Cut a 1 inch square hole in the riser and on the bottom section of the copper pipe (the one without a fitting on one end) to accept the coax connection. For a great photo of the H frame base, see the most interesting ham website of N0LX n0lx - click in
kl7jr 5 band pipe vertical. kl7jr 5 band 1/2 wave on 20 vertical. kl7jr hf copper portable vertical. kl7jr dual band vertical hf wire. 40 thru 10 wire vertical. 40 meter vertical – zl1alz. kl7jr vertical dipole and a novel matching method. 10 meter “super scanner” hf multiband vertical convert that old cb antenna. 20 meter portable ground ...
Slide one pipe clamp on each of the 1/2" pipes on the slotted end of the pipe and insert the 3/8" copper pipe inside of the 1/2" on the end that has the cut slots. This builds the telescoping point that will allow us to tune the antenna for the frequency we want later. For now just make them equal lengths and tighten down the hose clamps until the sections are secure and will not slide on ...
03.07.2012 However, insure you use a non-metalic lacquer if you want the full benefit of a copper antenna. My J Pole provided more than 6db gain of power input vers ERP. The omnidirectional doughnut had about a 40 degree (20 up 20 down) lobe angle and out preforms anything I have compared for commercial sold vertical base antennas. KK6IRZ
vertical antenna mounted on the ground. The conductor size is relatively unimportant as mentioned before: #12 to #22 copper wire is suitable. • If you install only 16 radials they need not be very long - 0.1 lambda is sufficient. • If you have the wire, the space and the patience to
17.06.2020 I have built a quarter-wave vertical for 20m using ½” copper pipe and DX Engineering 20m,15m,10m pre-cut radials. I am using a base made from PVC. The bottom of the antenna threads into the PVC base which puts the feedpoint about 2 feet above the ground. Sections are made out of 5-foot threaded pipe sections so I can thread and unthread sections to get 20m, 15m, and 10m
MY BIG VERTICAL ANTENNA PROJECT This memorandum describes my Fall antenna project, specifically a DX-Engineering, Model DXE-MBVE- 1, 43 foot mono pole vertical antenna. Restraints Imposed by Location and Other Factors: I have a rather small suburban back yard, 100 feet wide (N-S) and 55 feet deep (E-W). I have only one really useful wire-antenna-supporting tree located in the
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.
03.07.2012 However, insure you use a non-metalic lacquer if you want the full benefit of a copper antenna. My J Pole provided more than 6db gain of power input vers ERP. The omnidirectional doughnut had about a 40 degree (20 up 20 down) lobe angle and out preforms anything I have compared for commercial sold vertical base antennas. KK6IRZ
Copper Plumbing Pipe Dipole Antenna for 2 Meters by W4ZT . During the late 1980's I worked up the design for these dipoles during a vacation week at home. I was looking for an antenna design for a repeater antenna. The design I wanted was something that was grounded to help prevent static buildup problems, was easy to build and could be duplicated over and over without redesign. These dipoles ...
17.06.2020 I have built a quarter-wave vertical for 20m using ½” copper pipe and DX Engineering 20m,15m,10m pre-cut radials. I am using a base made from PVC. The bottom of the antenna threads into the PVC base which puts the feedpoint about 2 feet above the ground. Sections are made out of 5-foot threaded pipe sections so I can thread and unthread sections to get 20m, 15m, and 10m
09.01.2011 Yes you could make the antenna out of pipe, but it would be too heavy and too long, forget a 40 meter antenna made of pipe, your talking 64 feet. Copper pipe gets heavy when it all adds up. As the others have said it will be easy to see and an eyesore. No problems with impedance as long as it is cut for a 1-1 SWR. Go with a wire dipole made of 16 gauge wire. They are hard too see and easy to ...
vertical antenna mounted on the ground. The conductor size is relatively unimportant as mentioned before: #12 to #22 copper wire is suitable. • If you install only 16 radials they need not be very long - 0.1 lambda is sufficient. • If you have the wire, the space and the patience to
G8JNJ Broadband HF Vertical Antenna - Requires no tuner - copied by many companies. The following notes show the design and construction of a Broadband HF Vertical antenna which does not require a tuner, and which is capable of providing moderate performance on all bands from 7MHz to 28MHz (reduced performance from 3.5MHz to 51MHz). It follows ...
