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December 6th 20, 12:36 AM
posted to rec.radio.amateur.moderated,aus.radio.amateur.misc,rec.radio.amateur.dx,rec.radio.amateur.equipment
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[VK2TPM] uSDX QRP transceiver built
marxy's musing on technology /////////////////////////////////////////// uSDX QRP transceiver built Posted: 05 Dec 2020 04:20 PM PST http://blog.marxy.org/2020/12/usdx-q...ver-built.html The uSDX is a fascinating new multi-mode transceiver design that uses an Atmel ATMega328P processor (normally seen in an Arduino) to do the digital signal processing for receive and transmit. The design comes out of an amazing hack of the QRP-Labs QCX CW transceiver.The transmitter is a very efficient class E design and PWM modulation combined with amplitude modulation gives a passable single |
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