J7bfek.php - G7FEK’s original “Nested Marconi Antenna” was first designed in 1988 and comprised two quarter-waves in parallel, fed against ground in inverted L. The original antenna was roughly 50 feet long x 22 feet high. During 2007 the antenna was optimised and tested at sunspot minimum to improve performance and multi-band operation.

 
K2GL was and is a legend. He had..... serious money and built one of the first super stations. A tale I heard from a ham who spent a lot of time operating there is that one of the neighbors had some objections to the various towers and antennas, so K2GL bought the neighbors house and that was that. . Tyr

G7FEK Profile and History. G7FEK now operates mostly portable and low power (QRP), including a 100% Solar Powered station, plus various special event stations. 1m HF loop antenna - Uses a novel tuning capacitor - RADCOM antennas column Sept / Oct 2010. G8JNJ ‘Fat-Max ® ’ HF Antenna - 6m to 40m - the poor man's Steppir. HF Variable Pitch Helical antennas DG7PE & Chameleon V1. Loft and Attic antennas for restricted places. 33ft Verticals and Ununs.A 14 meters ( 46 ft ) multi band antenna for small gardens that works well on 80 meters Main bands (@~50 ohm) are 80m / 40m / 30m / 17m / 15m / 12m. Evolving from a simple end-fed Marconi for 80m, this antenna design was created by Mike G7FEK ( reproduced with consent ).The idea was to use the opposing harmonic . © 1988 - 2009 Mike Dennis, G7FEK. - Website: www.g7fek.co.uk - updated: 27 March 2010 G7FEK Limited Space Antenna G7FEK Multi-band “Nested Marconi” Antenna ...The award, announced by the International Dark Sky Association, confirmed Galloway as one of the best places for stargazing in the world.5 Band 1/4 wave Telescopic Antenna. G7FEK LIMITED SPACE ANTENNA( Nested Marconi Antenna) 80, 40, 30, 17, 15 , 12 m see text for 20 & 10m operationMy Present Station Setup: HF & 50 MHz. Main TRX - Alinco DX70TH (I run only 50W PEP / 20W AM or less) QRP and AM: Homebrew 80m AM 2.5W rig using IRF510 / MFJ2940 20m SSB QRP (at 5W) Antenna: choice of either 90 ft Doublet, or G7FEK nested marconi multiband vertical - 80 thru to 6m.“Due to the hideousness of Skype 4, I will not be making a Skype 4 version of this product. Unfortunately Skype users are restricted to just one software product and when it goes bad, as Skype has done with version 4, you are stuck.We would like to show you a description here but the site won’t allow us.Sep 7, 2015 · Basic Set up ProcedureStep 1 - Impedance matchingTo start, experiment with the counterpoise length & position for VSWR dip somewhere around 3.7 MHz and 7.1 MHz. The exactresonant frequency is not important yet and will be fine tuned afterwards. What is full size – and how close do we have to be? What is full size on 80m – ¼ wave 66ft, ½ wave 133ft – other bands ½ wave multiples not matched by ATU/Coupler ( v.high Z)My Present Station Setup: HF & 50 MHz. Main TRX - Alinco DX70TH (I run only 50W PEP / 20W AM or less) QRP and AM: Homebrew 80m AM 2.5W rig using IRF510 / MFJ2940 20m SSB QRP (at 5W) Antenna: choice of either 90 ft Doublet, or G7FEK nested marconi multiband vertical - 80 thru to 6m.The G5RV has a reasonable SWR on 80, 40, 20, 15, and 12 meters. It is not an acceptable performer on 30, 17, or 10 meters. SWR is actually better with 300-ohm transmitting line than with the 450 ohm line normally used. While the G5RV requires an antenna tuner, it is very efficient on at least 5 bands.RSARS Antennas and Technical Document Links ISS RX - An interesting document about the ISS Space Station by Bob/G4PVB QRP Z-Match 40-10m iss 1.3 Louis Varney's G5RV - RSARS Tribute 1.3 4-band 20-17-15-10m COLA -G8ODE iss 1.0 STUDY - OPEN LOOP DIPOLE ANTENNA -G8ODE Ver 1a Fox-Delta SWR Analyser - Android version iss 1.1 An THE…46ft multi-band antenna for small gardens by g7fek. Works well on 80m. An excellent DX performer and is an ideal replacement for your half size G5RV...Going over how I went about constructing and fitting the G7FEK Limited Space Antenna on my small suburban lot. I live in a rental property so I've gone about...A 14 meters ( 46 ft ) multi band antenna for small gardens that