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Summary of Contents for Acom 1003
- Page 1 ACOM 1003 HF + 6 m Linear Power Amplifier User's Manual Installation, Operation and Maintenance OUTSTANDING HF POWER PRODUCTS OUTSTANDING HF POWER PRODUCTS June 2025...
- Page 2 User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier This manual is for electronic distribution mainly. If you have it on paper and you no longer need it, please, recycle it! The latest versions of our User's Manuals are available at www.acom-bg.com...
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Page 3: About Documentation
ACOM products and services. Further, this User's Manual is provided AS IS and ACOM shall not be liable for possible errors contained herein. - Page 4 User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier Title of Documentation ACOM 1003 HF + 6 m Linear Amplifier User's Manual Installation, Operation and Maintenance Type of Documentation User's Manual Purpose of Documentation This manual explains Installation, Operation and Maintenance of the ACOM 1003 HF + 6 m Linear Amplifier.
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Page 5: Table Of Contents
User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier Contents ABOUT DOCUMENTATION ..........................3 GENERAL INFORMATION ........................... 9 1.1. Introduction and Description ......................9 1.2. To the Reader of this Manual ......................10 1.3. Distinctive Features ........................11 1.4. - Page 6 User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier 5.3. Step by Step Tune-up Instructions ....................51 5.4. Optional Information and Tuning Hints ..................54 INFORMATION SCREENS .......................... 56 AUTO-PROTECTION SYSTEM ........................57 7.1. First Level of Protection - OPER Light Flashing ................57 7.2.
- Page 7 User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier Figures Figure 1-1 | ID (identification) label/plate, example ..................13 Figure 1-2 | External fan ..........................14 Figure 1-3 | ACOM L-PROT 2000 lightning protector ..................15 Figure 1-4 | Rear panel - GND connection ...................... 16 Figure 2-1 | Packaging carton (outside view) ....................
- Page 8 User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier Tables Table 1-1 | Production versions history ......................12 Table 1-2 | Package contents .......................... 13 Table 1-3 | Optional equipment ........................14 Table 2-1 | Power cord connections ....................... 28 Table 5-1 | Approximate tuning presets for a 50 Ω...
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Page 9: General Information
Congratulations on purchasing one of the finest HF + 6 m linear 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. -
Page 10: To The Reader Of This Manual
1.2. To the Reader of this Manual This document is written for the technically qualified users who will use the ACOM amplifier. To ensure your safety in accordance with safety and security standards, read this manual carefully and follow the steps described in it. -
Page 11: Distinctive Features
Product History and Documentation Validity The ACOM 1003 power amplifier serial production started in March 2025. This manual refers to the ACOM 1003 amplifier and describes the operating possibilities of all amplifiers produced till the publishing date of this manual. -
Page 12: Additional Documentation
1.6. Product Identification Every ACOM product features an ID (identification) label/plate. The ID label is usually on the rear side of the device. On this label, you can find data identifying the device. Which product identification data are important? Model designation - The model designation is the name of the device;... -
Page 13: Equipment Supplied
User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier Figure 1-1 | ID (identification) label/plate, example Figure 1-1 | ID (identification) label/plate, example (Note: The amp is shown with an optional fan installed) 1.7. Equipment Supplied The ACOM 1003 amplifier is shipped as package, consisting of:... -
Page 14: Optional Equipment
User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier 1.8. Optional Equipment There are two individual purchase options available. They are: Table 1-3 | Optional equipment OPTIONAL EQUIPMENT External fan for ACOM 1003 ACOM L-PROT 2000 | Lightning Protector... -
Page 15: User Technical Support
If assistance is needed, you should contact your local dealer first. If necessary, your dealer will contact ACOM for additional guidance. If you still have an issue you need to discuss with one of ACOM's specialists, the contact information is as follows: ACOM Ltd. -
Page 16: Safety Considerations, Explicit Definitions
Safety Considerations, Explicit Definitions The ACOM 1003 HF + 6 m Linear Amplifier is a Safety Class I unit regarding protection against electric shock. For a safe operation the third grounding wire of the power cable (colored yellow with two green stripes) and... - Page 17 User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier The EXPLICIT DEFINITIONS described below apply to this User's Manual: DANGER These notes call attention to a procedure or instructions which, if not correctly performed, will result in serious personal injuries and even death.
