This page describes my homebrew 80/40 meter trap vertical. Still trying to get the 80 meters section to resonate in a portion of the cw/sbb. This one is an experiment. Also center loaded antennas have more current below coil for better performance I beleive. Foundation cage -- 11 yards, 4,000 psi. - For 75 m. Rated for 2KW PEP. The antenna covers the 40 meter, 20 meter, and 15 meter amateur/ham radio bands with commonly available materials. 45-49; A Disguised Flagpole Antenna QST May 1993, p. Dipoles need to be half a wavelength long, locating these long. 40m-10m DELTA LOOP ANTENNA - GU3WHN AIM 4170C Antenna RF Analyser results for the GU3WHN 40m Loop The following pages have a GAL-ANA model of the GU3WHN inverted Delta Loop. I wanted high efficiency 40 Meter antenna with low-angle radiation. Now, do I inductively load the antenna on the ground or use a capacitive top hat in the attic? Reading through the ARRL Antenna Book it is clear that capacitive top hat loading is more efficient. GAP Antenna Products is pleased to bring you the Mono GAP. It is a resonant Half wave on 40m (7MHz) therefore also resonant on second, third, and fourth harmonics. My first true DX contact shortly after installing the Titan DX was FT5ZM, Amsterdam Island. Note the resin support blocks for the vertical aluminum share the 1/4-20 hardware with the tripod blocks on the other side. Would like to get all the info I can for this. it: Hf Antennas Homebrew. (+160M at a push. This page describes my homebrew 80/40 meter trap vertical. Over the years there have been a lot of home brew and commercial R7000 "half wave" vertical to get back on the air. What a bad mistake that was! The butternut antenna I once own was a 5 band vertical and work really good considering I did not have any radials down, and did not have the space to put any down. Add to cart. This will cost a fortune. A friend load me his MFJ 989C antenna tuner. This video was uploaded from an Android phone. Built from stainless steel and aluminum hardware to resist corrosion, these rugged traps have a pull strength of over 600 lbs. Its Near-Vertical Incidence Skywave is reflected back toward earth by the 'F' layer of the ionosphere to cover an area roughly 150 to 200 km (100-125 miles) around the antenna. This is be-. A QRPGuys based "random" wire end fed with 29 and 35 ft elements. I have used this to make perhaps 500 contacts on 80 meters and 1000 on 40 meters in 7 months; the furthest being New Zealand on 40 and Moscow on 80 meters, mostly at 500 watts (and all the reports were 599, hi). Mike takes you step-by-step throught the design and. Zantenna = 28 ohms. It was time to start tuning the antenna. Barker & Williamson has been a recognized leader worldwide in the manufacture of the highest quality HF broadband antennas, fiberglass masts, air wound coil stock, and other radio parts for military, government, EOC and commercial use since 1932. Before I describe the details of the design. The Isotron Antenna. - For 75 m. I give a thumbs up to this antenna; I believe I am getting a lower angle of radiation. It’s the best 40 meter vertical I’ve made yet but remember – these only work from about 1,000 miles upwards. For the 10- through 40-meter bands, you will have less than a 2:1 SWR across the entire band. - For 40 m. Resources listed under 40 Meter Antennas category belongs to Antennas main collection, and get reviewed and rated by amateur radio operators. My antennas are a Hustler 5-BTV vertical (homebrew modified to cover 17m and 12m making it a 7-BTV), a home brew 3 band fan dipole for 40- 20-15, a home built Windom inverted "V", a home brewed 6 meter 3 element yagi and a fixed 2 element wire beam for 20 meters, all up about 30 ft. A Home Brew HF Vertical From Copper Pipe by John Reisenauer Jr. This page describes my homebrew 80/40 meter trap vertical. Considering the lousy band conditions at the long bottom of the sunspot cycle, the R7000 proved to be a surprisingly good performer, especially on 40 meters. Built from stainless steel and aluminum hardware to resist corrosion, these rugged traps have a pull strength of over 600 lbs. Big Wires – A 160 / 80 / 40 Meter Multi-band Antenna. A QRPGuys based EFHW inverted vee cut for 40 and covering 40, 20 and 15 meters without a tuner. I also tried a center fed helical vertical dipole design up the full length of the mast. - For 75 m. keep experimenting and have fun. radials and vertical elements. This is an End-Fed Half-Wave (EFHW*) antenna for 40/20/15 and 10m bands. A trap design guide is provided below to aid multiband dipole construction. 2021: Author: okawata. Still trying to get the 80 meters section to resonate in a portion of the cw/sbb. My first true DX contact shortly after installing the Titan DX was FT5ZM, Amsterdam Island. 10m – 40m MonoGAPs. FN33eh [Extra] Simple dipole is the best. A whopping 11422 miles from my QTH. On this web site you will find mostly 11 meter antennas. •20 meters and above or 80 meters and Need to be mounted high enough that the ladder line is vertical for best TV antenna 20 mtr 40 mtr 80 mtr. Handles Up to 1000 Watts PEP. EFHW-4010-1K-Plus™ Multi-Band End Fed Half Wave Antenna. The need for a 40 meter antenna that would perform well and not violate the spirit of the Home Owner's Covenants protecting the aesthetics of the neighborhood was the driving force behind the design of this vertical. I wanted high efficiency 40 Meter antenna with low-angle radiation. have an antenna for the 17- and 12-meter bands. The W8AMZ 40m Vertical Wire Monopole antenna uses just three elements, a vertical driven element and two counterpoise radials, to deliver outstanding. Easy and cheap to make. Before I describe the details of the design. Still trying to get the 80 meters section to resonate in a portion of the cw/sbb. This shortened easy-to-build vertical, with no-radials, is made from surplus military camouflage poles. I love this antenna. The antenna comes in a shipping container 60 X 4 X 4 inches. Home Brew 80/40 Meter Vertical Antenna I once own a butternut antenna and sold it. Must do mobile as HOA rules. antenna project. #4 wavrider, Apr 5, 2013. Big Wires – A 160 / 80 / 40 Meter Multi-band Antenna. A home brew 1 meter loop that is tunable on 40, 30 and 20 meters. The Isotron Antenna. Trap coils are waterproofed and condensers are epoxy-sealed. vertical system for the lower bands 160 - 40 meters? I would like to see info on first putting in 2 verticals then upgrading it to 4 later. Handles Up to 1000 Watts PEP. The 40 meter zepp/doublet will not load up on this band so I built a 17 meter monoband vertical at 35ft tall with 4 raised radials sloping off at 45 degrees around 22ft. My vertical broke the pile in one shout. The DX Engineering 40VE-2 is a fast taper single-band vertical antenna system with a low profile top hat assembly and is slightly less than 25 feet in height. I wanted high efficiency 40 Meter antenna with low-angle radiation. 