works well on 80 meters Main bands (@~50 ohm) are 80m / 40m / 30m / 17m / 15m / 12m. Evolving from a simple end-fed Marconi for 80m, this antenna design was created by Mike G7FEK ( reproduced with consent ).The idea was to use the opposing harmonic . Our basic PHP website is going to feature a home page, including biographical information and some images. For this simple PHP website, you're going to create a single PHP page populated by content from three HTML pages. The index.php file you create can then be edited by adjusting the words and images from the original HTML files.Description: Advantages. Small size (46ft long x 24ft high) 50 ohm Coaxial Feed. Multi-band operation for 80m to 10m. ATU less operation possible on up to 4 primary bands (80m/40m/20m/15m) Low angle of radiation dominant (good for DX) Easy to construct and set up. Product is not in production.Try it Yourself ». Code explanation: First, check if the input field is empty (str.length == 0). If it is, clear the content of the txtHint placeholder and exit the function. However, if the input field is not empty, do the following: Create an XMLHttpRequest object. Create the function to be executed when the server response is ready. Besides regular improvements, new improvements create the possibility of further improvements of capabilities and services available with the program. MMANA-GAL is an antenna-analyzing tool based on the moment method, which was introduced in MININEC. The program provides ability for changing the language of signs and messages of the program.The Jackite vs Ebay pole comparison showed you how you can spend a few bucks and get a good single or dual band HF antenna. You can spend about $25 to turn the Jackite 31′ pole into an all-band HF Antenna that will give you all bands between 80 and 10 meters, without a tuner. There are mods for 160m and it might even work on 6m with some tuning.© 1988 - 2009 Mike Dennis, G7FEK. - Website: www.g7fek.co.uk - updated: 27 March 2010 G7FEK Limited Space Antenna G7FEK Multi-band “Nested Marconi” Antenna ... Basic Set up ProcedureStep 1 - Impedance matchingTo start, experiment with the counterpoise length & position for VSWR dip somewhere around 3.7 MHz and 7.1 MHz. The exactresonant frequency is not important yet and will be fine tuned afterwards.A 46 ft multi band antenna for small gardens that works well on 80 meters Main bands (@~50 ohm) are 80m / 40m / 30m / 17m / 15m / 12m Other bands (see text): 20m / 10m. 38 ft (11.7m) 8 ft (2.5m) 24 ft (7.4m) 50 Ohm Coaxial. This antenna was first conceived as a simple dual band antenna in 1988, in an attempt to achieve sensible dual band ...Oct 19, 2018 · G7FEK Antenna. Posted on October 19, 2018 Updated on November 4, 2018. Just completed building a G7FEK antenna. Seems to work fine after a little bit of tweeking of the two counterpoise / radials.(Used 65ft and 33ft) Now have good SWR on both 80m and 40m without a tuner. A 14 meters ( 46 ft ) multi band antenna for small gardens that works well on 80 meters Main bands (@~50 ohm) are 80m / 40m / 30m / 17m / 15m / 12m. Evolving from a simple end-fed Marconi for 80m, this antenna design was created by Mike G7FEK ( reproduced with consent ).The idea was to use the opposing harmonic .Ham radio PDF repository curated by N5DUX. All amateur radio-related projects, tips, tricks, and tools my search has led me to consider making my own ladder line and trying the G7FEK antenna. I have enough room for 4-8 elevated radials in my back yard which i think will work with it.Small Garden Multi Band HF Antenna 80m / 40m / 30m /17m /15m / 12m. This HF multi band antenna for small gardens that works well on 80 meters Main bands (@~50 ohm) are .. £63.00 Ex Tax:£63.00. Add to Cart. Ham radio PDF repository curated by N5DUX. All amateur radio-related projects, tips, tricks, and tools Feb 13, 2023 · Another good option that I recently came across is the G7FEK antenna. G7FEK describes his antenna as “a 46-ft., multi-band antenna for small gardens that works well on 80 meters.”