Acom 700S User Manual
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Acom 700S User Manual

1.8-54 mhz linear amplifier
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ACOM 700S
1.8-54 MHz
Linear Amplifier
User's Manual
Installation, Operation
and Maintenance
OUTSTANDING HF POWER PRODUCTS
April 2024

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  • Page 1 ACOM 700S 1.8-54 MHz Linear Amplifier User's Manual Installation, Operation and Maintenance OUTSTANDING HF POWER PRODUCTS April 2024...
  • Page 2 User's Manual | ACOM 700S | 1.8-54 MHz 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 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 Offenders will be held liable for infringement of any intellectual property of ACOM Ltd. and all damages which may rise as a result. Trademarks ICOM, KENWOOD, YAESU, ELECRAFT, and other product names or brands mentioned in this documentation are either registered trademarks or trademarks of their respective holders.

  • Page 5: Table Of Contents

    User's Manual | ACOM 700S | 1.8-54 MHz 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. Product Features ........................... 11 1.4. Product History and Documentation Validity ................12 1.5.
  • Page 6 User's Manual | ACOM 700S | 1.8-54 MHz Linear Amplifier MENUS - SETTINGS AND OPTIONS ......................46 5.1. Menu AMP MEASURE (Amplifier Measurements) ................ 47 5.2. Menu AMP SERVICE (Amplifier Service Functions) ............... 48 5.3. Menu CAT/AUX SETTINGS (Selection of CAT/AUX interface) ............49 5.4.
  • Page 7 Figures Figure 1-1 | ID (identification) label/plate, example ..................13 Figure 1-2 | ACOM 06AT automatic antenna tuner and switch (shown near 700S amplifier) ....... 14 Figure 1-3 | ACOM 04AT remote automatic antenna tuner and switch ............14 Figure 1-4 | ACOM eBox Ethernet Remote Control device ................15 Figure 2-1 | Packaging carton (outside view) ....................
  • Page 8 User's Manual | ACOM 700S | 1.8-54 MHz Linear Amplifier Figure 7-10 | Terminal S - Tools -> Setting -> General menu ................69 Figure 7-11 | Terminal S - Tools -> Setting -> Serial port menu ..............69 Figure 7-12 | Terminal S - Connect to amplifier ....................70 Figure 7-13 | Terminal S - Firmware Upload/Download .................

  • Page 9: General Information

    Congratulations on purchasing one of the finest solid-state 1.8-54 MHz 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

    User's Manual | ACOM 700S | 1.8-54 MHz Linear Amplifier 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: Product Features

    1.3. Product Features Easy to operate • The overall operation of ACOM 700S is extremely simplified: the screen menus are intuitive and easy to follow, no special skill is required from the operator when changing frequency bands. User-friendly automatic control •...

  • Page 12: Product History And Documentation Validity

    The ACOM 700S solid-state power amplifier serial production started in March 2018. The production has continued to these days without functional changes and with hardware improvements only. This manual refers to the ACOM 700S amplifier and describes the operating possibilities of all amplifiers produced till the publishing date of this manual.

  • Page 13: Equipment Supplied

    User's Manual | ACOM 700S | 1.8-54 MHz Linear Amplifier Figure 1-1 | ID (identification) label/plate, example Figure 1-1 | ID (identification) label/plate, example The serial number can be seen in the menu FAULTS LOG too. 1.7. Equipment Supplied The ACOM 700S amplifier is shipped as package, consisting of:...

  • Page 14: Optional Equipment

    700S (see Section 4.3 Operation with an External Antenna Tuner Using the ACOM 06AT or 04AT with an ACOM 700S amplifier is highly recommended. Figure 1-2 | ACOM 06AT automatic antenna tuner and switch (shown near 700S amplifier) Figure 1-2 | ACOM 06AT automatic antenna tuner and switch (shown near 700S amplifier)

  • Page 15: Owner Assistance

    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

    1.10. Safety Considerations, Explicit Definitions The ACOM 700S linear amplifier is a Safety Class I unit regarding protection against electric shock. The third grounding lead of its mains cord (which is colored yellow with two green stripes) and the ground stud on...
  • Page 17 DANGER Both the mains voltage and the high DC voltage up to 500 V inside the ACOM 700S amplifier are LETHAL! For your safety, pull the amplifier power plug out of the mains wall outlet and WAIT AT LEAST 3 minutes EACH TIME BEFORE you remove the cover of the amplifier.
  • Page 18 User's Manual | ACOM 700S | 1.8-54 MHz 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 Owner Assistance...

