The Homebrew Slim Jim Antenna Gain
I’ve been searching for information regarding the radiation angle and the gain of slim jim antenna, but found none of it. So I decided to build the model of the antenna inside the ever useful MMANA-GAL software to get the information I needed myself.
From what I can surmise, the slim jim has a slightly lower radiation angle than vertical dipole antenna and is easier to mount, thus it is suitable to use for point-to-point communication VHF-UHF operation. It has a gain of about 2.8dBi-3.2dBi in free space and 4.8-5.8dBi when mounted at about 30feet from the ground. Here’s the result of MMANA-GAL :
Copy from :Slim Jim 9w2wtf
My Homebrew 2 meter VHF Antennas
Ham Radio, Photos and Travels April 7th, 2008
Here are the photos of my homebrew 2 meter VHF antennas. One is 6 element OWA yagi and another is a 2 meter Slim Jim for omnidirectional operation
OWA Yagi 6 element
Slim Jim antenna
OWA Yagi 6 element
The homebrew slim jim antenna was previously featured on my blog as well as its plan. The OWA Yagi 6 element antenna plan can be obtained from this post : 6 Element OWA Yagi Antenna for 2 Meter band plan
Dalam sempit yang terhimpit,dalam mencapai yang digapai,ku melilit tak membelit,ku melangkah tak memangkah, dan dalam diam yang membingit,ku terus yakini Allah jualah pemberi rezeki.
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