RM Italy LA 250 140-150MHz 200W VHF Linear Amplifier

The RM Italy LA 250 is a high-power 13V DC linear amplifier designed for the 140-150MHz 2m amateur VHF band. It delivers up to 200W RF output and supports narrowband operating modes including SSB, CW, AM, FM and data.

An illuminated LCD display shows the amplifier's operating parameters, while built-in protection helps guard against excessive antenna VSWR, excessive RF input power, over-temperature conditions and reverse polarity.

Features

• 140-150MHz VHF / 2m amateur-band operation
• 200W RF output at 1dB gain compression
• 1-20W maximum RF input drive
• SSB, CW, AM, FM and narrowband data operation
• Illuminated LCD operating display
• High antenna VSWR protection
• Excessive input-power protection
• Over-temperature protection
• Reverse-polarity protection
• 50W maximum bypass power with amplifier switched off

Technical Specifications

• Manufacturer: RM Italy
• Model: LA 250
• Product Type: VHF linear amplifier
• Frequency Range: 140-150MHz
• Modes: SSB / CW / AM / FM / narrowband data
• Power Supply: 13V DC ±1V, 40A
• RF Input Power: 1-20W maximum
• RF Output Power: 200W at 1dB gain compression
• Maximum Bypass Power: 50W
• Input VSWR: 1.1-1.5:1
• Maximum Output VSWR: 2.5:1
• Internal Fuses: 3 x 10A fast-blow, 5 x 20mm
• RF Transistors: 4 x Mitsubishi RD70HVF1
• Dimensions: 420 x 240 x 67mm
• Weight: Approx. 4.09kg

Important Information

This amplifier is intended for lawful amateur-radio use within the operator's permitted frequencies and power limits. The connected power supply, coaxial cable and antenna system must be suitable for the amplifier's current draw and RF output.