- Page 18 User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier PRECAUTIONS: DANGER For safe operation, the amplifier's grounding stud on the rear panel (marked GND, see above) should be connected according to the Figure 1-4 | Rear panel - GND connection...
- Page 19 User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier WARNING NEVER operate the equipment if you notice an abnormal odor, sound, or smoke. Immediately turn off the power and contact your dealer for assistance (see Section 1.9 User Technical Support...
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Page 20: Installation
User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier 2. INSTALLATION 2.1. Unpacking and Initial Inspection Before you install your amplifier, thoroughly read this manual. First, carefully inspect the cardboard carton and its contents for physical damage. -
Page 21: Figure 2-2 | Acom 1003 Packaged In A Cardboard Box
User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier Take out the top secure element • (see , Pos. 2); Figure 2-2 Open the internal cardboard carton • (see , Pos. 3); Figure 2-2 Take out the amplifier using handles of the middle secure element •... -
Page 22: Amplifier Location Selection
User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier 2.2. Amplifier Location Selection CAUTION The unit's weight is about 21 kg (46.3 lbs.) and is recommended to be handled by two persons. Position the amplifier near the place where it will be used. You will need an easy access to the front-panel command knobs and indicator's area, as well as to the rear panel cabling. -
Page 23: Line Voltage Selection
User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier NOTICE Do not leave accidental paper, cloth, or other lightweight pieces around and under the amplifier. They may be drawn in by the cooling air stream and block the vents. This will lead to overheating and accelerated material aging, not covered by the warranty. -
Page 24: Connections
User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier 2.4. Connections Please, see below. Figure 2-4 Connecting to your radio shack must be accomplished in the order described below, before you apply mains voltage to the amplifier. - Page 25 User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier DANGER Do not use the steam-heating or water-supply network for grounding! You may expose to dangerous voltage not only yourself but also other people using the same installation.
- Page 26 User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier ANTENNA 1, ANTENNA 2, and ANTENNA 3 connectors NOTICE If this is the first time you will use a power amplifier in your station, pay attention to the coaxial cable type from the amplifier's three outputs to the antennas.
- Page 27 50 VDC (open circuit) and the closed-circuit current to the ground is below 20 mA. Using KEY OUT is not required for normal operation. ACOM 1003 will operate normally with KEY OUT unconnected if your transceiver has no such input.
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Page 28: Table 2-1 | Power Cord Connections
User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier The ground lead of the amplifier's power cord is colored yellow with two green stripes and the blue and brown leads are active. When the amplifier is to be used with only one mains fuse, it is connected in series with the brown lead, which must be the active. -
Page 29: Power On, Controls, And Indicators
User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier 3. POWER ON, CONTROLS, AND INDICATORS NOTICE Do not turn the amplifier on for at least 2 hours after unpacking it in the room where it will be used. Pay particular attention when you move it from a very cold into a warm place - condensation is likely and this could result in damage to the high voltage circuits. -
Page 30: Figure 3-2 | Front Panel - Power Button And Home Screen
User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier Now you may turn ON the mains rocker switch marked ON/OFF. The red indicator above POWER button (see , Pos. (b), below) on the front panel must light up, and the Home Screen inscription... -
Page 31: Online Mode
User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier Unlike OFFLINE, the ONLINE mode is the real amplifier operating mode "Оn Тhe Аir", which inevitably uses the tube resource. The tube operating (working) hours clock is ticking during ONLINE mode only because during this period the tube-heater voltage is "ON"... -
Page 32: Figure 3-3 | Control Routines, Menu And Information Displays Tree
User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier Figure 3-3 | Control Routines, Menu and Information Displays Tree Figure 3-3 | Control Routines, Menu and Information Displays Tree Page 32 of 90 | S e c t i o n POWER ON, CONTROLS, AND INDICATORS... -
Page 33: Automatic Power-On Test
User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier 3.1. Automatic Power-On Test Figure 3-4 | Front panel - Display, buttons and Indicator lights Figure 3-4 | Front panel - Display, buttons and Indicator lights On every power-on cycle the Control PCB checks the basic amplifier signals. Normally the automatic... - Page 34 User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier OPER button Operator options are accessible by shortly pressing the OPER button (see , Pos. (3)); Figure 3-4 the main use of this button will be in the ONLINE mode (see Section...