  • Page 19: Installation

    Before you install your amplifier, thoroughly read this manual. First, carefully inspect the cardboard carton and its contents for physical damage. ACOM ships amplifiers in highly protected containers, but it cannot assure that mistreatment by shippers will not occur. If damage is evident, notify your dealer immediately.

  • Page 20: Figure 2-2 | Acom 700S Packaged In A Cardboard Box

    User's Manual | ACOM 700S | 1.8-54 MHz Linear Amplifier Take out the amplifier using handles of the middle secure element • (see , Pos. 4); Figure 2-2 | ACOM 700S packaged in a cardboard box Take out the amplifier (Pos. 8) from the middle secure element and remove top, bottom and •...

  • Page 21: Amplifier Location Selection

    NOTICE The ACOM 700S is forced air cooled. Keep a minimum clearance distance of 10 cm (4 inches) to any other devices or objects. The exhaust air can reach 65...

  • Page 22: Line Voltage Selection

    The consumed current is purely sinusoidal, Power Factor Corrected (PFC) and inrush limited. This makes the operation from unstable mains and generators easy and trouble free. Thanks to the built-in SMPS, the ACOM 700S has no mains line voltage selector to take care of! See Section for correct fuse rating.
  • Page 23 User's Manual | ACOM 700S | 1.8-54 MHz Linear Amplifier GND stud for grounding Before you connect the amplifier to external grounding, you should advise with a licensed electrician and confirm such kind of connection is allowed by your national standards and regulations for electric safety, fire safety, and lightning protection.
  • Page 24 User's Manual | ACOM 700S | 1.8-54 MHz Linear Amplifier For details and recommendations on the grounding and RF counterpoise system concerning the electromagnetic compatibility see also Section 3.6.f) Elimination of electromagnetic compatibility (EMC) problems KEY IN connector This is the amplifier's input for receive/transmit control from the transceiver.
  • Page 25 User's Manual | ACOM 700S | 1.8-54 MHz Linear Amplifier ACOM 700S will operate normally with KEY OUT unconnected if your transceiver has no such input. Transceiver producers give different names to this input and they are for instance TX-INHIBIT, MUTE, LINEAR, etc. Check your transceiver's manual.

  • Page 26: Table 2-1 | Power Cord Connections

    User's Manual | ACOM 700S | 1.8-54 MHz Linear Amplifier Main fuses Please, see , Pos. (f). Figure 2-4 | Rear panel - Connections NOTICE Make sure you check whether the main fuses installed in your amplifier correspond to your local mains nominal voltage. If occasion should require replacement of the mains fuses, replace them as described in Section 7.3 Fuse Replacement...

  • Page 27: Connecting To External Devices (Transceiver, Computer, Etc.) And User Settings

    Figure 5-4 | Menu CAT/AUX SETTINGS Most of the modern transceivers can be connected by CAT to the ACOM 700S. This will allow the amplifier to track the transceiver frequency without any transmission and change the bands automatically when in OPERATE mode.

  • Page 28: Table 2-2 | Signals And Pin Out Of The Cat/Aux Connector

    Band Voltage outputs do not provide an exact frequency data, but only band data. Those connections cannot be used when ACOM 700S works together with ACOM 04AT or 06AT because the tuner needs to know the exact frequency, not only the band.

  • Page 29: Table 2-3 | Signals And Pin Out Of The Rs-232 Connector

    User's Manual | ACOM 700S | 1.8-54 MHz Linear Amplifier RS-232 interface connector Please, see , Pos. (4). Figure 2-4 | Rear panel - Connections RS-232 interface is used for Firmware Updates (see Section ) and for remote control (see 7.5 Firmware...

