history

115 links - and 1 categories

Antenne double-bazooka - F4FAA
A page in french dedicated to the double bazooka antenna with a short history of ...

[ Hits: 1081 | Votes: 12 | Rating: 5.58 ]

40 Meter 4 Square - K7NV
A four square antenna for the 40 meters band with pictures project history and antenna ...

[ Hits: 466 | Votes: 0 | Rating: 0 ]

Morgain Antenna, the old lady - I1CRA
An introduction to history of Morgain Antenna since the early origins in Virginia to the ...

[ Hits: 1469 | Votes: 6 | Rating: 7.33 ]

4 El. Quad Antenna for 144 MHz - KD5CTJ
A four element 2 meter quad antenna project

[ Hits: 1316 | Votes: 3 | Rating: 6 ]

The Yagi-Uda Antenna - KX4O
An interesting presentation on history and characteristics of Yagi-UDA antennas

[ Hits: 661 | Votes: 0 | Rating: 0 ]

Amateur Service Spectrum Requirements at 7 MHz - IARU
An information paper by the International Amateur Radio Union History of 40m allocation propagation properties ...

[ Hits: 712 | Votes: 3 | Rating: 8 ]

Sheffield Amateur radio Club - SARC
The Sheffield Amateur radio Club was founded in the 1920 and has a very long ...

[ Hits: 181 | Votes: 3 | Rating: 10 ]

The IZ1UQG personal page - Alessandro
QRZ personal page, history, log, equipment and more

[ Hits: 216 | Votes: 0 | Rating: 0 ]

Invention Story of Radio
History of Radio from the invention of telephone and telegraph to the invention of radio ...

[ Hits: 213 | Votes: 1 | Rating: 8 ]
A Brief Chronology of Amateur Radio Satellites - AMSAT India
History of amateur saltellites compiled by AMSAT india

[ Hits: 400 | Votes: 0 | Rating: 0 ]
The first Amateur Lunar contacts - ok2kkw
The first EME history was written in 1944 when first EME echoes were received on ...

[ Hits: 325 | Votes: 0 | Rating: 0 ]
Morse Key History - Ian Poole
An overview of the development of the Morse key for sending the Morse Code from ...

[ Hits: 196 | Votes: 0 | Rating: 0 ]
Spark Gap Transmitter - Ian Poole
The details of the spark gap transmitter and its history how it was invented developed ...

[ Hits: 385 | Votes: 1 | Rating: 10 ]
Icom History - ICOM
Learn about Icom s innovative history of designing engineering and manufacturing wireless communications This interactive ...

[ Hits: 254 | Votes: 0 | Rating: 0 ]

Codes of the World - Morse Code
History of codes of the world russian codes visual codes and al long collection of ...

[ Hits: 991 | Votes: 0 | Rating: 0 ]

HST - highspeedtelegraphy - Fri
Highspeed Telegraphy news, history and rankings of HST Championships

[ Hits: 220 | Votes: 23 | Rating: 9.53 ]

Sunspot Cycles and Human History - Michael Mandeville
An article edited and published by Michael Mandeville on correlation of sunspot peaks and global ...

[ Hits: 447 | Votes: 1 | Rating: 10 ]

AL80 Ameritron History
An article on popular AL80 HF power amplifier manufactured by Ameritron since 1980

[ Hits: 221 | Votes: 1 | Rating: 10 ]

UHF Connector - electronics-notes.com
An overview about the UHF connectors often referred to as the PL259 plug and SO239 ...

[ Hits: 352 | Votes: 0 | Rating: 0 ]