Figure 5 - Dual band J-pole with a 220 MHz copper pipe J-pole attached at the bottom. With the lead -in coax, total length approaches 8ft. Not practical for implementation although triband operation is achieved. Attach both RG174 cables for single fee. 49” 36” Prototype was made of 1/2 inch copper pipe. Figure 6 - Dual band J-pole with a 220 MHz horizontal dipole. Splice and short together ...
Based on your idea, I built a wire vertical doublet on a 12m fiberglass telescopic mast, 600-Ω fed, 4:1 current balun (Balun Designs 4124 model), 2 meters of low loss coaxial, to my Elecraft K3. Very interesting results. DX is easy to perform even on qrp. When reduced space and no possibility to dispatch a good ground counterpoise this is the antenna of choice. Thank you. Bst 73’s. Philippe ...
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.
03.07.2012 However, insure you use a non-metalic lacquer if you want the full benefit of a copper antenna. My J Pole provided more than 6db gain of power input vers ERP. The omnidirectional doughnut had about a 40 degree (20 up 20 down) lobe angle and out preforms anything I have compared for commercial sold vertical base antennas. KK6IRZ
Figure 5 - Dual band J-pole with a 220 MHz copper pipe J-pole attached at the bottom. With the lead -in coax, total length approaches 8ft. Not practical for implementation although triband operation is achieved. Attach both RG174 cables for single fee. 49” 36” Prototype was made of 1/2 inch copper pipe. Figure 6 - Dual band J-pole with a 220 MHz horizontal dipole. Splice and short together ...
24.02.2008 The top of the 2" PVC I found a PVC that allowed a 3/4" threaded copper fitting to be screwed to the top and then used 3/4" copper pipe as the base for the antenna. I used another PVC collar to insulate the copper base from the top of the antenna mount. Used 3/4" and 1/2" copper pipe to finish the vertical element (not cheap, but here in Iowa aluminum pipe is almost nonexistant).
Independent Vertical Antenna KF2YN takes the vertical to new heights with this folded design that doesn’t require a counterpoise. ally in half, as shown in Figure 1. By erecting this just above ground level the ground currents are reduced dramatically over those of a quarter-wave ground-mounted monopole. The H-plane radia-tion pattern for this antenna is virtually omnidirectional. As shown ...
04.11.2021 Copper Cactus Dual Band J-Pole Antenna Plans - N7QVC's Ham Shack Radioamador The simple 144/440 copper pipe J - Resource Detail - The DXZone 2m Portable Slim Jim Antenna – KM4NMP . 6 Meter J-Pole Amateur Radio Antenna - KB9VBR Antennas 6 Meter J-Pole Amateur Radio Antenna - KB9VBR Antennas . Dual-Band Copper Pipe J-Pole: it's MAGIC!
20.01.2013 20m antenna is simple and cheap to make, and has a performance that matches commercial antennas but at cost considerably lower. The design was purposely based on a telescoping fibre glass fishing rod as this allows it to be easily stowed away in the car. Graphics by G8ODE sept 2008 iss 1.3 20m Fibreglass Vertical Mobile Antenna -EA5AVL
After a few talked he gave us an article about vertical antenna that he took from the internet. He has tried and have good result for HF all bands and no need to use tuner. I'm very excited to try it but I have to find something like ferrite core, stainless steel cable, fishing pole and. PVC pipe. All ot these things are easy to find it but the ferrite core is hard to get it because this is ...
Based on your idea, I built a wire vertical doublet on a 12m fiberglass telescopic mast, 600-Ω fed, 4:1 current balun (Balun Designs 4124 model), 2 meters of low loss coaxial, to my Elecraft K3. Very interesting results. DX is easy to perform even on qrp. When reduced space and no possibility to dispatch a good ground counterpoise this is the antenna of choice. Thank you. Bst 73’s. Philippe ...