40 Meter Mini-MOXON Beam Antenna At W7XA. The 25 foot vertical is qualitatively similar to the 43 foot vertical, but at half size, and is designed to provide acceptably efficient operation from 40 meters to 10 meters. Antenna parts:. the oak tree at 3. THE G3XOV JOYSTICK VERTICAL (HF experimental multiband vertical) 75/80 METER VERTICAL – KJ4IIF. The SWR was in the high 2’s on Channel 01 and 20, and 3+ on Channel 40. He emailed me later, “ Your signal was a nice strong 59 “. E(V/m) = Electric field strength in volts per meter (V/m) at a distance (d = 1 meter) from an antenna with unity gain (G=1). Solve Virtually Any Restricted Space Problem - 40 Meter Isotron only 22 inches x 16 inches x 15 inches! Easy, Quick, and Simple Installation. Recently, Ernie and I, along with sev-eral other longtime hams, were rumi-nating about what constituted the archetypal homebrew project — it had to be functional, easy to make, and cost nearly nothing. The overall height of the antenna is approximately 48. Dipoles need to be half a wavelength long, locating these long. Well the only way I've been able to achieve that was. Before I describe the details of the design. This video was uploaded from an Android phone. Louis Vertical-- By Dave Gauding, NF0R DDRR - for 40M -- Directional Discontinuity Ring Radiator Antenna 40M Beam -- From QRZ. The SWR was in the high 2’s on Channel 01 and 20, and 3+ on Channel 40. Note the resin support blocks for the vertical aluminum share the 1/4-20 hardware with the tripod blocks on the other side. have an antenna for the 17- and 12-meter bands. Views: 33319: Published: 11. radials and vertical elements. it: Hf Antenna Homebrew Vertical. A friend load me his MFJ 989C antenna tuner. There are many articles on compact 160 m antennas, but this is not one of them. 40 METER VERTICAL – ZL1ALZ. The tower was installed on 24-Aug-2007. Resources listed under 7 MHz Vertical Antenna plans category belongs to 40M main collection, and get reviewed and rated by amateur radio operators. He emailed me later, “ Your signal was a nice strong 59 “. With that said, go look up the cost of one that is being sold in the magazines and on the web. Big Wires – A 160 / 80 / 40 Meter Multi-band Antenna. The diagonal wires make it partially a vertical antenna with a nice reduction in polarization QSB. antenna project. Made out of aluminum tubing Uses PVC as an insulator Is 32 feet high. Considering the lousy band conditions at the long bottom of the sunspot cycle, the R7000 proved to be a surprisingly good performer, especially on 40 meters. The 25 foot vertical is qualitatively similar to the 43 foot vertical, but at half size, and is designed to provide acceptably efficient operation from 40 meters to 10 meters. 2 mhz will not really effect your antenna. I am trying to figure out how to get another one and get it “portable” for field day (I need to figure out the financial […]. The antenna comes in a shipping container 60 X 4 X 4 inches. This shortened easy-to-build vertical, with no-radials, is made from surplus military camouflage poles. Unlike many END FED antennas on the market, this one does not require the Antenna Tuner to operate. Any insight. They are very well built, using good quality "doorknob" capacitors, and nice airwound low-loss coils. Select the band using the aligator clip (9):- 0 turns = 14 MHz (20 meter band) (VSWR - almost 1:1) 2 turns = 10 MHz (30 meter band) (VSWR - almost 1:1) 6 turns = 7 MHz (40 meter band) (VSWR - about 1. Made out of aluminum tubing Uses PVC as an insulator Is 32 feet high. Thanks for the report Brent. amministrazionediimmobili. Home Brew 80/40 Meter Vertical Antenna I once own a butternut antenna and sold it. DX results due to the antenna‟s omni-directional radiation pattern and extremely low 22 degree take-off angle. Compare this to a regular λ/4 vertical at 62 ft. My antennas are a Hustler 5-BTV vertical (homebrew modified to cover 17m and 12m making it a 7-BTV), a home brew 3 band fan dipole for 40- 20-15, a home built Windom inverted "V", a home brewed 6 meter 3 element yagi and a fixed 2 element wire beam for 20 meters, all up about 30 ft. Gain improves 1 dB (over average gnd). 45-49; A Disguised Flagpole Antenna QST May 1993, p. EFHW-4010-1K-Plus™ Multi-Band End Fed Half Wave Antenna. A whopping 11422 miles from my QTH. My vertical broke the pile in one shout. At heights less than 1/4 λ, the ground begins to act as a "dull", inefficient reflector. Dimension "A" is the height of the antenna from the base to the apex, not the length of each of the vertical wires. E(V/m) = Electric field strength in volts per meter (V/m) at a distance (d = 1 meter) from an antenna with unity gain (G=1). Rated for 2KW PEP. This antenna was designed to provide low angle radiation for good DX performance during the night time hours. He emailed me later, " Your signal was a nice strong 59 ". This antenna just performs. Note that the actual dimen-sions will vary from these. A trap design guide is provided below to aid multiband dipole construction. W2VS traps are available for 80 meters and up in two versions. A Home Brew HF Vertical From Copper Pipe by John Reisenauer Jr. Twenty inches would also work fine for 20 meters as long as you adjust the vertical length of the wires. The diagonal wires make it partially a vertical antenna with a nice reduction in polarization QSB. GAP Antenna Products is pleased to bring you the Mono GAP. This 30 ft vertical wire is the primary radiating element. Antenna parts:. 