X8NAA1011Amateur Radio RF Amplifier

Exhibit 6 page 1 of 16 Exhibit 6: User’s Manual External Radio Frequency Power Amplifier ACOM 1011 Model 1011 Array Solutions 2611 North Beltline Rd Suite 109 Sunnyvale, Texas 75182 USA Tel: 214 954 7140 fax: 214 954 7142 E-mail: [email protected] Exhibit 6 page 2 of 16 TABLE OF CONTENTS `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................................................................................................................... 8 4-1. Turning ON and OFF ................................................................................................................................ 8 4-2. Changing Operate and Standby Modes ................................................................................................. 9 4-3. RTTY Mode ................................................................................................................................................ 9 4-4. Antenna change ....................................................................................................................................... 9 4-5. Tuning ........................................................................................................................................................ 9 4-6 The Auto-Protection System .................................................................................................................. 11 5. MAINTENANCE ........................................................................................................... 11 5-1. Cleaning .................................................................................................................................................. 11 5-2. Fuse Replacement .................................................................................................................................. 12 5-3. Tubes Replacement ............................................................................................................................... 12 5-4. Simplified Schematic Diagram .............................................................................................................. 12 5-5. Service Functions .................................................................................................................................. 14 6. SPECIFICATIONS ........................................................................................................ 15 6-1. Parameters .............................................................................................................................................. 15 6-2. Functions ................................................................................................................................................ 15 6-3. Storage and Shipment ........................................................................................................................... 16 Exhibit 6 page 3 of 16 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 ACOM1011 HF linear amplifier. The ACOM1011 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 b…

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Exhibit 9 page 1 of 3 Exhibit 9: Additional Information in Response to 47 CFR Ch.1 Sec. 2.1033 External Radio Frequency Power Amplifier ACOM 1011 Model 1011 Array Solutions 2611 North Beltline Rd Suite 109 Sunnyvale, Texas 75182 USA Tel: 214 954 7140 fax: 214 954 7142 E-mail: [email protected] Exhibit 9 page 2 of 3 Additional Information in Response to 47 CFR Ch.1 Sec. 2.1033 Section c.1. The "ACOM1011” HF linear amplifier will be assembled and production testing performed in the Republic of Bulgaria by the private company “ACOM, OOD”. ACOM, OOD has been designed and manufactured external radio frequency power amplifiers for amateur use since 1990. The company has designed and manufactured the following types of amplifiers: - the "ETO 91B" HF Linear Amplifier accepted as FCC ID: DGVPA-91B which was marketed in the United States by Alpha/Power, Inc. of Colorado Springs, COLORADO continuously till 1999; - the "ACOM2000A” Automatic HF Linear Amplifier accepted as FCC ID: OITAA2000, which is in volume production and is being presently marketed in the United States by the Applicant; - the “ACOM1000” HF+6m Linear Amplifier accepted as FCC ID: OITAA1000, which is in volume production and is being presently marketed in the United States by the Applicant. - the “ACOM1010” HF Linear Amplifier accepted as FCC ID: SRRA1010, which is in volume production and is being presently marketed