C463 Multiwire Broadband Dipole Antenna (2–30 MHz)
Page 8 of 11
15-00463-901 Issue 1, September 2005
Guy ropes
If the masts are guyed, the guys should not be located beneath the antenna, so that they
do not interfere with the raising and lowering of the antenna. If metallic guys are used, it
is recommended these be broken up with ‘egg’ insulators at regular intervals to shorten
the effective wavelength of each wire, and thus reduce any degradation to the antenna
radiation pattern.
Attaching the antenna to the masts
To attach the antenna to the masts:
1
Attach a pulley using a D-shackle to the top of each mast.
1
Cut the main halyard into two equal lengths.
1
Run one length of the halyard from the base of the mast to the top, through the
pulley and back to the base again, then tie the two ends together.
1
Erect the mast.
1
Repeat this procedure for the second mast.
1
Lay the antenna midway between the masts.
1
Carefully separate the two halves of the antenna without cutting any plastic cable
ties that hold the antenna wires in place in the packaging.
1
Orient the antenna parallel to the intended line of installation.
1
Ensure that the wires connecting the balun to the centre spreaders are below the
main antenna wires, and that the terminating load will hang above the balun when
the antenna is installed.
1
Working on one of the four antenna sections at a time, cut the plastic cable ties that
secure the section, then carefully extend each out.
CAUTION
Do not erect the masts until the pulleys and halyards are in place.
CAUTION
Take care not to tangle the wires. Do not cut any of the wires.