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Page 35: Offline Mode
User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier While there is an active protection code the amplifier could not be turned in ONLINE mode. On pressing the POWER button (see , Pos. (7)) the display would show the active protection code for another 20 Figure 3-4 seconds or until the ATT/+1s:TRI button is pressed again. -
Page 36: Operator Options In Offline Mode
User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier 3.3. Operator Options in OFFLINE Mode NEXT button First pressing of the NEXT button (see , Pos. (1)) after the Home Screen (see Figure 3-5 Figure ) grants access to the first menu. You can select the AUTO OPERATE N [Y] operator option... - Page 37 User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier When [High] is selected, the TRI prompt center will shift toward the higher plate load resistance by approximately 17%. Adjusting the amplifier in the center of the TRI will increase the gain by about 0.7 dB, but at the expense of the maximum achievable undistorted output power (it will decrease by almost the same amount), and a grid-current protection may begin tripping.
- Page 38 User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier The combination of enabled and disabled antenna outputs is saved when you select a next menu by the PREV, NEXT buttons or the ATT/+1s:TRI (one level up) or by starting the cathode warm-up countdown by the POWER button.
- Page 39 User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier The DEFAULT POWER [FULL], [50%] option reminds the 50%/+1s:DIG button action which performs the same change but while in OPERATE mode. Do not confuse or mix both of them with the MAINS/GAIN - [Normal], [High], [Low] option - it was described in Section , but controls the tube load resistance in the TRI prompt center.
- Page 40 User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier To avoid harsh non-linear IMD splatters, the "DIG" indicator should be dark when operating in SSB mode! Sixth pressing the NEXT button The sixth menu provides reading the SIGNATURES LIST.
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Page 41: Elimination Of Electromagnetic Compatibility (Emc) Problems
User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier In this case, the screen will display for 1 second: FACTORY DEFAULTS SET The operator options are then being set in their factory-default state as follows: AUTO OPERATE [Y]... - Page 42 User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier Place the radiating elements of antennas as far away as possible (also by height) from the • premises, where the affected devices are located; in this sense, asymmetrical antennas...
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Page 43: Online Mode
User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier 4. ONLINE MODE 4.1. Entering ONLINE Mode You can switch the amplifier from OFFLINE (see Sections ) to ONLINE mode by pressing and holding for 1 second the POWER button on the front panel (see Figure 3-4 | Front panel - Display, buttons and Indicator , Pos. -
Page 44: Standby Mode
User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier If during the cathode warm-up period a "Serious Fault Protection" is triggered, the warm-up process is interrupted and the amplifier returns to the OFFLINE mode in an emergency with a protection code displayed as described in Section ;... -
Page 45: Operate Mode
User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier 4.4. OPERATE Mode When the TX indicator above the OPER button is dark, and both the PTT switch and CW key are open (Key Up), the amplifier is in the receive state (OPERATE/RX). During OPERATE/RX... - Page 46 User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier The OPER button is unavailable during transmit (OPERATE/TX), too; should you press it, • the indicator light above the button flashes 3 times and the action is rejected; to switch the amplifier back to STANDBY mode you have to first release both the CW key and PTT switch in order to shift to receive state and then to press the OPER button;...
