ANTENTOP- 01- 2019, # 023

R2DII Mini Dipole Antenna for 14- MHz Band

Figure 2

Transformer of the R2DII Mini Dipole Antenna for 14- MHz Band

Antenna has input impedance near 18 Ohm. Thereof for feeding of the antenna I use home- made transformer 18/50 Ohm. Figure 2 shows design of the transformer. Transformer was wound on a ferrite ring with permeability 1000 and dimensions OD28xID16xH9. With the transformer antenna has good SWR in 100- kHz bandwidth.

Antenna was installed at distance of 1.5- meter apart of metal enclosure of the balcony. Figure 3 shows the installation of the antenna.

While installation and testing the antenna there were made SSB QSOs from my city Podolsk, Moscow region. It was used just 100- W.

DK1VP- 59; 4U1A -59; RW6AU -58; LZ33MM -59;
UN8LWZ -59; RA6HVW -59; RN6DZ- 59; S57S -59;
RK6AAW -59; SV3GLL -59; GOSXC -59; SL1NKS -59;
A41NND/ND -59; 3Z100I -59; 4L1BB- 56; ON1418END -59; OV1CDX -59; IK2IQD -59; RU1ZC -59.

Of course, it is a compromise antenna but the antenna provides good result in the Air. I would like say Thanks to Aleks, RA3ATA, for his help with tuning of the antenna.

73! R2DII

Figure 3

Installation of the R2DII Mini Dipole Antenna for 14- MHz Band on the Balcony

Credit Line: http://www.qrz.ru/schemes/contribute/antenns/r2dii-mini-dipole.html

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