Sirio antenna sd2000n 100 mhz 2 ghz discone wide band antenna.
Discone antenna sheet metal.
Gnec is only available to user s who are licensed from lawrence livermore national labs to use nec4.
At lower frequencies a sufficient number of metal wires or rods in a spoke configuration is often used to approximate a solid surface.
These antennas include the bicone discone helix and oth ers.
A discone may be made from solid metal sheet often copper which is practical for small indoor uhf antennas such as for wi fi.
Although sometimes called a scanner antenna the discone antenna receives its name from its shape.
The disc and cone can be made from solid metal sheet but this would increase the windage i e.
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This simplifies construction and reduces wind loading.
Jan feb 2007 39 figure 7 wire table of an eznec discone model.
Wire antennas assembled from expanded metal or even poultry netting.
The aor da3000 uses 16 while the diamond.
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This is the basic form for a 16 spoke discone antenna.
Sheet metal as illustrated in figure 1.
Gra d220 144 440 900 1200mhz 2m 70cm 33cm 25cm mini discone multiband wideband mobile scanner antenna 38 19 inch.
The cone section below the disk will have the cone apex angle changed in a suite of tests.
A discone antenna is a version of a biconical antenna in which one of the cones is replaced by a disc.
Only 16 left in stock order soon.
Each of these broadband antennas has.
Rust free stainless steel is employed in major component parts making the antenna rust resistant and durable.
Ed figure 5 shows the simulated.
When using rods at least eight should be used.
Wind resistance or wind loading and its weight.
The d3000n super discone antenna is an ultra wideband antenna covering amateur radio commercial 2 way cellular air traffic control and various utility frequency bands.
A discone may be made from solid metal sheet often copper which is practical for small indoor uhf antennas such as for wi fi.
At lower frequencies a sufficient number of metal wires or rods in a spoke.
It consists of a top disc underneath which is a cone.
Small uhf forms may be constructed of sheet metal and thus exhibit the distinctive disk and cone.
