RM KL300P 20–30 MHz (300W) Linear Amplifier (with PRE-AMP)


The RM KL300P 20–30 MHz (300W) Linear Amplifier with PRE-AMP is a robust and versatile addition to any amateur radio enthusiast’s setup. Designed with a focus on performance and reliability, this amplifier offers a power output of up to 300 watts, making it suitable for boosting signals on the 10-meter band and beyond.


One of the standout features of the RM KL300P is its built-in pre-amplifier, which enhances weak signals before amplification, ensuring clearer and stronger transmissions. This pre-amp capability makes it particularly well-suited for challenging operating conditions or when trying to reach distant stations.

However, it’s crucial to adhere to the manufacturer’s guidelines regarding input power to prevent damage and maintain warranty coverage. Exceeding the recommended input power can lead to costly repairs, as the manufacturer, RM Italy, does not cover amplifiers that have been overdriven under warranty. Therefore, users are encouraged to exercise caution and reach out for further guidance if unsure about operating parameters.

Overall, the RM KL300P 20–30 MHz Linear Amplifier with PRE-AMP strikes a balance between power, performance, and reliability, making it an excellent choice for enhancing your radio communications experience on the 10-meter band and beyond.


Frequency 20-30 MHz
Power Supply 12-14V
Input Amps 14-20A
Input Power 1-5W
Output Power 300W
Fuse 2 x 12A
Output Power Level 2
Size 109 x 225 x 35 mm
Weight 605 g
Antenna Pre-Amp 26 dB


Please Note: Do not exceed Input Power – the manufacturer’s RM Italy do not repair any amplifiers that have been over-driven by mistake under warranty and charges are very expensive.

Additional information

Weight 1.9 kg