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Summary of Contents for Palstar COMMANDER HF-2500 EXPORT
- Page 1 COMMANDER HF-2500 EXPORT Owner’s Manual PALSTAR, INC. Command Technologies Division 9676 N. Looney Road Piqua, Ohio 45356 U.S.A. Customer Service and Sales Telephone: 800-773-7931 International: 937-773-6255 Fax: 937-773-8003 E-mail: info@palstar.com Rev. 1.3 14 July 2010...
- Page 2 Table of Contents Introduction Safety Warnings and Precautions Unpacking Instructions HV Transformer Installation Connections Rear Panel View Front Panel View & Tuning Procedure Theory of Operation & Adjustments Warranty, Service, and Returns Specifications RF Deck View Access Plate Illustration HV Power Supply Schematic AC Mains &...
- Page 3 Introduction The Commander HF-2500 Export is class AB linear power amplifier. It has been designed for operation on all amateur frequencies from 1.80 MHz to 29.7 MHz, excluding the 30 meter band. Three Eimac 3CPX800A7 pulse rated ceramic-metal triodes configured in a grounded grid circuit allow for conservative operation at 2800 watts continuous carrier output.
- Page 4 !! WARNING !! CONTACT WITH VOLTAGES IN THIS AMPLIFIER CAN BE !!! FATAL!!! CAUTION: DO NOT attempt any type of service or repair on this amplifier without first removing the • AC power and allowing AT LEAST 10 MINUTES FOR THE HIGH VOLTAGE CAPACI- TORS TO BLEED OFF ! DO NOT operate this amplifier with the top or bottom covers removed.
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Page 5: Transformer Installation
UNPACKING Carefully remove the Commander HF2500 E Amplifier from its shipping carton XPORT making sure there is no damage evident from shipping. If there is any damage, notify the deliv- ering shipper immediately, fully describing the damage. The HV power transformer was shipped separately, as its weight would damage the cabinet in transit. - Page 6 HF-2500 E XPORT Transformer Installation Hook the snap rings on the provided lifting handle into the holes in the tabs on either end of the transformer Here is the lifting handle attached and ready for use. The transformer is HEAVY, so carefully lift it into place in the chassis.
- Page 7 Plug the first connector on the transformer into the mating one on the chassis wiring harness. It is keyed so that it cannot be plugged in back- wards. Make sure that the connector halves are pressed together until the lock tabs snap in place. Plug the second connector on the transformer into the mating one that comes from the AC control board.
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Page 8: Connecting Your Amplifier
Connecting Your Amplifier • Connect the RF output of your transceiver to the RF Input connector on the rear of the HF- 2500 E with 50 Ohm coaxial cable. XPORT • Connect the existing station antenna tuner or a Wattmeter and dummy load to the RF Output connector on the HF-2500 E with RG-8 or better coaxial cable. -
Page 9: Rear Panel View
Rear Panel View AC Mains Key Line RF Output Tuned Input Twistlock (to transceiver) (to Wattmeter Adjustments Connector & Antenna (One for each or Antenna band) Tuner) Ground RF Input Automatic Level Post (to transceiver) (from Control Adjust Transceiver) WHITE To 200/234VAC @ 30A BLACK GREEN... -
Page 10: Tuning Procedure
Tune Control Grid Current/ Transmit Plate Current/ Band Switch Relative Power Indicator Plate Voltage Meter Meter Status-Trip Indicator Load Control Standby/Operate Power Switch On/Off TUNING PROCEDURE Set the front panel controls to the following positions: ON - OFF Switch. STANDBY - OPERATE STANDBY BAND SWITCH DESIRED BAND... - Page 11 case it is inadvertently keyed when the switch is thrown). Key the exciter with no RF drive ap- plied. The red transmit LED should illuminate, and the meter should indicate approximately 150 mA of plate current. Apply 5 to 10 watts of RF drive, the plate current should rise slightly. If the plate current rises above 1800 mA, reduce drive.
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Page 12: Theory Of Operation
Theory Of Operation The Commander HF-2500 E uses three C.P.I. Eimac 3CPX800A7 pulse rated ce- XPORT ramic/metal triodes in a class AB grounded grid configuration. Nominal drive power of 20 to 65 Watts. This amplifier will operate on the following amateur bands: 160, 80, 40, 20, 15, 17, 12 and 10 meters. -
Page 13: High Voltage Supply
gain for normal operation as specified in its owners manual. 4. While speaking louder than normal into the microphone, adjust the ALC pot through the access hole on the rear panel . Adjust for 2800 Watts maximum output as indicated on an external peak reading Wattmeter. -
Page 14: Limited Warranty
(1) year from the date of delivery to that buyer (the “Warranty Period”). Palstar Inc.’s obligation under this warranty is limited to repair or replacement of the product at it’s option at the Palstar factory in Piqua, OH. - Page 15 Specifications COMMANDER HF-2500 E XPORT HF Linear Power Amplifier Band Coverage: 160, 80, 40, 20, 17, 15, 12, and 10 meter amateur radio bands. • Types of Emissions: SSB, FM, CW, AM, RTTY, SSTV. • Driving Power Required: 20 to 90 Watts nominal at rated continuous carrier output. •...
- Page 16 HF-2500 Export T...
- Page 17 Bottom View showing access plate Access Plate Removed HV Power Supply PCB Cathode and Filament Interface PCB...
- Page 18 HF-2500 E HV Power Supply XPORT...
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