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Results tagged with counterpoise
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user 10565
Elevated ground plane
6
votes
How Does the Performance of Elevated Radials Differ from That of Buried Radials?
The number of horizontal radial wires used in an elevated "counterpoise" can be far fewer than the 120 buried wires used by most AM broadcasters, and the even fewer numbers of buried wires often used with …
- 2,940
5
votes
Accepted
Why are many ground radials preferable to a single ground stake buried 1m deep?
A dipole antenna does not require a connection to an "r-f ground" reference, either in the form of a ground rod or a set of buried radials. Its radiation efficiency typically is ~95% or more without …
- 2,940
2
votes
Counterpoise/ground/radial options for an Inverted L
Here is another answer on this site about buried vs. elevated radials.
- 2,940
1
vote
When and why does the size of a ground plane or radials matter?
The length and number of buried radials desirable for a given vertical monopole depend significantly on the operating frequency and the conductivity of the earth in which they are buried. The graphic …
- 2,940
1
vote
Vertical antenna
As a start, below is a NEC analysis of the system described in the OP.
The horizontal radials lie along the +Y or the + and -Y axes.
- 2,940
1
vote
How Do Ground-Mounted Verticals Compare to Elevated Verticals?
Below is a graphic comparing some of the operational parameters of ground-mounted and elevated vertical radiators for the 40-meter band.
Their performance when installed at sites with relatively poor …
- 2,940