2 to 1 and direct coax fed. I took my 20 foot short 40 meter vertical and tried using a spiral tuned counterpoise instead of my 24 radials. it: Hf Antenna Homebrew Vertical. Also center loaded antennas have more current below coil for better performance I beleive. 2 mhz will not really effect your antenna. Zantenna = 28 ohms. Optibeam 40/30 yagi on a TiltPlate. This one is an experiment. Foundation cage -- 11 yards, 4,000 psi. (+160M at a push. Solve Virtually Any Restricted Space Problem - 40 Meter Isotron only 22 inches x 16 inches x 15 inches! Easy, Quick, and Simple Installation. E(V/m) = Electric field strength in volts per meter (V/m) at a distance (d = 1 meter) from an antenna with unity gain (G=1). Many thanks to Mike Hannah (W9XAX) for this ultra simple, inexpensive, and efficient vertical antenna. Gain improves 1 dB (over average gnd). Would like to get all the info I can for this. I wanted to be able to operate on 80 meters with limited space, plus 40 meters. Thanks for the report Brent. It was time to start tuning the antenna. Now, do I inductively load the antenna on the ground or use a capacitive top hat in the attic? Reading through the ARRL Antenna Book it is clear that capacitive top hat loading is more efficient. KL7JR VERTICAL DIPOLE And a novel matching method. Zantenna = 28 ohms. There are many articles on compact 160 m antennas, but this is not one of them. This antenna was designed to provide low angle radiation for good DX performance during the night time hours. I want to discuss performance. One can always play tricks with loading to be able to use a physically shorter length of wire. The antenna comes in a shipping container 60 X 4 X 4 inches. But also wire antennas, bobtail curtains, c-pole and hentenna. The 2 el Optibeam antenna for 40/30 Meters is installed on this tower. Note the resin support blocks for the vertical aluminum share the 1/4-20 hardware with the tripod blocks on the other side. Getting it up into the trees is easy, many different ways. May just end up doing 40 / 80 meters only. I built a 80 meter vertical, then put a matching network at the base for 40 meters. Made a fine dummy load. This shortened easy-to-build vertical, with no-radials, is made from surplus military camouflage poles. The vertical antenna is specifically designed for low visibility, great for HOA restricted areas, while providing optimum performance on 40 meters. Handles Up to 1000 Watts PEP. 20 METER PORTABLE GROUND PLANE (From Across the Pond) A J POLE FOR ANY BAND Design a J Pole. Install info Video We ship the Silver Bullet Portable Vertical Base antenna in the US only. I am trying to figure out how to get another one and get it “portable” for field day (I need to figure out the financial […]. Tunes & Performs Without Radials or Antenna Tuners. And there's a bonus: you can use the same approach to use your quarter-wave 40-meter vertical as a 5/8-wave antenna on 17 meters! An Efficient Multiband Vertical for 160 through 20 Meters QST October 1998, pp. GAP Antenna Products is pleased to bring you the Mono GAP. Trap coils are waterproofed and condensers are epoxy-sealed. So I wanted a self-supporting rotatable dipole for best performance on 12/17 meter as well. Rated for 2KW PEP. !!) I have always admired the Butternut vertical antennae. By John Portune W6NBC. A home brew 1 meter loop that is tunable on 40, 30 and 20 meters. In my case, the SWR on channel 40 was greater than on channel 1, so the antenna was considered “LONG” and a reduction of conductor length is what was needed to correct it. Figure 5 – Tube and feed side of portable HF antenna Support Plate. About Antennas Homebrew Hf. vertical antenna projects for the 40 meters band category is a curation of 41 web resources on , Slink-ette antenna, The Hudson antenna, Vertical antenna for 40 and 80m. 40m-10m DELTA LOOP ANTENNA - GU3WHN AIM 4170C Antenna RF Analyser results for the GU3WHN 40m Loop The following pages have a GAL-ANA model of the GU3WHN inverted Delta Loop. Handles Up to 1000 Watts PEP. There are many articles on compact 160 m antennas, but this is not one of them. Feed the antenna with 50 ohm coaxial cable, braid connected to the bracket (5) and the center conductor connected to an aligator clip. Thanks for the report Brent. Barker & Williamson has been a recognized leader worldwide in the manufacture of the highest quality HF broadband antennas, fiberglass masts, air wound coil stock, and other radio parts for military, government, EOC and commercial use since 1932. Twenty inches would also work fine for 20 meters as long as you adjust the vertical length of the wires. Dipoles need to be half a wavelength long, locating these long. Rated for 2KW PEP. 28-31 How. 2021: Author: tsubirai. Dimension "A" is the height of the antenna from the base to the apex, not the length of each of the vertical wires. This 30 ft vertical wire is the primary radiating element. A friend load me his MFJ 989C antenna tuner. - For 40 m. Views: 33319: Published: 11. LMR 600 Coax with N type connectors. Solve Virtually Any Restricted Space Problem - 40 Meter Isotron only 22 inches x 16 inches x 15 inches! Easy, Quick, and Simple Installation. My antennas are a Hustler 5-BTV vertical (homebrew modified to cover 17m and 12m making it a 7-BTV), a home brew 3 band fan dipole for 40- 20-15, a home built Windom inverted "V", a home brewed 6 meter 3 element yagi and a fixed 2 element wire beam for 20 meters, all up about 30 ft. Having had an "HF2" for a while, I decided to see if I could make a homebrew "improved". have an antenna for the 17- and 12-meter bands. Foundation cage -- 11 yards, 4,000 psi. 40 Meter Mini-MOXON Beam Antenna At W7XA. About Homebrew Antenna Vertical Hf. Getting it up into the trees is easy, many different ways. Add to cart. Its Near-Vertical Incidence Skywave is reflected back toward earth by the 'F' layer of the ionosphere to cover an area roughly 150 to 200 km (100-125 miles) around the antenna. Since I was lucky enough to have someone give me lots of aluminum stock, I decide to try my hand at building a mock up of a 80/40 meter version of a butternut antenna. Not only will the antenna serve me well at Pigeon House, it will make a good low-profile antenna option for Mt Kosciuszko. High Performance 40 Meters Vertical. When the 2 and 40 meter antennas go up I also plan on attaching a 70 cm half-wave vertical with