XPost: rec.radio.amateur.dx, rec.radio.info

The DXZone.com Amateur Radio Internet Guide

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Top Amateur Radio Websites - Issue 2127

Posted:
https://www.dxzone.com/top-amateur-radio-websites-issue-2127

Homebrewing a 6 Meter Yagi, Online Toroid Multi Calculator, RF Impedance Matching Calculator, IAT Interactive Antenna Table , Basic Microwave
Antennas, FT-817 CAT interface, 17 meter QRP Transmitter,

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600W LDMOS Power Amplifier

Posted:
https://www.dxzone.com/dx34466/600w-ldmos-power-amplifier.html

Technical Reference/Amplifiers/HF Amplifiers
A comeplete home made 600W LDMOS RF power amplifier. Settings can be made
on a 7-inch touch screen, and on this screen you can see a lot of useful information during operation, such as output power, temperature, SWR, and
so on. The power amplifier includes 2 MRF300 LDMOS FETs and several
built-in sensors. The amplifier also contains several types of protection functions like too high current, too high swr, too high temperature, etc.

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