Exhibit 6 page 1 of 16 Exhibit 6: User’s Manual External Radio Frequency Power Amplifier ACOM 1011 Model 1011 Array Solutions 2611 North Beltline Rd Suite 109 Sunnyvale, Texas 75182 USA Tel: 214 954 7140 fax: 214 954 7142 E-mail: info@arraysolutions.
Exhibit 6 page 2 of 16 TABLE OF CONTENTS `1. GENERAL INFORMATION .......................................................................................... 3 1-1. Introduction and Description .................................................................................................................. 3 1-2. Owner Assistance .................................................................................................................................... 3 1-3. Equipment Supplied .....................
Exhibit 6 page 3 of 16 1. GENERAL INFORMATION Congratulations on purchasing one of the finest HF amplifiers in the world today. ACOM is pleased that you have chosen one of our products, and we will endeavor to provide you with the information and support you need to enjoy your purchase for many years. We urge you to read all of the following materials before you embark on operating your new amplifier. 1-1.
Exhibit 6 page 4 of 16 • Band inclusion. The amplifier can be shipped with 10 and 12-meter capability disabled as required by the Federal Communications Commission (FCC), for United States users. Contact your dealer about enabling those bands. 1-5. Safety Considerations, Explicit Definitions The ACOM1011 HF Linear Amplifier is a Safety Class I unit.
Exhibit 6 page 5 of 16 2. INSTALLATION 2-1. Unpacking and Initial Inspection NOTE The first step to installation is to fully read this manual. Then, carefully inspect the shipping cartons for any physical damage. ACOM ships amplifiers in highly protected containers, but it cannot assure that mistreatment by shippers will not occur. If there is any such damage, notify your ACOM dealer immediately. Failure to do so may invalidate your warranty.
Exhibit 6 page 6 of 16 (e) (d) (a) (b) ---- (c) ---- Fig. 2-1 Connections a) Connect the station's grounding system to the wing-nut ground stud of the amplifier (on the rear panel, marked GND in Fig. 2-1). b) Connect a suitable coaxial cable between the transceiver output to the amplifier (rear panel) RF INPUT SO-239 connector, using PL-259 connector.
Exhibit 6 page 7 of 16 WARNING Before connecting the amplifier to your line (mains) supply, be sure that the line (mains) supply is correctly wired and is capable of providing the required current, i.e., up to 5 A from 240 V and 10 A from 120 V. As discussed earlier, it is very important that the ground lead is adequately sized and properly connected.
Exhibit 6 page 8 of 16 The button labeled A1-A2 (Section 4-4) changes the antenna output to either antenna 1 or antenna 2, according to the operator’s choice. It is the operator’s responsibility to connect suitable antennas to the ANT1 and ANT2 connectors on the rear panel of the amplifier. The red TX LED illuminates whenever the KEY-IN input is keyed (closed to ground), i.e., when the transceiver goes into the transmit mode. See Section 2-4(d).
Exhibit 6 page 9 of 16 A minimum 30 seconds cathode warmup time is required but 60 seconds is recommended by the tube producer. If you are not in a hurry, wait another 30 seconds after the green OPER LED has stopped flashing. 4-2. Changing Operate and Standby Modes The OPER button changes between two modes. When the green light above the button is illuminated, the amplifier will remain ready to operate, even automatically returning from standby after a high-drive protection trip.
Exhibit 6 page 10 of 16 It is advisable to adjust amplifier tuning when antennas have been changed, snow has fallen, new objects are in the near field of the antenna, etc. Such changes may affect antenna impedance. NOTE If you use more than one antenna on a band, the proper antenna must be selected prior to performing the tuning procedure outlined below. CAUTION To avoid damage not covered under warranty, do not switch the BAND switch knob while transmitting.
Exhibit 6 page 11 of 16 The TRI indicator will not illuminate until at least 20 W of forward power (output) is achieved. In the event successful matching cannot be accomplished, check the BAND switch position and antenna selection. Then check the antenna VSWR at the same drive frequency. c) Tuning hint. A benefit of TRI is that the knob positions are virtually independent. The plate-load resistance decreases to the right and increases to the left of the TRI center.
Exhibit 6 page 12 of 16 Do not open the amplifier. Cleaning the amplifier outer surface may be safely accomplished by using a piece of soft cotton cloth lightly moistened with clean water. 5-2. Fuses Replacement WARNING If your amplifier is only fitted with one line (mains) fuse, it is suitable for the European Community ONLY. Your dealer will check that your amplifier is correctly fused before it is shipped to you, based upon your indicated location.
Exhibit 6 page 13 of 16 reflected power and tuning quality, etc., are continuously monitored by the micro-controller. Many softwarederived protections are based on this information. * Detailed electrical schematic diagrams are available from ACOM or from your dealer on request.
Exhibit 6 page 14 of 16 Fig.5-1 ACOM1011 Simplified Schematic Diagram 5-5. Service Functions By pressing the OPER and RTTY buttons simultaneously, the upper LED bar-graph is switched to the service mode, which is indicated by both red bar-graph lights and the yellow G1 light illuminating. Pressing the OPER and RTTY buttons together again will select additional service measurement functions. Pressing them a final time will return the amplifier to the normal operating mode.
Exhibit 6 page 15 of 16 6. SPECIFICATIONS 6-1. Parameters a) Frequency Coverage: All amateur bands in the 1.8-29.7MHz frequency range; extensions and/or changes on request. b) Power Output: 700 W PEP or 500 W continuous carrier. c) Intermodulation Distortion: Better than 35 dB below rated output. d) Hum and noise: Better than 40 dB below rated output. e) Harmonic Output Suppression: Better than 50 dB below rated output.
Exhibit 6 page 16 of 16 d) LED bar-graphs for forward peak power and reflected power. e) Service visualization of grid 1 DC current, grid 2 DC voltage, and plate DC current. f) Tubes: two 4CX250B (7203) ceramic-metal tetrodes with a total plate dissipation of 500W (forced air cooling), grid-driven. 6-3. Storage and Shipment CAUTION Should it be necessary to ship the amplifier, use the original packing as described below.