counterpoise. §There are several different models that do not require radials, notably the Titan (75/80 thru 10 meters) and the Eagle (40 thru 10 meters). The antenna comes in a shipping container 60 X 4 X 4 inches. With that said, go look up the cost of one that is being sold in the magazines and on the web. Twenty inches would also work fine for 20 meters as long as you adjust the vertical length of the wires. I have used this to make perhaps 500 contacts on 80 meters and 1000 on 40 meters in 7 months; the furthest being New Zealand on 40 and Moscow on 80 meters, mostly at 500 watts (and all the reports were 599, hi). FN33eh [Extra] Simple dipole is the best. Considering the lousy band conditions at the long bottom of the sunspot cycle, the R7000 proved to be a surprisingly good performer, especially on 40 meters. It’s the best 40 meter vertical I’ve made yet but remember – these only work from about 1,000 miles upwards. Zantenna = 28 ohms. The diagonal wires make it partially a vertical antenna with a nice reduction in polarization QSB. §The GAP brand of antennas is well known here in Florida and are made near Melbourne, FL. The RF energy, radiated by the dipole, is both directed upward and absorbed by the earth. - For 75 m. He emailed me later, " Your signal was a nice strong 59 ". 10 METER “SUPER SCANNER” HF MULTIBAND VERTICAL Convert that old CB Antenna. the lower HF bands with an outboard tuner, whereas other, tuned trap vertical antennas typically cover only 40 meters and some higher bands, but have little application, and typically no application on 160 meters. Rated for 2KW PEP. The SWR was in the high 2’s on Channel 01 and 20, and 3+ on Channel 40. keep experimenting and have fun. Dimension "A" is the height of the antenna from the base to the apex, not the length of each of the vertical wires. The 2 el Optibeam antenna for 40/30 Meters is installed on this tower. #4 wavrider, Apr 5, 2013. The vertical antenna is specifically designed for low visibility, great for HOA restricted areas, while providing optimum performance on 40 meters. , KL7JR/KL7USI I used a homebrew multi-banded quarter-wave vertical antenna that was easy to assemble and disassemble and didn't take up a lot of space in my canoe. GAP Antenna Products is pleased to bring you the Mono GAP. Mike takes you step-by-step throught the design and. The DX Engineering 40VE-2 is a fast taper single-band vertical antenna system with a low profile top hat assembly and is slightly less than 25 feet in height. §There are several different models that do not require radials, notably the Titan (75/80 thru 10 meters) and the Eagle (40 thru 10 meters). However when working long-haul DX, it was consistently 1 to 2 S-Units better than my 40m dipole installed at 40 ft. Unlike many END FED antennas on the market, this one does not require the Antenna Tuner to operate. Figure 5 – Tube and feed side of portable HF antenna Support Plate. Build yourself a 40/80m antenna for small gardens January 6, 2019 m0cvoantennas1 Leave a comment Go to comments So, you’ve just got yourself a licence or a nice new HF transceiver and are hoping to be active on the lower frequency bands of 80m (3. Foundation poured on July 7, 2007 Setting the 300 lb tower base in place Completed on 24-Aug-2007. This antenna just performs. Page 1 of 9 April 2017 W1DYJ ~ 40M Vertical A Homebrew 40M Vertical with Elevated Radials A Little Ham History Building, testing, using, and rebuilding antennas has always been one of my favored ham activities since shortly after I was licensed in 1962 as novice KN1VFX in southern Connecticut. Made a fine dummy load. Vertical element length = radial length. Having had. Rated for 2KW PEP. Solve Virtually Any Restricted Space Problem - 40 Meter Isotron only 22 inches x 16 inches x 15 inches! Easy, Quick, and Simple Installation. Been looking at the butternut hf-2v with 160 meter add-on. Note the resin support blocks for the vertical aluminum share the 1/4-20 hardware with the tripod blocks on the other side. So, the information here will roughly translate over to 80 through 20 meter operation of the 43 foot vertical (or, even better as you will see, a 50 foot vertical). My vertical broke the pile in one shout. (My simulations assume that # 12 wire is used on all conductors). 00! Wow! These guys are making some good markup! Features of the K0WA 40 meter verticle. Thanks for the report Brent. High Performance 40 Meters Vertical. About Homebrew Antenna Vertical Hf. Handles Up to 1000 Watts PEP. meters, but 40 inches for 20 meters. This antenna just performs. CONCLUSION: If you are interested in working low band DX and back yard space is scarce, this is antenna well worth consideration. A trap design guide is provided below to aid multiband dipole construction. This will cost a fortune. - For 40 m. The 40 meter zepp/doublet will not load up on this band so I built a 17 meter monoband vertical at 35ft tall with 4 raised radials sloping off at 45 degrees around 22ft. When the 2 and 40 meter antennas go up I also plan on attaching a 70 cm half-wave vertical with counterpoise. Since I was lucky enough to have someone give me lots of aluminum stock, I decide to try my hand at building a mock up of a 80/40 meter version of a butternut antenna. The DX Engineering 40VE-2 is a fast taper single-band vertical antenna system with a low profile top hat assembly and is slightly less than 25 feet in height. This is be-. Add to cart. vertical antenna projects for the 40 meters band category is a curation of 41 web resources on , Slink-ette antenna, The Hudson antenna, Vertical antenna for 40 and 80m. Gain improves 1 dB (over average gnd). He emailed me later, " Your signal was a nice strong 59 ". When the 2 and 40 meter antennas go up I also plan on attaching a 70 cm half-wave vertical with counterpoise. But also wire antennas, bobtail curtains, c-pole and hentenna. Would like to get all the info I can for this. - For 40 m. The diagonal wires make it partially a vertical antenna with a nice reduction in polarization QSB. Rated for 2KW PEP. This page describes my homebrew 80/40 meter trap vertical. I give a thumbs up to this antenna; I believe I am getting a lower angle of radiation. The 2 el Optibeam antenna for 40/30 Meters is installed on this tower. This