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ACOM 1010 HF Linear Amplifiers

ACOM 1010 HF Linear Amplifiers cover all bands from 1.8 through 29.7 MHz. They provide over 700 W PEP output (or 500 W continuous-modes) with less than 60 watts of drive and operate without special transceiver signaling; they need only "ground on TX" and the required drive. ACOM's exclusive True Resistance Indicator (TRI); enables faster antenna changes and use over wider frequency ranges. Also, a built-in antenna selector switch with two outputs is included to provide instant choice of antennas. Antenna matching can be achieved in less than 10 seconds and at a quarter of nominal output power, which results in lower risk of interference to other stations and greater safety to the amplifier components. A single ACOM 4CX800A high-performance ceramic-metal tetrode with plate dissipation of 800 watts is used for maximum efficiency. These amplifiers are self-monitoring. They are designed to safely withstand up to 240 watts of reflected power, up to 100 milliseconds of drive spikes (RF "tails" after a PTT or KEY release), and even operator tuning errors. They are also capable of operating at more than half their designed output at only 75 percent of nominal line voltage. Because they can tolerate deep voltage drops and 15 percent line voltage spikes, they are particularly well-suited for use in portable environments, such as Field Day and DXpeditions. Importantly, a variety of system parameters are continuously monitored and available to the operator to assure safe and efficient amplifier operation. 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 eight nominal line voltages between 100 and 240 V, 50 or 60 Hz. Please see the SPECIAL Note, below. ACOM 1010 specifications: * Frequency Coverage: All amateur bands in the 1.8-29.7MHz frequency range * Power Output: 700 W PEP or 500 W continuous modes. * Intermodulation Distortion: Better than 35 dB below rated output. * Hum and noise: Better than 40 dB below rated output. * Harmonic Output Suppression: Better than 50 dB below rated output. * Input and Output Impedance: Output: 50 Ohm unbalanced, SO-239 connectors; Input circuit: broadband, VSWR less than 1.3:1, 1.8-30 MHz continuously (no tuning, no switching); Bypass path: VSWR less than 1.1:1, 1.8-30 MHz continuously, 200 W maximum * RF Gain: 11dB, frequency response less than 1dB (50 to 70 W drive for rated output) * AC Power: 85-132 V/170-264 V ac (100, 110, 120, 200, 210, 220, 230 & 240 V nominal taps, plus 10 percent to minus 15 percent tolerance), 50-60 Hz, single phase, 1,200 VA * SPECIAL Note: Order part number AOM-1010 to wire your AC plug after removing European plug yourself; order part number AOM-1010-240 for pre-wired 240 volt operation (NEMA 6-15P) or part number AOM-1010-120 for pre-wired 120 volt operation (NEMA 5-15P). * Operating environments: Temperature range; 32 to 122 degrees F, Humidity; up to 95 percent at 95 degrees F, Altitude; up to 10,000 above sea level without output deterioration. * Complies with FCC-regulations as well as CE safety and electromagnetic compatibility requirements * Dimensions, (in.) 15.83 W x 12.4 D x 6.5 H * Weight: 39.7 lbs. Note: For additional information, please look at the files under the "Documentation" tab. Get one of these highly-advanced HF amplifiers for your shack. Order an ACOM 1010 HF Linear Amplifier from DX Engineering… today! Note: During and after your amplifier's warranty period, DX Engineering can direct you to the appropriate location for repairs for ACOM amplifiers. That facility will charge a repair fee for services outside the warranty period.

4.87 out of 5 stars ( 53 )

$3,376.99

ACOM 1200S Solid State HF + 6 Meter Amplifiers

ACOM 1200S Solid State HF + 6 Meter Amplifiers cover the amateur bands from 1.8 through 54MHz. They provide 1000W output power (PEP or continuous carrier) with less than 50W of drive on 240VAC (max. 500W out on 25W RF input on 120VAC). All operational conditions are visible on a multi-function high-resolution color display. Note: To install your own power plug, order AOM-1200S (you remove the European plug) For a 120 Volt plug (NEMA 5-15P), order AOM-1200S-120 (500 watts) For a 240 Volt plug (NEMA 6-15P), order AOM-1200S-240 (1,000 watts) All part numbers include a power cable. Features include: * Five-inch (5 in.) (108x65mm) high resolution color display, 800x480 pixels and 24-bit color * Final stage uses rugged LDMOS transistor - BLF188XR or equivalent. * Compatible with all transceiver models available on the market - does not need any special signals: "ground on transmit" (PTT out) and typically less than 50W of RF drive power is sufficient for full power on 240VAC; a maximum of 25W input on 120VAC. * Broadband input circuit provides a perfect transceiver load with SWR below 1.2:1 (typically 1.1:1), with no amplifier tuning, throughout the frequency range 1.8 to 54MHz * The overall operation of ACOM 1200S is extremely simplified: the screen menus are intuitive and easy to follow * Optional automatic control – when connected to a transceiver with a CAT interface, the amplifier monitors constantly, follows the operating frequency, and changes the bands accordingly * If NOT CONNECTED with CAT interface, the amplifier monitors the RF input with a built-in frequency counter and automatically switches bands * Remotely controlled by RS232 interface * Protects itself during operation due to continuous protection circuits in all modes * The user can monitor more than 10 parameters * Easy maintenance – detailed data (55 parameters) about each of the last 28 protection trips is stored in the amplifier's nonvolatile memory * Convenient field operation: extremely compact and lightweight construction, extended mains voltage range (93V to 265V), limited inrush current and Power Factor Correction (PFC) – all significant parameters in operation from unstable mains, generators etc. features achieved thanks to the built-in switching mode power supply (SMPS) a) Rated output power: 1000W plus/minus 0.5dB, PEP or continuous carrier (1200W PEP max.). b) Intermodulation distortions (IMD3): better than 30dB below the rated PEP output. c) Harmonic and parasitic emissions output suppression: better than 60dB (65dB typically). d) Input and output impedances: nominal value: 50 Ohm unbalanced, UHF (SO-239) type connectors; * Input circuit: broadband, SWR below 1.2:1 (1.1:1 typically); 1.8 – 54 MHz continuous range without retuning or switching * Admissible SWR at the output load (the antenna): up to 3:1 with proportional power reduction and up to 1.5:1 for full output power e) RF power gain: 13dB plus minus 1dB f) Automatic AC voltage Input Handling: 93 to 265VAC (no internal wiring change needed) g) AC Input power consumption at full output power: 2000 VA or less with a power factor of 0.95 or higher h) AC mains power consumption in Low Energy (waiting) mode: less than 1VA i) Complies with EU safety regulations and electromagnetic compatibility standards, as well as with the US Federal Communications Commission (FCC) rules j) Environmental * Temperature range: -10 C to +40 C (14 F to 104 F) * Relative air humidity: up to 95 percent at 35 C (95 F) k) Dimensions and weight: (D x W x H) 418 x 372 x 162 mm (16.46 x 14.65 x 6.38 In); 14.5 kg (31.97 lbs.) Supplied with: - A power cord - A manual with a CE declaration of compliance; - Two 10A fuses for operation on 200-240VAC or 100-120VAC mains. These amplifiers offer fully automatic operation and superior solid state performance. To upgrade your station, order ACOM 1200S Solid State HF + 6 Meter Amplifiers from DX Engineering.

