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ground wire?


Any and all ground wires should be as short and as direct as possible. That is the only proper length for a ground wire. BTW you don't ground your longwire antenna but you do connect a ground wire from your radio to ground if that is what you mean.
 
A counterpoise is generally a quarterwave long. Not sure the antenna you are using but if you bought it it should have installation instructions. I used to have a 600 foot longwire and used it mainly fir RX so I never bothered much for a ground/counterpoise. I did use it a bit on 20m for TX into Japan however as it worked great in that direction.
 
I guess I mean counterpoise.. there is a place on the box on the antenna for something.
Try it without first, you might be surprised. I do have a QSOKing long wire installed and it works well, keep in mind I never run more than 100 watts. The fan dipole works better but if I only had the long wire I would be happy. I have no counterpoise on it.
 

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