144 MHz, Quadruple-Quadlong - DK7ZB design
I have managed to finish my new antenna - Quadruple-Quadlong designed by Martin DK7ZB. The gain of this antenna is 9 dBd. The reason why I have chosen this antenna is simple. I don't have a garage where I could build and store my antennas here in Chesterfield (UK) at the moment, so everything has to be simple, portable and small. I used PVC electrical conduit pipes and designed and printed some parts needed for the construction. Overall I am happy with this antenna and it works very well. My longest contact with this antenna was 869 km during Marconi memorial / A1 contest in Novemeber 2017.
| 3D modeling | |
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The brass tubes are fastened by cable ties. |
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| Practical realisation with the 3D printed parts |
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50 Ohm choke with RG-142 |
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Radiator |
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The antenna during Marconi memorial / A1 contest