Projects for the amateur radio engineer. Hardware, software, electronics and test equipment for the amateur community.
Abstract A general and good practice in engineering is a steady process of improvement. This article describes the construction of a high performance transmitter/receiver for SSB (voice) communication covering the 14MHz (20 meters) high frequency amateur radio band. Various modules that have proven high performance, liability and ruggedness in recent constructions will be combined…
Preface Currently I am revising older projects that are in my radio shelf, some of them not finished yet, postponed to a later date, some without a cabinet, some with severe problems with performance and so on. All the stuff that needs a “second chance” ;-). This project is one of this collection. The transmitter…
This article describes the “Cigarette Pack” SSB QRP transceiver” for 14MHz that I first had mentioned some months before. Recently, when taking it from the shelf, the transceiver dropped to the floor and was severely damaged. This lead to serious defects in the front panel area, the main frame, the cabinet and so on. The…
This transceiver was built to celebrate my 30 years anniversary in homebrewing QRP transceivers. The 14MHz rig was designed building an SSB transceiver like I did in the 80s. The only exception was, that this one uses SMD technology whereas in 1987 I used thru-hole components. But the rest is original 80s-style: VFO instead of…