A discone may be made from solid metal sheet often copper which is practical for small indoor uhf antennas such as for wi fi.
Discone antenna sheet metal.
What are the bands of operation of the discone antennas.
Rust free stainless steel is employed in major component parts making the.
At lower frequencies a sufficient number of metal wires or rods in a spoke configuration is often used to approximate a solid surface.
Sirio antenna sd2000n 100 mhz 2 ghz discone wide band antenna.
Figure 3 return loss of radioshack 20 043 discone antenna.
Figure 2 return loss of aor da3000 discone antenna.
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Gra d220 144 440 900 1200mhz 2m 70cm 33cm 25cm mini discone multiband wideband mobile scanner antenna 38 19 inch.
The high frequency bands picked up by these antennas are in the range of 3 mhz to 30 mhz.
4 8 out of 5 stars 22.
It consists of a top disc underneath which is a cone.
This simplifies construction and reduces wind loading.
Wind resistance or wind loading and its weight.
This is the basic form for a 16 spoke discone antenna.
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Small uhf forms may be constructed of sheet metal and thus exhibit the distinctive disk and cone.
This antenna is often implemented in a skeleton form.
Only 16 left in stock order soon.
The aor da3000 uses 16 while the diamond.
Sheet metal as illustrated in figure 1.
The modes of operation for new and used discone antennas may include the following.
At lower frequencies a sufficient number of metal wires or rods in a spoke.
When using rods at least eight should be used.
The disc and cone can be made from solid metal sheet but this would increase the windage i e.
D3000n super discone antenna 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.
Although sometimes called a scanner antenna the discone antenna receives its name from its shape.
Jan feb 2007 39 figure 7 wire table of an eznec discone model.
A discone may be made from solid metal sheet often copper which is practical for small indoor uhf antennas such as for wi fi.