4.9 out of 5 stars ( 29 )

$4,750.99

Manufacturer Rebate

ICOM IC-PW2 HF/50 MHz, ALL Band 1kW Linear Amplifiers

The ICOM IC-PW2 HF/50 MHz ALL Band 1 kW Linear Amplifier is a high performance, multi-function linear amplifier and is considered one of the key pieces of equipment for keen competition in DX hunting and contesting. Featuring high power and full duty cycle operation, the IC-PW2 uses new 65V LDMOS power transistors (MRFX1K80HR5) and a high-efficiency power supply to achieve a full 1kW output with a 200VAC Input. The IC-PW2 instantly operates at full power once turned on. Use the IC-PW2 for long contest hours or full-duty FT8 operation. Experience linearity and clean transmission with Digital Pre-Distortion (DPD) Technology with IC-7610. This technology corrects the signal distortion from the IC-PW2, by applying inverse distortion to the output signal from the IC-7610 exciter in advance

4.33 out of 5 stars ( 6 )

$5,499.95

ACOM 700S Solid State 1.8-54 MHz Linear Amplifiers

ACOM 700S Solid State 1.8-54 MHz Linear Amplifiers are state-of-the art amplifiers that cover all amateur bands from 160 through 6 Meters. These amps provide 700 W output power (PEP SSB or CW modes). Working parameters of the amplifier are indicated on a multi-function, high-resolution 5 inch color display. Amplifier control is accomplished with only six buttons on the front panel or directly by CAT interface from the transceiver or remotely by RS232 interface. ACOM 700S amplifiers are compatible with all transceiver models available on the market. The broadband input matches to the transceiver with low SWR over the entire range of 1.8-54 MHz. Full output operation only requires a maximum of 40 watts drive and the typical "ground on transmit" (PTT) keying with no special signals required. The overall operation of ACOM 700S amplifiers is extremely simplified. Screen menus are intuitive and easy to follow and no special skill is required from the operator when changing frequency bands. The amplifier monitors the frequency of the input signal through the built-in frequency counter and automatically switches bands. A band data or CAT interface connection from the transceiver is NOT required for automatic band changing. These amplifiers take care of themselves during operation, due to the continuously-working protection circuits in all modes. The operator can digitally monitor more than 10 parameters concerning the working conditions of the amplifier. Detailed data (55 parameters) about each of the last 28 hard-fault protection trips is stored in the amplifier's nonvolatile memory. ACOM 700S amplifiers are perfect for DXpeditions and field operation. They are extremely compact and employ light-weight construction thanks to the built-in switching-mode power supply. They operate on an extended mains voltage range** (100-120VAC and 200-240VAC) by changing only the main fuses - no internal switching is required. Please read the SPECIAL NOTE at the end of the specifications. ACOM 700S Solid State HF/6-Meter Amplifiers are among the finest and most modern linear amplifiers available anywhere in the world. These outstanding amplifiers are available from DX Engineering! ACOM 700S Solid State Linear Amplifier Specifications: * Rated output power: 700W PEP SSB or CW * Intermodulation distortion (IMD3): Better than 31dB below rated PEP output * Harmonic and parasitic emissions suppression: Better than 60dB (65dB typical) * Input and output impedances: SO-239 UHF female connectors; 50 ohm unbalanced output; * Input circuit: broadband, SWR below 1.2:1, 1.8 to 54 MHz continuous without retuning or switching * RF power gain: 14dB +/- 1dB * Complies with US Federal Communications Commission (FCC) rules and the EU safety regulations and electromagnetic compatibility standards * Temperature range: 14 degrees F to 104 F (-10 C to +40 C) * Relative humidity: up to 95 percent at 95 F (35 C) * Dimensions (WHD): 12.8 x 5.6 x 14.2 in. (326 x 143x 365 mm) * Weight: 26 lbs. (11.8 kg) **Mains supply voltage: 100-240V, 50-60 Hz, single phase, automatic switching supply; no internal change required for either mains voltage; European style 5x20mm fuses rated for 250VAC for correspond mains: 10A fuses for operation from 200-240VAC, 16À fuses for operation from 100-120VAC. SPECIAL NOTE: Due to power efficiency the use of 240 Vac service is highly recommended. -AOM-700S-240 is pre-wired with NEMA 6-15P USA plug for 240 volt operation. - AOM-700S-120 is pre-wired with NEMA 5-15P for 120 volt operation. - AOM-700S has NO PLUG; order this model to wire your own AC plug for either voltage. * AC load: 1,350VA or less with a power factor of 0.95 or higher * AC load in Low Energy (standby) mode: less than 1VA For additional information, please check the "Documentation" tab.

4.97 out of 5 stars ( 35 )

$4,367.99

ACOM 2020S Solid-State 1.8-54 MHz Linear Amplifiers

ACOM 2020S Solid-State 1.8-54 MHz Linear Amplifiers are state-of-the-art 1500W Solid State linear amplifiers that deliver maximum legal power in all modes and operate in all Amateur Radio HF bands from 160 through 6 meters. This amplifier is extremely operator-friendly with a remote console unit (RCU) that features a high-resolution color touch screen. The 2020S amplifier is transceiver-independent, meaning that it is compatible with all transceiver models. With no need for special signals, only ground on transmit and RF drive power, any transceiver may be used. The 2020S monitors the input signal frequency with its built-in frequency counter and automatically switches bands when there is no transceiver frequency interface cable. However, when interfaced with a transceiver with CAT, COM or CI-V capability, the 2020S tracks the transceiver operating frequency and automatically changes bands accordingly. The Acom 2020S supports direct Remote Control via the Internet with an integrated web interface and built-in Ethernet RJ45 LAN port or Wi-Fi adapter. The Acom 2020S amplifier employs two powerful modules in a power splitting/combining technique that has been time-proven in high-power commercial applications to provide sufficient output headroom. The input and output ports are isolated from each other, reducing intermodulation and improving resistance to self-excited oscillation and reliability. A broadband input circuit provides a perfect transceiver load with SWR below 1.2 without re-tuning throughout the entire frequency range from 1.8 to 54 MHz. The two final PA stages use a rugged MRFX1K80HR5 or equivalent LDMOS transistor. The 2020S features built-in intelligence that continuously monitors system health and protection circuits in all modes. Also, the operator can monitor eleven different parameters of amplifier operation. Detailed fault data is stored in the amplifier's memory and shows up to 55 parameters for each of the last 28 hard-fault protection trips. Compact and lightweight construction with a built-in switching-mode power supply that operates within a power mains voltage range of 200-240 VAC, ±10% (180-264 VAC limiting values), with no internal switch over. The consumed current is purely sinusoidal, power factor corrected and in-rush current limited, which makes the operation of this amplifier from unstable AC mains and generators easy and trouble-free.