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Page 47: Tune-Up Procedure
User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier 5. TUNE-UP PROCEDURE 5.1. Pre-tuning Information Tune-up can be performed in OPERATE mode only. If the AUTO OPERATE option has not been previously enabled in Section , press the 3.3.1) - Page 48 User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier For example, when the bars show 1100 W and reflected power is OUT RFL POWER = 240 W (at antenna SWR of 2.75) the useful power in the antenna is equal to their difference: OUTPUT POWER = 1100 W –...
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Page 49: Figure 5-1 | Front Panel - Knobs And Buttons
User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier NOTICE ACOM does not recommend using a coaxial cable at SWR above 3 in HF, especially in the 10- and 6-meter bands. At these high SWR values there is a risk of a permanent damage in the coaxial cable or in the antenna switch due to increased HF voltages and currents. -
Page 50: True Resistance Indicator (Tri Prompt) And Input Attenuator Control
User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier 5.2. True Resistance Indicator (TRI Prompt) and Input Attenuator Control The True Resistance Indicator, TRI (see below) is used to quickly and accurately Figure 5-2 match the antenna complex impedance to the optimum tube load resistance. There is a scale for the real part of the tube plate-load impedance, as well as a pointer showing the load resistance achieved during adjustment compared to the optimum one. -
Page 51: Step By Step Tune-Up Instructions
User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier 5.3. Step by Step Tune-up Instructions ACOM's original TRI-prompt tuning method (see Section above) estimates the plate- load resistance based on RF linear measurands, independently of tube regime during tuning. -
Page 52: Table 5-1 | Approximate Tuning Presets For A 50 Ω Load
User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier Table 5-1 | Approximate tuning presets for a 50 Ω load BAND Band, MHz TUNE LOAD Knob Position Knob Dial Knob Dial 1.800 - 2.000 58 - 23 86 - 44 3.500 - 4.000... -
Page 53: Figure 5-3 | Using The Tri Prompt (True Resistance Indicator) For Tuning
User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier NOTICE If at any time the amplifier does not operate as described, stop transmission immediately and eliminate the cause of the problem before to continue. An arrow sign displayed at either edge of the TRI prompt indicator means that currently the LOAD capacitor is too far from the correct position. -
Page 54: Optional Information And Tuning Hints
5.4. Optional Information and Tuning Hints Thanks to ACOM's original system of TRI prompt, adjusting the TUNE capacitor practically does not change the LOAD setting. This greatly reduces the number of iterations between the two knobs and makes the tune- up procedure easier and shorter. - Page 55 User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier Tuning the marker to the left of the TRI center will result in less power gain and higher output power might be achievable. Of course, higher output power will demand higher drive power and more heat in transceiver as well. There will be higher plate current and more heat resulting in shorter tube life because of exhausting its cathode.
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Page 56: Information Screens
User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier 6. INFORMATION SCREENS In ONLINE mode, 18 information screens are available for selection on the amplifier display. Beside the countdown during cathode warm-up period (see Section ) and the TRI prompt for 4.2 Cathode Warm-up Time... -
Page 57: Auto-Protection System
User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier 7. AUTO-PROTECTION SYSTEM Whenever abnormal conditions are detected during operation, the amplifier will assess the risk and may apply three different levels of protection according to the nature of the problem. These are: OPER Light Flashing, •... -
Page 58: Third Level Of Protection - Serious Fault Protection
User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier The cause of Common Issues Protection (Soft Fault) is most often outside the amplifier, and the operator can fix it immediately, without a long interruption in operation. Messages for triggered Common Issues Protection are marked by a pair of asterisks at both line edges, for... -
Page 59: Table 7-3 | Serious Fault Protection Thresholds
User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier below shows the emergency thresholds of the controller measurands and variables that will trigger Table 7-3 a Serious Faults Protection in various amplifier operation states and cases: Table 7-3 | Serious Fault Protection Thresholds... -
Page 60: Maintenance
User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier 8. MAINTENANCE DANGER Both the mains voltage and the plate voltage (up to 3000 V) inside the amplifier are LETHAL! For your safety, pull the amplifier power plug out of the mains wall outlet and WAIT AT LEAST 30 minutes EACH TIME BEFORE you remove the cover of the amplifier. -
Page 61: Air Filter Cleaning
User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier DANGER Never push or put anything into holes in the case - this will cause electric shock. 8.1.3. Air Filter Cleaning Periodically (more often in a dusty environment, but at least once per year) clean the air filter without opening the amplifier (see below). -
Page 62: Fuse Replacement
User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier 8.2. Fuse Replacement DANGER If replacement of fuses is necessary, first pull out the amplifier mains plug from the mains outlet and wait for at least 30 minutes! NOTICE For replacement, only use standard fuses from the types recommended below. - Page 63 User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier For 100-120 VAC mains nominal voltage, e.g.: • EATON Bussmann, PN: BK/ABC-20-R (ceramic body cartridge); SIBA, PN: 70-059-60/20A (glass body cartridge). If, after Primary Mains Fuses replacement, the device does not operate normally, we recommend repair, performed only by a trained service technician.