in the United States by the Applicant. ACOM, OOD is located at Bul.Nikola Musanov Nr.151, 1330 Sofia Bulgaria. The president and principal owner of ACOM, OOD is Mr. Vassil M. Vassilev. Applicant for certification, Array Solutions is a distributor of ACOM, OOD products in North America. With respect to the subject, "ACOM1011” HF linear amplifier equipment, Applicant is responsible for all aspects of quality assurance, marketing and service in USA, as well as for the compliance with FCC rules. Array Solutions is located at 2611 North Beltline Rd, Suite 109, Sunnyvale, Texas 75182, USA. Applicant has conducted or observed all design-proof testing and will re-test samples of production equipment on an ongoing basis to assure conformance to Applicant's quality standards, including all FCC regulatory requirements. Section c.2 This product designated "ACOM1011 HF linear amplifier”, hereafter "ACOM1011", is an external radio frequency power amplifier that covers all amateur bands from 1.8 through 29.7MHz and provides 700W PEP output power with typically 60W-exciter drive, or 500W output continuous carrier. It is based on and is similar to our previous model ACOM1010 (FCC ID: SRRA1010) but uses two less powerful and more popular tubes instead of a single more powerful one. The ACOM1011 will be marketed in the United States for use in the Amateur Radio Service. The FCC identifier for the ACOM1011 will be ............ Section c.3 A copy of the Installation and Operating Instructions for the ACOM1011 is included as Exhibit 6. Section c.4 The equipment is suitable for all types of emission authorized for amateur HF use in 97.305 of FCC rules. Section c.5 The equipment is designed to meet all specifications and FCC performance standards on all amateur bands from 1.8 to 29.7MHz. When delivered to any buyer within FCC's jurisdiction, the equipment is not operable on frequencies between 24MHz and 35MHz according to FCC 97.317(b). Section c.6 The equipment can be operated at any power level up to 700W PEP. Lower power linear operation (to 500W continuous carrier) is possible in the regime “RTTY” and by reducing RF excitation proportionately. An instantaneous peak-reading LED bargraph is provided for direct readout of output forward peak-power at any time. Another LED bargraph readout is foreseen for reflected output power. Exhibit 9 page 3 of 3 Section c.7 The equipment is rated for maximum RF power output of 700W PEP or 500W output continuous carrier, 50% duty cycle. It is limited to 800W maximum (including reflected power). Section c.8 Nominal voltages and currents at rated output (700W) are: DC plate voltage: 2250V for SSB and 2000V for RTTY; DC plate current: 0.5A for SSB and 0.45A for RTTY (bot tubes totally); DC screen voltage: 290V; DC screen current: 30mA (bot tubes totally); DC grid bias: -45...-50V (adjusted individually for 195mA idling plate current (both tubes totally). Section c.9 Tune-up procedure is simplified by a plate-load True Resistance Indicator (TRI) which helps the operator to quickly and precisely match antennas and eliminates probability of inadvertent mistune. The antenna impedance matching capability is up to VSWR 3:1 or higher. The procedure description is included in Exhibit 11, as well as in the Operating Manual - Exhibit 6, Section 4-5. Section c.10 Several features of the ACOM1011 design are specifically intended to reduce spurious radiation to a minimum. In the input circuit, a non-inductive resistor load ensures that VSWR of 1.3:1 or less is presented to the exciter at the RF input terminal over the entire frequency range. The output circuit comprises a classic Pi-L network, which suppresses the harmonic emissions. Results of our ACOM1011 performance tests are included in Exhibit 5. RF performance and spurious emissions are generally the same as that of "ETO91B", “ACOM2000A”, “ACOM1000”, and “ACOM1010”. Section c.11 A photograph showing the design of the FCC identification label for the ACOM1011 is included as Exhibit 1. Section c.12 Photographs showing the construction and layout of the ACOM1011 are included as Exhibits 2 and 7. Section c.13 Not applicable to external RF power amplifies. Section c.14 Not applicable, as provided in Section c.15. Section c.15 Measurement data indicating compliance with requirements of Part 97.307 and Part 97.317 is included as Exhibits 5 and 10. Section c.16 Not applicable to external RF power amplifiers. Section c.17 Not applicable to external RF power amplifiers. The subject equipment application is not part of a composite system.

