Antena Fm J Pole

John huggins kx40 covers this question on this page.

Antena fm j pole. Being a half wave antenna it provides a small gain over a. The j pole antenna is an end fed omnidirectional half wave antenna that is matched to the feedline by a quarter wave parallel transmission line stub of lecher system form. In both my models i feed the quarter wave stub with a folded balun aka pawsey stub with orientation perpendicular to the antenna such that any small radiation from the feed won t add to the polarization shown in the graph below. Antena super j pole bisa untuk dual band vhf dan uhf.

This antenna put my 1 4 fm gp antenna to shame am telling you. It is likely that any real world tests that show the slim jim to have better low angle. Model sederhana tidak ribet tetapi memiliki pancaran rf yang bagus tidak kalah dengan antena antena vertikal lain yang sudah banyak dikenal. You should get good results with the choke within 3 or 4 inches of the feedpoint on.

Let s have a look at an elevation cut of the traditional j pole and the 2bcx slim jim antennas note the open j stub faces left for both antennas. Simulation and common sense suggests that they are practically identical. Alex my pole is tuned for 90 mhz bbc radio 3 who still broadcast quality classical programming. Resources listed under j pole antenna for 50 mhz category belongs to 6m main collection and get reviewed and rated by amateur radio operators.

Rick what about a slim jim. Slim jim vs j pole. Antenna j pole untuk televisi setelah menerima beberapa pertanyaan seputar antenna tv tipe j pole dan bazooka yang kebanyakan merasa sulit membuatnya saya coba buatkan. 5 star rating in the making.

My radio station is located below the terrain well surrounding by hills and the j pole antenna give me a stronger signal out on the same watts i use it with my gp antenna. Matching to the feed line is achieved by sliding the connection of the feedline back and forth along the stub until an impedance match is obtained. For 2 meters the coil is 4 turns of coax at 5 inches in diameter. That should just about fit indoors.

Antena ini sudah banyak dikenal dan sangat populer di kalangan breaker negara paman sam amerika. There are many rumours on the internet claiming that the slim jim has better performance than the j pole. Classic fm is up at around 100 mhz and is also pretty good but many more ads. This video shows roof mount coax balun and demonstrates the solid.

Home made j pole antennas for six meter band 50 mhz category is a curation of 14 web resources on j pole antenna for 6 meters j pole antenna for your packet radio station j poles.