Amateur Radio Links
Here is a collection of amateur radio links.
Antennas
- Frank N4SPP’s antenna projects https://www.nonstopsystems.com/radio/antennas_home.htm#top-of-page which includes End Fed Half Wave (EFHW) antenna construction with links - https://www.nonstopsystems.com/radio/frank_radio_antenna_multiband_end-fed.htm (added 22/11/20)
- L.B. Cebik W4RNL (SK) documents http://on5au.be/Cebik%20documents.html
Electronics
Calculators
- Filter design, Skin depth, Smith Charts etc - https://leleivre.com/rftools.html (added 14/4/20)
Class D/E Amplifiers
- Class E amplifier design and construction - http://www.classeradio.com/ (added 14/4/20)
- AMfone Class E forum - http://amfone.net/Amforum/index.php?board=76.0 (added 14/4/20)
- VK3HN’s website (links to the sites above and more) - https://vk3hn.wordpress.com/am/
Transceivers
QRP SDR
- Transform QCX into an SDR SSB transceiver https://github.com/threeme3/QCX-SSB
- Micro software defined transceiver (uSDX) group https://groups.io/g/ucx/topics
General
Homebrew
- Peter B Marks VK2TPM marxy’s musing on technology - http://blog.marxy.org/
- Owen Duffy VK2OMD - https://owenduffy.net
- Peter Parker VK3YE - http://vk3ye.com/
- Charlie Morris ZL2CTM - http://zl2ctm.blogspot.com/
- EDN Create radio receiver circuits with the LM386 audio amplifier - https://www.edn.com/create-radio-receiver-circuits-with-the-lm386-audio-amplifier/