ARLA/CLUSTER: Tem problemas de espaço use antenas em cabo coaxial e reduza o seu tamanho.

[João Gonçalves Costa]

The math and construction is very simple to each side of the dipole to 10m in 28.450mhz!

This antenna can be designed for the lower hf bands to greatly reduce the overall size versus the standard dipole type for those who have limited space for low band antennas.

Each side of the dipole is 0,66 x[(300/28.450)/4] = meters for one half of the antenna.. 

I use a RG58 foam (celular type).
 
The same math above in a more simple form:
.66 X 75 / 28.450mhz = meters in length per side (We eliminate the extra division step by 4)

Result is 1.73 meters per side, less 35% that its normal size.

Mais informações em: http://www.hamuniverse.com/K4mmg2and6meter.html

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