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| I captured this from ON4UN's book "Low-Band DXing" 4th ed. pg. 7-24. Essentially all of the antennas are connected in parallel and tr2 steps the impedance up so that there is a good match to the receiver only. Port to port isolation is near zero. All of the antenna ports have an SWR near 4:1. I'm quite sure that Tom, w8ji, has redesigned this circuit since it was initially described on his web site(it's no longer there). |  Original Image |
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