Acom A1010 Users Manual

International, Inc.

Exhibit 6: User’s Manual

Exhibit 6 page 1 of 15

External Radio Frequency

Power Amplifier ACOM 1010

Model 1010

71 West street

Medfield, MA 02052

Tel: [phone]
fax: [phone]

E-mail:

[e-mail]

TABLE OF CONTENTS

Exhibit 6 page 2 of 15

1. GENERAL INFORMATION ................................................................................................................ .......................3

1-1. Introduction and Description........................................... .. ... .. .. ..... .. ... .. .. ..... ... .. .. ... .... ... .. .. ..........................................3

1-2. Owner Assistance ............................. .. ... .... ... .. .. ..... ... .. .. ..... .. ... .. ..... .. .. ..... .. ... .. ..... .. ... .. ...................................................3

1-3. Equipment Supplied............................................ .. ... .. ..... .. .. ... .... ... .. .. ..... .. ... .. ..... .. ... .. ..... .... ..........................................3

1-4. Features ................. .. ... .... ... .. .. ..... .. ... .. ..... .. .. ..... .. ... .. ..... .. ... .. ..... .. .. ... .... ... .. ..... .. .. ... ..........................................................3

1-5. Safety Considerations, Explicit Definitions...............................................................................................................4

2. INSTALLATION.......................................... ..... .. ... .. ..... .. ... .. ..... .. .. ..... .. ... .. ..... .. .. ... .... ... .. ... ..............................................5

2-1. Unpacking and Initial Inspection........ .. .. ... ..... .. .. ... .. ..... .. .. ... .. ..... .. .. ... .. ..... .. .. ... .. ... .... ... .. .. ... .... ...................................5

2-2. Line Voltage Selection............................................................................................... ...................................................5

2-3. Amplifier Location Selection................................................. .......................................................... ............................5

2-4. Connections............................................ .. .. ..... .. ... .. ..... .. ... .. ..... .. .. ... .... ... .. .. ..... .. ... .. ..... ...................................................5

3. POWER ON, CONTROLS AND INDICATORS.................................... ..... .. ... .. ..... .. ... .... ... .. .. ..... .. ... .... ... .. .. ..............7

4. OPERATION........ ... .. ... .... ... .. ..... .. .. ... .... ... .. .. ..... .. ... .. ..... .. ... .. ..... .. .. ..... .. ... .. ..... .. .. ... .... ... .. .................................................9

4-1. Turning ON and OFF........ .. ... .... ... .. .. ... .... ... .. .. ..... .. ... .. ..... .. ... .. .. ..... .. ... .. ..... .. .. ... .. ..... .. ... .. ............................................9

4-2. Changing Operate and Standby Modes........................................ .............................................................................9

4-3. RTTY Mode........ .. ..... .. .. ... .... ... .. .. ..... .. ... .... ... .. .. ..... .. ... .. ..... .. ... .. ..... .. .. ..... .. ... .. ..... .. .. ... .................................................10

4-4. Antenna change .................. .. ..... .. ... .. ..... .. ... .. .. ..... .. ... .. ..... .. .. ... .. ..... .. .. ... .... ... .. ... .... ... .. .. ...............................................10

4-5. Tuning........................... ..... .. .. ... .... ... .. ..... .. ... .. ..... .. .. ... .... ... .. .. ..... .. ... .... ... .. .. ..... ... .. ........................................................10

4-6 The Auto-Protection System.................................................................. ....................................................................12

5. MAINTENANCE............................................... ..... .. .. ..... ... .. .. ..... .. ... .... ... .. .. ..... .. ... .... ... .. ... .... ............................ ............12

5-1. Cleaning............................... .. ... .... ... .. .. ..... .. ... .. ..... .. ... .. ..... .. .. ... .. ..... .. .. ... .... ... .. .. ..... ......................................................12

5-2. Fuse Replacement................................................ .. ..... .. ... .. .. ..... .. ... .. ..... .. .. ... .. ..... .. ... .. ..... ............................ ................13

5-3. Tube Replacement............................ ..... .. .. ... .... ... .. ... .. ..... .. .. ... .... ... .. .. ... .... ... .. .. ..... .. ... .. ...............................................13

5-4. Simplified Schematic Diagram ......................................................................... ........................................................13

6. SPECIFICATIONS ............... .. ... .... ... .. .. ..... .. ... .. ..... .. ... .. ..... .. .. ..... .. ... .. ..... .. .. ... .... ... .. ... .... ... .. ..........................................15

6-1. Parameters ................... ..... .. .. ... .... ... .. ..... .. .. ... .... ... .. ... .... ... .. .. ..... .. ... .... ... .. .. ..... .. ... .. ......................................................15

6-2. Functions .......... ..... .. ... .. ..... .. .. ... .... ... .. .. ..... ... .. .. ..... .. ... .. ..... .. .. ... .... ... .. .. ..... .. ... .. ..... .. ......................................................15

6-3. Storage and Shipment............................. ..... .. .. ... .... ... .. ... .. ..... .. .. ... .... ... .. .. ... .... ... .. .. ..... ... ............................................15

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 Aco m by facsimile, telephone, email or
standard mail. Fax: + 359 2 920 9656; telephone: + 359 2 920 9655; e-mail: [e-mail];
standard mai l: 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
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
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 bar-graph display
LED bar-graph is for the reflected power. LED warning indicators are provided for abnormal conditions of
grid 1, grid 2, and plate parameters.

• Antenna selection

• Efficient tuning

output power, which produces lower risk of interference to other stations and greater safety to the amplifier
components.

• Transceiver-independent
needs only "ground on TX" and 60 W RF drive power to operate at full output power.

• Input matching
driving transceiver, from 1.8MHz to 30MHz.

