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• Less noise in the shack. The input bypassing and vacuum antenna relays are virtually silent even in
the CW QSK mode thanks to specially designed mounting hardware.
• Less QRM and improved Electro Magnetic Compatibility during tuning. Amplifier tuning can be achieved
in less than 10 seconds at a quarter of nominal output power.
• Operates without special signals from the transceiver. "Ground on TX" (PTT) and 85W RF drive power
are sufficient.
• Broadband input matching circuit design provides excellent transceiver loading over the entire spectrum,
from 1.8 MHz up to 54 MHz.
• Uses a single 4CX1000A/8168 ceramic and metal radial beam tetrode with plate dissipation of 1000W
(forced air cooled, grid-driven), which is specifically designed for class AB1 RF linear amplifier operation.
• Permanent monitoring includes protection of plate and grid voltages and currents, as well as exhaust
air temperature. The Bias Optimizer decreases the heat dissipated from the tube, and there is automatic
protection against overheating in accordance with specifications of the tube manufacturer.
• Output RF arc protection is employed. This important feature safeguards the amplifier, antenna,
antenna selector, and tuner against severe damage in case of possible breakdown.
• High voltage power supply inrush current limitation. This feature reduces the risk to sensitive devices
connected to the same mains circuit (important when used portable) when the amplifier is turned on.
The amplifier can be configured for 8 nominal mains voltages: 100, 110, 120, 200, 210, 220, 230, and
240VAC, 50 or 60Hz.
• Continuous monitoring and/or selectable measurement of the 12 most important parameters of the
amplifier, exciter, and the selected antenna via the OLED.
1-5. Safety Considerations, Explicit Definitions
The ACOM2100 HF + 6 meters Linear Amplifier is a Safety Class I unit. The third grounding lead of its
mains cord (colored yellow with two green stripes) and the ground stud on the rear panel of the amplifier
(marked GND) should be connected to the station's grounding system for safe operation.
The amplifier is designed to meet international safety standards and complies with UL and CE safety and
electromagnetic compatibility requirements, as well as FCC regulations.
This operating manual contains information, precautions, indications for cautions and warnings that must
be followed by the user to assure safe operation and to keep the ACOM2100 operating properly.
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.
C A U T I O N
notes call attention to a procedure which, if not correctly performed, could result in
equipment damage, not only in the amplifier.
N O T E
notes call attention to a procedure which, if not correctly performed, could result in inconvenience.