Exhibit 3 page 1 of 2 Exhibit 3: Block Diagram External Radio Frequency Power Amplifier ACOM 1011 Model 1011 Array Solutions 2611 North Beltline Rd Suite 109 Sunnyvale, Texas 75182 USA Tel: 214 954 7140 fax: 214 954 7142 E-mail: [email protected] Exhibit 3 page 2 of 2 Block Diagram

Exhibit 2 page 1 of 2 Exhibit 2: External Photos External Radio Frequency Power Amplifier ACOM 1011 Model 1011 Array Solutions 2611 North Beltline Rd Suite 109 Sunnyvale, Texas 75182 USA Tel: 214 954 7140 fax: 214 954 7142 E-mail: [email protected] Exhibit 2 page 2 of 2 External Photos Fig.1 Front View Fig.2 Rear View

Exhibit 2 page 1 of 2 Exhibit 2: External Photos External Radio Frequency Power Amplifier ACOM 1011 Model 1011 Array Solutions 2611 North Beltline Rd Suite 109 Sunnyvale, Texas 75182 USA Tel: 214 954 7140 fax: 214 954 7142 E-mail: [email protected] Exhibit 2 page 2 of 2 External Photos Fig.1 Front View Fig.2 Rear View showing FCC ID

Exhibit 2 page 1 of 2 Exhibit 2: External Photos External Radio Frequency Power Amplifier ACOM 1011 Model 1011 Array Solutions 2611 North Beltline Rd Suite 109 Sunnyvale, Texas 75182 USA Tel: 214 954 7140 fax: 214 954 7142 E-mail: [email protected] Exhibit 2 page 2 of 2 External Photos Fig.1 Front View Fig.2 Rear View showing FCC ID

Exhibit 7 page 1 of 4 Exhibit 7: Internal Photos External Radio Frequency Power Amplifier ACOM 1011 Model 1011 Array Solutions 2611 North Beltline Rd Suite 109 Sunnyvale, Texas 75182 USA Tel: 214 954 7140 fax: 214 954 7142 E-mail: [email protected] Exhibit 7 page 2 of 4 Fig.1 Right side View Fig.2 Left side View Exhibit 7 page 3 of 4 Fig.3 Front panel lay down Fig.4 Top-front View Exhibit 7 page 4 of 4 Fig.5 Wattmeter & ant.selection (screen cover removed) Fig.6 Bottom View – Tube Deck (screen cover removed)

Exhibit 8 page 1 of 3 Exhibit 8: Operational Description External Radio Frequency Power Amplifier ACOM 1011 Model 1011 Array Solutions 2611 North Beltline Rd Suite 109 Sunnyvale, Texas 75182 USA Tel: 214 954 7140 fax: 214 954 7142 E-mail: [email protected] Exhibit 8 page 2 of 3 Operational Description The ACOM1011 is a complete and self-contained linear amplifier that covers the amateur band 1.8-29.7MHz and provides 700W-output power with typically 60W-exciter drive. It is based on and is very similar to our previous model ACOM1010 (FCC ID: SRRA1010) but the final tube has been replaced by two smaller and more popular tubes. Amplifier’s tuning is simplified by a plate-load True Resistance Indicator (TRI) which helps the operator to quickly and precisely match antennas and eliminates probability of inadvertent mistune. The antenna impedance matching capability is up to VSWR 3:1 or higher. A fixed matching circuit to the tubes input is employed which results in a very good load to the exciter over the entire frequency band from 1.8 to 29.7MHz, yielding a good linearity. Look at the schematic diagram (Exhibit 3). The high-performance ceramic-metal tetrodes V1, V2 type 4CX250B, with a plate dissipation of 250W each, are grid-driven. The input signal is fed through the fixed input-matching circuit, which comprises several L/C components and a 50 Ohm/100W RF swamping resistor (Rsw) in the INPUT PCB. This circuit tunes out the input capacitance of the tubes. The swamping resistor is not an attenuator but it is a termination load for the input matching circuit. It could not be eliminated since a severe impedance mismatch to the driver would prevent using the amplifier at all. The carbon-composite resistors Rc.1 and Rc.2 create a DC and RF negative feedback in the cathode circuit, thus stabilizing the gain and equalizing the tubes specimen performance. The varistor VSsg (located on Input PCB) in the screen grid circuit protects the tubes screen grid and the voltage regulator in the events of dynatron effect or a tube internal flashover. The nominal voltages and currents of the tubes at rated output power are as follows: DC plate voltage: 2250V for SSB and 2000V for RTTY; DC plate current: 0.5A for SSB and 0.45A for RTTY (bot tubes totally); DC screen voltage: 290V; DC screen current: 30mA (bot tubes totally); DC grid bias: -45...