 Volt connectorsin common use, the VP-1000 is shipped with-out the power connector; one may be obtainedat a local hardware or electrical supply diagrams of the common 220 and117 Volt AC connectors in use are shown be-low.

6 When wiring your own connector, be ab-solutely certain to observe the proper polarityon the pin connections. Consult with an elec-trician if you have any doubts about your wir-ing!Be sure that your house wiring is capableof sufficient current capacity on the 220 Voltcircuit to be used, especially if this circuit isshared with household appliances. It alwaysis preferable to operate the VL-1000 from adedicated 220 Volt circuit with its own or ExciterInterconnectionsThe interface wiring to the transceiver or trans-mitter which drives the VL-1000 consists of:(A) A 50 coaxial cable for carrying RF drivepower from each exciter to the amplifier;(B) A 2-conductor transmit/receive controlcable which provides a closure to groundsignal from the transceiver to the amplifierduring transmission;(C) A (supplied) 2-conductor ALC (AutomaticLevel Control) line, used to limit the drivelevel from the exciter to the amplifier.

7 And(D) When using a compatible yaesu trans-UK PlugAustralianPlugEuropeanPlugUSAPlug(vi ewed from plug prong side)VP-1000 AC Cable wiring(European version)( version)Page 3VL-1000 Operating ManualInstallationFT-920/VL-1000FT-1000M P/FT-650/VL-1000nected to the INPUT 1/PTT 1/ALC 1 jacks, andthat all cables from exciter #2 are connectedto the INPUT 2/PTT 2/ALC 2 jacks. When us-ing a BAND DATA cable for interconnection, youdo not need the PTT cable for the correspond-ing exciter, as the T/R control signal will bemade via the BAND DATA , a BAND DATA cable may be con-nected which provides automatic bandchange and T/R control (thus eliminatingthe need for cable (B) above), and +48 VDC supply voltage On/Off control (if theREMOTE switch on the rear panel of theVL-1000 is set to the ON position).

8 Typical installation diagrams are shownbelow. When two exciters are utilized, be cer-tain that all the cables from exciter #1 are con-Page 4VL-1000 Operating Manualconnections labeled TX GND on the rear panelof the transceiver; do not, however, use thetransceiver s PTT jack, as it was designed forPTT input (via a footswitch, etc.), not for am-plifier Amplifier Tune-UpIf you connect the supplied control cable be-tween the transceiver s PTT or REMOTE jack andthe VL-1000 s BAND-DATA 2 jack, the trans-ceiver will automatically transmit when youpress the amplifier s front panel F SET key(make sure that the MODE switch of the trans-ceiver is set to CW, RTTY, or some other con-tinuous mode, and set the DRIVE or RF PWRcontrol fully clockwise, if you want to performantenna tuning).

9 To accomplish this function,pin 11 of the BAND-DATA 2 jack closes thetransceiver s PTT or REMOTE jack to ground, thusplacing the transceiver in the transmit Amplifier Tune-Upusing FT-1000MP TransceiverWhen using the VL-1000 in conjunction withthe FT-1000MP transceiver, the front panel FSET key may be used to initiate an automatictuning procedure for the amplifier. In order toaccomplish this, Menu Item 7-9 on the FT-1000MP must be set to KEYER (which is itsdefault value), and a control cable must be con-nected between the FT-1000MP s REMOTE jackand the VL-1000 s BAND-DATA 2 jack. Therequired wiring for this cable is shown ConnectionsAs many as four HF or 50 MHz antennasmay be connected to the rear panel Antennajacks, labeled ANT 1 ~ ANT 4.

10 The antenna tobe used on a particular band will be memo-rized once you make the selection manuallyvia the front panel ANT switch. See the Op-eration section of this manual for more ConnectionsThe VL-1000 provides negative-going ALC,which provides a negative voltage to the ex-citer which begins to appear when sufficientdrive power from the exciter is being received;the voltage becomes of greater (negative)magnitude if the drive is increased, so as toprevent overdrive of the amplifier. The voltagerange provided from the VL-1000 is 0 to 10 Volts DC, and this is compatible with all Yaesutransceivers as well as many exciters of othermanufacture. At 1000 Watts of output power,the typical voltage generated for use withYaesu transceivers is about 4 V ALC cable must be connected betweenthe transceiver and VL-1000 to prevent over-drive of the amplifier, and especially to facili-tate the proper operation of the protection cir-cuitry if sudden antenna system problemsshould cause the SWR to rise to ConnectionsThese jacks, labeled PTT 1 and PTT 2, ac-cept T/R control signals from your the center pin of one of these PTTjacks will cause the amplifier to be placed inthe Transmit jacks utilize a positive voltage ( 5 VDC) at very low current (10 mA maximum)