w8io

The W8IO Antenna Site - Loggi - 28-7

(updated 28 Feb 2016)


10 Meter 7 Element Loggi
Here is a 7 element Loggi for the 10 meter Amateur band.  After a quick look at available large commercial 10 meter Yagis, I chose the M2 10M7DX Yagi and Force-12 28 MHz OP-DES 6 element as my "standards" to compare to. The plots and specifications are shown below.


Electrical SpecificationLoggi-28-7F12-28-DES-6Loggi-28-8M2 10M7DX
Frequency Range (MHz)28.0 - 28.928.0 - 29.028.0 - 29.328.0 - 29.0
Peak Gain - Free Space (dBi)11.1211.0111.6912.4
Typical Front to Back (dB)3031.52325
Max Front to Rear (dB)25.731.522.6-
Typ E-plane Beamwidth (degrees)5051.04843
Typ H-plane Beamwidth (degrees)6365.65950
Maximum VSWR2.01.22.01.2
Boom Length (feet)2831.2531.8545
Type of antennaLoggiYagiLoggiYagi
NEC2 fileLoggi-28-7-Loggi-28-8-













Comments are welcome!

contact Roger: email to 

rgcox2 (at) gmail.com

Roger Cox W8IO - Spring Lake, MI