RM Italy KL 506 230W 10m Linear Amplifier with 26dB RX Preamp

The RM Italy KL 506 is a high-power 13.8V linear amplifier designed primarily for the 10m amateur band. It accepts 1-10W RF drive and delivers up to 230W maximum RF output, with support for common narrowband modes including SSB, CW, AM and FM.

The KL 506 includes a 26dB receive preamplifier with electronic switching, a three-position RF output selector, an LED output-power display and a remote-control connector. RM Italy also specifies useful gain across 1.8-30MHz, but operation outside the 10m band requires a suitable external low-pass filter because the amplifier does not include internal low-pass filtering for those bands.

Features

• Designed primarily for 10m amateur-radio operation
• Up to 230W maximum RF output
• 1-10W RF drive requirement
• SSB, CW, AM and FM operation
• 26dB receive preamplifier with electronic switching
• Three-position RF output power selector
• LED output-power display
• Remote-control connector
• PTT input connection
• Input power attenuator
• Electronic transmit/receive switching
• SO-239 RF input and antenna output connections

Technical Specifications

• Manufacturer: RM Italy
• Model: KL 506
• Product Type: HF / 10m linear amplifier
• Primary Operating Band: 10m amateur band
• Extended HF Operation: 1.8-30MHz with a suitable external low-pass filter
• Modes: SSB / CW / AM / FM and other narrowband modes
• Power Supply: 13.8V DC ±1V
• Recommended Power Supply Rating: 50A
• Maximum Current Draw: 35A
• RF Input Power: 1-10W maximum
• RF Output Power: 230W maximum
• RX Preamplifier Gain: 26dB
• Maximum Bypass Power: 50W
• Input VSWR: 1.1-1.5:1
• Maximum Output VSWR: 2.5:1
• Internal Fuses: 3 x 12A fast-blow, 5 x 20mm
• RF Connectors: SO-239 input and output
• Dimensions: 300 x 190 x 67mm
• Weight: Approx. 2.05kg

Important Information

The KL 506 is intended for lawful amateur-radio use. For operation outside the 10m band, RM Italy requires a suitable external low-pass filter to suppress harmonic output. The antenna system, cabling and power supply must be rated appropriately for the amplifier's output power and current requirements. Users are responsible for ensuring that operation complies with applicable licence conditions and radio regulations.