The radio started life as a QRP Labs QCX, a $49 single-band CW (morse code) HF transceiver kit that is already one of the cheapest ways to get on the HF bands.

This is a simple and experimental modification that transforms a QCX into a (Class-E driven) SSB transceiver. It can be used to make QRP SSB contacts, or (in combination with a PC) used for the ...

Cheap microcontrollers and signal generators have helped turned things around, and the $60 USD QDX from QRP Labs goes even further by sending the performance/price ratio through the roof.

Publication date 2019-05-25 Topics Youtube, video, Science & Technology, ham radio, amateur radio, radio kits to build, radio kit assembly, ssb radio, rtty ham radio, psk31 kit, am radio, 160m, 10m, ...

Simple, fun and versatile QRP SSB HF transceiver with embedded DSP and SDR functions; EER Class-E driven SSB transmit-stage Approximately 5W PEP SSB output from 13.8V supply All-Mode support: USB, LSB ...