. And, according to G7FEK, its impedance is nearly 50 Ω on 40 meters, 30 meters, 17 meters, 15 meters, and 12 meters, and it can be used with a tuner on 20 meters ... This link is listed in our web site directory since Friday Oct 18 2013, and till today " G7FEK multi-band Antenna " has been followed for a total of 1208 times. So far received 5 votes for a total score of 9.40/10. The scale is 1 - 10, with 1 being poor and 10 being excellent.Small Garden Multi Band HF Antenna 80m / 40m / 30m /17m /15m / 12m. This HF multi band antenna for small gardens that works well on 80 meters Main bands (@~50 ohm) are .. £63.00 Ex Tax:£63.00. Add to Cart. May 13, 2009 · Advantages. Small size (46ft long x 24ft high) 50 ohm Coaxial Feed. Multi-band operation for 80m to 10m. ATU less operation possible on up to 4 primary bands (80m/40m/20m/15m) Low angle of radiation dominant (good for DX) Easy to construct and set up. With the exception of occasional 1 watt RSL events, Radio Caroline has not broadcast on Medium Wave from the MV Ross Revenge since 1990, at the end of its era as an offshore pirate radio station.50 years ago today they tried to silence pirate radio for good.If you can get the entire antenna above the metal roof of the building, 24ft tall starting on the roof, I'd use the building as part of the ground. Should work OK. If you start on the ground the vertical part of the G7FEK should be as far from the metal building and other obstructions as possible. The tuning of the horizontal part over a metal ...Besides regular improvements, new improvements create the possibility of further improvements of capabilities and services available with the program. MMANA-GAL is an antenna-analyzing tool based on the moment method, which was introduced in MININEC. The program provides ability for changing the language of signs and messages of the program.Hello Mike. Let me introduce my self my name is XXX and I have been a radio ham for fifty years, I love antenna building and playing with the big amps 1.5Kw plus it’s fun, the reason why I have got in touch with you is because a friend of mine who has the internet told me about a antenna from the UK the G7FEK antenna seeing a copy of the screen from the internet it looks like the one I was ...Jul 23, 2009 · Hello Mike. Let me introduce my self my name is XXX and I have been a radio ham for fifty years, I love antenna building and playing with the big amps 1.5Kw plus it’s fun, the reason why I have got in touch with you is because a friend of mine who has the internet told me about a antenna from the UK the G7FEK antenna seeing a copy of the screen from the internet it looks like the one I was ... Martin G8JNJ highlights a very interesting antenna designed by Mike G7FEK here:-. The G7FEK antenna goes several stages further than the simple single band End Fed Zepp. G7FEK has produced a design for Multi-Band operation claimed to offer much improved performance over a half sized G5RV or 'Windom' antenna while additionally providing access ...The main antenna I am using is a homemade ZS6BKW doublet, or my trusty G7FEK nested Marconi antenna for DX work. I don't have enough space where I am staying for anything bigger.Advantages. Small size (46ft long x 24ft high) 50 ohm Coaxial Feed. Multi-band operation for 80m to 10m. ATU less operation possible on up to 4 primary bands (80m/40m/20m/15m) Low angle of radiation dominant (good for DX) Easy to construct and set up.Jun 4, 2018 · Now it's time for some 80m DX with the G7FEK limited space antenna. Here I work Phil - W6UC.All you need is a cheap fiberglass pole, go up about 7.5 meters a... Jul 23, 2009 · Hello Mike. Let me introduce my self my name is XXX and I have been a radio ham for fifty years, I love antenna building and playing with the big amps 1.5Kw plus it’s fun, the reason why I have got in touch with you is because a friend of mine who has the internet told me about a antenna from the UK the G7FEK antenna seeing a copy of the screen from the internet it looks like the one I was ... Echolink iphone App I'm sure that, on occasion, there is a case for accessing your repeater users in your local community remotely when you are away, need to contact someone, and there is absolutely no other gateway or repeater in range, and they re not