PK's Loop Antennas
ABN 76 271 051 082
Clear & Long Range Radio Reception Everywhere
Copyright © 2000 PK’s Loop Antennas
www.amradioantennas.com
Installing your 40m Dipole Antenna
Your new PK’s HF Dipole Antenna is pre-tuned to the middle of the 40m Ham Band at 7.1 MHz,
no tuning or cutting is required. The balun should connect to your radio via a suitable length
of coax cable; with this in mind consider antenna height and coax cable length as the
deciding factors for installation. We can supply coaxial cables of various lengths, pre-fitted
with PL-259 connectors. Be sure to support the balun by the centre eyelet, to relieve the
weight of the coaxial cable on the dipole wires.
Basic T Dipole Antenna
Find a centre support point and two convenient mounting points for the wire ends like; nearby
trees, a fence post, the side of a building or put up some poles.
For DX ( Long Distance) communications, your 40m Dipole will work best at heights greater
than 8m and as far away from buildings and power lines as possible; otherwise interference
on reception and reduced DX range will occur.
If you intend operating the dipole in the N.V.I.S. ( Near Vertical Incidence Skywave ) mode for
Short Distance communications, then consider a maximum height of 3 to 4 metres, with the
dipole flat to the ground, doing this will cause the antenna resonant point to lower, so some
coiling up ( folding back) of the ends of the wires maybe required to resonate the antenna
back to band centre..
The next and most popular dipole and simplest installation method is the Inverted-V
configuration<
