Ramsey Electronics DA-40 - Manual (Page 6)

Page 6 RAMSEY DA SERIES DIPOLE ANTENNA
PARTS LIST
ˆ 3 End Insulators
ˆ Length of Coaxial Feedline Cable
ˆ Length of Rope
ˆ 1 PL-259 Connector
ˆ 1 UG-175/U Reducer
ˆ Length of Antenna Wire
ˆ 2 Wire Cable Ties
REQUIRED, NOT SUPPLIED
ˆ Some Good Friends (Suckers)
ˆ Soldering Iron Gun with Rosin Core Solder
ˆ Waterproof Sealant (Silicone) and Electrical Tape
ˆ Radio Transmitter
ˆ Sharp Knife
ˆ Wire Cutters
WHAT KIND OF ANTENNA IS BEST FOR YOU?
Unlike many antennas that you can find on the market, the Ramsey dipole
antenna is capable on being constructed in two configurations. These are, a
normal dipole, and an “Inverted V” antenna. A normal dipole is just what we
have been talking about. An Inverted V is a variation of a normal dipole that
features slanting wires for easier mounting on small properties, or where you
wish to mount the center of your antenna high without having to build two
high endpoints (see diagram on next page). Antenna critics agree that there
is little difference in performance between the two antennas.
One difference between the two types of antennas is the wire length.
Because of slightly different antenna characteristics, the Inverted V antenna
is slightly shorter. This has to do with a number of physical factors such as
end effect (the magnetic and electric fields at the end of the wire), and the
proximity and angle to the ground. To accommodate this difference in