• Single tube operation
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
dissipated by the tube, assuring tube longevity.

. No external antenna tuner is required as long as the antenna VSWR is 3:1 or lower.

. This amplifier is both us er-friendly and self-monitoring. It is designed to safely

. The upper LED bar-graph always reads peak forward power while the lower

. Two antenna outputs are selectable on the front panel of the amplifier.

. Antenna matching can be achieved in less than 10 seconds and at a quarter of nominal

. The amplifier operates without spec ial signaling from the transceiver; it

. Broadband input matching circuitry offers excellent loading characteristics for the

. A single Svetlana 4CX800A (GU74B) high-performance ceramic-metal tetrode

. The Bias Optimizer minimizes heat

Exhibit 6 page 4 of 15

• High voltage protection. Design of the high-voltage power supply eliminates the danger of turn-on
transients affecting sensitive devices connected to the same line (mains) circuit. Moreover, the amplifier can
be configured to accommodate any of 8 nominal line voltages between 100 and 240 V, 50 or 60 Hz.

• Band inclusion
the Federal Communications Commission (FCC), for United States users. Contact your dealer about
enabling those bands.

. The amplifier can be shipped with 10 and 12-meter capability disabled as required by

1-5. Safety Considerations, Explicit Definitions

The ACOM1010 HF Linear Amplifier is a Safety Class I unit. The grounding lead (yellow with 2 green
stripes) of the power cable 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 an assortment of precautions and warnings
that MUST BE FOLLOWED BY THE USER to ensure safe operation of the amplifier.

The safety definitions below apply to this operating manual:

A

warning is associated with a procedure that, if not properly performed, could result in a fire hazard or

electric shock, with resulting injury or death to the user.

A

caution is associated with a procedure that, if not properly performed, could result in damage to the

amplifier or other equipment.

A

note is associated with a procedure that, if not properly performed, could result in inconvenience or

physical injury to the user.

WARNING HIGH VOLTAGE!

The amplifier works with voltages up to 3000 V dc, which are potentially LETHAL! You must unplug the
amplifier from the line (mains) wall outlet and WAIT AT LEAST 30 minutes
amplifier. Do not touch any part inside while the amplifier is open because dangerous voltages may remain
present.

before removing the cover of the

WARNING HIGH VOLTAGE!

NEVER ALLOW ANYONE, ESPECIALLY CHILDREN, to push anything into the case holes or to otherwise
touch the amplifier or its connecting cables. There is grave danger of fatal electrical shock. NEVER
TOUCH AN ANTENNA during transmission as this may result in an electric shock or burns. NEVER
EXPOSE the amplifier to rain, snow or any liquids. AVOID placing the amplifier in excessively dusty
environments. DO NOT OBSTRUCT AIR INTAKE (bottom) or EXHAUST (top cover) areas of the amplifier.
Keep a minimum distance of 50cm (20 inches) clear of the air exhaust opening.

WARNING

Do not undertake or perform any repair or adjustment of your amplifier yourself, including any attempt to
change hardware or firmware. Doing so creates a potentially fatal shock hazard and may damage the
amplifier or equipment connected to it. Acom is not responsible for any such personal injury or equipment
damage, whether caused by accident or as a result of good faith efforts at repair or adjustment.

CAUTION

To avoid damage to the amplifier not covered by Acom’s warranty, the user is expected to read and comply
with the installation instructions contained in Section 2 of this operating manual. If there are any doubts or
questions concerning installation, operation or safety of the amplifier, the user should contact Acom.

Exhibit 6 page 5 of 15

2. INSTALLATION

2-1. Unpacking and Initial Inspection

NOTE
The first step to installation is to fully read this manual. Then, carefully inspect the shipping cartons for any
physical damage. Acom ships amplifiers in highly protected containers, but it cannot assure that
mistreatment by shippers will not occur. If there is any such damage, notify your Acom dealer immediately.
Failure to do so may invalidate your warranty. In any case, be sure to keep all packing materials for possible
future amplifier shipment.

2-2. Line Voltage Selection

CAUTION
To avoid damage to your amplifier and to maintain your warranty coverage, be certain that the amplifier line
(mains) voltage setting corresponds to your nominal line (mains) voltage.

Normally, the amplifier is delivered with the Voltage Selector set for a nominal line voltage of 240 V. If your
line voltage is not 240 V, you must contact your dealer for instructions on how to change the voltage
selector inside the amplifier. The only exception to this is if the unit has been custom ordered, in which case
the voltage selection will be noted in the Table of Individual Data (Table 2-1, below).

AMP s/n

Tube s/n

Voltage Selector VAC

Table 2-1. ACOM 1010 Individual Data

2-3. Amplifier Location Selection

Locate the amplifier as close as possible to where it can be used conveniently. Access to the command
knobs and indicator's area, as well as to the rear panel cabling, will be necessary.

No device that is sensitive to magnetic fields, including dynamic microphones, should be located adjacent to
the right side of the amplifier, where the power transformer is mounted. The amplifier should generally be
placed to the right of your transceiver. No temperature-sensitive devices should be located above the air
exhaust ports. This means the amplifier should not be located under a shelf or other structure that could
impede the free movement of air away from the amplifier.

DO NOT OBSTRUCT AIR INTAKE (bottom) and EXHAUST (top cover) areas of the amplifier. Keep a
minimum clear distance of 50cm (20 inches) above the exhaust opening.

2-4. Connections

Before applying line (mains) voltage to your amplifier, follow the steps listed below in the order they are
presented.

WARNING

Note that your grounding system may have to handle a current of more than 15 Amperes. This requires an
adequately sized and well-maintained conductor of at least 4 mm
case at your operating location, you should make the necessary changes using a licensed electrician.

2

(AWG 11 or SWG 13). If this is not the