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Tag: Antenna
Antenna Measuring Event – February 2021
The room was electric with excitement (well almost !) after the conclusion of the business portion of February’s Branch 05 monthly meeting. Several club members had been like Busy Bees over the Christmas New Year period and constructed Home Brew antennas. The idea was something simple (preferably mountable as a vertical) which would work on...
Antenna Measuring & BBQ – January 2021
On 24th January, the club held a combined BBQ and antenna measuring day at Agricultural park. In an adjacent park, the ‘Green radio boy’ ZL3KB had setup a reference ¼ wave vertical on 40m to measure the radiated power from his WW2 man packs. From Rob ZL2IW: We were advised to keep clear of the...
50MHz Beam Antenna – August 2020
The club built a kitset 4 Element 50ohm Yagi with 2.2m Boom.Based on a DK7ZB design https://www.qsl.net/dk7zb/6m/428-breit.htm (bottom of page) Medium bandwidth, high gain design with a gain of 6.8dBd and F/B ratio of lSdB Design will be built with 25mm/lin square boom, with 9.35mm/¾in elements. Elements will have 12.7mm / ½in centre sections for...