j pole pvc pipe antenna in luxembourg Despriction

450 Ohm 2 m / 70 cm Dual Band J-Pole Antenna

The DBJ-1 called for mounting the antenna inside of 3/4" 200 psi PVC pipe which has a thinner wall thickness than Schedule 40 PVC. While I've had good results mounting twin lead antennas on the outside of Schedule 40 PVC pipe, mounting them inside of it has been a problem, most likely due to the RF attenuation and interaction with the thicker j pole pvc pipe antenna in luxembourg6 Meter Homemade J-Pole Antenna - hamuniverse6 Meter Homemade J-Pole Antenna By KK4BCV On the air, looking for signals! The 6 meter repeater we use in my neck of the woods has a receive frequency of 53.110Mhz and a transmit frequency of 52.110Mhz. This antenna that I built according to these dimensions seems to be performing quite well.

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luxembourg6 Meter Homemade J-Pole Antenna - hamuniverse6 Meter Homemade J-Pole Antenna By KK4BCV On the air, looking for signals! The 6 meter repeater we use in my neck of the woods has a receive frequency of 53.110Mhz and a transmit frequency of 52.110Mhz. This antenna that I built according to these dimensions seems to be performing quite well.

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luxembourgBuild the Slim JIM Antenna

the horizon with a slight elongation, hence the claimed horizontal gain of 6dB over the J-Pole. The vertical radiation pattern of the Slim JIM compared to the J-Pole is shown in Fig. 3. The name Slim JIM was derived from the J-Pole but improved by the developer of the antenna.

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luxembourgExplore furtherN4KGL - RaDAR 10 Meter J Polen4kglfoThe J Pole Antenna - Build one for the HF Bands - 17, 15 j pole pvc pipe antenna in luxembourghamuniverse/jpole17151210meterRecommended to you based on what's popular the SIMPLE 2m/440 Copper pipe J - IW5EDIcorner hat coat rack from a copper pipe J. The "J" offers the foundation for a stealth antenna by placing the antenna in PVC with an angled mounting box - the antenna can look like a gas/sewer breather pipe on the roof of CCR restricted house. NOTE PVC/ABS/plastic will affect the Js VSWR.

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luxembourgImages of J Pole Pvc Pipe Antenna in Luxembourg imagesEd Fong J-Pole Antennas - Dual Band, 220 and Roll-up 4 variations of this antenna 144/440 J-pole that fits in a PVC pipe. 220 J-pole that fits in a PVC pipe. 144/440 roll-up J-pole that can be hung from multiple locations and comes with several connectors. GMRS Version covers the 462-467MHz band and comes ready to install in the same PVC pipe used for the dual band version.

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luxembourgJ POLE ANTENNA DESIGN CALCULATOR by K4ABT

Inside (spacing) dimensions are metal to metal measurements, NOTcenter to center. On most of the J Pole designs out there, a choke should be used as close to the feedpoint of the antenna as possible to help prevent rf on the feedline and creating difficulty with SWR readings. For 2 meters, the coil is 4 turns of coax at 5 inches in diameter.

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luxembourgSome results are removed in response to a notice of local law requirement. For more information, please see here.A 10-Meter J-PoleThe J-pole is not a magic antenna, but it is a useful addition to the array of verticals at our disposal. Expect it to perform like any other vertical dipole at the same top height. But if you need a vertical and want to feed it at the base, the J-pole may be a good candidate for the job.

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luxembourgThe Original Ed Fong Dual Band VHF/UHF 70cm/2m J-pole j pole pvc pipe antenna in luxembourgSupporting structures can be anything from PVC pipe to wood, including temporary lashups affixed to your home, shack, or garage. In this video, we see a near commercial grade J-Pole antenna based on a design from Silicon Valley engineer Ed Fong. The fully-encased antenna is lightweight, portable, and adequate for most field and home operations.