  • Page 30: First Power-On, Control System, And Initial Check

    User's Manual | ACOM 700S | 1.8-54 MHz Linear Amplifier 3. FIRST POWER-ON, CONTROL SYSTEM, AND INITIAL CHECK 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 31: Low Energy Standby Mode Of The Power Supply

    User's Manual | ACOM 700S | 1.8-54 MHz Linear Amplifier 3.1. Low Energy STANDBY Mode of the Power Supply Now you can turn on the mains rocker switch marked ON/OFF (see , Pos. Figure 2-4 | Rear panel - Connections (1)).

  • Page 32: Basic Screen

    User's Manual | ACOM 700S | 1.8-54 MHz Linear Amplifier 3.4. Basic Screen The following information areas are to be distinguished on the basic screen: Information area for the frequency band Please, see , Pos. (a). Figure 3-2 | Basic screen The edges of the currently selected BAND are displayed.

  • Page 33: Control System - Buttons And Menus

    User's Manual | ACOM 700S | 1.8-54 MHz Linear Amplifier Working mode indicator - OPR, STB or AUTO OPER Please, see , Pos. (c). Figure 3-2 | Basic screen For detailed information, please, see Section 4.1 Change of Modes RX/TX and OPERATE/STANDBY; AUTO...

  • Page 34: Test Transmission

    Check of RF bypass path of a non-driven amplifier When the ACOM 700S is powered off, there is a bypass from RF INPUT to RF OUTPUT. For this check the amplifier must be completely installed and connected according to Section , but not powered by the mains, i.e., the mains rocker switch on the rear panel must be...
  • Page 35 User's Manual | ACOM 700S | 1.8-54 MHz Linear Amplifier Now in RECEIVE mode select a frequency which is not occupied at the moment and press shortly the PTT or TX key while watching the output power and the SWR readings. If the power or SWR at the transceiver output are too high (over 5 W or SWR over 2:1) release the key and check for the reason as follows: Check again whether the power control is set at minimum;...
  • Page 36 User's Manual | ACOM 700S | 1.8-54 MHz Linear Amplifier Test transmission with the amplifier If not readily set by CAT, switch the amplifier to the same band as the transceiver and antenna (see Section 3.5.1) The OPR/STB and the BAND buttons Set the transceiver to a continuous carrier mode and minimum power.
  • Page 37 User's Manual | ACOM 700S | 1.8-54 MHz Linear Amplifier For instance, induction of RF currents into the microphone, CW keyer or computer keyboard, may lead to distortion in the peaks or relaxation oscillation in SSB mode, "sticking" or breaking off the dots or dashes from a Morse keyer, or garbling computer screen images.
  • Page 38 User's Manual | ACOM 700S | 1.8-54 MHz Linear Amplifier Practically, with no great efforts, implementing the above measures, you can reduce the receive background noise floor with one or more S-units across the different bands. This will allow you not to miss weaker stations, which will hear you because of your increased transmission power.

  • Page 39: Operation

    User's Manual | ACOM 700S | 1.8-54 MHz Linear Amplifier 4. OPERATION 4.1. Change of Modes RX/TX and OPERATE/STANDBY; AUTO OPERATE User Setting STANDBY mode In STANDBY mode, as well as, when the amplifier is powered off, receiving and transmitting (no more than 200 W) with the transceiver is done via RF bypass path through RF INPUT to RF OUTPUT of the amplifier.

  • Page 40: Band Change, Standard And Expanded Frequency Coverage

    User's Manual | ACOM 700S | 1.8-54 MHz Linear Amplifier Access to the OPERATE mode can be locked in the AMP SERVICE menu, the OPERATE ACCESS user setting (see Section 5.2 Menu AMP SERVICE (Amplifier Service Functions) Figure 5-3 | Menu AMP SERVICE...

  • Page 41: Operation With An External Antenna Tuner

    Desk mounted tuner Figure 4-1 | ACOM 04AT tuner mounting possibilities ACOM 06AT tuner is designed for indoor use only! It can be located up to 100 m (330 ft) away from the shack, using a single coaxial cable. Figure 4-2 | ACOM 06AT automatic antenna tuner and switch (shown near 700S amplifier)

  • Page 42: Figure 4-3 | Amplifier Screen With Acom 04At Or 06At Antenna Tuner Installed

    User's Manual | ACOM 700S | 1.8-54 MHz Linear Amplifier The connection of ACOM 04AT or 06AT tuner will make accessible specific features on the amplifier display that provide a transparent operation by following frequency and antenna selection changes in less than 50 ms.