on Skype and don't have a telephone. Small Garden Multi Band HF Antenna 80m / 40m / 30m /17m /15m / 12m. This HF multi band antenna for small gardens that works well on 80 meters Main bands (@~50 ohm) are .. £65.00 Ex Tax:£65.00. Add to Cart. Showing 1 to 2 of 2 (1 Pages)What is full size – and how close do we have to be? What is full size on 80m – ¼ wave 66ft, ½ wave 133ft – other bands ½ wave multiples not matched by ATU/Coupler ( v.high Z)Small Garden Multi Band HF Antenna 80m / 40m / 30m /17m /15m / 12m. This HF multi band antenna for small gardens that works well on 80 meters Main bands (@~50 ohm) are .. £63.00 Ex Tax:£63.00. Add to Cart.If you can get the entire antenna above the metal roof of the building, 24ft tall starting on the roof, I'd use the building as part of the ground. Should work OK. If you start on the ground the vertical part of the G7FEK should be as far from the metal building and other obstructions as possible. The tuning of the horizontal part over a metal ...Another good option that I recently came across is the G7FEK antenna. G7FEK describes his antenna as “a 46-ft., multi-band antenna for small gardens that works well on 80 meters.”. And, according to G7FEK, its impedance is nearly 50 Ω on 40 meters, 30 meters, 17 meters, 15 meters, and 12 meters, and it can be used with a tuner on 20 meters ...We would like to show you a description here but the site won’t allow us.Meteorscan.com live feed is for detetcting meteors using a VHF radar signal. During periods of enhanced tropospheric conditions on VHF, the source signal can be detected directly along with the reflections from meteor ionisation and will be seen on the live feed.The main antenna I am using is a homemade ZS6BKW doublet, or my trusty G7FEK nested Marconi antenna for DX work. I don't have enough space where I am staying for anything bigger. PHP is a general-purpose scripting language geared towards web development. It was originally created by Danish-Canadian programmer Rasmus Lerdorf in 1993 and released in 1995. The PHP reference implementation is now produced by the PHP Group.My Present Station Setup: HF & 50 MHz. Main TRX - Alinco DX70TH (I run only 50W PEP / 20W AM or less) QRP and AM: Homebrew 80m AM 2.5W rig using IRF510 / MFJ2940 20m SSB QRP (at 5W) Antenna: choice of either 90 ft Doublet, or G7FEK nested marconi multiband vertical - 80 thru to 6m.This new section contains links to my antenna articles. Please click on the links below to view the articles. Here you will find articles about several useful antenna designs for both HF and VHF use, as well as portable and mobile antennas. 80m Antenna for Small Gardens G7FEK Antenna Tested at Norman Lockyer Observatory in Sidmouth G7FEK ... If you can get the entire antenna above the metal roof of the building, 24ft tall starting on the roof, I'd use the building as part of the ground. Should work OK. If you start on the ground the vertical part of the G7FEK should be as far from the metal building and other obstructions as possible. The tuning of the horizontal part over a metal ...Meteorscan.com live feed is for detetcting meteors using a VHF radar signal. During periods of enhanced tropospheric conditions on VHF, the source signal can be detected directly along with the reflections from meteor ionisation and will be seen on the live feed.© 1988 - 2009 Mike Dennis, G7FEK. - Website: www.g7fek.co.uk - updated: 27 March 2010 G7FEK Limited Space Antenna G7FEK Multi-band “Nested Marconi” Antenna ... Our basic PHP website is going to feature a home page, including biographical information and some images. For this simple PHP website, you're going to create a single PHP page populated by content from three HTML pages. The index.php file you create can then be edited by adjusting the words and images from the original HTML files.The enclosed EZNEC model has been modified and is based that the far end of the main wire is strung from a support such as a tower. The normal G7FEK model shows the antenna stretched out horizontally at just over 7m above ground level.The Autek VA1 shows the antenna also has a min SWR 4.5:1 at 13.28MHz 2. The antenna measurements were taken in the shack at the end of a 10m RG213 coax with a 1.1m section of Mini-8 coax.Next Steps. I’ve still got to cut the two counterpoises (~10 metres and ~20 metres) and put a banana plug on those for the balun. The 40m/20m dipole is currently mounted on a 6 metre squid pole, set a bit under a metre above the ground. I’m not going to be able to use this pole for the G7FEK. It’s too short.Oct 19, 2018 · G7FEK Antenna. Posted on October 19, 2018 Updated on November 4, 2018. Just completed building a G7FEK antenna. Seems to work fine after a little bit of tweeking of the two counterpoise / radials.