A very stable antenna, which can handle hugh powers.
Relative unharmed by weather or other influences.
Very forgiving for first time antenna builders !
A true working horse !
Above the freespace azimuth plot at 27,555 MHz
Above the freespace elevation plot at 27,555 MHz
Above the SWR plot for 50 Ohms direct fed.
Above the gain / front to back / front to rear response versus frequency.
For: Super Bowl CB / DXING 11 meter band
Antenna Type: 5el YAGI OWA
Designed by: 19DX348 (1998) -1.01 feb 2025
Boom length: 5,92 Meter
Gain: 9,72 dBI (@27,555 MHz)
FB <30 dB (H field)
FR <22 dB (H field)
Impedance: 50 Ohms, direct fed
SWR below > 1100 KHz.
SWR below > 2000 KHz.
ELEMENT DIMENSIONS:
ELEMENTS DIAMETERs ARE: 3/4 inch and 1/2 inch diameter.
The center part of the element is 1,8288 meter long. And the 1/2 inch for the rest of the element lenght.
(this is what Maco uses)
Do not change diameters, if you need other dimensions, or if you want to scale this antenna to another frequency..
Please feel free to ask !
ELEMENT: DISTANCE LENGHT:
REFLECTOR 0 5,679
RADIATOR 1,010 5,556
DIRECTOR 1 1.412 5,254
DIRECTOR 2 3.320 5,139
DIRECTOR 3 5,920 4,910
FEEDING THE ANTENNA:
The impedance of the antenna is 50 Ohms and direct feed can be applied.
It is a must to always use A RF choke or 1;1 balun for any Yagi.