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Summary of Contents for Palstar Commander HF-2500 Magnum
- Page 1 COMMANDER HF-2500 COMMANDER HF-2500 M AGNUM 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. 2.5 28 June 2010...
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Page 2: Table Of Contents
Rear Panel View Front Panel View & Tuning Procedure Theory of Operation & Adjustments Warranty, Service, and Returns RF Deck View HF-2500 HV Power Supply Schematic Access Plate Illustration HV Power Supply Schematic AGNUM AC Mains & Step-Start Schematic Control Board Schematic Tuned Input &... -
Page 3: Introduction
Introduction The Commander HF-2500 and Commander HF-2500 M are class AB linear power AGNUM amplifiers. They have been designed for operation on all amateur frequencies from 1.80 MHz to 29.7 MHz, excluding the 30 meter band. Two Eimac 3CPX800A7 pulse rated ceramic-metal triodes configured in a grounded grid circuit allow for conservative operation at 1500 watts continuous carrier output. -
Page 4: Specifications
Specifications COMMANDER HF-2500/HF-2500 M AGNUM 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 60 Watts nominal at rated continuous carrier output. -
Page 5: Unpacking Instructions
234 VAC operation. AGNUM For best operation, you should use a dedicated 234VAC main capable of supplying 20 Amps of peak AC current. Commander Amplifiers manufactured for export are wired for 234 VAC or 200 VAC de- pending on the final destination. -
Page 6: Installation Procedure
AC Mains PCB. It is keyed so that it cannot be plugged in backwards. Make sure that the connector is pressed in until the lock tabs snap in place. Re-install top cover. This completes HF-2500 transformer installation. - Page 7 HF-2500 Magnum Transformer Installation Procedure Here is the transformer and its mount- ing screws Lift the transformer into amplifier chassis Position the transformer over the mounting holes in the chassis and insert the provided 1/4-20 Phillips head screws through the transformer mounting tabs and into the threaded inserts in the chassis plate and tighten.
- Page 8 It is keyed so that it cannot be plugged in backwards. Make sure that the connector halves are pressed together until the lock tabs snap in place. Dress the wires and connectors down out of the way This completes HF-2500 Magnum transformer installation.
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Page 9: Safety Warnings And Precautions
!! 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. -
Page 10: Connections
• Connect the Keyline jack on the rear of the HF-2500/HF-2500 M to the normally AGNUM open terminal of the relay jack on your transceiver. The Key jack on the HF-2500/HF-2500 has positive 5 VDC open circuit and requires the sinking of 15 mA of current AGNUM when pulled to ground. -
Page 11: 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 @ 20A BLACK GREEN... -
Page 12: Front Panel View & 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 13 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 120 mA of plate current. Apply 5 to 10 watts of RF drive, the plate current should rise slightly. If the plate current rises above 1200 mA, reduce drive.
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Page 14: Theory Of Operation & Adjustments
Plate voltage and Plate current are continuously displayed on the right-hand meter. The typical plate current under nominal rated output (1500 Watts) should range from approximately 700mA to 800mA on the HF-2500, and 900mA to 1100mA on the HF-2500 M , with an AGNUM absolute maximum of 1200mA. -
Page 15: High Voltage Supply
The front panel On/Off switch applies AC mains power to the controller circuitry which then controls AC power to the filament and HV transformers. In the HF-2500 approximately 900 VAC is applied to a full wave voltage doubler circuit. In the HF-2500 M... -
Page 16: Warranty, Service, And Returns
Limited Warranty Palstar Inc. warrants the Commander HF-2500 and HF-2500 M to be free from de- AGNUM fects in material and workmanship under normal use and service to the original buyer for a period of one (1) year from the date of delivery to that buyer (the “Warranty Period”). Pal- star Inc.’s obligation under this warranty is limited to repair or replacement of the product at it’s... -
Page 17: Rf Deck View
HF-2500/HF-2500 M RF Deck AGNUM... -
Page 18: Hf-2500 Hv Power Supply Schematic
Bottom View showing access plate Access Plate Removed HV Power Supply PCB Cathode and Filament Interface PCB... -
Page 19: Access Plate Illustration
HF-2500 HV Power Supply... -
Page 20: Magnum Hv Power Supply Schematic
HF-2500 Magnum HV Power Supply... -
Page 25: Amplifier Test Card
Amplifier Test Card... -
Page 26: Dual Meters Diagram
Dual Meters Grid Current: Scale Grid Current: Scale 0-60ma Single Tube 0-600ma Single Tube 0-120ma Two Tubes 0-1200ma Two Tubes 0-180ma Three Tubes Bottom 0-1800ma Three Tubes Bottom... -
Page 27: Meter Board
Meter Board Cathode Fuse... -
Page 28: Step-Start Board
Step-Start Board AC Main Fuse (20A) x 2 Interlock Step/Start Relays x 4... -
Page 29: Power Supply
Full Wave Bridge Power Supply Bottom... - Page 30 Palstar Incorporated 9676 N. Looney Rd., Piqua, OH 45356 USA Customer Service and Sales Telephone: 1-800-773-7931 Fax: 1-937-773-8003 Email: info@palstar.com...
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