User's Manual | ACOM 500S | 160-4
m Linear Power Amplifier
Page 12 of 66 | S e c t i o n GENERAL INFORMATION
March 2023
1.8.
Features
•
Easy to operate
The overall operation of ACOM 500S is extremely simplified: the screen menus are intuitive and easy to
follow, and no special skill is required from the operator when changing frequency bands.
•
User-friendly automatic control
When connected to a transceiver with CAT capability, the amplifier will track the operating frequency
and will change bands accordingly.
Even if not CAT connected, the amplifier monitors the input signal frequency through the built-in
frequency counter and automatically switches bands.
•
High-resolution color display
All amplifier status indications are explained via detailed text displayed on the 5" high-resolution color
display (108x65 mm, 800x480 pixels, and 24-bit color).
•
Transceiver-independent
Compatible with all transceiver models available on the market - does not need any special signals:
"ground on transmit" and less than 25 W of RF drive power is sufficient.
•
LDMOS transistor technology
The ACOM 500S amplifier uses a rugged LDMOS transistor.
•
Broadband input circuit
Broadband input circuit, providing transceiver load with SWR below 1.5 without retuning throughout
the whole frequency range from 1.8 to 70.5 MHz.
•
Intelligence
Takes care of itself via continuously working protection circuits in all modes.
The operator can monitor numerically more than 10 parameters of the amplifier in operation.
•
Remote control capabilities
Remotely controlled by RS-232 port and via the Internet by the ACOM eBox Ethernet Remote Control
device (function in development).
•
Easy maintenance
Detailed data (55 parameters) about each of the last 28 hard-fault protection trips is stored in the
amplifier's non-volatile memory.
•
Compact and lightweight construction
Convenient for expeditions and field operation due to the extremely compact and lightweight
construction and the built-in switching-mode power supply (SMPS). SMPS operates with extended mains
voltage range of 100-240 VAC, with no internal switch over. The consumed current is purely sinusoidal,
Power Factor Corrected (PFC) and inrush limited. This makes the operation of unstable mains and
generators easy and trouble-free.
•
Electromagnetic compatibility
Perfect electromagnetic compatibility (EMC) with both highly sensitive devices and the powerful devices
in the radio station (receivers, computers, other amplifiers) exceeds the standard EMC requirements
due to the use of built-in radio-frequency filters.