4.38 out of 5 stars ( 8 )

$7,934.99

OM Power OM-4001AMARS HF Plus MARS 1,500W+ Auto Tune Linear Amplifiers

OM Power OM-4001AMARS HF Plus MARS 1,500W+ Auto Tune Linear Amplifiers (OMR-OM-4001A-MARS) features two FU-728F Ceramic Tetrode tubes capable of providing stable, full legal limit all-mode output power and frequency coverage of the Amateur bands ranging from 1.8 to 29.7MHz. CW enthusiasts will enjoy QSK – full break-in operation. The Intuitive 4.3-Inch color Touch Screen and front panel indicators allow you to stay informed about the operational status of the amplifier and effortlessly gain access to advanced features and settings. Full band change or frequency reading compatibility is built in for modern transceivers and RF Sense band change supports legacy transceivers. The OM-4001AMARS supports automatic antenna switching for up to 10 antennas. Remote Control operation is supported via LAN (Ethernet) and freely available PC program download. The OM-4001AMARS is considered one of the most compact, rugged and capable 1500W+ HF auto tune amplifiers on the market.

Not Yet Reviewed

$12,099.00

ACOM 1000 HF + 6 Meter Linear Amplifiers

ACOM 1000 HF + 6 Meter Linear Amplifiers are the world's best value in an Amateur HF amplifier. These amps provide you a comfortable 1,000 watts output on all amateur bands from 160 through 6 meters. The plate-load True Resistance Indicator (TRI) is a powerful tuning aid which helps the operator to quickly and precisely match antennas. The auto-operate function (when enabled) maintains the amplifier in OPERATE mode for you, saving on manual operations. Broadband input matches to the transceiver over the entire range of 1.8-54 MHz. ACOM 1000 amplifiers are both user-friendly and look after themselves. They are designed to safely withstand up to 300 watts reflected power, drive spikes of up to 100 milliseconds duration, drive RF "tails" after a PTT or KEY release and the operator's inadvertent tuning errors. They also withstand a "soft" AC line and will deliver more than half power at only 75 percent of nominal mains voltage. They can withstand voltage drops for up to 10 milliseconds, and up to 15 percent higher line-voltage spikes. These details are all important, particularly when used at Field Day, on DXpeditions and other portable operations. Be sure to read the SPECIAL Note, below. An ACOM 4CX800A high-performance ceramic/metal tetrode with plate dissipation of 800 watts is employed. On-board processing provides permanent monitoring and protection of plate and grid voltages and currents, as well as the exhaust temperature. Text messages, 12 different parameters, and strip peak-reading PEP meter are displayed on a dot-matrix, back-lighted LCD. LED indicators are provided for OPERATE, attenuator-on, and ON/OFF conditions. Records of the amplifier internal status are stored in nonvolatile memory for the seven most-recent auto-protection trips. This information is very valuable should diagnostics be needed. The input bypassing and the vacuum antenna relays are very quiet even in CW mode due to their special mounting. This results in virtually noise-free QSK! ACOM-1000 details: * Frequency Coverage: 1.8-54 MHz * Power Output: 1,000W PEP or continuous carrier; for continuous carrier transmissions longer than 15 minutes the external auxiliary fan must be installed * Intermodulation Distortion: Better than 35dB below rated output * Hum and noise: Better than 40dB below rated output * Harmonic Output Suppression: 1.8-29.7 MHz; 50dB below rated output, 50-54 MHz; 66dB below rated output * Input and Output Impedances: Nominal values: 50 Ohm unbalanced output; Input circuit: broadband, VSWR less than 1.3:1, 1.8-54 MHz; Bypass path: VSWR less than 1.1:1, 1.8-54 MHz continuously * RF Gain: 12.5dB typically, frequency response less than 1dB (50-60W drive power for rated output) * Primary Power: 170-264V (200, 210, 220, 230 and 240V nominal taps), 50-60Hz, single phase, 2200VA consumption at rated output. 230 or 240 volts recommended for USA * SPECIAL Note: Order part number AOM-1000 to wire the AC plug and voltage selection yourself; order part number AOM-1000-240 for pre-wired 240 volt operation or part number AOM-1000-120 for pre-wired 120 volt operation * Complies with CE safety and electromagnetic compatibility requirements as well as FCC-regulations * Size: 16.6 x 14 x 7.2 in. * Weight 58.5 lbs. * Operating environments: Temperature range 32 to 122 degrees F, Humidity up to 95 percent at 95 F * Altitude: up to 3,000m (10,000 ft.) above sea level without output deterioration Note: For additional information, please look at the files under the "Documentation" tab. ACOM says that these are the "world's best value" in an Amateur HF amplifier. Order one of these ACOM 1000 HF + 6M Linear Amplifiers from DX Engineering and decide for yourself! Note: During and after your amplifier's warranty period, DX Engineering will provide service and repair for ACOM amplifiers. A repair fee will be charged for services outside the warranty period.

5.0 out of 5 stars ( 47 )

