Acom International 1000, User Manual

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Exhibit 8 3 - 17
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1-3. Equipment Supplied
The ACOM1000 amplifier and this manual are shipped in a cardboard carton.
1-4. Features
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Easy to operate. The TRI is a powerful tuning aid which, together with the automatically controlled input attenuator,
helps the operator to quickly and precisely match antennas (5-10 seconds typically). The auto-operate function (when
enabled) maintains the amplifier in OPERATE mode for you, thus saving manual operations and time.
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No heavy outboard antenna tuners required for antenna VSWR up to 3:1 (and higher on some bands). Your
amplifier will perform the functions of an antenna tuner, thus enabling you change antennas faster and use them over a
wider frequency range (saving tuning time).
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An amplifier that is both user-friendly, and that looks after itself. It is designed to safely withstand up to 500W
reflected power, up to 100 milliseconds duration of drive spikes, drive RF "tails" after a PTT or KEY release, operator's
inadvertent tuning errors etc. It would also not cease to function with a "soft" AC line and would deliver more than half
power at only 75% of nominal mains voltage. It would withstand up to 10 milliseconds (down to zero) voltage drops, and
up to +15% line voltage spikes, which is important particularly when used at field days, Dxpeditions, and other portable
events.
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LCD comment display. All amplifier status indications are explained via detailed text displayed on the dot matrix
backlighted liquid crystal display (LCD). The upper-line’s strip on the LCD always reads directly peak forward power. For
OPERATE, attenuator-on, and ON/OFF conditions are provided LED indicators.
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Easy maintenance. Signatures of the amplifier internal status are stored in a nonvolatile memory for 7 most recent
auto protection trips. This information can be forwarded to your dealer for diagnostics. Using an EXCEL APPLICATION
(available from ACOM or your dealer free of charge) and a PC you can decode the signatures by yourself too.
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Less noise in the shack: the input bypassing and the vacuum antenna relays are virtually silent even in QSK CW
mode due to their special mounting.
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Less QRM and improved Electro Magnetic Compatibility during tuning. Antenna matching can be achieved in less
than 10 seconds at a quarter of nominal output power.
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Operates without special signals from the transceiver - "ground on TX" and 60W RF drive power are sufficient.
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Broadband input matching circuit resulting in very good load to the transceiver over the entire spectrum from
1.8MHz up to 54MHz.
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Uses a single 4CX800A (GU74B) Svetlana high-performance ceramic-metal tetrode with plate dissipation of 800W
(forced air cooling, grid-driven).
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Permanent monitoring and protection of plate and grid voltages and currents, as well as of the exhaust air
temperature. The Bias Optimizer decreases the heat dissipated from the tube, and there is automatic protection against
overheating in accordance with the specifications of the tube producer.
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An output RF Arc protection is employed. It safeguards the amplifier, antenna, antenna selector, and tuner against
severe damage in case of possible break down.
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High voltage power supply inrush current protection, which eliminates the danger of affecting sensitive devices,
connected to the same mains circuit (important when used portable). The amplifier can be configured for 5 nominal line
voltages: 200, 210, 220, 230, and 240VAC, 50 or 60Hz (100, 110, and 120VAC on request).
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Continuous measuring and/or selectable monitoring of 12 most important parameters of the amplifier, exciter and
antennas via LCD.
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The amplifier can be shipped with 10 and 12 meters capability disabled as required by the FCC for US users.
Contact your dealer about enabling those bands.
1-5. Safety Considerations, Explicit Definitions
The ACOM1000 HF+6 meters Linear Amplifier is a Safety Class I unit. The third grounding lead of its mains cord (which
is colored yellow with two green stripes) and the ground stud on the rear panel of the amplifier, (marked GND) must be
connected to the station's grounding system for safe operation.
The amplifier is designed to meet international safety standards and complies with CE safety and electromagnetic
compatibility requirements, as well as FCC regulations.
This operating manual contains information, precautions, indications for cautions and warnings which must be followed
by the user to ensure safe operation and to keep the ACOM1000 in safe operating condition.
PRECAUTIONS:
The EXPLICIT DEFINITIONS described below apply to this operating manual:
W A R N I N G
notes call attention to a procedure which, if not correctly performed, could result in personal injury, fire
hazard or electric shock.