4O3A Power Genius XL HF/6M SO2R Amplifiers are solid-state amplifiers capable of delivering 1500W+ output across the 160-6M amateur bands, engineered for high-performance amateur radio use. The PGXL uses dual NXP MRF1K50H LDMOS transistors, each rated for 1.5 kW, providing high headroom, low IMD, and clean signal output. It is the only amplifier with true SO2R capability, offering 70 dB isolation between two inputs. The integrated MEffA™ algorithm dynamically adjusts DC voltage for optimal efficiency. Additional features include fast SWR protection, advanced thermal management, and seamless integration with FlexRadio systems via SmartSDR. They also support third-party radios through Ethernet, RS232, CI-V, and BCD interfaces.

NOTE - These Amplifiers are shipped without a power connector on the end of the power cable. Customers are urged to work with their electrician to finalize AC power delivery.

Key Features

- True SO2R Operation: Dual inputs with 70 dB isolation allow one amplifier to serve two radios independently, reducing station complexity and cost.

- MEffA™ Technology: Proprietary algorithm optimizes amplifier efficiency in real time by matching DC voltage to the RF signal envelope.

- Smart Integration & Remote Control: Seamlessly integrates with FlexRadio systems and supports remote operation via SmartSDR, Windows, and Android apps.

O3A PGXL-SO2R Additional Feature and Specifications:

• Frequency Range: 1.8 MHz to 54 MHz (HF + 6m)

• Power Output: 1500W (legal limit) 2000W capable

• Exciter Drive Level: Up to 70W for 1500W on 160-10M, 100W on 6M

• Amplifier Type: Solid-state,

• Drive Transistors: Dual LDMOS NXP MRF1K50H

• SO2R Support: 70dB nominal isolation between dual exciter inputs

• CAT, Band decoder, LAN interface: Enable operation with other exciters

• Antenna Impedance: 50-Ohm Unbalanced

• Exciter Inputs: (2) UHF female SO-239

• Antenna Outputs: (2) UHF female SO-239

• Efficiency System: MEffA™ (Maximum Efficiency Algorithm)

• Duplexed Filters: Maximize harmonic suppression and efficiency

• Cooling: Thermostatically controlled Smart Fans with high efficiency heatsink

• Automatic Power Control (APC): Ultra-fast SWR protection (<1 µs), over-temp, over-voltage, over-current

• Control Interfaces: Ethernet (LAN), RS232, CI-V, BCD, frequency counter

• Remote Operation: SmartSDR for Windows, Maestro, Android app

• Display: Large touchscreen for local control and future feature upgrades

• Integration: Full compatibility with FLEX-6000/8000 series and Tuner Genius XL

• Form Factor: 3U rack-mountable chassis

• Dimensions: 6.0 x 14.1 x 20.0in. (15.25 x 35.7 x 50.8 cm)

• Weight: 37.48lbs. (17kg)

• Operating Temp: -25C to +40C

Electrical

• Input Voltage: 90 – 250VAC, 50/60 Hz*

• Power Supply: Internal Modular/ Switching

• Max A/C Current: 15A @ 220VAC or 120 VAC.

*220 VAC supply and 20A minimum required for full power. Maximum of ~750W when using the 180 VAC or less.