$4,364.99

ACOM 2100 HF + 6 Meter Linear Amplifiers

The ACOM 2100 is a complete and self-contained linear amplifier that covers all Amateur bands from 1.8 through 54 MHz and provides over 1500W PEP or continuous carrier output power, typically at only 40 to 55 watts drive. The 2100 utilizes a single 4CX1000A ceramic and metal radial-beam tetrode vacuum tube with plate dissipation of 1,000 watts. This manually tuned amp features many automatic functions. Tube protection includes permanent monitoring and automatic protection of plate and grid voltages and currents, as well as the exhaust air temperature, essential data that indicates the power tube operating conditions. The 2100 amplifier features virtually silent high-speed break-in CW (QSK). The input bypassing and vacuum antenna relays are virtually silent even in the CW QSK mode; thanks to specially designed mounting hardware. The 2100 is designed to safely withstand up to 400 watts of reflected power and up to 100 milliseconds duration of drive spikes. Additionally, these amplifiers continue to function with "soft" AC mains and will deliver more than half power at only 85 percent of nominal mains voltage. They can withstand voltage drops for up to 10 milliseconds and can tolerate 15 percent mains voltage spikes; especially important on Field Day, during DXpeditions, and at portable operating events where emergency power is relied upon. Be sure to read the SPECIAL Note, below. The True Resistance Indicator (TRI) is a powerful tuning aid that helps the operator to quickly and precisely match the antenna impedance to the optimum tube load impedance. The auto-operate function (when enabled) maintains the amplifier in the OPERATE mode, thus avoiding unnecessary manual operations. Broadband input matching presents a very good load to the transceiver over the entire spectrum of 1.8-54 MHz. Your 2100 will enable you to change between three antennas virtually instantaneously and allow you to use your antennas over wider frequency ranges. All ACOM 2100 amplifier status indications are explained via detailed text displayed on the high brightness OLED display. LED indicators are also provided for Power, Operate Mode, Attenuation-on, Transmit and Selected Antenna output. ACOM 2100 Features and specifications: * Frequency Coverage: 1.8-54 MHz * Power Output: 1,500W PEP, 1,500W continuous carrier; for continuous carrier transmissions longer than 15 minutes the external auxiliary fan must be installed * Intermodulation Distortion: Better than 32dB below PEP rated output * Hum and noise: Better than 40dB below rated output * Harmonic Output Suppression: 1.8-29.7 MHz; 50dB below rated output, 50-54 MHz; 66dB below rated output * Input and Output Impedance: Nominal values: 50 Ohm unbalanced output; Input circuit: broadband, VSWR less than 1.3:1, 1.8-54 MHz (no tuning, no switching); Bypass path: VSWR less than 1.1:1, 1.8-54 MHz continuously * RF Gain: 13.5dB typically, frequency response less than 1dB (40-55 W drive power for 1,500 watts output) * Primary Power: 100-264V (100, 110,120, 200, 210, 220, 230 and 240V nominal taps), 50-60Hz, single phase, 3500VA consumption at rated output * Complies with CE safety and electromagnetic compatibility requirements as well as FCC-regulations * Size: 17.5 x 14.7 x 8.0 in. * Weight 64.6 lbs. * Operating environments: Temperature range 0 to 50 degrees C, Humidity up to 95 percent at 35 C * Altitude: up to 3,000m (10,000ft) above sea level without output deterioration Why not allow yourself to enjoy the finest amplifier? Order your own ACOM 2100 HF + 6 Meter Linear Amplifier from DX Engineering and give your signal a nice boost! Note: During and after your amplifier's warranty period, DX Engineering can direct you to the appropriate location for repairs for ACOM amplifiers. That facility will charge a repair fee for services outside the warranty period.

4.9 out of 5 stars ( 31 )

$5,687.98

Penta Labs RF Vacuum Tubes

Penta Laboratories was founded in 1951 and is a world-class manufacturer and distributor of a wide range of vacuum tubes for a variety of industries. Penta's commitment to excellence begins with design and follows each product all the way through distribution. Penta Labs matched vacuum tubes go through rigorous test procedures to enhance performance during their operation. Each Penta Labs vacuum tube is burned in for a minimum of 48 hours dissipating full power with filament, plate and screen voltages that are normally used in amplifier applications. All of this ensures that the various electrical parameters have stabilized and the matching of each vacuum tube will not drift during its lifetime. Penta Labs power tubes are matched within a 5% variation on all parameters. This is a process of eliminating tubes that test with bad values, rejecting those outside limits of design. Each passing vacuum tube is then tested on a fleet of WT-100A original RCA production testers for plate current, screen current and transconductance (gm). We also check for grid current and leakage between elements. When you receive single and matched vacuum tubes from Penta Labs, you can rest assured that you are receiving a product that has been thoroughly tested and will perform at levels unsurpassed in the industry. DX Engineering offers a selection of Penta Labs single and matched sets of RF vacuum tubes and ceramic vacuum tubes for your electronics project or repair. Order yours today!

4.88 out of 5 stars ( 89 )

$56.99

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$2,098.99

ACOM 1003 HF + 6 meter Linear Amplifiers

ACOM 1003 HF + 6 meter Linear Amplifiers are self-contained, full-featured units that cover all amateur bands from 1.8 MHz to 54 MHz. With less than 80 watts input, they deliver 1000 watts PEP output or 900 W continuous carrier using a single ceramic/metal power triode 3CX800A7. ACOM 1003 models have two new front panel relay switches, one to select from three antenna outputs and another to quickly engage and disengage an input attenuator for rapid tuning without transceiver adjustment. A multitude of advanced features in this compact and affordable amplifier validates its admirable design. ACOM 1003 Amplifiers are available from DX Engineering in three versions: •AOM-1003-240 Tested with a pre-installed NEMA 6-15P for 240 VAC at 8.5A (10A fuses) •AOM-1003-120 Tested with a pre-installed NEMA 5-15P for 120 VAC at 15A+ (20A fuses) •AOM-1003 Install your own plug, reset voltage taps internally, 10A fuses supplied The ACOM1003 HF+6M Linear Amplifier is amazingly easy to operate! •True Resistance Indicator (TRI) bar scale meter: Simplifies accurate adjustment of plate-load impedance controls. •Two-line OLED Display: Provides a peak power bar graph meter, 18 unique operational parameters and text status messages. •External Tuner Not Needed: For antenna SWR up to 3:1, even at 1000 W output. •Front-panel Input Attenuator: Instantly reduces input power when tuning, eliminating the need for transceiver power adjustments. •Silent HF Reed Relay: Enables Fast T/R switching for QSK CW. Additional features and protection: •Operator selectable class AB2 mode for best linearity in SSB mode or class B for reduced plate dissipation in continuous digital modes. •Operator selectable Full 100% or 50% power output with no efficiency deterioration. •Auto controlled air flow tube cooling. •Continuous monitoring of amplifier parameters and tube protection. •Able to monitor 18 operator-selectable amplifier parameters on the display. •Unique ACOM protection for the bands switch. •Factory tuned input lowpass filters for best linearity and input SWR less than 1.3 in each amateur radio band. -OLED comment display – Two-line OLED display with peak-reading forward-output power bar graph and 18 operator-selectable amplifier parameters on the display. -Three antenna outputs – Three antenna outputs are selectable by a push-button on the front panel. -Less noise in the shack – HF antenna reed relay for a virtually silent, QSK compatible CW operation. -Transceiver-independent – The amplifier operates without special signals from the transceiver - "Ground on TX" (PTT) and 50-80 W RF drive power are sufficient. -Single tube operation – Uses a single ceramic/metal power triode 3CX800A7 in cathode driven, grounded grid configuration. -Tube protection – Continuous monitoring of amplifier parameters and tube protection. -Output RF arc protection – Original ACOM HF arc protection at the output, or at the antenna. -Power supply – Single phase mains power, 90-132 / 180-264 VAC at 50-60 Hz, power consumption at rated output – up to 2000 VA @ 240 VAC. Internal taps for 8 nominal AC mains voltages: 100, 110, 120, 200, 210, 220, 230 & 240VAC, ±10% tolerance), 50-60 Hz, single phase. -Easy maintenance – Non-volatile memory with SIGNATURE records eight of the most recent Serious (Hard Fault) Protection events. -Documentation – The User's Manual is available as a PDF file only. The latest version is available under the Download tab (see above). ACOM creates and distributes its documentation in ENGLISH language only.

