RM Italy HLA-300V Black HF Linear Amplifier 1.8–30 MHz, 280W, 6-Band LPF, 12V

The RM Italy HLA-300V Black is a 280W HF linear amplifier covering all amateur bands from 1.8 to 30 MHz (160m through 10m), designed for operators wanting a significant power boost from a compact, mobile-capable 12V platform. With a drive requirement of just 1–15W, it's compatible with virtually any HF transceiver operating at QRP to mid-power levels.

Six low-pass filters are switched automatically by an onboard microprocessor based on operating frequency, or can be set manually via the front panel — eliminating the need for manual filter changes between bands. Three 80mm cooling fans mounted to the heatsink keep temperatures in check during extended operation. Additional features include an LED power meter, 3dB input attenuator, and VOX or PTT input for RTX control. Made in Italy.

Key Features

• Frequency: 1.8–30 MHz (160m–10m, all HF amateur bands)
• Output power: 280W max
• Input power: 1–15W (all modes)
• 6 low-pass filters — auto-switched by microprocessor or manual
• LED power meter
• 3dB input attenuator
• VOX or PTT RTX control
• 3 × 80mm cooling fans
• Power supply: 13V DC ±1V, 40A
• Fuse: 4 × 10A fast blow (5×20mm)
• Dimensions: 420 × 190 × 83mm
• Made in Italy

Technical Specifications

• Frequency: 1.8–30 MHz
• Output power: 280W max
• Input power: 1–15W max
• Power supply: 13V DC ±1V, 40A
• Input VSWR: 1.1–1.5:1
• Fuse: 4 × 10A fast (5×20mm)
• Dimensions: 420 × 190 × 83mm