A 10-Meter J-Pole

Ideally, a J-pole is a vertical dipole set above a quarter-wavelength matching section composed of the same materials as the antenna. The end of a dipole shows a very high impedance, unsuited for coax feedline. However, a quarter-wavelength of parallel feedline can A 6 Meter Stealth AntennaHam License + HOA = Trouble 2009 Moved to the area With expired ham license 2013 Re-licensed as AC8NE 2013 Read the HOA agreement NO ANTENNAS ALLOWED except for TV 2013 40-10 M dipole and 2M J-pole in attic Situation OK but no DXCC etc. 2015 HF antenna stopped workingBuild the Slim JIM Antennathe horizon with a slight elongation, hence the claimed horizontal gain of 6dB over the J-Pole. The vertical radiation pattern of the Slim JIM compared to the J-Pole is shown in Fig. 3. The name Slim JIM was derived from the J-Pole but improved by the developer of the antenna.

Copper Pipe J-Pole Antennas - Conejo Valley Amateur

for 1/2 inch copper pipe J-Pole antennas. We will use this wavelength equation for all of our calculations. For a 2 meter f = 146 MHz J-Pole antenna, the 1/2 wavelength radiating section (Section A) is equal to A = 0.5 L = 0.5 (11244 / 146) = 38.5 inches and Ed Fong Dual Band Base Station VHF/UHF J-Pole K7KEZThe proceeds of this antenna go to my graduate students. This antenna is complete with exception of the 5 feet of ¾ inch Class 200 PVC pipe needed for the antenna. Individual shipping of the 5 ft antenna is $14 so we rather you go to Lowes (stock # 23990) or Menard (SKU #6899684) and buy the PVC pipe Ed Fong J-Pole Antennas - Dual Band, 220 and Roll-up 4 variations of this antenna 144/440 J-pole that fits in a PVC pipe. 220 J-pole that fits in a PVC pipe. 144/440 roll-up J-pole that can be hung from multiple locations and comes with several connectors. GMRS Version covers the 462-467MHz band and comes ready to install in the same PVC pipe used for the dual band version.

Ed Fong PVC Dual Band J-Pole - AR15.COM

Feb 18, 2012It is a standard VHF j-pole that resonates at UHF (all antennas do that). This antenna is complete with exception of the 5 feet of ¾ inch Class 200 PVC pipe needed for the antenna. Individual shipping of the 5 ft antenna is $10 so we rather you go to Lowes (stock # 23990) or Orchard Supply (stock # 648-5908) and buy the PVC pipe for about $1.File Size 161KBPage Count 11

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luxembourgJ-Pole Antenna - Should I ground it?Sep 24, 2018The J-Pole antenna, more properly known as the J antenna , is one of the most popular antennas for 2m vertical use in the amateur radio ranks. It has been around for many decades . I have covered J-Poles quite a bit on this site .J-Pole Antenna - Should I ground it?Sep 24, 2018The J-Pole antenna, more properly known as the J antenna , is one of the most popular antennas for 2m vertical use in the amateur radio ranks. It has been around for many decades . I have covered J-Poles quite a bit on this site .

Mounting ideas for VHF/UHF Antennas - KB9VBR Antennas

Aug 18, 2014A KB9VBR J-Pole installed in the N0JY Attic Antenna Farm Space permitting, the attic is an excellent location for an antenna. Attic antennas have a couple of benefits compared to mounting an antenna outdoors primarily it allow you to be totally stealth, which is important if you live in a neighborhood that restricts outdoor antennas.PVC Flagpole Construction - K4VRCPVC Flagpole Construction Push the solid #10 and the attached coax up the pipe. You may need to run a fish line to do this. Tie the antenna lead (24 of 14 stranded wire) on to twine and when the antenna is at the top of the flag pole, pull the antenna lead out of the hole.PVC J-Pole Antennae for 2m QRZ ForumsFeb 23, 2009I actually made a j-pole out of 300ohm wire and put it on a dowel in PVC pipe. It seemed to work ok, but was narrow banded. Given the cost of copper pipe these days, I would recommend using galvanized conduit (1/2" or so). My best performing 2m antenna (aside from a beam) is a J-Pole

