Radio Experimenter's Blog

【 30mバンドのホイップ・アンテナを作る 】 abstract The 30m band is a new HAM band in Japan; it has been authorised since 1 April 1982.　Only HAMs with an ad...

【 怪しげな6mのアンテナ 】 abstract I got a whip antenna for the 6m band at a junk market.　However, the resonant frequency of this antenna seems to ...

【 磁石アース板の製作 】  abstract The "Magnet Earth ground Plate" is made of a thin rubber plate magnet and a thin metal plate. It has th...

【 自動車無線と車載アンテナの話 】 abstract Modern vehicles are more aerodynamic in character. It has become more difficult to mount HAM antennas in such...

2024年も楽しい一年になりますように．