Antenna modeling discussions about What happens if… a dipole is bent horizontally, laterally, vertically. Zig-zag, meander, catenary curve. Effect of sag, elevation, radials. OCF off-center feed, harmonics. Includes 4NEC2 antenna models for each study.
The HB9CV is a well known two element antenna of a directional beam type with a forward gain of 4 to 5 dBd. This one is for two metres but it can be scaled, from the dimensions in the diagram, for other bands I have also made them for four and six metres
A 500 kHz to 5.5GHz 2-port vector network analyzer designed for use with any Linux, Windows or MacOS computer. High performance: up to 80 dB dynamic range in the MHz range; up to 40 dB in the GHz range
Switchable MTFT for Wire-Antennas, Bent Dipoles reference website, UHF Crystal Radio, How to make a HB9CV , Spark Gap Transmitter, pocketVNA – portable Vector Network Analyzer, Learn Morse Code, Ham Radio – QRP, iotamaps – IOTA mapping project, KO4BB’s Manual Repository,
The DXZone is the largest human created and maintained library of web sites dedicated to Amateur Radio, currently lists 20.000+ links organized into 600+ categories and subcategories. Ham Radio operators review new sites every day since 1998, for potential inclusion in the Directory, and to evaluate the best place to list them
rpitx Multimode TX for Raspberry Pi, About Microphones - Guide to microphone for Ham Radio, Receiving GOES-16 Images with an RTL-SDR, EME Dish Antenna Project, CW and Morse Code Telegraphy, Pass Recorder, Morse Runner on MacOS,