• 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.
• 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.
• Efficient tuning
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.
• Transceiver-independent
The amplifier operates without special signals from the transceiver - "Ground on TX" and 60 W RF
drive power are sufficient.
• Broadband input matching
Broadband input matching circuit resulting in very good load to the transceiver over the entire
spectrum from 1.8 MHz up to 54 MHz.
• Single tube operation
Uses a single 4CX800A (GU74B) Svetlana high-performance ceramic-metal tetrode with plate
dissipation of 800 W (forced air cooling, grid-driven).
• Tube protection
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.
• Output RF Arc protection
An output RF Arc protection is employed. It safeguards the amplifier, antenna, antenna selector, and
tuner against severe damage in case of possible breakdown.
• High voltage protection
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). Moreover,
the amplifier can be configured for 8 different nominal line voltages: 100, 110, 120, 200, 210, 220,
230, or 240 VAC, 50 or 60 Hz.
• Continuous measuring and/or selectable monitoring
Continuous measuring and/or selectable monitoring of 12 most important parameters of the
amplifier, exciter, and antennas via OLED display.
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