5.0 out of 5 stars ( 2 )

$4,899.99

OM Power OM-2000A+ HF Plus 6 Meter 1,500W+ Auto Tune Linear Amplifiers

OM Power OM-2000A+ HF Plus 6 Meter 1,500W Auto Tune Linear Amplifiers (OMR-OM-2000A) features one FU-728F Ceramic Tetrode tube capable of providing stable, full legal limit all-mode output power and frequency coverage of the Amateur bands ranging from 1.8 to 29.7MHz plus 50MHz. CW ops will enjoy QSK (full break-in) with the silent T/R vacuum relay. The Intuitive 4.3-Inch color Touch Screen and front panel indicators allow you to stay informed about the operational status of the amplifier and effortlessly gain access to advanced features and settings. Full band change or frequency reading compatibility is built in for modern transceivers and RF Sense band change supports legacy transceivers. The OM-2000A+ supports automatic antenna switching for up to 10 antennas. Remote Control operation is supported via LAN and available PC program download. The OM-2000A+ is considered one of the most compact and lightest 1500W+ HF automatic tuning amplifiers on the market.

4.5 out of 5 stars ( 4 )

$5,543.99

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$7,199.99

ACOM 1400S Solid State 160-6M Linear Amplifiers

Unleash the full potential of your station with the ACOM 1400S Solid State 160-6M Linear Amplifier, a next-generation linear amplifier designed for serious operators. Covering all amateur bands from 1.8 to 54 MHz, it delivers a commanding 1200 W output PEP, or continuous carrier, a wide voltage range of 200–264 VAC, or 600W with 90-132VAC input. Why Choose the ACOM 1400S? • Plug-and-Play Compatibility: Works with any transceiver—just a "ground on transmit" signal and under 50 W RF drive. • Effortless Operation: A 7-inch color touch-screen Remote Control Unit (RCU) puts intuitive menus and real-time status at your fingertips. • Smart Band Switching: Tracks frequency via CAT or auto-detects through its built-in counter. • Remote Access: Control your amplifier from anywhere with integrated Ethernet and Web interface. Engineered for Performance • Rugged 65 V LDMOS transistor for heavy-duty reliability. • Broadband input with SWR below 1.2 across the entire range. • Advanced protection circuits and detailed fault logging for peace of mind. •Compact design with switching-mode power supply, Power Factor Correction, and inrush current limiting for smooth operation—even on generators. Built for the modern Amateur Radio station, with perfect EMC compliance, seamless integration with sensitive gear, and superior filtering for a clean signal environment. SPECIAL NOTE: Due to power efficiency, the use of 240 VAC service is highly recommended. -AOM-1400S-240 is pre-wired and tested by DXE with a NEMA 6-15P USA plug for 240-volt operation and full power operation (1200W). - AOM-1400S-120 is pre-wired and tested by DXE with a NEMA 5-15P USA plug for 120-volt operation at half-power (600W). - AOM-1400S has NO PLUG (or a European plug) and is not tested by DXE; order this model to wire your own AC plug for either voltage.

Not Yet Reviewed

$6,074.99

RM ITALY MLA100 HF Amplifiers

RM ITALY MLA100 HF Amplifiers cover all Amateur bands, 160 through 6 meters, providing up to 100 watts output on HF and 80 watts on 6 meters with only 5 watts maximum RF input. They are the perfect choice for medium power operations with today's very capable, low power (QRP) radios, including many brands of portable and SDR transceivers. The MLA100 features PIN diodes for very fast receive-transmit-receive switching am seamless QSK CW fast break-in operation. Band selections are automatically detected and switched or may be set manually. Front panel LEDs display power output and SWR simultaneously on dual bar graphs. MLA100 amplifiers have built in protection from excessive input power, high temperature and high SWR. The MLA100 is a clean and capable standard solid state linear amplifier using two robust Mitsubishi RD1000HHF1 MOSFETs built into a massive, chassis-sized heatsink. The MLA100V is the same amplifier unit with the addition of an externally mounted fan. Both MLA100 and MLA100V HF Amplifiers require 13.8 Vdc at 20 A maximum, and feature a rear panel 20A ATC fuse and DC power quick connector. Also on the rear panel are Input and Output SO-239/UHF female RF connectors and a female RCA phono "PTT" for amplifier keying. Their chassis measure 190 x 182 x 78mm x (7.48 x 7.17 x 3.07 in.) and weigh 1.4kg (3.1 lbs.). *** Note: Amplifier Color may vary. PLEASE NOTE: This amplifier is intended to be used with a low power (QRP) transceiver that is capable of an RF output of approximately 5 watts maximum. DO NOT USE this amplifier with radios that are capable of 100 watts output. Even when output power is turned down, many 100 watt transceivers send out an instantaneous high power RF pulse that will blow out the Solid State final transistors of this amplifier. Damage to final transistors due to RF pulse and overdrive is NOT COVERED UNDER WARRANTY. It is the owner's responsibility to use this amplifier properly, with a low power radio that cannot accidently damage the amplifier. Cost of repair of amplifiers with blown finals will be charged to the customer or will be deducted from the refund of returned amplifiers with blown finals. Available exclusively in North America from DX Engineering, order your RM ITALY MLA100 HF Amplifier to bring new operational capability - and more fun - to your QRP transceiver.

4.53 out of 5 stars ( 15 )

