Discone Antenna Sheet Metal

Gra d220 144 440 900 1200mhz 2m 70cm 33cm 25cm mini discone multiband wideband mobile scanner antenna 38 19 inch.

Discone antenna sheet metal.

Sheet metal as illustrated in figure 1. Free shipping by amazon. 4 8 out of 5 stars 22. A discone antenna is a version of a biconical antenna in which one of the cones is replaced by a disc.

Figure 3 return loss of radioshack 20 043 discone antenna. Small uhf forms may be constructed of sheet metal and thus exhibit the distinctive disk and cone. The modes of operation for new and used discone antennas may include the following. What are the bands of operation of the discone antennas.

Rust free stainless steel is employed in major component parts making the. Only 16 left in stock order soon. Get it as soon as thu sep 17. A discone may be made from solid metal sheet often copper which is practical for small indoor uhf antennas such as for wi fi.

The antennas pick up bands in the very high frequency range of 30 mhz to 300 mhz. Figure 2 return loss of aor da3000 discone antenna. The cone section below the disk will have the cone apex angle changed in a suite of tests. 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.

This is the basic form for a 16 spoke discone antenna. It consists of a top disc underneath which is a cone. The high frequency bands picked up by these antennas are in the range of 3 mhz to 30 mhz. At lower frequencies a sufficient number of metal wires or rods in a spoke.

A discone may be made from solid metal sheet often copper which is practical for small indoor uhf antennas such as for wi fi. The disc and cone can be made from solid metal sheet but this would increase the windage i e. 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.

When using rods at least eight should be used. This simplifies construction and reduces wind loading. The aor da3000 uses 16 while the diamond. This antenna is often implemented in a skeleton form.