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Micro Controller Projects


On this web site you will find a series of projects of interest to Radio Amateurs and other hobbyists
post 27 Aug 2021


Antennas theory Links

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Tableau des longueurs d'onde par bande
The tables below give for each amateur band and a few other frequencies the full wavelength (300 / f), the half-wave, and the quarter-wavelength

Trasformatori per antenne attive
Chiunque abbia sperimentato l'uso di antenne attive per la ricezione dalle ELF alle HF, avra' avuto modo di confrontarsi con la necessita' di separare galvanicamente l'antenna

What Antenna Should I Use to Hear Jupiter
In order to receive Jupiter above the roar of the galactic background radiation, you are going to need an antenna with some gain directionality. The absolute minimum antenna which will work for you is a dipole cut to the frequency of interest

10 m| 12 m| 15 m|
17 m 20 m| 2 m|
23 cm| 30 m| 40 m
6 m| 70 cm| 80 m| 160 m| 136 khz
Bazooka
Beverage
Cb Antenna
Collinear
Cobweb
Delta Loop
Eh
End_fed antenna
EWE Antenna
Fan Dipole
Folded Dipole
G5RV
Halo
Helix
Hentenna
Hidden Antenna
Hf mobile
HexBeam
Isotron
Jpole
Loop
Log Periodic
Low Band Receiving
Moxon
Multiband
Morgain
Ocf Fed Dipole
Quad
Slot
Spiral antenna
Vertical
Vhf-Uhf-Shf
Wifi & Ghz
Windom
Wire
Yagi
Ant.Masts and mounts
Ant.Transmatch
Antenna_Analysis
Antenna Receiving
Antennas Shortwave
Antenna Switch
Balun| Calculator Antenna
Duplex| Feed Lines
Fiberglass tubing
Phased Array
Projects Homebrew
Software Antenna
Software Defined Radio
Swr Meter| System of grounding
Theory| Traps| Tower
Sstv Software
Logging Software
Contest Logging Software
Digital_Mode
HF_radio_modifications
Interface Radio
Memory_keyers
Microphone setting
PC sound Radio Interface
Pocket Pc| Preaplifiers
Radio control
Radio programming
Radio Transceivers
RF Filter
Spectrum_Analyzer
Tracking satellite
Voice Messages & Keyer