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Disk
Cone
Ramsey offers two models of this particular antenna, one with no active
components and the other with a low noise preamplifier to further boost the
antenna gain.
The DA25 kit which you are about to assemble is the non-preamplified
version. The advantages to this particular model are its ease of use (no
external power required) and the fact that it can just as easily be used as a
transmit antenna as well. Experimenters have used this particular design for a
host of transmit applications including increasing the distance of their PC's
wireless LAN to boosting the range of cordless phones.
However, if your particular application is for reception only, and power is not
an obstacle, you may decide to "upgrade" to the preamplified version of this
kit, the DAP25. The good news is, if you have not begun assembly, you may
return your kit for full credit towards the amplified version.
Coaxial Cable Center Conductor
Coaxial Cable Shield
Mounting Pipe
Coaxial Cable
DA25 • 9
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