Copper Cactus multiband J-Pole antenna (by info) 铜制仙人掌多波段J-Pole天线 Easy Jpole Building Easy home brew 2 meter copper jpole antenna build - under 20 bucks - Hits repeaters 45 miles away. Parts used bought at home depot build time 1 hour.(by K0BET) 简单自制2米铜jpole天线——...
双线J极子天线的制作和测试 J极子(J-Pole)天线由一个1/2波发射元(右图A部分)和一个1/4波驱动匹配器(右图B部分)构成,它等价于一个从末端驱动的偶极天线,因其导体呈J型,故称为J极子。右图是用300欧姆电视天线扁馈线制作的J极子天线(适用于30W以下,简称双线J极子天线)。 双线J极子天线有容易制作、便于携...
The j-pole antenna is basically an end fed half wave dipole that uses a 1/4 wave shorted matching stub as an impedance transformer. The j-pole antenna will yield slightly less than 3 DB of gain omnidirectionally. The material I chose to build the j-pole antenna was 3/4 inch copper pi...
A J-Pole antenna disclosed including: shunt segment extending out of the plane of the J-Pole antenna. A shunt segment extending out of the plane of the J-pole antenna aids in attaching the antenna to a connector and allowing for a reduction in the size of the antenna and connector. The...
A J-Pole antenna disclosed including: shunt segment extending out of the plane of the J-Pole antenna. A shunt segment extending out of the plane of the J-pole antenna aids in attaching the antenna to a connector and allowing for a reduction in the size of the antenna and connector. The...
I’ve constructed a 144/440 Dual band Open Stub J-Pole Antenna. Assembled Open Stub J-Pole I saw the plans for this on the internet (link to plans) by Allen Lowe (N0IMW). Since I had a Metal Fabrication background, I thought this would be an easy build. ...
This calculator can be used to design a Slim Jim or a J Pole antenna. The Slim Jim, designed by the late Fred Judd, G2BCX, can be a great portable 'roll up' antenna, if made out of 300Ω or 450Ω ladder line / twin feeder. Add a loop of string to the top, and hang it...
A J-Pole antenna disclosed including: shunt segment extending out of the plane of the J-Pole antenna. A shunt segment extending out of the plane of the J-pole antenna aids in attaching the antenna to a connector and allowing for a reduction in the size of the antenna and connector. The...
Buy Universal Point to Point Wireless Bridge Pole Mount Bracket,J Pole Mount for Antenna and Outdoor Access Point,Pole and Wall-Mounted Mount for Outdoor Access Antenna Tp-Link and starlink 4-Pack with fast shipping and top-rated customer service. Newegg
2m/70cm Dual Band J-Pole by KK4ICE If you have any questions about this project, contact KK4ICE@ARRL.NET. (Step-by-step instructions with photos can be seen below, following the project description and safety disclaimer.) This is an excellent performing J-Pole type antenna, constructed fro...