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如何做哪?
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okay it looks like a t2fd that has been folded over. usually they have a
load resistor“加载电阻” (600 ohms maybe) and a toroid matching transformer at thefeedpoint. (the antenna is close to 600 ohms without the transformer)
cebik explains how much loss this system incurs so you can make some
judgements from that.
the smaller capture area than a "real" t2fd may
mean another(损耗) 3-6db or so of loss.