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Caronlina Windom characterisation
I am working with some guys on ambient noise measurement in a pre BPL scenario. They are using FSM ( http://www.vk1od.net/fsm/ ) to make field strength measurements using a known comms receiver and a Carolina Windom (CW). We need to form a view on the CW antenna system losses (radiator, ground reflection, isolator, matching unit, feedline, ATU. Has anyone built and calibrated NEC models for the CW, or have they measured reliably feedpoint impedance on the various bands. This is not a troll, and I don't want to excite a war over the claimed performance of the CW, I am not interested in anecdotal evidence or QSO evidence as to whether they "work". I see that there will be significant issues in modelling the "secret" components of the CW unless someone has worked out an RF equivalent circuit of those components (the isolator and matching unit). Thanks... Owen -- |
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