RF Trap Resonant Frequency

I am constructing a lightweight 40/30/20/17/15m trap style inverted V dipole antenna for SOTA purposes. Can you use an antenna analyser to check the resonant frequency of a HF trap? Yes you can, here is a practical solution. The purpose of this post is to demonstrate how you can use a modern antenna analyser to…

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SOTA – VK1AD portable 70cm update #21 – Castle Hill

Sunday 7 August 2016, planned SOTA activation of Castle Hill, 942 metres ASL, 2 points on private property.  Maidenhead Grid Locator QF44MM Possible Summit to Summit contacts:  34 and far too many to detail here.   Today VK1 is holding the 2016 VK1 SOTA Winter QSO Party where Australian (VK) and New Zealand (ZL) SOTA…