Acom International Inc A1010 User Manual
Exhibit 6 page 3 of 15
1. GENERAL INFORMATION
Congratulations on purchasing one of the finest HF 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. We urge you to read all of the following materials before you
embark on operating your new amplifier.
1-1. Introduction and Description
This manual explains the installation, operation, and maintenance of the ACOM1010 HF linear amplifier.
The ACOM1010 is a self-contained linear amplifier that covers all amateur bands, from 1.8 through 29.7
MHz. It provides over 700-W PEP of output power (or 500 W in continuous-duty operation) with less than
60-W of drive. The amplifier is designed to tolerate VSWR levels of up to 3:1 throughout its operating
range, and tuning is simplified by Acom’s exclusive True Resistance Indicator (TRI). Also, a built-in antenna
selector switch with two outputs is included to provide instant choice of antennas. Importantly, a variety of
system parameters are continuously monitored and available to the operator to assure safe and efficient
amplifier operation.
1-2. Owner Assistance
If technical or operating assistance is needed, your local dealer should be contacted first. In the unlikely
event you need further information, you may get in touch with Acom by facsimile, telephone, email or
standard mail. Fax: + 359 2 920 9656; telephone: + 359 2 920 9655; e-mail:
event you need further information, you may get in touch with Acom by facsimile, telephone, email or
standard mail. Fax: + 359 2 920 9656; telephone: + 359 2 920 9655; e-mail:
acom@mail.orbitel.bg;
standard mail: Acom bul. N.Mushanov Nr.151, 1330 Sofia, Bulgaria.
1-3. Equipment Supplied
The ACOM1010 amplifier and this manual are shipped in a cardboard carton.
1-4. Features
• Easy
operation. The plate-load True Resistance Indicator (TRI) is an ACOM innovation that provides
quick and precise tuning, typically in less than 10 seconds. The auto-operate function will return the
amplifier to the OPERATE mode automatically after each protection trip, saving time and avoiding manual
switching.
• No tuner needed. No external antenna tuner is required as long as the antenna VSWR is 3:1 or lower.
The amplifier will perform the functions of an antenna tuner, enabling you to change antennas faster and
use them over wide frequency ranges.
• A
amplifier to the OPERATE mode automatically after each protection trip, saving time and avoiding manual
switching.
• No tuner needed. No external antenna tuner is required as long as the antenna VSWR is 3:1 or lower.
The amplifier will perform the functions of an antenna tuner, enabling you to change antennas faster and
use them over wide frequency ranges.
• A
durable
amplifier. This amplifier is both user-friendly and self-monitoring. It is designed to safely
withstand up to 240 W of reflected power, up to 100 milliseconds of drive spikes (RF "tails" after a PTT or
KEY release), and even operator tuning errors. It is also capable of operating at more than half its designed
output power at only 75% of nominal line (mains) voltage. Because it can tolerate deep voltage drops
(down to zero for 10 milliseconds) and 15% line voltage spikes, it is particularly suited for use in portable
environments, such as field days and DXpeditions.
• LED
KEY release), and even operator tuning errors. It is also capable of operating at more than half its designed
output power at only 75% of nominal line (mains) voltage. Because it can tolerate deep voltage drops
(down to zero for 10 milliseconds) and 15% line voltage spikes, it is particularly suited for use in portable
environments, such as field days and DXpeditions.
• LED
bar-graph
display. The upper LED bar-graph always reads peak forward power while the lower
LED bar-graph is for the reflected power. LED warning indicators are provided for abnormal conditions of
grid 1, grid 2, and plate parameters.
grid 1, grid 2, and plate parameters.
• Antenna
selection. Two antenna outputs are selectable on the front panel of the amplifier.
• Efficient
tuning. Antenna matching can be achieved in less than 10 seconds and at a quarter of nominal
output power, which produces lower risk of interference to other stations and greater safety to the amplifier
components.
components.
• Transceiver-independent. The amplifier operates without special signaling from the transceiver; it
needs only "ground on TX" and 60 W RF drive power to operate at full output power.
• Input
needs only "ground on TX" and 60 W RF drive power to operate at full output power.
• Input
matching. Broadband input matching circuitry offers excellent loading characteristics for the
driving transceiver, from 1.8MHz to 30MHz.
• Single tube operation. A single Svetlana 4CX800A (GU74B) high-performance ceramic-metal tetrode
with plate dissipation of 800W (forced air cooling, grid-driven) is used for maximum efficiency.
• Permanent monitoring and protection of the plate and grids currents. The Bias Optimizer minimizes heat
dissipated by the tube, assuring tube longevity.
with plate dissipation of 800W (forced air cooling, grid-driven) is used for maximum efficiency.
• Permanent monitoring and protection of the plate and grids currents. The Bias Optimizer minimizes heat
dissipated by the tube, assuring tube longevity.