Block diagram of a 20m SSB transmitter. The first SSB transceiver I developed was for 20m, which is arguably the most fun HF band. The marine net is on 14.300. Lots of DX during the daytime hours.

It’s an SDR transceiver for HF which does all the work ... idea to working SDR over the space of about three weeks. A block diagram of the N6QW SDR So what goes into a homebrew SDR?

The ultra-low-power RF transceiver is designed to meet standards such as Bluetooth Low Energy (Bluetooth Smart), 802.15.4 PHY Layer (e.g. ZigBee), and proprietary standards with data-rates from 62.5 ...