  • Page 43: Automatic Protection System

    User's Manual | ACOM 700S | 1.8-54 MHz Linear Amplifier 4.4. Automatic Protection System The ACOM 700S control unit (see Section ) keeps track of 7.4 Using the Fault Codes (signatures) for Diagnostics most amplifier analogue and logic signals in all modes.
  • Page 44 User's Manual | ACOM 700S | 1.8-54 MHz Linear Amplifier You can continue to transmit in these conditions, but you have to take some measures, for example, to reduce a bit the drive power from the transceiver. The warnings remain on the screen for at least three seconds so that they can be read through and will disappear after the reason has dropped off.
  • Page 45 User's Manual | ACOM 700S | 1.8-54 MHz Linear Amplifier At each "HARD FAULT" shutdown the amplifier stores diagnostic data, concerning the controls and values, the trip time, and others. Your dealer or his service may ask you to copy or take a picture on the data from the amplifier screen or download it by RS-232 interface and store it in a computer file (see Section 5.5 Menu...

  • Page 46: Menus - Settings And Options

    User's Manual | ACOM 700S | 1.8-54 MHz Linear Amplifier 5. MENUS - SETTINGS AND OPTIONS By pushing the MENU button (the rightmost on ) the user invokes the MENU Figure 3-2 | Basic screen SELECTION screen (see ). Each menu can be selected by the...

  • Page 47: Menu Amp Measure (Amplifier Measurements)

    The measured values of the quantities in the AMP SERVICE menu are indicative only. The ACOM amplifier is not a measuring instrument in the sense of a calibrated (laboratory) instrument, i.e. the measured values can not be used as a reference or compared with any other measured values from calibrated (laboratory) instruments.

  • Page 48: Menu Amp Service (Amplifier Service Functions)

    User's Manual | ACOM 700S | 1.8-54 MHz Linear Amplifier 5.2. Menu AMP SERVICE (Amplifier Service Functions) The amplifier service menu (see ) is accessible from the MENU SELECTION Figure 5-3 | Menu AMP SERVICE screen (see ) at RX mode only.

  • Page 49: Menu Cat/Aux Settings (Selection Of Cat/Aux Interface)

    User's Manual | ACOM 700S | 1.8-54 MHz Linear Amplifier 5.3. Menu CAT/AUX SETTINGS (Selection of CAT/AUX interface) After a CAT cable is connected to both the transceiver and amplifier, the correct settings for the transceiver have to be entered via this menu. If there is no CAT connection, OFF has to be selected as Interface type.
  • Page 50 Table 5-1 | Transceiver interface Under CAT interface control, the amplifier follows the VFO "A" frequency changes only. The ACOM 04AT and 06AT automatic antenna tuners follow the frequency of the amplifier. If your transceiver has more than one VFO, as well as in SPLIT mode, use VFO "A" for transmission and for tuner control.

  • Page 51: Menu User Preferences

    If entered here, a call sign (or another text) will be included in any Fault Log file generated by the amplifier (see Section ). The call sign (or another text) will not replace ACOM 700S logo on the 5.5 Menu FAULTS LOG startup screen.

  • Page 52: Menu Faults Log

    User's Manual | ACOM 700S | 1.8-54 MHz Linear Amplifier OPERATE ACCESS When locked, the amplifier remains in STANDBY and cannot be switched to OPERATE unless unlocked in the same menu. Passwords are not used - this is only a simple protection against possible child actions, or involuntary switching to OPERATE mode.

  • Page 53: Menu Restore Default Settings

    User's Manual | ACOM 700S | 1.8-54 MHz Linear Amplifier 5.6. Menu RESTORE DEFAULT SETTINGS Four different factory-reset levels are available (see Figure 5-7 | Menu RESTORE DEFAULT SETTINGS In order to confirm the selected action, the operator must push the ACTION (down arrow) button once more (as YES confirmation).

  • Page 54: Remote Control

    User's Manual | ACOM 700S | 1.8-54 MHz Linear Amplifier 6. REMOTE CONTROL Remote control of ACOM 700S is provided by either ACOM eBox Ethernet Remote Control device or RS-232 port. 6.1. Remote Control via ACOM eBox Remote control of ACOM 700S via Internet is provided by the ACOM eBox Ethernet Remote Control device.

