The Micro24 is a ultra compact microsize QRP SSB transceiver for the 20 meters amateur radio band. This transceiver is so small that it fits into one hand.
Homemade moxon antenna for the 40 meter band. This article is not very descriptive but includes some very detailed images
The receiving antenna setup for the top band, made with a 9 elements vertical antenna array, remote controller and remote relais.
How to make a dual-band VHF/UHF handheld Moxon Antenna to work satellites
In this article the author shows the receiving loop antenna for 160 meters band installed at his QTH. Diagram and movie available. Article in in Turkish but can be translated in english
A homemade simple and inexpensive portable antenna support, handy for quick trips to the field and other portable operations
The NanoVNA is a very compact handheld Vector Network Analyzer. The NanoVNA is tiny and portable analyzer, and it offers a high performance capabilities with an embedded lcd display.
This article describes the construction of a high performance transmitter and receiver for SSB (voice) communication covering the 14MHz (20 meters) high frequency amateur radio band with output range 15 to 20 watts and a top audio sound quality both on transmit and receive.
This software connects to a NanoVNA and extracts the data for display on a computer, and for saving to Touchstone files.
DK7IH QRP transceiver for 14 MHz. This small and compact home made transceiver with a max power output of 5W, the VFO module is based on the clock oscillator chip Si5351A by Silicon Labs ATmega168 and OLED 1306