ITU is the United Nations specialized agency for information and communication technologies – ICTs. "We allocate global radio spectrum and satellite orbits, develop the technical standards that ensure networks and technologies seamlessly interconnect, and strive to improve access to ICTs to underserved communities worldwide. ITU is committed to connecting all the world's people – wherever they live and whatever their means. Through our work, we protect and support everyone's fundamental right to communicate." source:http://www.itu.int




vendredi 21 octobre 2011

G4ZU JUNGLE JOB

Processing " JUNGLE JOB " antenna is very easy and quick install in gardeen house. Check details very well the distance between the differents parts as the synoptic below and you can enjoy an antenna system with 5Decibels Gain improved. Just 1 point on Smeter.
G4ZU is a antenna with copyrights trade  but you can build yourself for you and free. This system is composed by a system dipole  coupled reflector V (improves gain with small directivity)  With coaxial cable, the balun  is necessary and if the length is adapted.















In differents sources internet, you can find G4ZU system as different built positions. but always as the portable system antenna. In some cases bibliography, G4ZU is composed by a horizontal dipole and the second element is just the reflector in V. It was this variation antenna  process that i have experimented in built at house. 

In some books antennas, "G4ZU Jungle Job" antenna can be more complex, with a third element (reflector in V, dipole ray, director in V) as the "Spiderbeam" antenna trade... It's only a monoband system transmit  (including balun+coax)
Or directly coax+gamma match (if the dipole is aluminium 😋)

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