-50V (adjusted individually for 195mA idling plate current (both tubes totally). The combinations of Lp1/Rp1 and Lp2/Rp2 in the plate circuits suppress possible VHF/UHF parasitic generation. The output resonant circuit comprises the tubes output capacitance, Lp1, Lp2, CP1, CP2, CP3, LP1, LP2, CL1, CL2, CL3, CL4, and LL, all connected in a double-Pi-L network. It transforms the antenna impedance to the tubes-optimum load impedance, and besides suppresses the harmonic frequency emissions. The tank is tuned over the bands and the impedance matching is controlled by the ceramic-supported air variable capacitors CP1, CP2, CL1, and CL2. The DC plate voltage is fed through the plate-choke RFC1 to the anodes, in a parallel circuit with the tank. The series capacitors Cb3.1 and Cb3.2 prevent the DC voltage from reaching the resonant tank and/or amplifier’s output, while the low-pass filter Cb1.1/Cb1.2/RFC2/Cb2 prevents the RF currents from reaching the DC power source. The output signal is fed through a piece of coaxial cable, to the “RF OUTPUT” connector through the wattmeter PCB. A high-pass filter at the output (integrated with the wattmeter) eliminates the influence of eventual close-sited powerful LF/MF transmitters as well as 50/60Hz power lines on the amplifier. Also, it prevents DC high voltage from reaching the antenna output, thus improving operator’s safety. The amplifier is controlled by a microprocessor system, based on the ATmega micro- controller from Atmel. It uses a 4MHz clock, stabilized by a piezo-ceramic resonator. An intended constructive capacitance Ca feeds information from the plate RF voltage. Together with the directional RF wattmeter at the output, they are the main information sources for the Exhibit 8 page 3 of 3 control circuit to form the TRI aid during the antenna impedance matching process. The relay K1 on the wattmeter PCB switches over the antenna between transmit and receive. The relay K2 on the same PCB selects two different antenna outputs - A1 and A2. All supply voltages are delivered from conventional rectifiers and linear regulators and no switching supplies are used. The currents of the tubes control grids, screen grids, and plates, as well as the forward and reflected power, the alternative anode voltage etc are continuously monitored by the uP controller. Many software-derived protections are based on this information in order to insure normal tubes regime and antenna tuning, thus drastically reducing the probability of any inadvertent operator’s mistakes or apparatus irregularities that could arise during exploitation of the amplifier.

