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Wire Aerials

Top Band Aerials used by some of the boys on the net

There are a lot of designs for 160m aerials on the internet here is some links of use full sites

A good site lots of info on wire aerials and ground systems From John G0LJT

Doublet Antenna From Peter Dodd, G3LDO

T antenna broadcast design by Galileo Marconi From Jim NN4AA on my website Andy G7LRR

Understanding Antennas For The Non-Technical Ham A Book By Jim Abercrombie, N4JA and free download very good read

Understanding Amateur Radio NVIS Antennas and Propagation by Harold Melton, KV5R

there are so many more design about far to many to list, but for those that want to get on 160m with a wire aerial the above links are good starting point.

Some online Calculators to help you work out wire aerial lengths

Quarter Wave Ground Planes

The standard ground plane antenna consists of a vertical radiator which is insulated and centred between 4 horizontal surrounding radials

which extend out from the base of the antenna.

Each radial is evenly spaced 90 degrees or so from each other around the vertical element.

Enter the formula for the antenna calculation (normally 234/f):

divided by Freq. MHZ

The vertical length is feet.

The 4 radials are each feet.

Half wave Verticals

The half wave vertical antenna consists of a vertical radiator which is fed from the bottom of the antenna.

A matching device should be added between the antenna and the feed line if you wish to use coax.

Enter the formula for the antenna calculation (normally 468/f):

Switch to:

divided by Freq. MHZ

Your half wave antenna's vertical length is

Quad Antenna

The cubical quad antenna is a four sided antenna, with each side a quarter wave length long.

Several factors influence the performance of the antenna, such as :

  • The antenna height above the ground

  • The diameter of the wire used

  • Nearby structures to where the antenna is mounted

  • Effects of other antennas or metal objects in the area

  • The conductivity of the soil

Enter the formula for the antenna (normally 1005/f):

divided by Freq. MHZ

Your quad's total length is feet

Each of the 4 sides are feet.

5/8th Wave Vertical Antenna

The 5/8 wave antenna consists of a vertical radiator fed at the bottom of the antenna.

A matching device should be used if you feed it with coax.

Enter the formula for the antenna (normally 585/f or 178.308/f for metric):

Switch to:

divided by Freq. MHZ

Your 5/8 wave antenna's Vertical element is

Dipole and Inverted Vee Antennas

Most familiar are the cantered, half wave dipoles and inverted vees that are so popular.

A basic formula for these types of antennas is below. For center fed, wire dipole antennas, the formula is 468/freq(mhz).

Enter the formula for the antenna:



divided by Freq. MHZ

 Percent smaller for an Inverted Vee.

Your dipole's total length is feet. Each leg of the dipole is feet.

Your Inverted Vee's total length is feet. Each leg of the Inverted Vee is feet.
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Radio 1933 Last modified: 7 Jan, 2010