Web11 de abr. de 2024 · To my surprise this project did work. With my 12 inch slot fed at half point, I received frequencies a good distance away from my shack. Those that live in a … Web15 de dez. de 2015 · the feedpoint impedance is different. The impedance of the slot antenna ( Z S) is related to the equivalent dipole ( Z D) by: Z S Z D = η 2 4. where η is the impedance of free space, about 120πΩ. So if the impedance of a long, thin, half-wave dipole is about 72Ω, then a long, thin slot has an impedance of about: ( 120 π Ω) 2 4 ⋅ 72 Ω ...
How to Build Several Easy Antennas for Amateur Radio
WebIn this video I take you through the steps of making the Dr. Ed Fong dual band J-Pole antenna. I also build the single band 2 meter J-Pole antenna. After tes... Web28 de ago. de 2024 · How high should a dipole antenna be? Slot Antenna; My 2024 HF Radio Portable Field Kit; HF Portable-Choosing the right antenna; How to build an inverted L for low bands. Making open wire feed line; 2 element beam for 20 meters from gw0jxm; DIY Portable Discone Antenna; 49:1 End Fed Half Wave Multi-Band Antenna; New 160 … evar orbus and his galactic jizz-wailers
How does a slot antenna work? - Amateur Radio Stack Exchange
Web17 de out. de 2024 · as a TV satellite dish. Slot antennas are familiar in the commercial radio world. They’re common in TV broadcasting, the skin of aircraft, and in radar, … WebWouldn’t that compromise a 2 meter antenna? Finally it struck me, don’t fight the metal; take advantage of it. Cut a “slot” antenna into the TV dish’s reflector. A slot antenna is a narrow rectangular opening in a large conductive surface, such as a TV satellite dish. Slot antennas are familiar in the commercial radio world, but not ... Web25 de fev. de 2016 · Thanks to James Sanders (AG6IF), you can convert that unneeded or extra satellite dish into something more useful without incurring the ire of noisy neighbors--namely, a totally disguised antenna for VHF/UHF antenna. Jim cut a 40 inch/110.60 cm slot within a parabolic dish fed with a SO-239 jumper about 4.5 inches/11.43 cm from … eva roither