The RM MLA300 is a 13.6 VDC HF broadband linear amplifier suitable for use in the range from 1.8 to 30 MHz with a maximum output of 300W, (Av. power), requiring a maxi-mum input drive of 15W, it has been designed to be used with transceivers with 10W outputs but can be used equally well with any transceiver capable of producing 1 to 15W output.

It uses 4 RF power transistors in two parallel push pull circuits biased in class AB. There are 6 Low Pass Filters with cut-off frequencies of 3, 4, 5, 8, 15, 22 and 31 MHz that greatly reduce unwanted harmonic output to acceptable levels that may be selected manually or automatically.

It features a microprocessor that controls all of the functions of the amplifier and its protection circuits. Protection is provided for excessive input power, excessive output power, excessive load VSWR, out of band operation and exces-sive temperature. The amplifier may be used either in a mobile / portable or fixed station installation.

Technical Specifications:

• Input power (Watts): 1-15 AM-FM / 1-15 SSB-CW
• Max output power (Watts): 300 AM-FM
• Impedance: 50 Ohm
• Max input SWR: 1.1 - 1.5
• Fuse: 1x 40 A
• Input connector: UHF (PL) female
• Output connector: UHF (PL) female
• Length: 190 mm
• Height: 80 mm
• Width: 450 mm
• Weight: 3300 gram