Portable HF vertical J-Pole antennas DD5LP / G8GLM j pole pvc pipe antenna in luxembourg

The Velocity factor, which is the main thing along with frequency that decides the length of the coax-cable in the antenna was the same as the RG-58 (0.66) or so I thought, then I looked round on the Internet to find that the RG-174 cable with foam insulation has a different velocity factor of 0.753 instead of the PVC version which has 0.66.Slim Jim / J Pole Antenna Calculator - M0UKDThis 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 300 or 450 ladder line / twin feeder. j pole pvc pipe antenna in luxembourg (PVC pipe etc), or taped up and hung freely is adequate. Five turns, 6cm diameter for 70MHz. I have also used a j pole pvc pipe antenna in luxembourgSome results are removed in response to a notice of local law requirement. For more information, please see here.

Some results are removed in response to a notice of local law requirement. For more information, please see here.Portable HF vertical J-Pole antennas DD5LP / G8GLM j pole pvc pipe antenna in luxembourg

The Velocity factor, which is the main thing along with frequency that decides the length of the coax-cable in the antenna was the same as the RG-58 (0.66) or so I thought, then I looked round on the Internet to find that the RG-174 cable with foam insulation has a different velocity factor of 0.753 instead of the PVC Stealthy / Covert Antennas N6CCA ground stake is for lightning protection, not for RF. Id add a lightning arrestor at the antenna or on the feedline if you are in lightning country. For a dual-band (2 m and 70 cm) J-pole, Im a big fan of the antennas designed by Ed Fong, WB6IQN. The base antennas are inside a PVC pipe, so they look like a roof vent.The Original Ed Fong Dual Band VHF/UHF 70cm/2m J-pole j pole pvc pipe antenna in luxembourgSupporting structures can be anything from PVC pipe to wood, including temporary lashups affixed to your home, shack, or garage. In this video, we see a near commercial grade J-Pole antenna based on a design from Silicon Valley engineer Ed Fong. The fully-encased antenna is lightweight, portable, and adequate for most field and home operations.

Using pvc for antenna mast j pole pvc pipe antenna in luxembourg - RadioReference Forums

Sep 23, 2017I used PVC built only on the outside,Bought 3 Inch Pvc, buried it 2 feet in the ground,poured concrete to secure it,than put the antenna pole up about 18 feet inside the pvc,drilled a hole thru PVC and Metal Pipe and secured it with two nuts and bolts one at the bottom and one at the top,added 12 feet antenna making the total length about 25 j pole pvc pipe antenna in luxembourgV/UHF Dual Band J-Pole AntennaDBJ-1 J-Pole Antenna (before housed in PVC tubing) Back in June 2015, I think, I wrote about an odd-ball J-Pole antenna I was using for 2m and 440 at the base station here. It had an odd arrangement for two separate matching section for 2m and 440, which did not seem so theoretically sound.eHam.netI purchased the 2 meter/440 version. Ed sent me the wire antenna and PVC caps with coax connector on one end cap to go on the bottom of the PVC pipe. . I go to Home Depot, spend $1.99 on 5 feet of the 200 psi PVC pipe. I drive home, insert the wire into the PVC pipe. Cap off the ends. Done. Insanely simple.

the SIMPLE 2m Copper pipe J - byethost5

Other 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 1996. 440 Super J-Pole Antenna by KA0NAN, April 1996. Simple J-Type 10m Vertical by W6IOJ, Sept. 1995. Copper Dual-Band Super J-Pole Antenna by KA0NAN, April 1993.the SIMPLE 2m/440 Copper pipe J - IW5EDIOther 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 1996. 440 Super J-Pole Antenna by KA0NAN, April 1996. Simple J-Type 10m Vertical by W6IOJ, Sept. 1995. Copper Dual-Band Super J-Pole Antenna by KA0NAN, April 1993.