Exhibit 11 Page 1 of 12 Exhibit 11: Tuning Procedure and Parts List External Radio Frequency Power Amplifier ACOM 1011 Model 1011 Array Solutions 2611 North Beltline Rd Suite 109 Sunnyvale, Texas 75182 USA Tel: 214 954 7140 fax: 214 954 7142 E-mail: [email protected] Exhibit 11 Page 2 of 12 4-5. Tuning Tuning is possible only in the OPER mode. a) Preliminary information. Tuning the amplifier involves a procedure of matching the impedance of the antenna and transmission line to the tubes characteristic load resistance. This will ensure maximum plate efficiency and RF gain at nominal output power, with minimal distortion and spurious output. Note that REFLECTED POWER readings depend on the antenna and transmission line impedances only, and not on amplifier tuning. If the load impedance is not a nominally resistive 50-Ohms, the REFLECTED POWER reading will always show a reading, no matter what the tuning settings. Proper tuning is always necessary, however, and will allow you to operate at a high power level, without distortion or any danger to the amplifier. Note also that the real OUTPUT POWER presented to the load (the antenna and transmission line) is equal to the difference between the FORWARD and REFLECTED power readings. For instance, with a 2.5:1 VSWR, readings of 800 W and 150 W FORWARD POWER and REFLECTED POWER respectively, the real OUTPUT POWER is 650 W. At very high VSWR levels, such as when no antenna is connected or a badly mismatched antenna is used, the FORWARD and REFLECTED readings will be almost equal, while the real OUTPUT POWER (the difference between them) will be nearly zero. The amplifier can operate safely as long as the REFLECTED POWER is LESS THAN 250 W. Matching is assured for loads presenting a VSWR of up to 3:1. Nevertheless, for some loads and bands, matching is possible at even higher VSWR levels, but the drive power must be reduced to prevent the REFLECTED POWER from exceeding 250W. Failure to comply with these guidelines will cause the protection circuits to trip. For example, if the antenna VSWR were 5:1, the maximum attainable forward power would be 540 W, 240 W of reflected power and real output to the antenna and transmission line of only 300 W. In the event your antenna cannot be adjusted to produce a lower VSWR, an external antenna tuner may be deployed. CAUTION At elevated VSWR levels, high voltages and high currents are distributed along the coaxial cable to the antenna, risking internal arcing and heat generation, and likely damage to the cable and any antenna switches that may be used. It is recommended that VSWR levels of more than 3:1 not be permitted with coaxial cable above 14 MHz. It is advisable to adjust amplifier tuning when antennas have been changed, snow has fallen, new objects are in the near field of the antenna, etc. Such changes may affect antenna impedance. NOTE If you use more than one antenna on a band, the proper antenna must be selected prior to performing the tuning procedure outlined below. CAUTION To avoid damage not covered under warranty, do not switch the BAND switch knob while transmitting. As discussed above, hot switching will damage the amplifier’s band switch! CAUTION Also, never apply drive longer than one minute continuously without pausing for at least one minute to allow the tubes to cool. It is recommended that for initial tuning a frequency in the middle of the band be used. First, with no transceiver power applied, select the band. Then use Table 4-1 to achieve an approximate preset for both TUNE and LOAD capacitor knob settings: Exhibit 11 Page 3 of 12 Band LOAD TUNE MHz Knob Dial Knob Dial 1.800 - 2.000 47 - 71 54 - 32 3.500 - 4.000 34 - 56 51 - 33 7.000 - 7.300 32 - 39 36 - 30 10.100 - 10.150 62 - 63 50 - 48 14.000 - 14.350 37 - 41 38 - 31 18.068 - 18.168 41 - 43 50 - 48 21.000 - 21.450 59 - 62 16 - 10 24.890 - 24.990 50 - 52 49 - 46 28.000 - 29.700 63 - 69 23 - 10 Table 4-1. Approximate tuning preset b) Tuning Procedure. (1) Once the antenna and band have been selected (and the TUNE and LOAD adjustments have been initially set as