(Used 65ft and 33ft) Now have good SWR on both 80m and 40m without a tuner. G7FEK’s original “Nested Marconi Antenna” was first designed in 1988 and comprised two quarter-waves in parallel, fed against. ground in inverted L. The original antenna was roughly 50 feet long x 22 feet high. During 2007 the antenna was optimised and.Meteorscan.com live feed is for detetcting meteors using a VHF radar signal. During periods of enhanced tropospheric conditions on VHF, the source signal can be detected directly along with the reflections from meteor ionisation and will be seen on the live feed. Echolink iphone App I'm sure that, on occasion, there is a case for accessing your repeater users in your local community remotely when you are away, need to contact someone, and there is absolutely no other gateway or repeater in range, and they re not on Skype and don't have a telephone. A 14 meters ( 46 ft ) multi band antenna for small gardens that works well on 80 meters Main bands (@~50 ohm) are 80m / 40m / 30m / 17m / 15m / 12m. Evolving from a simple end-fed Marconi for 80m, this antenna design was created by Mike G7FEK ( reproduced with consent ).The idea was to use the opposing harmonic .© 1988 - 2009 Mike Dennis, G7FEK. - Website: www.g7fek.co.uk - updated: 16 March 2009 G7FEK Limited Space Antenna G7FEK Multi-band “Nested Marconi” Antenna ...Choose from a wide range of antenna types, including single-band, dual-band, multi-band, vertical, trap vertical, wire, HF antennas. Wire Antennas UK receive antenna systems feature the best designs available for HF DXing, as well as for “AM DXing” and for the Short Wave Listening bands (SWL). Maximize your signal and minimize noise with ...Our basic PHP website is going to feature a home page, including biographical information and some images. For this simple PHP website, you're going to create a single PHP page populated by content from three HTML pages. The index.php file you create can then be edited by adjusting the words and images from the original HTML files.© 1988 - 2009 Mike Dennis, G7FEK. - Website: www.g7fek.co.uk - updated: 27 March 2010 © 1988 - 2009 Mike Dennis, G7FEK. - Website: www.g7fek.co.uk - updated: 27 March 2010 G7FEK Limited Space Antenna G7FEK Multi-band “Nested Marconi” Antenna ...PHP is a server scripting language, and a powerful tool for making dynamic and interactive Web pages. PHP is a widely-used, free, and efficient alternative to competitors such as Microsoft's ASP. Start learning PHP now » Easy Learning with "PHP Tryit"© 1988 - 2009 Mike Dennis, G7FEK. - Website: www.g7fek.co.uk - updated: 27 March 2010 G7FEK Limited Space Antenna G7FEK Multi-band “Nested Marconi” Antenna ...What is full size – and how close do we have to be? What is full size on 80m – ¼ wave 66ft, ½ wave 133ft – other bands ½ wave multiples not matched by ATU/Coupler ( v.high Z) The eBay pole on an old camera tripod is very very inexpensive (less than $20) but the antenna pole is flimsy for all but the lightest antenna. The Jackite pole on the other hand is very robust, but also a lot more expensive. It also requires a sturdy mount, as it is much heavier and has a higher wind load. So the winner really depends on your ...A 46 ft multi band antenna for small gardens that works well on 80 meters Main bands (@~50 ohm) are 80m / 40m / 30m / 17m / 15m / 12m Other bands (see text): 20m / 10m. 38 ft (11.7m) 8 ft (2.5m) 24 ft (7.4m) 50 Ohm Coaxial. This antenna was first conceived as a simple dual band antenna in 1988, in an attempt to achieve sensible dual band ...