$831.99

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$851.99

RM ITALY BLA350 Plus HF Linear Amplifiers

RM ITALY BLA350 Plus HF Linear Amplifiers are compact and fully automatic with up to 300 watts output at less than 12 watts input on all Amateur bands from 160 through 10 meters. These amplifiers include fast hardware protection circuits to protect the power transistors in the event of a high SWR condition on the antenna feedline. Two 50Vdc MACOM MRF150 RF Power FETs in Class AB push-pull configuration is automatically or manually switched to one of six low pass filters that provide over 50dB harmonic suppression. The built-in 800VA power supply functions on input house current at either 110 to 120 Vac or 207 to 244 Vac. Therefore two versions of the amplifier are available, RMY-BLA350P-120 or RMY-BLA350P-240, which include the appropriate fuses and AC power cord. The BLA350 Plus may be used on all narrow band modes of transmission including SSB, CW, AM, FM, RTTY, FT8 and so on, using reduced power (25% of PEP) for AM and digital modes. Internally a dual microprocessor controls a variable speed cooling system. On the front panel is a large, attractively illuminated analog output power meter. Plus, the two-line 16 character LCD display shows amplifier operating parameters including frequency, filter selection and PA temperature. This display also enhances quick navigation of the amplifier's menu system. Appropriate operations for this amplifier are on HF antenna systems with SWR below 1.5:1. Additional specifications and documentation appear on the product detail pages. PLEASE NOTE: This amplifier is intended to be used with a low power (QRP) transceiver that is capable of an RF output of approximately 10 watts maximum. DO NOT USE this amplifier with radios that are capable of 100 watts output. Even when output power is turned down, many 100 watt transceivers send out an instantaneous high power RF pulse that will blow out the Solid State final transistors of this amplifier. Damage to final transistors due to RF pulse and overdrive is NOT COVERED UNDER WARRANTY. It is the owner's responsibility to use this amplifier properly, with a low power radio that cannot accidently damage the amplifier. Cost of repair of amplifiers with blown finals will be charged to the customer or will be deducted from the refund of returned amplifiers with blown finals. Ideal for QRP and low power transceivers and weighing less than 30 lbs., RM ITALY BLA350 Plus HF Linear Amplifiers are easy to use and will provide many years of excellent performance for your Amateur station.

4.53 out of 5 stars ( 36 )

$1,215.99

ACOM 1500 HF + 6 Meter Linear Amplifiers

ACOM 1500 HF + 6 Meter Linear Amplifiers are user-friendly and look after themselves. They are designed to safely withstand up to 300 watts of reflected power and up to 100 milliseconds duration of drive spikes. These amplifiers also continue to function with "soft" AC mains and will deliver more than half power at only 85 percent of nominal mains voltage. They can withstand voltage drops for up to 10 milliseconds and can tolerate 15 percent mains voltage spikes. This level of tolerance is especially important on Field Day, during DXpeditions, and at portable operating events where emergency power is relied upon. Please see the SPECIAL Note, below. The True Resistance Indicator (TRI) is a powerful tuning aid that helps the operator to quickly and precisely match the antenna impedance to the optimum tube load impedance. The auto-operate function (when enabled) maintains the amplifier in the OPERATE mode, thus avoiding unnecessary manual operations. Your ACOM amplifier will enable you to change antennas virtually instantaneously and allow you to use your antennas over wider frequency ranges. Broadband input matching presents a very good load to the transceiver over the entire spectrum of 1.8-54 MHz. These amplifiers produce virtually-silent QSK. The input bypassing and vacuum antenna relays are virtually silent even in the CW QSK mode; thanks to specially designed mounting hardware. ACOM 1500 amplifiers utilize a single 4CX1000A ceramic and metal radial-beam tetrode vacuum tube with plate dissipation of 1,000 watts. Tube protection includes permanent monitoring and automatic protection of plate and grid voltages and currents, as well as the exhaust air temperature. These pieces of data are essential to indicate 4CX1000A operating conditions. All ACOM 1500 amplifier status indications are explained via detailed text displayed on the dot matrix, high brightness, vacuum fluorescent display (VFD). LED indicators are provided for Power, Operate mode, Attenuation-on, Transmit, Selected antenna output, and ON/OFF conditions. * Frequency Coverage: 1.8-54 MHz * Power Output: 1,500W PEP, 1,200W continuous carrier; for continuous carrier transmissions longer than 15 minutes the external auxiliary fan must be installed * Intermodulation Distortion: Better than 35dB below PEP rated output * Hum and noise: Better than 40dB below rated output * Harmonic Output Suppression: 1.8-21.5 MHz; 50dB below rated output, 24-54 MHz; 66dB below rated output * Input and Output Impedance: Nominal values: 50 Ohm unbalanced output; Input circuit: broadband, VSWR less than 1.3:1, 1.8-54 MHz (no tuning, no switching); Bypass path: VSWR less than 1.1:1, 1.8-54 MHz continuously * RF Gain: 13dB typically, frequency response less than 1dB (60-85 W drive power for rated output) * Primary Power: 100-264V (100, 110,120, 200, 210, 220, 230 and 240V nominal taps), 50-60Hz, single phase, 3500VA consumption at rated output * SPECIAL Note: Order part number AOM-1500 to wire the AC plug yourself; order part number AOM-1000-240 for pre-wired 240 volt operation * Complies with CE safety and electromagnetic compatibility requirements as well as FCC-regulations * Size: 16.6 x 14 x 7.7 in. * Weight 58.4 lbs. * Operating environments: Temperature range 0 to 50 degrees C, Humidity up to 95 percent at 35 C * Altitude: up to 3,000m (10,000ft) above sea level without output deterioration Note: For additional information, please look at the files under the "Documentation" tab. Why not allow yourself to enjoy the finest amplifier? Order one of your own ACOM 1500 HF + 6 Meter Legal Limit Linear Amplifiers from DX Engineering and give your signal a nice boost! Note: During and after your amplifier's warranty period, DX Engineering can direct you to the appropriate location for repairs for ACOM amplifiers. That facility will charge a repair fee for services outside the warranty period.

5.0 out of 5 stars ( 14 )