indicated in Table 4-1), apply between 10 and 20 W of continuous (key down CW) signal. (2) Look at the upper LED bar-graph (FORWARD POWER) and adjust the TUNE (right hand) capacitor for maximum indication. (3) Watch the TRI indicator above the LOAD (left hand) capacitor and turn the LOAD capacitor in the indicated direction to center the green LED indicator light. (4) Increase the drive power to get the desired nominal output; then repeat steps (2) and (3), always peaking output with the TUNE adjustment. NOTE No light on the TRI indicator means that the tuning is too far off. To correct this, turn the LOAD and TUNE knobs around the table-suggested positions until the TRI indicator illuminates. no light: tuning is far left: tuning is far right: marker inside: LOAD is tuned: use TUNE knob turn LOAD knob turn LOAD knob turn LOAD knob turn TUNE knob for max. Power to the right to get to the left to get slightly left to peak Forward to get any marker the inside markers inside markers to center it Power Fig. 4-1. Using TRI tuning aid The TRI indicator will not illuminate until at least 20 W of forward power (output) is achieved. In the event successful matching cannot be accomplished, check the BAND switch position and antenna selection. Then check the antenna VSWR at the same drive frequency. c) Tuning hint. A benefit of TRI is that the knob positions are virtually independent. The plate-load resistance decreases to the right and increases to the left of the TRI center. A centered tuning indication corresponds to the proper LOAD capacitor tuning, which presents an optimum load resistance to the tubes. If the LOAD knob is turned to the left with a centered TRI, there will be more gain, but less linearity. When available drive power is insufficient or when less output but better efficiency are needed, e.g., for RTTY and SSTV, this may be desirable. Tuning to the right of the cente…

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Exhibit 4 page 1 of 15 Exhibit 4: Schematics External Radio Frequency Power Amplifier ACOM 1011 Model 1011 Array Solutions 2611 North Beltline Rd Suite 109 Sunnyvale, Texas 75182 USA Tel: 214 954 7140 fax: 214 954 7142 E-mail: [email protected] Exhibit 4 page 2 of 15 Exhibit 4 page 3 of 15 Exhibit 4 page 4 of 15 Exhibit 4 page 5 of 15 Exhibit 4 page 6 of 15 Exhibit 4 page 7 of 15 Exhibit 4 page 8 of 15 Exhibit 4 page 9 of 15 Exhibit 4 page 10 of 15 Exhibit 4 page 11 of 15 Exhibit 4 page 12 of 15 Exhibit 4 page 13 of 15 Exhibit 4 page 14 of 15 Cable Harness Connections: CONTROL JP1 Signal name To: 1 +5V MAINS JP1:1 2 GND MAINS JP1:2 3 g1warn MAINS JP1:3 4 g2warn MAINS JP1:4 5 *KEYIN Rear panel - KEYIN 6 ipg2 MAINS JP1:6 7 G1VL MAINS JP1:7 8 ENAB MAINS JP1:8 9 RTTY MAINS JP1:9 10 *STST MAINS JP1:10 11 GND Rear panel - KEYIN 12 +15V MAINS JP1:12 CONTROL JP2 Signal name To: 1 fwdi WATTMETER JP1:1 2 rfli WATTMETER JP1:2 3 *ORCW WATTMETER JP1:3 4 GND WATTMETER JP1:4 5 *OUTR WATTMETER JP1:5 6 aavd WATTMETER JP1:6 7 GND INPUT JP1:6 8 *INR INPUT JP1:2 9 GND - 10 *ANT2 WATTMETER JP1:10 MAINS JP1 Signal name To: 1 +5V CONTROL JP1:1 2 GND CONTROL JP1:2 3 g1warn CONTROL JP1:3 4 g2warn CONTROL JP1:4 5 GND - 6 ipg2 CONTROL JP1:6 7 G1VL CONTROL JP1:7 8 ENAB CONTROL JP1:8 9 RTTY CONTROL JP1:9 10 *STST CONTROL JP1:10 11 GND - 12 +15V CONTROL JP1:12 MAINS JP2 Signal name To: 1 +15V INPUT JP1:5 2 GND INPUT JP1:3 3 BIAS INPUT JP1:8 4 n/c - 5 +265V INPUT JP1:10 INPUT JP1 Signal name To: 1 aavi WATTMETER JP1:7 2 *INR (CONTROL JP2:8) Exhibit 4 page 15 of 15 3 GND (MAINS JP2:2) Cable Harness Connections (continued): 4 +15V WATTMETER JP1:8 5 +15V (MAINS JP2:1 6 GND (CONTROL JP2:7) 7 GND WATTMETER JP1:9 8 BIAS (MAINS JP2:3) 9 n/c - 10 +265V (MAINS JP2:5) WATTM. JP1 Signal name To: 1 fwdi (CONTROL JP2:1) 2 rfli (CONTROL JP2:2) 3 *ORCW (CONTROL JP2:3) 4 GND (CONTROL JP2:4) 5 *OUTR (CONTROL JP2:5) 6 aavd (CONTROL JP2:6) 7 aavi (INPUT JP1:1) 8 +15V (INPUT JP1:4) 9 GND (INPUT JP1:7) 10 *ANT2 (CONTROL JP2:10) End

