LPA-9500 500 W Power amplifier

he Sunair LPA-9500 and LPA-9600 are proven solutions in communications applications where rugged and reliable high power amplifiers are required.

The amplifiers combine solid-state RF power amplification and control technology to produce reliable HF power at continuous duty.

The LPAs interface directly with the 9000D series of radios and transmitters, and operate over a frequency range of 1.5 MHz to 30 MHz, delivering rated output for a load VSWR up to 2:1 over the
full-temperature operating range, with graceful degradation for load VSWR up to 3:1.

The amplifiers are protected from damage due to load VSWR above 3:1 and short or open circuits.
The Sunair LPA-9500 and LPA-9600 use two and four amplifier power supply modules, respectively, capable of producing over 300W each, which allow the units to deliver conservative averages of 500W and 1kW.

The approach of combining power supplies and amplifiers in modular form produces considerable redundancy and protection again failures.

Should there be a failure in one of the LPA-9600 RF/PS modules, the unit will automatically switch to 500W operation.

The LPA-9500 provides selectable power of 500W or 250W, while the LPA-9600 provides selectable power of 1kW or 500W; and both units allow bypass operation.
Advanced built-in-test (BITE) capability, along with status indicators of power, individual PA voltages and currents, are all microprocessor-controlled.

In the event of malfunction, the amplifiers automatically select the next lowest safe operating level, activate a warning light, and display the cause on the front panel.

The amplifiers’ intuitive modular design allows for ease of maintenance and upgrade throughout the equipment life cycle at minimal expense.

Thousands are in daily service as integral components of critical strategic communications solutions worldwide.