$5,122.99

ACOM 2000A Automatic HF Linear Amplifiers

ACOM 2000A Automatic HF Linear Amplifiers are the world's most advanced amplifiers designed specifically for hams. These amplifiers were the first to include fully-automatic tuning and sophisticated digital-control capabilities. ACOM's revolutionary 2000A amplifiers deliver maximum legal power in all modes and operate on all amateur HF bands 160 to 10 meters. Be sure to read the SPECIAL Note, below. These amplifiers follow your transceiver's band and frequency automatically in far less than a second. No special cables are required: Just a "dit" on CW or "AHH" on SSB is enough for instant band and band segment changes. ACOM 2000A amps break every amateur band into multiple frequency segments. The user can store up to ten (10) sets of tuning adjustments for every frequency segment - allowing individual settings for multiple antennas on each band. By completely eliminating time-consuming tune-up procedures, ACOM 2000A linear amplifiers give contesters a real edge. At the core of the ACOM 2000A is a classic HF amplifier design that employs two matched 4CX800A high-performance ceramic-metal tetrodes for maximum efficiency. ACOM uses these rigorously tested tubes with today's most advanced digital control technology to create an amplifier with outstanding performance, features and reliability. Measured third and fifth order IMD are typically 40dB and 45dB down, respectively. Typical harmonic emissions are as low as -55dBc (second) and below -70dBc (for third and above). Thus, probability of QRM, BCI or TVI is dramatically minimized. ACOM's 2000A remote diagnostic features and modular design ease fault isolation and repair. The protection system makes damaging one of these amplifiers difficult. Information on the 12 most recent protection trips is stored in an INFO BOX for remote diagnostics via phone line, PC, and Internet. Full break-in (QSK) is based on a built-in vacuum relay. Transmit/receive switching sequence is secured by a dedicated microprocessor. * Frequency Coverage: All Amateur Bands 1.8-29.7 MHz * Power Output: 1,500W PEP, 1,500W continuous carrier (the external auxiliary fan must be installed for operations of continuous carrier transmissions longer than 15 minutes * Hum and noise: Better than 35dB below rated output * Harmonics Output Suppression: Better than 50dB below rated output * Input and Output Impedance: Nominal values: 50 Ohm unbalanced output; Input circuit: broadband, VSWR less than 1.3:1, 1.8-29.7 MHz Amateur Bands (no tuning, no switching); Relay Bypass Throughput: VSWR less than 1.1:1, 1.8-29.7 MHz Amateur Bands * Automatic Tuning: Load Impedance Matching - less than 3 seconds; Band Change - less than one second; Segment Change - less than 0.2 seconds * RF Gain: 14.5dB, frequency response less than 0.5dB (50 to 60W drive power for rated output) * ALC: grid-current derived, -11V max, rear panel adjustable * Primary Power: 180-264V (200, 220 and 240V nominal taps, 10 percent tolerance), 50-60Hz, single phase, 3,500VA consumption at rated output * SPECIAL Note: Order part number AOM-2000A to wire the AC plug yourself; order part number AOM-2000A-240 for pre-wired 240 volt operation * Complies CE safety and electromagnetic compatibility requirements, as well as FCC regulations * Size: W 17.3 x 19.7 x H 7.1 in. Weight: 36 kg * Operating environments: temperature range: 0 to 50 degrees C; Humidity: up to 95 percent at 35 degrees Celsius * Altitude: up to 3,000m above sea level without output degradation Note: For additional information, please look at the files under the "Documentation" tab. Get the most advanced legal-limit HF amplifier for your shack. Order ACOM 2000A Automatic HF Linear Amplifiers from DX Engineering… today! Note: During and after your amplifier's warranty period, DX Engineering can direct you to the appropriate location for repairs for ACOM amplifiers. That facility will charge a repair fee for services outside the warranty period.

5.0 out of 5 stars ( 9 )

$6,374.99

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$8,935.98

QRO.cz 4-Way Active PTT Splitters

QRO.cz 4-Way Active PTT Splitters are compact switching devices designed to distribute a single PTT (Push-To-Talk) signal to up to four independent devices—such as amplifiers, transceivers, or relays—without delay or signal degradation. It's the ideal solution for complex station setups where multiple devices need to be triggered simultaneously from one PTT source. Built with optocoupler isolation, this splitter protects your transceiver's PTT output from potential damage caused by connected accessories. Whether you're integrating power amplifiers, interlock systems, or RX devices, these 4-way PTT splitters ensure safe and reliable operation.

5.0 out of 5 stars ( 1 )

$76.99

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$101.99

ACOM 500S Solid State 160 – 4 Meter Linear Amplifiers

ACOM 500S Solid State 160 – 4 Meter Linear Amplifiers are state-of-the art RF power amplifiers that cover all Amateur Radio bands from 1.8 through 70.5 MHz* with a power output of 500 Watts (PEP or digital). Its compact and lightweight construction is perfect for expeditions and field operations. The built-in switching-mode power supply (SMPS) operates with an extended mains voltage range of 100-240 VAC, with no internal switch over. The consumed current is purely sinusoidal, Power Factor Corrected (PFC) and in-rush limited, therefore operating the 500S with unstable mains and generators is easy and trouble-free. * Operation on the 4 meter band, 70-70.5 MHz is only legal in certain countries in IARU Region 1, many in Europe, plus Greenland. Operation is not authorized on this band in most of IARU Region 2 including North, Central and South America. This amplifier may be sold in any part of the world. Legal operation is the responsibility of the user. SPECIAL NOTE: Due to power efficiency, the use of 240 VAC service is highly recommended. -AOM-500S-240 is pre-wired and tested by DXE with a NEMA 6-15P USA plug for 240-volt operation. - AOM-500S-120 is pre-wired and tested by DXE with a NEMA 5-15P USA plug for 120-volt operation. - AOM-500S has NO PLUG and is not tested by DXE; order this model to wire your own AC plug for either voltage. The overall operation of ACOM 500S is extremely user friendly and the simplified menus on the multi-functional, high resolution 5-inch color display are intuitive and easy to follow when changing frequency and bands. Amplifier control can be achieved by using either the 6 buttons conveniently located on the front panel or remotely over the internet with the optional ACOM eBox Remote Control Device (this functionality is currently in development). Complete automatic control of a transceiver with CAT capability* allows the amplifier to track the operating frequency and will change bands accordingly. When a CAT connection to the transceiver is not present, the amplifier will monitor the input signal frequency through the built-in frequency counter and will automatically switch bands. The ACOM 500S is transceiver independent and fully compatible with all transceiver models available and requires less than 25W of RF power and a "ground on transmit" signal for operation. The 500S utilizes a rugged LDMOS transistor and a broadband input circuit presents an SWR below 1.5 to the transceiver without re-tuning throughout the entire frequency range from 1.8 to 70.5 MHz. Built-in intelligent protection circuits continually work in the background to keep your equipment safe. Detailed data about each of the last hard-fault protection trip is stored in the amplifiers non-volatile memory for easy maintenance. Built-in radio frequency filters exceed EMC requirements by providing electromagnetic compatibility (EMC) with highly sensitive devices typically found in the shack such as receivers, computers and other amplifiers. NOTE: Compatible ACOM 04AT or 06AT Antenna Tuners are powered and controlled only by an ACOM Solid State Amplifier. Automatic operation of these tuners requires exact frequency information (not band data) from a CAT or COM (RS-232) or CI-V capable transceiver via a custom built Transceiver to Amplifier Interface Cable. The required frequency data interface cable may be user built (CAT/AUX connection instructions from ACOM) or purchased as an optional accessory from DX Engineering for applicable transceivers. ACOM 500S Solid State 160 – 4 Meter Amplifiers are among the finest modern linear amplifiers available anywhere in the world. These outstanding amplifiers are available from DX Engineering!

