For:             CB channels 11 meter band
Antenna Type:    8 elements V-Yagi
Bend Radiator (k6STI)
Designed by:    HPSD version 1.01 feb 2014
Boom length:     16,22 Meter
Gain:         12,56 dBI (@27,100 MHz, Peak gain: 12,86 dBI @ 28MHz)
FB            <31 dB
FR            <22 dB
Impedance:         50 ohms, direct fed
SWR 1:1 700 KHz.
SWR below 2:1    > 1800 KHz

 

Above The Freespace azimuth plot.

 

Above the freespace elevation plot

At 18 meters above average ground the antenna produces almost 18dBi under a 8 degree take off angle.

Above SWR bandwidth (2;1)

 

 

The azimuth plot at different frequencies.

Elements:

All elements are made out of 1 inch and 7/8 inch tubing.

The center piece of 1 inch has a total length of:1,97 meters long

The 7/8 inch tubing is inserted to complete the rest of the element length

Distance:     Element     Length:

0 M               Reflector     5,450 M

1,05 /0,75M  Radiator      5,220 M

2,00 M          Director 1    5,010 M

3,70 M          Director 2     4,880 M

6,15 M          Director 3     4,780 M

9,60 M          Director 4     4,760 M

13,00 M        Director 5     4,720 M

16,22 M        Director 6     4,380 M

 

not for commercial use.

any questions ? please use the forum.