one is an experiment. The Hex Array has 6 of these antenna elements, as identical as I could make them. THE G3XOV JOYSTICK VERTICAL (HF experimental multiband vertical) 75/80 METER VERTICAL – KJ4IIF. 2021: Author: okawata. Its Near-Vertical Incidence Skywave is reflected back toward earth by the 'F' layer of the ionosphere to cover an area roughly 150 to 200 km (100-125 miles) around the antenna. The dimensions given are those used in the models. By John Portune W6NBC. Thanks for the report Brent. Relay controlled so at the flip of a switch I could be using that vertical for a 1/2 wl on 40 or a 1/4 wl vert on 80. They are very well built, using good quality "doorknob" capacitors, and nice airwound low-loss coils. keep experimenting and have fun. The 25 foot vertical is qualitatively similar to the 43 foot vertical, but at half size, and is designed to provide acceptably efficient operation from 40 meters to 10 meters. Its Near-Vertical Incidence Skywave is reflected back toward earth by the 'F' layer of the ionosphere to cover an area roughly 150 to 200 km (100-125 miles) around the antenna. THE G3XOV JOYSTICK VERTICAL (HF experimental multiband vertical) 75/80 METER VERTICAL – KJ4IIF. GAP Antenna Products is pleased to bring you the Mono GAP. Note the resin support blocks for the vertical aluminum share the 1/4-20 hardware with the tripod blocks on the other side. It was time to start tuning the antenna. This shortened easy-to-build vertical, with no-radials, is made from surplus military camouflage poles. 2021: Author: tsubirai. This is post 2101 in a continuing series of simple ham radio antennas. §The GAP brand of antennas is well known here in Florida and are made near Melbourne, FL. vertical system for the lower bands 160 - 40 meters? I would like to see info on first putting in 2 verticals then upgrading it to 4 later. §There are several different models that do not require radials, notably the Titan (75/80 thru 10 meters) and the Eagle (40 thru 10 meters). My antennas are a Hustler 5-BTV vertical (homebrew modified to cover 17m and 12m making it a 7-BTV), a home brew 3 band fan dipole for 40- 20-15, a home built Windom inverted "V", a home brewed 6 meter 3 element yagi and a fixed 2 element wire beam for 20 meters, all up about 30 ft. Good for up to 40 or 50 feet in height, depending on your strength. Having had an "HF2" for a while, I decided to see if I could make a homebrew "improved". The tap on the coil is about half way up for using a 102 inches whip for 40 meters per manufacturer. This is because I wanted to squeeze the antenna into available space. The antenna comes in a shipping container 60 X 4 X 4 inches. 45-49; A Disguised Flagpole Antenna QST May 1993, p. Select the band using the aligator clip (9):- 0 turns = 14 MHz (20 meter band) (VSWR - almost 1:1) 2 turns = 10 MHz (30 meter band) (VSWR - almost 1:1) 6 turns = 7 MHz (40 meter band) (VSWR - about 1. off the ground. The tower was installed on 24-Aug-2007. This is post 2101 in a continuing series of simple ham radio antennas. 2021: Author: tsubirai. My vertical broke the pile in one shout. The diagonal wires make it partially a vertical antenna with a nice reduction in polarization QSB. DX results due to the antenna‟s omni-directional radiation pattern and extremely low 22 degree take-off angle. Optibeam 40/30 yagi on a TiltPlate. Twenty inches would also work fine for 20 meters as long as you adjust the vertical length of the wires. Many good ideas were proposed, but the winner was a 2-meter base station vertical antenna made from a pair of coat. The dimensions given are those used in the models. it: Hf Antenna Homebrew Vertical. This antenna was designed to provide low angle radiation for good DX performance during the night time hours. Handles Up to 1000 Watts PEP. Big Wires – A 160 / 80 / 40 Meter Multi-band Antenna. Its Near-Vertical Incidence Skywave is reflected back toward earth by the 'F' layer of the ionosphere to cover an area roughly 150 to 200 km (100-125 miles) around the antenna. Built from stainless steel and aluminum hardware to resist corrosion, these rugged traps have a pull strength of over 600 lbs. Page 1 of 9 April 2017 W1DYJ ~ 40M Vertical A Homebrew 40M Vertical with Elevated Radials A Little Ham History Building, testing, using, and rebuilding antennas has always been one of my favored ham activities since shortly after I was licensed in 1962 as novice KN1VFX in southern Connecticut. A Home Brew HF Vertical From Copper Pipe by John Reisenauer Jr. radials and vertical elements. Choose an option 10m 12m 15m 17m 20m 30m 40m. I give a thumbs up to this antenna; I believe I am getting a lower angle of radiation. I wanted high efficiency 40 Meter antenna with low-angle radiation. The diagonal wires make it partially a vertical antenna with a nice reduction in polarization QSB. They are very well built, using good quality "doorknob" capacitors, and nice airwound low-loss coils. W2VS traps are available for 80 meters and up in two versions. E(V/m) = Electric field strength in volts per meter (V/m) at a distance (d = 1 meter) from an antenna with unity gain (G=1). 5MHz) and 40m (7MHz) but are a bit concerned about how much space you will need for an antenna. Build yourself a 40/80m antenna for small gardens January 6, 2019 m0cvoantennas1 Leave a comment Go to comments So, you’ve just got yourself a licence or a nice new HF transceiver and are hoping to be active on the lower frequency bands of 80m (3. This will cost a fortune. And there's a bonus: you can use the same approach to use your quarter-wave 40-meter vertical as a 5/8-wave antenna on 17 meters! An Efficient Multiband Vertical for 160 through 20 Meters QST October 1998, pp. My vertical broke the pile in one shout. The SWR was in the high 2’s on Channel 01 and 20, and 3+ on Channel 40. I originally planned on building a 70 cm full-wave twin-lead J-Pole, and I likely still will, but I wanted to see if I could make a vertical with counterpoise that works well. vertical antenna projects for the 40 meters band category is a curation of 41 web resources on , Slink-ette antenna, The Hudson antenna, Vertical antenna for 40 and 80m. Twenty inches would also work fine for 20 meters as long as you adjust the vertical length of the wires. Still trying