Tuesday, January 7, 2014

RMS Antenna

This is a two band antenna working on 20mtr and 40mtr Amateur Radio bands.
The two band antenna (20m and 40m) radiating elements are fed on the single coaxial cable and the plastic spreader are shown in the below figure .





Two 34 Feet long wires are taken for the 40m antenna and two  17 Feet long wires for 20m antenna. Both the live wires are joined at the connector hot end and the return wires are soldered to the ground terminal of connector.  The 40m and 20m radiating wires are separated by the insulating material. Here we have used the plastic spreader of length 5.5 Inch.
After erecting the antenna the radiator wire length need to be adjusted for best SWR. Typically 1.2:1 is achievable.

We will be adding photos soon after tuning.

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