Two Vertical Antennas for 20-, 15- and 10- meter Bands

The publication is devoted to the memory of UR0GT.

Credit Line: Forum from:

www.cqham.ru

By: Nikolay Kudryavchenko, UR0GT

Below described two vertical antennas that work without any ATU at the 20-, 15 and 10- meter Bands. The antennas easy to made and easy to tune to the bands.

Figure 1 shows Triangle Vertical Antenna. Figure 2 shows the antenna in 3d projection.

Figure 3 shows Vertical Antenna with Inductor. Figure 4 shows the antenna in 3d projection. The inductor has inductance in 10- microHenry. Mutual capacitance of the inductor should be not more the 1- pF. For example it is possible to use inductor with OD 4.8- cm, coiled by wire in 1-mm dia (19- AWG), gap between turns 1- mm, inductors has 15 turns.

The MMANA model of the Triangle Vertical Antenna for 20, 15 and 10- meter Bands may be loaded: http: //

www.antentop.org/019/two_verticals_ur0gt_019.htm

The MMANA model of the Vertical Antenna with Inductor for 20, 15 and 10- meter Bands may be loaded: http: //

www.antentop.org/019/Two Vertical Antennas for 20-, 15- and 10- meter Bands_019

Figure 1 Triangle Vertical Antenna for 40, 20 and 10- meter Bands

www.antentop.org

Page- 44