Vertical Antenna Loading Coils-- see LOADCOIL * Design short vertical antenna and loading coil. From Reg, G4FGQ Vertical Antenna Phasing Arrays - From Butternut Antennas Vertical Antennas Ground Screens-- By N6RK VHF Antennas - Various -- From The ARRL W5QJR Antenna Via Antennex W5GI Mystery Antenna Kit-- Kit is at the bottom of the FAQ page, or homebrew info on main page Water Antennas ...
metal, vertical dipole array. The antenna that emerged from these modeling sessions consists of four vertical dipoles, each centered on a 60 inch vertical section. While the array can be built using a variety of methods and materials, a copper pipe version is presented here. The array is offset3, with all elements and maximum gain on the same
03.07.2012 However, insure you use a non-metalic lacquer if you want the full benefit of a copper antenna. My J Pole provided more than 6db gain of power input vers ERP. The omnidirectional doughnut had about a 40 degree (20 up 20 down) lobe angle and out preforms anything I have compared for commercial sold vertical base antennas. KK6IRZ
04.11.2021 Download Images Library Photos and Pictures. 6 meter j-pole antenna copper pipe - YouTube J Pole Antenna for 2 Meters - YouTube K0BET Radio Operator Ham Equipment Ham radio, Ham radio antenna, Radio antenna Copper Cactus Dual Band J-Pole Antenna Plans - N7QVC's Ham Shack Radioamador The simple 144/440 copper pipe J - Resource Detail - The DXZone 2m Portable Slim Jim Antenna
29.04.2017 Copper also has a stretch factor that would need to be taken into consideration. Copper is a great product for home antennas, but Stainless Steel Lifeline material is the material of choice for a robust, rugged, HF SSB Vertical Dipole antenna.. Here are Bill's comments regarding the merits of using a Vertical Dipole antenna... To use a dipole antenna, it would either be a single-band tuned ...
Independent Vertical Antenna KF2YN takes the vertical to new heights with this folded design that doesn’t require a counterpoise. ally in half, as shown in Figure 1. By erecting this just above ground level the ground currents are reduced dramatically over those of a quarter-wave ground-mounted monopole. The H-plane radia-tion pattern for this antenna is virtually omnidirectional. As shown ...
A 160M vertical antenna for smaller suburban sites. by ralph klimek VK3ZZC Feb 2011. abstract: a reproducible short vertical antenna for 160m, using a "resonant" top hat using readily available aluminium stock and hardware featuring tilt over erection, a base insulator permitting easy feedpoint matching and total height no exceeding 7 meters. This antenna is suitable for amatuer construction ...
I fine tuned my design using #8 copper wire and used crimp/solder terminals instead of bending the wire ends - looks and works better and the last three pix show the "final", yea right, version for my indoor antenna. I wanted to keep the "footprint" narrower and used four 12 inch by 1/2" aluminum bar stock. The reflector is about 5.25 inches from the driven loops, centered in the middle of the ...
After a few talked he gave us an article about vertical antenna that he took from the internet. He has tried and have good result for HF all bands and no need to use tuner. I'm very excited to try it but I have to find something like ferrite core, stainless steel cable, fishing pole and. PVC pipe. All ot these things are easy to find it but the ferrite core is hard to get it because this is ...
20.01.2013 20m antenna is simple and cheap to make, and has a performance that matches commercial antennas but at cost considerably lower. The design was purposely based on a telescoping fibre glass fishing rod as this allows it to be easily stowed away in the car. Graphics by G8ODE sept 2008 iss 1.3 20m Fibreglass Vertical Mobile Antenna -EA5AVL
16.07.2020 Not much really, you will need a length of plastic pipe, 1.70m long, 41mm in diameter – this is sold in the local hardware stores as 40mm waste pipe but be careful, 40mm is the inside diameter and it is available in either 41mm or 43mm outside diameter – 13.6m of 1.5mm insulated copper wire, some 20mm long cable ties (200 * 3.6) and a 4:1 UNUN (see later for instructions). Effectively ...