I used to have a 40m NVIS dipole up in my back yard. 7' off the ground, with 3 reflector wires laid in the grass underneath it. I heard that those help out a lot, but not sure. Anyway, I would get "40 over" reports throughout Texas and into Arkansas (which was off of the NE-pointing end of that dipole) from my QTH in central Texas. I used to blow other operators minds with my booming, 100W signal. 😆
Are you gents talking about a reflector under the antenna? I know this is an old thread... I'm pretty new to this but will setting this antenna up this year
@@maytronix7201Yes. Make the 3 wires about 5% longer than the antenna. Lay one directly under the antenna, and the other two 6 feet out from either side of the one directly under the antenna.
NVIS antennas are less than 10 feet high, except in the case of the 2259's since they are inverted vee they are 12 feet at the top. This fact comes from years of experience, not some theorist and flawed eznec's.
Hey instead of using a coil have you ever thought about doing linear loading instead? It will accomplish the same thing but you don't take the hit on the bandwidth as a matter of fact your bandwidth pretty much remains the same you might give it a try
Just picked up this very antenna
I used to have a 40m NVIS dipole up in my back yard. 7' off the ground, with 3 reflector wires laid in the grass underneath it. I heard that those help out a lot, but not sure. Anyway, I would get "40 over" reports throughout Texas and into Arkansas (which was off of the NE-pointing end of that dipole) from my QTH in central Texas. I used to blow other operators minds with my booming, 100W signal. 😆
Do a search for "Super NVIS antenna". Using a ground screen gives you 6 dB improvement
See my reply above. I used a Super NVIS. 😎😎
Are you gents talking about a reflector under the antenna?
I know this is an old thread... I'm pretty new to this but will setting this antenna up this year
@@maytronix7201Yes. Make the 3 wires about 5% longer than the antenna. Lay one directly under the antenna, and the other two 6 feet out from either side of the one directly under the antenna.
@@ronbo422 ok... thanks Ron
NVIS antennas are less than 10 feet high, except in the case of the 2259's since they are inverted vee they are 12 feet at the top. This fact comes from years of experience, not some theorist and flawed eznec's.
Questions on 10 m ground wave, what kind of distance were you getting and what type of antennas were you using
Hey instead of using a coil have you ever thought about doing linear loading instead? It will accomplish the same thing but you don't take the hit on the bandwidth as a matter of fact your bandwidth pretty much remains the same you might give it a try