PHP Programming at Wikibooks. PHP is a general-purpose scripting language geared towards web development. [9] It was originally created by Danish-Canadian programmer Rasmus Lerdorf in 1993 and released in 1995. [10] [11] The PHP reference implementation is now produced by the PHP Group. [12] PHP was originally an abbreviation of Personal Home ... . Ble t

j7bfek.php

Basic Set up ProcedureStep 1 - Impedance matchingTo start, experiment with the counterpoise length & position for VSWR dip somewhere around 3.7 MHz and 7.1 MHz. The exactresonant frequency is not important yet and will be fine tuned afterwards.Advantages. Small size (46ft long x 24ft high) 50 ohm Coaxial Feed. Multi-band operation for 80m to 10m. ATU less operation possible on up to 4 primary bands (80m/40m/20m/15m) Low angle of radiation dominant (good for DX) Easy to construct and set up.The current distribution shows the dominant side of the G7FEK to be the 40m side as one would expect, but the 80m antenna also. contributes some energy to the overall radiation pattern. The antenna model indicates that the G7FEK is omni-directional on this. band with a 250KHz bandwidth between the 2:1 SWR points.Mike Dennis, G7FEK. - Site Web : www.g7fek.co.uk Mars 2010 Traduction F5PCX Mars 2014 Antenne pour espaces réduits par G7FEK Double antenne Marconi multi bande de G7FEK – Version 2008 (révision 5) I was intrigued by the concept because the 450 ohm ladder line was being used as two parallel Wires. These formed the vertical sections of two back to back, inverted L antennas for 80m &Jun 4, 2018 · Now it's time for some 80m DX with the G7FEK limited space antenna. Here I work Phil - W6UC.All you need is a cheap fiberglass pole, go up about 7.5 meters a... Echolink iphone App I'm sure that, on occasion, there is a case for accessing your repeater users in your local community remotely when you are away, need to contact someone, and there is absolutely no other gateway or repeater in range, and they re not on Skype and don't have a telephone. Ham radio PDF repository curated by N5DUX. All amateur radio-related projects, tips, tricks, and tools Sep 2, 2023 · Contribute. to QRZ. G7FEK England. Login is required for additional detail. QSL: QSL via EQSL *Only* - No Physical Cards. Email: Login required to view. Ham Member Lookups: 11078. Biography. 50 years ago today they tried to silence pirate radio for good. Description: Advantages. Small size (46ft long x 24ft high) 50 ohm Coaxial Feed. Multi-band operation for 80m to 10m. ATU less operation possible on up to 4 primary bands (80m/40m/20m/15m) Low angle of radiation dominant (good for DX) Easy to construct and set up. Product is not in production.This antenna was first conceived as a simple dual band antenna in 1988, in an attempt to achieve sensible dual band operation in a small garden of 14m (46 ft) length. Evolving from a simple end-fed Marconi for 80m, the idea was to use the opposing harmonicrelationships of two ¼ wave elements so that they could be fed on odd harmonics without ... Echolink iphone App I'm sure that, on occasion, there is a case for accessing your repeater users in your local community remotely when you are away, need to contact someone, and there is absolutely no other gateway or repeater in range, and they re not on Skype and don't have a telephone.K2GL was and is a legend. He had..... serious money and built one of the first super stations. A tale I heard from a ham who spent a lot of time operating there is that one of the neighbors had some objections to the various towers and antennas, so K2GL bought the neighbors house and that was that.144 MHz SSB - The Forgotten Mode. Poor HF propagation should not stop the real radio Amateur. 144 SSB (2 meter SSB) offers regular openings into Europe and... ..can also be used for local nets on your vertical, working well under weak signal conditions. When I first became a licensed radio amateur in the late 1980's, the vast majority of my ...The main antenna I am using is a homemade ZS6BKW doublet, or my trusty G7FEK nested Marconi antenna for DX work. I don't have enough space where I am staying for anything bigger. © 1988 - 2009 Mike Dennis, G7FEK. - Website: www.g7fek.co.uk - updated: 27 March 2010 G7FEK Limited Space Antenna G7FEK Multi-band “Nested Marconi” Antenna ... 50 years ago today they tried to silence pirate radio for good..

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