Hi
Is there any reason why, when I build my own 5 Band Cobweb, Instead of using a 4:1 Balun inside the links box, I just use my favourite, the good old Ladder Feeder and use my home built Z Match ATU to get the balance I need to keep the SWR down?
5 Band Cobweb Feeder?
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Re: 5 Band Cobweb Feeder?
Because it's a nest of folded dipoles and you'll cock the impedance up, and the performance.
The balun is a 1:4 btw.
The balun is a 1:4 btw.
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- ch25
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Re: 5 Band Cobweb Feeder?
The point is to have resonant antennas, not to tune barbwire with ATU. That's why Cobweb is built the way it is.
Chris
Chris
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You can't have too many antennas...
You can't have too many antennas...
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Re: 5 Band Cobweb Feeder?
You could fool the radio into thinking the antenna's 50 ohms, but the antenna will still be poor.acting_strange wrote: ↑20 Aug 2019, 19:43But surely with an ATU I can match the impedance to any of the antenna used?
Build a man a fire, he'll be warm for a night. Set a man on fire and he'll be warm for the rest of his life.