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Page 64: Amplifier Cooling
User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier 8.3. Amplifier Cooling The tube 3CX800A7 operates with forced air cooling. This is achieved by a centrifugal blower (see Figure 8-3 below) mounted in close proximity to the tube deck, plus an External Fan, which is an option (see Section ) and is mounted on the amplifier rear panel (see below). - Page 65 User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier The tube-cooling air flow blows around most main components of the amplifier, thereby cooling also them. These components include: The heavy power transformer; • The Mains PS board;...
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Page 66: Tube Replacement
User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier If in ONLINE/STANDBY mode the temperature exceeds 150 °C, the protection against serious failure Hard Fault SB04 flg=11 is triggered and the control switches to OFFLINE mode (where cooling does not stop until the temperature drops below 100 °C);... -
Page 67: Simplified Schematic Diagram
User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier 8.5. Simplified Schematic Diagram The ceramic/metal (cermet) tube 3CX800A7 is an air-cooled, high-mu (high-µ) power triode. It is intended for operation in cathode-driven RF amplifiers in linear class AB , as well as in high efficiency class B. -
Page 68: Figure 8-5 | Simplified Schematic Diagram
User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier Figure 8-5 | Simplified schematic diagram Figure 8-5 | Simplified schematic diagram Page 68 of 90 | S e c t i o n MAINTENANCE June 2025... - Page 69 The electrical schematic diagrams are available from ACOM or your dealer on request. In any case, ACOM is not obliged to provide this information, since it contains design and production know-how.
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Page 70: Block Diagram
User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier 8.6. Block Diagram The block diagram excludes the tube and the RF output circuit described in the previous Section 8.5 Simplified Schematic Diagram Please, see Figure 8-6 | Block diagram below. - Page 71 User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier Figure 8-6 | Block diagram Figure 8-6 | Block diagram June 2025 S e c t i o n MAINTENANCE | Page 71 of 90...
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Page 72: Troubleshooting | Serious-Fault Protection Codes And Signatures
User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier 8.7. Troubleshooting | Serious-Fault Protection Codes and Signatures In case of a highest-protection level trip - a Serious Fault Protection (known as Hard Fault - see Section ), the controller first cuts off the tube by applying maximum 7.3 Third Level of Protection - Serious Fault Protection... -
Page 73: Table 8-1 | Serious Fault (Hard Fault) Protection Codes List
User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier Table 8-1 | Serious Fault (Hard Fault) Protection Codes List ER Code Failing Sig. Name ER PN (Power ON): Tests at Power On & during OFFLINE: ER PN01... - Page 74 User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier ER Code Failing Sig. Name ER PR (OPERATE): Tests while entering OPER: ER PR00 flg02 BIAS/16 Bias voltage divided by 16 Tests at HV On, before STST: ER PR01...
