BROADBAND HF DIPOLE ANTENNA
Thank yo” for purchasing the Diamond HF Dipole
using the antenna, please
OPERATING INSTRUCTIONS to operate
adjust the forward
Switch the wattmeter
to read reflected
range. and it is very easy to assemble.
First check for broken.
for multiple antennas
na tunes between the transceivers
or an anten-
and antenna are elimi-
suggested installations. For best performance, the antenna
150 W PEP
should be installed with the radiating elements in a horizon-
tal (“Fiat Top”) configuration, and as high as possible.
2:l from 2-18 MHz,
the directions of maximum radiation and
are at right angles to the radiating elements, and
3:l above 16 MHz
this should be considered when planning installation.
this radiation pattem is based on an ideal antensituation near the ground
structures and power lines;
and neatby structures may
affect the feedpoint impedance
and adjacent to other
and orientation cari significantly improve
Proximity of ground
of the antenna, SO
of the antenna could be required to achieve
a good VSWR.
match of the antenna should be verified
prier to using the antenna with a transmitter, or if there is
doubt about performance.
Install a directional
the antenna rel-
Refer to the drawings on the opposite side of this sheet for
and may be considerably different
Then consider reconfiguring or reorienting
na in free space,
Lads or faulty connections in the feedline
ative to the ground or nearby structures.
should be corrected
nated by the unique broadband design.
antenna is designed to
to “se the antenna.
provide optimum performance over a wide frequency
The usual requirements
with a steady carries
output power for approximately
excess of 5 watts, the problem
properly. SAVE THESE INSTRUCTIONS.
The WD330S broadband dipole
Key the transmitters
between the antenna and the
DAMCHI DENPA KOGYO CO., LTD. 445-l Konakai Nakadori Kawagoe.