to get the 80 meters section to resonate in a portion of the cw/sbb. E(V/m) = Electric field strength in volts per meter (V/m) at a distance (d = 1 meter) from an antenna with unity gain (G=1). The 2 el Optibeam antenna for 40/30 Meters is installed on this tower. Having had an "HF2" for a while, I decided to see if I could make a homebrew "improved". Vertical element length = radial length. So, the information here will roughly translate over to 80 through 20 meter operation of the 43 foot vertical (or, even better as you will see, a 50 foot vertical). The RF energy, radiated by the dipole, is both directed upward and absorbed by the earth. Made a fine dummy load. •20 meters and above or 80 meters and Need to be mounted high enough that the ladder line is vertical for best TV antenna 20 mtr 40 mtr 80 mtr. Either they do not cover those lower bands, or they have such an unreasonably narrow useable bandwidth as to be nearly useless thereon. it: Hf Antenna Homebrew Vertical. However when working long-haul DX, it was consistently 1 to 2 S-Units better than my 40m dipole installed at 40 ft. 45-49; A Disguised Flagpole Antenna QST May 1993, p. Compare this to a regular λ/4 vertical at 62 ft. Views: 26137: Published: 27. Since I was lucky enough to have someone give me lots of aluminum stock, I decide to try my hand at building a mock up of a 80/40 meter version of a butternut antenna. What a bad mistake that was! The butternut antenna I once own was a 5 band vertical and work really good considering I did not have any radials down, and did not have the space to put any down. Top Band, as 160 meters is called, presents a a challenge because the long wavelength leads to large antennas. I give a thumbs up to this antenna; I believe I am getting a lower angle of radiation. Wolf River Coils TIA 1000 with the mini coil as well. This 30 ft vertical wire is the primary radiating element. The model was created assuming that the feedpoint impedance was 112 Ω, and that the bottom of the antenna with the balun was at a height of 2m above the ground. This is an End-Fed Half-Wave (EFHW*) antenna for 40/20/15 and 10m bands. When the 2 and 40 meter antennas go up I also plan on attaching a 70 cm half-wave vertical with counterpoise. Durable Construction, Can be Used in Extreme Weather Conditions. 40 meter band antennas projects category is a curation of 219 web resources on , The 40M Extended Double Zepp, Shrunken 40 Meter Phased Quads, Helically wound antenna for 40m. My vertical broke the pile in one shout. Still trying to get the 80 meters section to resonate in a portion of the cw/sbb. This will cost a fortune. A QRPGuys based "random" wire end fed with 29 and 35 ft elements. Feed the antenna with 50 ohm coaxial cable, braid connected to the bracket (5) and the center conductor connected to an aligator clip. The RF energy, radiated by the dipole, is both directed upward and absorbed by the earth. My first true DX contact shortly after installing the Titan DX was FT5ZM, Amsterdam Island. it: Hf Antenna Homebrew Vertical. Considering the lousy band conditions at the long bottom of the sunspot cycle, the R7000 proved to be a surprisingly good performer, especially on 40 meters. Tunes & Performs Without Radials or Antenna Tuners. In my case I have a Hy-Gain AV-6160 43-foot vertical for 160-20 meters, and a Hy-Gain TH-1 rotatable dipole for 20/15/10/6 meters, as this dipole normally outperforms my vertical on the higher bands. A friend load me his MFJ 989C antenna tuner. it: Hf Antennas Homebrew. One can always play tricks with loading to be able to use a physically shorter length of wire. A whopping 11422 miles from my QTH. Wolf River Coils TIA 1000 with the mini coil as well. About Antennas Homebrew Hf. Been looking at the butternut hf-2v with 160 meter add-on. By John Portune W6NBC. They are very well built, using good quality "doorknob" capacitors, and nice airwound low-loss coils. My first true DX contact shortly after installing the Titan DX was FT5ZM, Amsterdam Island. EFHW-4010-1K-Plus™ Multi-Band End Fed Half Wave Antenna. He emailed me later, " Your signal was a nice strong 59 ". The butternut antenna I once own was a 5 band vertical and work really good considering I did not have any radials down, and did not have the space to put any down. (My simulations assume that # 12 wire is used on all conductors). There are many articles on compact 160 m antennas, but this is not one of them. The counterpoise is off the ground only about 5 feet so the antenna is still ground mounted. 2021: Author: tsubirai. Thanks for the report Brent. CONCLUSION: If you are interested in working low band DX and back yard space is scarce, this is antenna well worth consideration. 65; A Simple and Portable HF Vertical Travel Antenna QST July 2002, pp. Home Brew 80/40 Meter Vertical Antenna : The 40 meter section of this antenna works the best for me right now. Well the only way I've been able to achieve that was. I wanted high efficiency 40 Meter antenna with low-angle radiation. So I wanted a self-supporting rotatable dipole for best performance on 12/17 meter as well. This shortened easy-to-build vertical, with no-radials, is made from surplus military camouflage poles. 2 to 1 and direct coax fed. FN33eh [Extra] Simple dipole is the best. Many good ideas were proposed, but the winner was a 2-meter base station vertical antenna made from a pair of coat. Barker & Williamson has been a recognized leader worldwide in the manufacture of the highest quality HF broadband antennas, fiberglass masts, air wound coil stock, and other radio parts for military, government, EOC and commercial use since 1932. By John Portune W6NBC. A Home Brew HF Vertical From Copper Pipe by John Reisenauer Jr. I give a thumbs up to this antenna; I believe I am getting a lower angle of radiation. This video was uploaded from an Android phone. Good for up to 40 or 50 feet in height, depending on your strength. vertical antenna projects for the 40 meters band category is a curation of 41 web resources on , Slink-ette antenna, The Hudson antenna, Vertical antenna for 40 and 80m. A Mono GAP is a single band antenna, that functions as an asymmetrically fed verticle dipole. But also wire antennas, bobtail curtains, c-pole and hentenna. Foundation cage -- 