About 5 years ago, M2 Antenna Systems introduced a high power solid state amplifier for 6 meters (model 6M-1000) capable of a full kilowatt of output. It was lightweight and small, making it usable both at home and for portable operations. Later they came out with a higher power 2 meter solid state amplifier called the 2M-1K2. I had a chance to review that amplifier and came away with a favorable opinion.4 Now there is a 6 meter version that is similar to the 2 meter version in look and capabilities the 6M-1K2. It is capable of delivering up to 1250 W of output, uses a 50 V dc supply that can be purchased integrated with the amplifier or added on separately, and like its predecessor is relatively lightweight and small.
Overview
The M2 6M-1K2 is a compact amplifier, measuring just 6 × 7.125 × 13.4 inches (height, width, depth) when set up without the optional internal power supply. When configured this way, it weighs 13 pounds. When the optional 2400 W switching power supply is integrated, the package grows to 9 inches tall and weighs 20.5 pounds. This makes it easy to use for DXpeditions or portable operation. We opted for the amplifier/power supply package for this review. In my station, it takes up about the same room as a desktop transceiver.
The amplifier uses a single Freescale LDMOSFET, an MRFE6VP61K25H, to generate power. The device can be driven to full output with about 5 W. Because most of us have transceivers that run significantly more power, M2 has set the amplifier to be driven with 50 – 100 W of input by using a built-in attenuator to achieve the correct drive level.
To run the optional internal power supply, a 240 V connection with a 15 A maximum is required. If you want to use a different supply, it will need to provide 48 – 50 V dc at about 40 A.
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Source´s : ARRL and M2 Antennas
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