The HLA 150V is a 12V linear amplifier with a maximum output power of 150W, designed for use on all HF bands from 1.8 to 30 MHz, with a drive power of 1–10W. The HLA 150V features six Low Pass Filters, which are automatically switched by a microprocessor or can be manually selected from the front panel. It also includes an LED power meter, a 3dB input attenuator, and RTX control via either VOX or PTT