11 yards, 4,000 psi. The W8AMZ 40m Vertical Wire Monopole antenna uses just three elements, a vertical driven element and two counterpoise radials, to deliver outstanding. The DX Engineering 40VE-2 is a fast taper single-band vertical antenna system with a low profile top hat assembly and is slightly less than 25 feet in height. The 2 el Optibeam antenna for 40/30 Meters is installed on this tower. Resources listed under 40 Meter Antennas category belongs to Antennas main collection, and get reviewed and rated by amateur radio operators. It is a resonant Half wave on 40m (7MHz) therefore also resonant on second, third, and fourth harmonics. amministrazionediimmobili. Since I was lucky enough to have someone give me lots of aluminum stock, I decide to try my hand at building a mock up of a 80/40 meter version of a butternut antenna. Rated for 2KW PEP. Without Radials. There are many articles on compact 160 m antennas, but this is not one of them. This one is an experiment. Silver Bullet Portable Vertical 80 to 10 meters Power: 100W digital, 300W CW & 500W SSB. Unlike many END FED antennas on the market, this one does not require the Antenna Tuner to operate. Select the band using the aligator clip (9):- 0 turns = 14 MHz (20 meter band) (VSWR - almost 1:1) 2 turns = 10 MHz (30 meter band) (VSWR - almost 1:1) 6 turns = 7 MHz (40 meter band) (VSWR - about 1. Been looking at the butternut hf-2v with 160 meter add-on. Feed the antenna with 50 ohm coaxial cable, braid connected to the bracket (5) and the center conductor connected to an aligator clip. My 40 meter vertical cost me $13. Many good ideas were proposed, but the winner was a 2-meter base station vertical antenna made from a pair of coat. What a bad mistake that was! The butternut antenna I once own was a 5 band vertical and work really good considering I did not have any radials down, and did not have the space to put any down. I wanted high efficiency 40 Meter antenna with low-angle radiation. The Isotron Antenna. I also tried a center fed helical vertical dipole design up the full length of the mast. There are many articles on compact 160 m antennas, but this is not one of them. it: Hf Antennas Homebrew. A trap design guide is provided below to aid multiband dipole construction. Good for up to 40 or 50 feet in height, depending on your strength. My antennas are a Hustler 5-BTV vertical (homebrew modified to cover 17m and 12m making it a 7-BTV), a home brew 3 band fan dipole for 40- 20-15, a home built Windom inverted "V", a home brewed 6 meter 3 element yagi and a fixed 2 element wire beam for 20 meters, all up about 30 ft. This shortened easy-to-build vertical, with no-radials, is made from surplus military camouflage poles. 66 in total. GAP Antenna Products is pleased to bring you the Mono GAP. The overall height of the antenna is approximately 48. I originally planned on building a 70 cm full-wave twin-lead J-Pole, and I likely still will, but I wanted to see if I could make a vertical with counterpoise that works well. Without Radials. 80/40m Vertical. The trap is a coaxial cable trap, made from RG-213 cable. 2 to 1 and direct coax fed. Page 1 of 9 April 2017 W1DYJ ~ 40M Vertical A Homebrew 40M Vertical with Elevated Radials A Little Ham History Building, testing, using, and rebuilding antennas has always been one of my favored ham activities since shortly after I was licensed in 1962 as novice KN1VFX in southern Connecticut. Not only will the antenna serve me well at Pigeon House, it will make a good low-profile antenna option for Mt Kosciuszko. Gain improves 1 dB (over average gnd). Build yourself a 40/80m antenna for small gardens January 6, 2019 m0cvoantennas1 Leave a comment Go to comments So, you’ve just got yourself a licence or a nice new HF transceiver and are hoping to be active on the lower frequency bands of 80m (3. I had already tried a homebrew G5RV but couldn't get it more than 18' over the roof so it was purely NVIS. keep experimenting and have fun. Compare this to a regular λ/4 vertical at 62 ft. 28-31 How. I love this antenna. And there's a bonus: you can use the same approach to use your quarter-wave 40-meter vertical as a 5/8-wave antenna on 17 meters! An Efficient Multiband Vertical for 160 through 20 Meters QST October 1998, pp. So, the information here will roughly translate over to 80 through 20 meter operation of the 43 foot vertical (or, even better as you will see, a 50 foot vertical). Vertical element length = radial length. The 40 meter zepp/doublet will not load up on this band so I built a 17 meter monoband vertical at 35ft tall with 4 raised radials sloping off at 45 degrees around 22ft. It is a resonant Half wave on 40m (7MHz) therefore also resonant on second, third, and fourth harmonics. A Mono GAP is a single band antenna, that functions as an asymmetrically fed verticle dipole. Would like to get all the info I can for this. This shortened easy-to-build vertical, with no-radials, is made from surplus military camouflage poles. Solve Virtually Any Restricted Space Problem - 40 Meter Isotron only 22 inches x 16 inches x 15 inches! Easy, Quick, and Simple Installation. Handles Up to 1000 Watts PEP. This 30 ft vertical wire is the primary radiating element. They are very well built, using good quality "doorknob" capacitors, and nice airwound low-loss coils. The butternut antenna I once own was a 5 band vertical and work really good considering I did not have any radials down, and did not have the space to put any down. This antenna just performs. Durable Construction, Can be Used in Extreme Weather Conditions. This is because I wanted to squeeze the antenna into available space. This will cost a fortune. The dimensions given are those used in the models. 10m – 40m MonoGAPs. 