  • Page 55: Maintenance

    7. MAINTENANCE DANGER Both the mains voltage and the high DC voltage up to 500 V inside the ACOM 700S amplifier are LETHAL! For your safety, pull the amplifier power plug out of the mains wall outlet and WAIT AT LEAST 3 minutes EACH TIME BEFORE you remove the cover of the amplifier.

  • Page 56: Cleaning

    User's Manual | ACOM 700S | 1.8-54 MHz Linear Amplifier 7.2. Cleaning CAUTION Do not use any solvents for cleaning. They may be dangerous to you and damage amplifier surfaces, paint, and plastic components. Do not open the amplifier. Cleaning of the amplifier outer surfaces can be done with a piece of soft cotton cloth lightly moistened with clean water.
  • Page 57 User's Manual | ACOM 700S | 1.8-54 MHz Linear Amplifier Suitable 16 A fuses are: Littelfuse, PN: 0216016.MXP (ceramic body cartridge); • This fuse can be ordered from: - Farnell (www.farnell.com), PN: 1354551; - Mouser (www.mouser.com), PN: 576-0216016. ESKA, PN: 520.030 (glass body cartridge);...

  • Page 58: Using The Fault Codes (Signatures) For Diagnostics

    The data can be read in a plain-text format with a computer, using a standard terminal emulating program (TTY). You can send the recorded file to your dealer or to ACOM accordingly. To decode the downloaded hexadecimal data, you have to use the ACOM Hard Faults Signatures Converter (Excel file), distributed by ACOM free of charge.

  • Page 59: Firmware

    FAULTS LOG before you undertake any action. When ACOM issues a new firmware version, the user can upload it in the amplifier after he checks the compatibility. When compatibility is confirmed a return to an earlier version is also possible.

  • Page 60: Figure 7-1 | Example Of Pc With Rs-232 Port (Interface)

    The ACOM 700S firmware version 1.8 is compatible with all ACOM 700S amplifiers produced (see Section 1.4 Product History and Documentation Validity For uploading (or backup) a firmware to ACOM 700S you have to use the software, ACOM Terminal S distributed by ACOM free of charge.

  • Page 61: Figure 7-2 | Examples Of "Usb To Rs-232" Converters

    User's Manual | ACOM 700S | 1.8-54 MHz Linear Amplifier Table 7-2 | RS-232 connection cable wiring ACOM 700S Rear panel Personal Computer Connecting cable RS-232 connector RS-232 connector 1 | Not connected 1 | DCD Not connected 2 | TxD ––––––––...

  • Page 62: Firmware Update Procedure

    - RS-232 serial port/interface (in-build). The sample images below are based on used Terminal S software with a connected ACOM 500S amplifier. The firmware update procedure is the same for ACOM 700S and 1200S amplifiers. Page 62 of 92 | S e c t i o n MAINTENANCE...

  • Page 63: Figure 7-3 | Pc Device Manager

    User's Manual | ACOM 700S | 1.8-54 MHz Linear Amplifier STEP 1 – RS-232 Interface Settings on your PC Switch On your PC. Connect the "USB to RS-232" converter to any USB port on your • computer, and do not connect the converter to the amplifier.

  • Page 64: Figure 7-4 | Pc Device Manager -> Port Properties

    User's Manual | ACOM 700S | 1.8-54 MHz Linear Amplifier Go to Serial port Properties (right mouse click over Device Manager -> Ports -> USB Serial • Port -> Properties). You can see a situation similar to this: Figure 7-4 | PC Device manager -> Port properties Figure 7-4 | PC Device manager ->...

  • Page 65: Figure 7-5 | Pc Device Manager -> Usb Serial Port Properties

    User's Manual | ACOM 700S | 1.8-54 MHz Linear Amplifier Go to Port Settings tab -> Advanced tab and change Latency Timer parameter to 1 msec. • Figure 7-5 | PC Device manager -> USB Serial Port properties Figure 7-5 | PC Device manager -> USB Serial Port properties Restart your PC •...