5.0 out of 5 stars ( 10 )

$3,854.99

RM ITALY LA 250 Series VHF Linear Amplifiers

RM ITALY LA 250 Series VHF linear amplifiers are wideband, compact amplifiers covering 140 to 150 MHz. Available in two models, the only difference is that the LA 250 V includes a pair of cooling fans while the LA 250 does not. These high-power 2-meter amplifiers will provide up to 200 watts FM output. *** Note: Amplifier Color may vary. NOT compatible with DMR and P25 modes LA 250 Series details: * Frequency range: 140 to 150 MHz continuous * Input drive: 1 to 15 watt (maximum). Typically 10 to 12 watts in for 200 watts out * FM output power: 200-watt maximum * Modulation types: SSB, CW, AM, FM, data (switch selectable AM/FM or SSB) * PTT input or RF sense operation * LCD amplifier status screen: -- Input power -- Output power -- SWR -- Heatsink temperature * Internal low-pass filter * Self protection: Reverse polarity, high temperature, load VSWR, and excessive input power * Input VSWR: 1.1 to 1.5:1 * Output VSWR limit: 2.8:1 * SWR power foldback * Optionally cooled version with multispeed fans (LA 250 V) * Supply voltage: 12 to 14Vdc * Maximum DC current: 30A * Internal power fuses: three 10-amp (5x20mm Fast Blow) * Maximum bypass power (amplifier off): 50 watt * Power transistors: 4x Mitsubishi RD70HVF1 Important: Depending upon SWR and input voltage, 200 watts maximum output is typical with 10 to 12 watts input; 15 watts is the maximum input permissible for a low distortion signal. Protection circuits will take the amplifier offline (fault) at about 18 to 20 watts. Running amplifier output at 170 to 180 watts produces a more intelligible signal at virtually the same received level. Note: For additional information, please look at the files under the "Documentation" tab. These RM ITALY LA 250 Series VHF linear amplifiers are perfect for mobile use! You may also want to use them with a 5 watt portable radio or low-power base radio. Order from DX Engineering to give your 2 meter operations a boost!

4.71 out of 5 stars ( 14 )

$679.99

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$729.99

OM Power OM-4001HF HF Manual Tune 1,500W+ Linear Amplifiers

OM Power OM-4001HF HF Manual Tune 1,500W+ Linear Amplifiers features two FU-728F Ceramic Tetrode tubes capable of providing stable, full legal limit all mode output power and frequency coverage of the Amateur bands ranging from 1.8 to 29.7MHz. CW enthusiasts will enjoy QSK – full break-in operation. The Intuitive 4.3-Inch color Touch Screen and front panel indicators allow you to stay informed about the operational status of the amplifier and effortlessly gain access to advanced features and settings. The OM-4001HF is one of the most compact and capable 1,500W+ manual tuning HF linear amplifiers available.

4.0 out of 5 stars ( 1 )

$7,219.99

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$7,599.99

RM ITALY LA435 Wideband UHF Amplifiers

RM ITALY LA435 Wideband UHF Amplifiers are very compact linear units that cover from 405 to 480 MHz. They are ideally suited to low power handheld transceivers, requiring input drive from 1 watt to a maximum of 5 watts, delivering a nominal 60 watts of full output power, 70 watts PEP maximum. The LA435 amplifier features automatic "RF Sense" switching between RX and TX and it bypasses when it is switched off for low power operation. The SSB mode adds a small transmit-receive delay for smoother voice operation. The rear panel European-style removable DC power connector cable facilitates easy installation with a user supplied DC power cable fused for 15A at 13.8 VDC. The DC power cable to the mobile battery or power supply should be as short as possible. Use of a minimal length of low-loss 50 ohm coaxial cable to the appropriate UHF antenna is recommended. The LA-435 features Type-N input and output RF connectors to minimize losses. Actual output power depends on coaxial cable and antenna SWR as well as frequency of use. A graph in the manual illustrates the relationship between input and output power at 435 MHz. NOT compatible with DMR and P25 modes.

Not Yet Reviewed

$429.99

4O3A 1A2R Radio Switches

The 4O3A 1A2R Radio Switch is engineered to allow a single amplifier to be safely shared between two radios, making it an ideal solution for SO2R (Single Operator Two Radios) contesting or multi-radio station setups. It uses a "first PTT wins" logic, ensuring that only one radio can access the amplifier at a time, preventing signal conflicts and potential equipment damage. Each radio's PTT control can be independently disabled via a dedicated switch, offering added flexibility during operation. Once installed, the switch eliminates the need for manual rewiring—your amplifier remains permanently connected and ready. In the event of a failure during SO2R operation, the amplifier can be quickly reassigned from Radio B to Radio A, providing a reliable backup path.

Not Yet Reviewed

$515.99

OM Power OM-3501A HF Automatic Tune Linear Amplifiers

OM Power OM-3501A HF Automatic Tune Linear Amplifiers (OMR-OM-3501A) features one Ceramic Tetrode GU78B tube capable of providing stable, full legal limit output power plus on any mode in the Amateur bands from 1.8 to 29.7MHz. CW ops will enjoy QSK (full break-in) with a silent T/R vacuum relay. The intuitive 4.3-inch color Touch Screen and front panel indicators allow you to stay informed about the operational status of the amplifier and effortlessly gain access to advanced features and settings. The OM Power OM-3501A is a self-contained 1500W++ HF automatic tune amplifier with a high performance double-transformer power supply. Also built-in is direct LAN Internet Remote Control capability (details on part web page). The OM Power OM-3501A HF Automatic Tune Amplifier is fully compatible with direct serial port CAT-COM or CI-V Interfacing to vitually any modern transceiver for automated band changing, with CAT-COM RS-232 pass-through to a station computer. It is also features an RF sensitive counter for automatic band and frequency switching, for radios that do not have CAT. This provides automatic switching between bands, automatic tuning with the band according to segments as well as automatic switching of a BAND DATA output compatible with YAESU radios (BCD code) for multi-Band Pass Filters, and automatic switching of antenna switches - maximum number of antennas is 10, controlled by BCD output code. Feature Highlights: High level of protection Full QSK with silent T/R vacuum relay Many operational parameters on display Three programmable working modes of the axial blower Memory for faults and warning, easy maintenance Easy transport with the removable HV transformers More information is available on the web detail page. Experience the perfect blend of power, protection, and performance. Order the amazing OM Power OM-3501A HF Automatic Tune Linear Amplifier from DX Engineering.

Not Yet Reviewed

$8,829.99

OM Power OM-4001HFMARS HF Plus MARS Manual Tune 1,500W+ Linear Amplifiers

OM Power OM-4001HFMARS HF Plus MARS Manual Tune 1,500W+ Linear Amplifiers features two FU-728F Ceramic Tetrode tubes capable of providing stable, full legal limit all mode output power and frequency coverage of the Amateur bands and most MARS frequencies from 1.8 to 29.7MHz. CW enthusiasts will enjoy QSK – full break-in operation. The Intuitive 4.3-Inch color Touch Screen and front panel indicators allow you to stay informed about the operational status of the amplifier and effortlessly gain access to advanced features and settings. The OM-4001HFMARS is one of the most compact, rugged and capable 1,500W+ manual tuning linear amplifiers available.

Not Yet Reviewed

$8,469.99