Dual band copper j pole

Author: kajc

August undefined, 2024

WebOther very good "J" antenna designs published in 73 Magazine have been; Copper Cactus (2m) J-Pole by KE7AX, February, 1992. 220 Super J-Pole Antenna by KA0NAN, May … WebSilvercreek Amateur Radio Association

FAQ - KB9VBR Antennas

Web2m/70cm Dual Band J-Pole by KK4ICE . If you have any questions about this project, contact [email protected]. (Step-by-step instructions with photos can be seen below, following the project description and safety … hhgguj

Homemade 2M/440 J-Pole for $35 – KK4ICE

WebHomebrewing the J-Pole Dual Band Antenna. To feed the radiator I used a special panel connector. I disassembled the central pin and soldered it to the radiating element made of 8 mm diameter copper pipe, which was then reassembled in the connector, insulating the initial part for a few centimetres using a piece of nylon pipe. Webthat of twin lead. The velocity factor of copper wire is about 0.95, so the 1/2-wave radiator section should be 38-3/8 inches long. Q: Harvey Zion, KI7EG, asks, “One of our local … WebAug 7, 2015 · A collection of 9 easy to build J Pole antenna projects for VHF UHF and also HF News. Top Amateur Radio Websites – Issue 2314. Top Amateur Radio Websites – Issue 2313 ... An Easy Dual-Band … hhgggu

J-pole-antenne - Wikipedia, den frie encyklopædi

2 Meter Slim Jim Antenna - KB9VBR Antennas

WebDon Murray W9VE Building a Dual-Band Antenna Mentorfest 10/23/04 7 Impedances along J-Pole Matching Stub (This part does the work of radiating) (This part does the work of … WebAug 25, 2024 · The SIMPLE 2m Copper ‘J’ Antenna ↩. Dale Kubichek, N6JSX. The ‘PORTABLE’ or ‘Base’ 2m/70cm Copper-pipe “J” ↩ ↩ 2. KM4SQS. DUAL-BAND COPPER PIPE J-POLE: IT’S MAGIC! ↩. At the time of writing. ↩ ↩ 2. Note: the photoed (preliminary) test was performed without the antenna mounted. ↩ ezekiel 21-22 commentaryWebEn J-pole-antenne også kendt som en J-antenne er en radioantenne, som er en transducer, som kan sende og modtage radiobølger.. En forgænger til J-pole-antennen blev opfundet af Hans Beggerow i 1909 til brug i Zeppeliner luftskibe. J-pole antennen hang efter luftskibet og J-pole-antennen udgøres af et enkelt element; en 1/2-bølgelængde lang … ezekiel 21 19

"Web2 Meter Slim Jim Antenna. $ 58.00 – $ 62.00. There are times when you may need more gain than the standard J-Pole antenna. With twice the gain of a standard J-Pole antenna, the 2 meter Slim Jim antenna is a J-Pole on steroids! The Slim is an end-fed folded dipole antenna that has a gain of 6 dbi and a nice low RF take off angle. " - Dual band copper j pole

Dual band copper j pole

How to Build a Dual-Band Antenna for 2M/70cm

WebJul 9, 2016 · Jul 9, 2016. 34456. We already published in the 9 J-pole-antenna-projects some samples of copper J-Pole antennas. Here a collection of links to make you own dual band VHF UHF copper cactus … WebThe J-pole antenna, more properly known as the J antenna, is a vertical omnidirectional transmitting antenna used in the shortwave frequency bands.It was invented by Hans …

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WebHere is a step-by-step to make a portable (or base) 3/4 inch copper-pipe "J" that breaks down into four (~24" long) pieces for easy transporting. This design uses a Bungie-cord … WebAug 27, 2024 · In the J146/440 antenna, on the right: For 2m, the leftmost and rightmost element form the J-pole, and the center element is too short to matter very much. (It probably adds some inductance, which could explain why the left element seems a little shorter than it should be for 2m). For 70cm, the center and leftmost element form the J …

Web2 meter & 70cm J pole Dual Band Collapsible Copper J-Pole Antenna FREE SHIPPING. $40.00. Free shipping. 3,350 sold. Premium KB9VBR J-Pole Base Antenna 2 meter … WebMar 28, 2024 · With a 50 foot length of RG8, and the antenna 20 feet in the air, SWR was a respectable 1.13:1 for the 147.780 MHz input frequency, and 1.01:1 for the 449.650 MHz input frequency. I was so pleased with my results that I purchased enough materials to construct another J-Pole for portable use.

WebHomebrew Dual-Band Copper J-Pole - Success! As a quick weekend project, I decided to make a pair of Dual-Band Copper J-Pole antennas for my Baofeng UV-82HP handheld (for 2 different QTH's). They went together pretty easy, and then were zip-tied to a spare PA speaker stand I had laying around to get the tip of the 2m element about 15' in the air. http://pontifications.hardakers.net/amateur-radio/2m-440-copper-pipe-super-j-pole/

WebMar 31, 2024 · Find many great new & used options and get the best deals for 2 meter & 70cm J pole Dual Band Collapsible Copper J-Pole Antenna FREE SHIPPING at the …

Webthat of twin lead. The velocity factor of copper wire is about 0.95, so the 1/2-wave radiator section should be 38-3/8 inches long. Q: Harvey Zion, KI7EG, asks, “One of our local club members!a fellow with a General license!wants to provide a gateway from our VHF packet network to the 20-meter packet subband. What if a Technician on 2 meters ... ezekiel 21 14Web2 days ago · 462 MHz Land Mobile (GMRS) J-Pole Antenna $ 30.00 – $ 34.00; Aviation (Airband) 118 – 128 MHz J-Pole Antenna $ 51.00 – $ 55.00; NOAA Weather / Railroad Band 160 – 162 Mhz J-Pole Antenna $ 46.00 – $ 50.00; Snap-on Ferrite Beads 11mm (set of 3) $ 9.00; I'm on a mission to inspire and educate the amateur radio community. hh //gg.gg/scotiabankWebMSRP: 29. This is the original KB9VBR all copper 2 meter J-Pole antenna. Ruggedly constructed one piece design, this antenna will last practically forever. The specs for the two meter version are as follows: Overall length 69 inches, radiator 58 inches, matching stub 19 inches. An S0-239 connector is soldered on at the point of lowest SWR. ezekiel 21 10 kjv