  • Page 66: Figure 7-7 | Examples Pc Device Manager -> Built-In Rs-232 Port Properties

    User's Manual | ACOM 700S | 1.8-54 MHz Linear Amplifier If you are using a PC with a built-in RS-232 port the above STEP 1 is similar and you have to go to Port Settings tab -> Advanced tab and change Receive/Transit buffer parameters to 1.

  • Page 67: Figure 7-8 | Rear Panel - Rs-232 Port

    User's Manual | ACOM 700S | 1.8-54 MHz Linear Amplifier STEP 2 – Amplifier Settings When the amplifier is turned on, push the POWER button to turn off the amplifier (back to • Low Energy standby mode); Switch off the amplifier via Main Power...

  • Page 68: Figure 7-9 | Acom Terminal S Screenshot

    STEP 3 – Using Terminal S software for Firmware Update Exit all programs running on your computer and DISABLE/DEACTIVATE any antivirus software; • Start ACOM Terminal S software (We assume that you downloaded Terminal S software • from and installed it on your PC);...

  • Page 69: Figure 7-10 | Terminal S - Tools -> Setting -> General Menu

    User's Manual | ACOM 700S | 1.8-54 MHz Linear Amplifier Figure 7-10 | Terminal S - Tools -> Setting -> General menu Figure 7-10 | Terminal S - Tools -> Setting -> General menu Figure 7-11 | Terminal S - Tools -> Setting -> Serial port menu Figure 7-11 | Terminal S - Tools ->...

  • Page 70: Figure 7-12 | Terminal S - Connect To Amplifier

    User's Manual | ACOM 700S | 1.8-54 MHz Linear Amplifier Connect ACOM Terminal S to the amplifier by clicking on the Connect icon (two connected • plugs) or use Device -> Connect from the menu bar; Figure 7-12 | Terminal S - Connect to amplifier...

  • Page 71: Figure 7-14 | Terminal S - Disconnect

    User's Manual | ACOM 700S | 1.8-54 MHz Linear Amplifier Click on the Disconnect icon (two separated plugs) or use Device -> Disconnect from the • menu bar to disconnect from the amplifier. Figure 7-14 | Terminal S - Disconnect Figure 7-14 | Terminal S - Disconnect Open the Settings window by clicking on the Settings icon (two gears) or use Tools ->...

  • Page 72: Figure 7-16 | Terminal S - Reconnect

    User's Manual | ACOM 700S | 1.8-54 MHz Linear Amplifier Re-connect to the amplifier by clicking on the Connect icon (two connected plugs) or use • Device -> Connect from the menu bar; Figure 7-16 | Terminal S - Reconnect...

  • Page 73: Figure 7-18 | Terminal S - Upload Firmware Process

    User's Manual | ACOM 700S | 1.8-54 MHz Linear Amplifier Press the U letter from your keyboard to activate the Firmware Upload process. • Press the Y letter from your keyboard to answer the question that appears: CURRENT FIRMWARE WILL BE ERASED! ARE YOU SURE (N/N)? A new dialog box will open asking for the new firmware file name and location.

  • Page 74: Figure 7-19 | Terminal S - Backup Firmware Process

    User's Manual | ACOM 700S | 1.8-54 MHz Linear Amplifier Press the B letter from your keyboard to activate the Firmware Backup process. • A new dialog box will open prompting you to enter a name and location for the new backup file.

  • Page 75: Figure 7-20 | Terminal S - Exit Process

    User's Manual | ACOM 700S | 1.8-54 MHz Linear Amplifier Press the E letter from your keyboard to exit from the process. Click on the Disconnect icon • (two separated plugs) or use Device -> Disconnect from the menu bar to disconnect from the amplifier.

  • Page 76: Troubleshooting

    User's Manual | ACOM 700S | 1.8-54 MHz Linear Amplifier 7.5.4. Troubleshooting Sometimes the procedure for Firmware Update/Backup is unsuccessful. Error Timeout when using Terminal S software If you see an error message related to Timeout, please check: Latency Timer parameter as describer in Section 7.5.3 Firmware Update Procedure...

  • Page 77: Figure 7-22 | Windows Device Manager - Load Vcp

    User's Manual | ACOM 700S | 1.8-54 MHz Linear Amplifier The other possible reasons for Timeout error could be, for example: Windows Device Manager -> USB Serial Converter Properties -> Advanced • Below are shown the recommended settings (VCP = Virtual Com Port):...