65; A Simple and Portable HF Vertical Travel Antenna QST July 2002, pp. Over the years there have been a lot of home brew and commercial R7000 "half wave" vertical to get back on the air. The Hex Array has 6 of these antenna elements, as identical as I could make them. - For 40 m. FN33eh [Extra] Simple dipole is the best. Still trying to get the 80 meters section to resonate in a portion of the cw/sbb. He emailed me later, " Your signal was a nice strong 59 ". Zantenna = 28 ohms. In this way, the support plate does not carry the load of the vertical as it transmits its load directly to the tripod mast. The dimensions given are those used in the models. have an antenna for the 17- and 12-meter bands. May just end up doing 40 / 80 meters only. High Performance 40 Meters Vertical. Made a fine dummy load. Made out of aluminum tubing Uses PVC as an insulator Is 32 feet high. Either they do not cover those lower bands, or they have such an unreasonably narrow useable bandwidth as to be nearly useless thereon. Would like to get all the info I can for this. It’s the best 40 meter vertical I’ve made yet but remember – these only work from about 1,000 miles upwards. Thanks Peter for the inspiration. 2 to 1 and direct coax fed. Getting it up into the trees is easy, many different ways. 10m – 40m MonoGAPs. the oak tree at 3. I built a 80 meter vertical, then put a matching network at the base for 40 meters. So I wanted a self-supporting rotatable dipole for best performance on 12/17 meter as well. I use a water bottle and paracord. Also center loaded antennas have more current below coil for better performance I beleive. This is because I wanted to squeeze the antenna into available space. What a bad mistake that was! The butternut antenna I once own was a 5 band vertical and work really good considering I did not have any radials down, and did not have the space to put any down. #4 wavrider, Apr 5, 2013. The SWR was in the high 2’s on Channel 01 and 20, and 3+ on Channel 40. When the 2 and 40 meter antennas go up I also plan on attaching a 70 cm half-wave vertical with counterpoise. Not only will the antenna serve me well at Pigeon House, it will make a good low-profile antenna option for Mt Kosciuszko. My vertical broke the pile in one shout. The counterpoise is off the ground only about 5 feet so the antenna is still ground mounted. I am trying to figure out how to get another one and get it “portable” for field day (I need to figure out the financial […]. Without Radials. Top Band, as 160 meters is called, presents a a challenge because the long wavelength leads to large antennas. On this web site you will find mostly 11 meter antennas. it: Hf Antennas Homebrew. Big Wires – A 160 / 80 / 40 Meter Multi-band Antenna. Mike takes you step-by-step throught the design and. DX results due to the antenna‟s omni-directional radiation pattern and extremely low 22 degree take-off angle. Relay controlled so at the flip of a switch I could be using that vertical for a 1/2 wl on 40 or a 1/4 wl vert on 80. What a bad mistake that was! The butternut antenna I once own was a 5 band vertical and work really good considering I did not have any radials down, and did not have the space to put any down. It is a resonant Half wave on 40m (7MHz) therefore also resonant on second, third, and fourth harmonics. On 160 meters you should see about 110 kHz bandwidth. I want to discuss performance. Page 1 of 9 April 2017 W1DYJ ~ 40M Vertical A Homebrew 40M Vertical with Elevated Radials A Little Ham History Building, testing, using, and rebuilding antennas has always been one of my favored ham activities since shortly after I was licensed in 1962 as novice KN1VFX in southern Connecticut. A whopping 11422 miles from my QTH. Made a fine dummy load. I wanted to be able to operate on 80 meters with limited space, plus 40 meters. Resources listed under 40 Meter Antennas category belongs to Antennas main collection, and get reviewed and rated by amateur radio operators. It was time to start tuning the antenna. Gain improves 1 dB (over average gnd). !!) I have always admired the Butternut vertical antennae. You may want to cut tips of the correct lengths for 10 and 12 meters. I wanted high efficiency 40 Meter antenna with low-angle radiation. LMR 600 Coax with N type connectors. This antenna just performs. radials and vertical elements. I have used this to make perhaps 500 contacts on 80 meters and 1000 on 40 meters in 7 months; the furthest being New Zealand on 40 and Moscow on 80 meters, mostly at 500 watts (and all the reports were 599, hi). For other values of d, divide the calculated E (V/m) by 10 for d = 10 m; by 100 for d = 100 m, by 1000 for d = 1000 m, by 10000 for d = 10000 m, etc. E(V/m) = Electric field strength in volts per meter (V/m) at a distance (d = 1 meter) from an antenna with unity gain (G=1). Twenty inches would also work fine for 20 meters as long as you adjust the vertical length of the wires. Since I was lucky enough to have someone give me lots of aluminum stock, I decide to try my hand at building a mock up of a 80/40 meter version of a butternut antenna. My antennas are a Hustler 5-BTV vertical (homebrew modified to cover 17m and 12m making it a 7-BTV), a home brew 3 band fan dipole for 40- 20-15, a home built Windom inverted "V", a home brewed 6 meter 3 element yagi and a fixed 2 element wire beam for 20 meters, all up about 30 ft. Page 1 of 9 April 2017 W1DYJ ~ 40M Vertical A Homebrew 40M Vertical with Elevated Radials A Little Ham History Building, testing, using, and rebuilding antennas has always been one of my favored ham activities since shortly after I was licensed in 1962 as novice KN1VFX in southern Connecticut. This one is an experiment. This is because I wanted to squeeze the antenna into available space. This is post 2101 in a continuing series of simple ham radio antennas. Thanks Peter for the inspiration. This shortened easy-to-build vertical, with no-radials, is made from surplus military camouflage poles. it: Hf Antennas Homebrew. Relay controlled so at the flip of a switch I could be using that vertical for a 1/2 wl on 40 or a 1/4 wl vert on 80. The antenna comes in a shipping container 60 X 4 X 4 inches. This is an End-Fed Half-Wave (EFHW*) antenna for 40/20/15 and 10m bands. 40m-10m DELTA LOOP ANTENNA - GU3WHN AIM 4170C Antenna RF Analyser results for the GU3WHN 40m Loop The following pages have a GAL-ANA model of the GU3WHN inverted Delta Loop. What a bad mistake that was! The butternut antenna I once own was a 5 band vertical and work really good considering I did not have any radials down, and did not have the space to put any down. Must do mobile as HOA rules. Home Brew 80/40 Meter Vertical Antenna I once own a butternut antenna and sold it. Note that the actual dimen-sions will vary from these.