Exhibit 5 page 1 of 6 Exhibit 5: EMI Test Report External Radio Frequency Power Amplifier ACOM 1011 Model 1011 Array Solutions 2611 North Beltline Rd Suite 109 Sunnyvale, Texas 75182 USA Tel: 214 954 7140 fax: 214 954 7142 E-mail: [email protected] Exhibit 5 page 2 of 6 EMI Test Report for ACOM Product Name: ACOM1011 Regulation: FCC, Part97 Sub Part D Date of test: JAN 20 2010 Tested by: Eng. Dr. Stanimir Lekov, R&D at ACOM OOD Test Method: FCC, Part 97.317 (a)(1)(2)(3), (b)(1)(2), (c)(i)(ii) Part 97.307 (d), (e) Responsible Parties Manufacturer: ACOM OOD – Bulgaria Applicant: Array Solutions EUT Type/Model #: Linear Amplifier ACOM1011 Test Location: ACOM OOD laboratory EUT Description The EUT (ACOM1011) is a Linear Amplifier for Amateur Radio. The tests were run in a typical configuration including the following support equipment: 1) H.F. Transceiver 2) Power Supply for transceiver Reason for Test Qualification for FCC Part 97 Changes made during test: none Deviations from standard test method: none Test Summary The ACOM1011 complied with FCC Part 97 Subpart D, 97.307 and 97.317 Limits for Amateur Radio equipment when tested in the system configuration defined herein. The following table indicates the measurement points and test results for the harmonic emissions to the tenth order: Exhibit 5 page 3 of 6 Power Gain per 97.317-(a) (1) (2) (3), (c) (6) (ii) Spurious emissions per 97.307 (e) Frequency f 1 , MHz Input Power, W Output Power, W Amplifier Gain, dB 2f1, dBc 3f1, dBc 4f1, dBc 5-10f1, dBc worst case 1.900 55.6 700 11.0 -53.1 -78.2 -83.8 -71.0 3.750 65.3 700 10.3 -52.8 -98.0 -88.6 -92.3 7.150 69.5 700 10.0 -57.6 -98.1 -97.4 -93.8 10.125 65.3 700 10.3 -53.7 -95.5 -67.3 -95.0 14.175 62.4 700 10.5 -57.8 -96.3 -88.8 -85.1 18.100 63.8 700 10.4 -53.2 -78.1 -78.5 -75.3 21.225 61.0 700 10.6 -62.0 -90.2 -84.5 -77.0 Amplifier was not capable of operation on any frequency or frequencies between 24 and 35MHz as measured at the points below per 97.317-(b) (1) (2). Data for: amplifier in Stand-by / amplifier ON. 24.000 50 49.2 / 166 -0.07 / 5.21 26.000 50 48.3 / 47.5 -0.15 / -0.22 27.120 50 48.3 / 35.1 -0.15 / -1.54 28.000 50 48.3 / 28.3 -0.15 / -2.47 35.000 50 48.0 / 1.24 -0.18 / -16.1 Amplifier was not capable of full power output and the gain is less than 11.3dB when driven with less than 50 watts per 97.317-(c)(6) (i)(iii). 1.900 30 414 11.4 3.750 30 369 10.9 7.150 30 321 10.3 10.125 30 361 10.8 14.175 30 361 10.8 18.100 30 361 10.8 21.225 30 378 11.0 24.930* 30 367 10.5 28.500* 30 369 10.9 After owner modification to activate 24-28 MHz bands: 24.930* 73.7 700 9.8 -72.8 -81.6 -80.3 -60.9 28.500* 59.7 700 10.7 -67.0 -82.6 -82.0 -70.4 *Not usable as shipped; data applicable only after enabling of 24.5 & 28 MHz bands as follows. Exhibit 5 page 4 of 6 The following table indicates the measurement points and test results for the Inter Modulation Distortions to the 11-th order: Inter-modulation in dB relative to 700W PEP per 97.307(a)(b) Order: D3 D5 D7 D9 D11 and higher Freq. (MHz) dB dB dB dB dB 1.900 -43 -48 -45 -48 -51 3.750 -41 -48 -45 -48 -51 7.150 -41 -47 -46 -47 -50 10.125 -42 -47 -46 -48 -51 14.175 -42 -47 -46 -48 -51 18.100 -41 -47 -47 -49 -51 21.22…

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