[TowerTalk] NVIS

[Steve Maki]

Tim,

You were obviously going for best high angle *RX* capability, which 
requires attenuation of all low angle (i.e. static) reception. Truly a 
specialized antenna.

-Steve K8LX

On 06/11/20 10:27 AM, Tim Duffy wrote:
> Hello Wilson:
> 
> Each radial (6) is 95 feet long. There are two that are directly under the two sides of the dipole the other four start out at the feedpoint of the dipole and the ends are 3 feet apart with respect to the ones that are directly below the dipole.
> 
> I used this low height (20 feet flat) resonant dipole antenna for a long time without the radials on the ground and it worked great (NVIS). I think it works better with the radials - but not night and day better.
> 
> There was a question about my S0 noise level. That is a result of no switching supplies in the shack or house and working with the power company and neighbors to eliminate all man made noise sources. Also correctly grounding and bonding antennas, towers and shack components. Lots of ferrite in the right places. And a few visits from K3RFI!
> 
> 73
> Tim K3LR
> 
> -----Original Message-----
> From: Wilson Lamb [mailto:infomet at embarqmail.com]
> Sent: Thursday, June 11, 2020 10:16 AM
> To: Tim Duffy
> Cc: 'undefined'
> Subject: RE: [TowerTalk] NVIS
> 
> Hi Tim,
> What's the orientation of the "radials"?
> Are they maybe parallel to the antenna?  Cut to be reflectors?
> Have you compared that antenna to a higher dipole in about the same orientation?
> I'm sure going to listen for it.
> WL