- Page 75 User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier Heater voltage too High during OPER: ER PR1F flg3 HTR/8 Heater voltage divided by 8 BAND Switch Danger during OPER: ER PR20 flg15 *BSWE Band Switch Error (active low)
- Page 76 User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier ER SB04 flg09 Plate current measure ER SB04 flg10 High Voltage measure ER SB04 flg11 TEMP Exhaust air temperature ER SB05 flg04 PFWD Peak Forward Power ER SB05...
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Page 77: Reading And Interpreting Serious-Fault Protection Signatures
User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier 8.7.2. Reading and Interpreting Serious-Fault Protection Signatures As it was described in Sections earlier, starting from the Home Screen (see below), 3.3.6) Figure 8-7 Figure 8-7 | Front panel - OPER, PREV/NEXT and ATT buttons... - Page 78 User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier The Signatures contain coded information about: The amplifier operating mode and sub-mode; • The issue's nature; • The values of all 11 analogue measurands; • The registers state of all 17 input logic signals;...
- Page 79 User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier If no more events have been recorded, the text No Data is displayed. You can exit the menu by pressing the ATT/+1s:TRI button shortly. The signatures list can be read and photographed from the amplifier display in OFFLINE mode in order to be sent to a workshop for a diagnose.
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Page 80: Specifications
User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier 9. SPECIFICATIONS 9.1. Parameters Standard Frequency Coverage: All amateur bands in the 1.8-54 MHz frequency range 1.800 - 2.000 MHz (160 m band) 3.500 - 4.000 MHz (80 m band) 5.250 - 5.450 MHz... - Page 81 User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier Input and Output Impedances Nominal impedance: 50 Ω unbalanced, UHF / PTFE coaxial connectors (SO-239A); • Input circuit: factory tuned low-pass filters for best linearity and input SWR not more than •...
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Page 82: Functions
Anode exhaust air maximum temperature; • Unique ACOM protection for BAND switch; • Original ACOM protection for RF break down or RF arcs at the output, including the • antenna system; Punctual antenna relay transmit/receive sequence control and time synchronization with •... -
Page 83: Regulatory Requirements
WARNING Using the ACOM 1003 amplifier, antennas must be operated at certain minimum distance between the radiator and any person's body. This unit (ACOM 1003 amplifier) complies with the FCC RF Exposure limits for an uncontrolled environment. June 2025 S e c t i o n SPECIFICATIONS | Page 83 of 90... -
Page 84: Storage And Shipment
User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier To comply with CFR Title 47 Part 97.13(C) and the Guidelines and Limits for Human Exposure to RF electromagnetic fields adopted by the FCC, you should evaluate your Radio Station Facilities as described in OET BULLETIN 65 plus SUPPLEMENT B - Additional Information for Amateur Radio Stations. -
Page 85: Transportation
User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier 9.4.3. Transportation All types of transportation may be used, including storage in an aircraft baggage compartment at up to 12000 meters (40000 ft) above sea level. 9.4.4. Returning to the Service Provider This document section contains the general information on packing and shipping an amplifier for diagnostics and repair. -
Page 86: Information On Disposing And Recycling Of Old Electrical And Electronic Equipment
User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier Basic shipping insurance is provided by the customer when sending in an amplifier - you can verify the amount covered by the shipping company by looking on their website. If you are shipping the amplifier, full/upgraded coverage is available as a suggested option. -
Page 87: Notes
User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier NOTES ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. June 2025 S e c t i o n NOTES | Page 87 of 90... - Page 88 User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. Page 88 of 90 | S e c t i o n NOTES...
- Page 89 User's Manual | ACOM 1003 | HF + 6 m Linear Amplifier This manual is for electronic distribution mainly. If you have it on paper and you no longer need it, please, recycle it! The latest versions of our User's Manuals are available at www.acom-bg.com...
- Page 90 о о support@acom-bg.com ACOM and the ACOM logo are registered trademarks of ACOM Ltd. in many countries, www.acom-bg.com including the EU and United States. I The used images are illustrative only. Subject to change without notice. I Printed in Bulgaria.
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