Sunday, April 24, 2016

160 Meter Vertical + Antenna Dimensions

160 Meter Wire Antennas



Center Frequency:   1.840 Mhz   5.43 Mhz 3rd Harmonic
Halfwave in space is:  267.39 feet 181.83 coax|219.26 twinlead
Quarterwave in space is: 133.70 feet  90.91 coax|109.63 twinlead

Quarterwave Vertical is: 127.17 feet 149.74 foot ground radials
Five Eights wave Vertical is: 327.72 feet 127.17 foot ground plane
Three Quarter wave Vertical: 394.57 feet 63.59 foot eighthwave

Halfwave Dipole/Vertical is: 254.35 feet 127.17 one side.
Halfwave Reflector is:  267.07 feet 242.90 for Director
Low Mount Halfwave is:  248.91 feet 124.46 one side.
Halfwave Folded Dipole is: 251.09 feet 125.54 one side.
Halfwave Inverted V is:  263.59 feet 131.79 one side.
Colinear Array is:  521.74 feet 260.87 one side.
Extended Double Zepp is: 655.43 feet 327.72 one side.

Fullwave Quad Loop is:  554.35 feet 138.59 one side.
Reflector|Director:  582.07|529.40 145.52|132.35 one side.
Fullwave Delta Loop is:  554.35 feet 184.78 one side.
Reflector|Director:  582.07|529.40 194.02|176.47 one side.

Waves 1: 521.74 |1.5: 789.13 |2:1056.52 |2.5:1323.91 |3:1591.30 |4 :2126.09
Waves 5:2660.87 |6.0:3195.65 |7:3730.43 |8.0:4265.22 |9:4800.00 |10:5334.78

                   Note: 10 waves is well over a mile long.


No doubt a 160 meter dipole is not in the cards.  Getting this antenna up 0.5 Wavelength would
mean that it would have to be 245' off the ground.   Any attempt at a 160 Meter dipole would be
"Skywarmer " in other words radiation goes straight up!!!!   

Plane B ....

The Vertical

The numbers .....

Quarterwave Vertical is: 127.17 feet 149.74 foot ground radials


127' is a bit of a stretch when it comes to trees but I do have one advantage and that I some 
big ass trees on the side of a very steep hill.   I have read to that it doesn't have to be 100% V
Vertical and so its doable.    Planning on 8X radials each 150' .... its going to be fence wire.

So I need 1,200'of wire for the radials and I already have the 127' vertical wire ... lets get 
building!    




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