  • Page 78: Figure 7-23 | Windows Device Manager - Power Management

    User's Manual | ACOM 700S | 1.8-54 MHz Linear Amplifier Windows Device Manager -> USB Serial Converter Properties -> Power Management • Below are shown the recommended settings: Figure 7-23 | Windows Device Manager - Power Management Figure 7-23 | Windows Device Manager - Power Management...

  • Page 79: Figure 7-24 | Windows Control Panel - Power Plan

    User's Manual | ACOM 700S | 1.8-54 MHz Linear Amplifier Windows Power plan • Below are shown the recommended settings: Figure 7-24 | Windows Control Panel - Power plan Figure 7-24 | Windows Control Panel - Power plan April 2024...
  • Page 80 User's Manual | ACOM 700S | 1.8-54 MHz Linear Amplifier If, for some reason (mostly human error), the Firmware Update/Backup process is interrupted, the following scenarios are possible: The amplifier is in STANDBY mode (the monitor shows the user interface) but nothing •...

  • Page 81: Specifications

    User's Manual | ACOM 700S | 1.8-54 MHz Linear Amplifier 8. SPECIFICATIONS 8.1. Parameters Standard Frequency Coverage 1.800 - 2.000 MHz (160 m band) 3.500 - 4.000 MHz (80 m band) 5.250 - 5.450 MHz (60 m band) 7.000 - 7.300 MHz (40 m band) 10.100 - 10.150 MHz...

  • Page 82: Functions

    User's Manual | ACOM 700S | 1.8-54 MHz Linear Amplifier RF power gain 14 dB 1 dB (typically 27 W for 700 W output power); ± • Mains Power Supply Voltage 100-240 VAC (see Section for correct fuse rating and mains voltage 7.3 Fuse Replacement...
  • Page 83 Remote control through ACOM eBox Ethernet Remote Control device or via RS-232 interface Remote POWER ON by DSR/DTR and CTS/RTS lines on the RS-232 port or by ACOM eBox Ethernet Remote Control device...

  • Page 84: Regulatory Requirements

    Using the ACOM 700S amplifier, antennas must be operated at certain minimum distance between the radiator and any person's body. This unit (ACOM 700S amplifier) complies with the FCC RF Exposure limits for an uncontrolled environment. To comply with CFR Title 47 Part 97.13(C) and the Guidelines and Limits for Human...
  • Page 85 User's Manual | ACOM 700S | 1.8-54 MHz Linear Amplifier OET BULLETIN 65 plus SUPPLEMENT B can be found at: • https://www.fcc.gov/bureaus/oet/info/documents/bulletins/oet65/oet65.pdf • https://www.fcc.gov/bureaus/oet/info/documents/bulletins/oet65/oet65b.pdf In addition to the above guidelines, please, see Section 3.6.f) Elimination of electromagnetic compatibility (EMC) problems...

  • Page 86: Storage And Shipment

    User's Manual | ACOM 700S | 1.8-54 MHz Linear Amplifier 8.4. Storage and Shipment 8.4.1. Storage Environment The amplifier may be kept packed in a dry, ventilated, and unheated location (with no chemically active substances such as acids or alkalis) within the following environment ranges:...

  • Page 87: Returning To The Service Provider

    User's Manual | ACOM 700S | 1.8-54 MHz Linear Amplifier 8.4.4. Returning to the Service Provider This document section contains the general information on packing and shipping an amplifier for diagnostics and repair. NOTICE Should it be necessary to ship the amplifier, use the original packing as described below.

  • Page 88: Information On Disposing And Recycling Of Old Electrical And Electronic Equipment

    User's Manual | ACOM 700S | 1.8-54 MHz 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 89: Notes

    User's Manual | ACOM 700S | 1.8-54 MHz Linear Amplifier NOTES ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. April 2024 S e c t i o n NOTES | Page 89 of 92...
  • Page 90 User's Manual | ACOM 700S | 1.8-54 MHz Linear Amplifier ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. ……………………………………………………………………………………………………………..…………………………………………………………………………………………………………………….. Page 90 of 92 | S e c t i o n NOTES...
  • Page 91 User's Manual | ACOM 700S | 1.8-54 MHz 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 92 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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