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 ...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)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 ...Apr 25, 2015 · Back in the 1980s when I was first licensed, the 2m band was fairly busy much of the time. There was a call for a shift from 25 KHz to 12.5 KHz channel spacing and that eventually became the standard, doubling the number of FM channels. 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.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.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.G7FEK Amateur Radio Station is based in North Wiltshire, England and can be heard on Shortwave and VHF Amateur Radio bands. G7FEK now operates mostly portable and low power (QRP), including a 100% Solar Powered station, plus various special event stations. Here you will find interesting regular posts relating to Amateur and CB Radio, Astronomy ...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. 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.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)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.G7FEK Profile and History. G7FEK now operates mostly portable and low power (QRP), including a 100% Solar Powered station, plus various special event stations. G7FEK Profile and History. G7FEK now operates mostly portable and low power (QRP), including a 100% Solar Powered station, plus various special event stations.It is a multiband HF antenna which works on 80,40,30, (20 see later),17,15,12,10 (with ATU) sounds too good to be true…. The G7FEK comes in at about 14m, again perfect! So lets start building. Two lengths of wire and 7.4m of ladder line, plus some old cable for the counterpoise or earthing. In total it cost about £15 for the ladder line.Oct 23, 2018 · 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. Back in the 1980s when I was first licensed, the 2m band was fairly busy much of the time. There was a call for a shift from 25 KHz to 12.5 KHz channel spacing and that eventually became the standard, doubling the number of FM channels.© 1988 - 2009 Mike Dennis, G7FEK. - Website: www.g7fek.co.uk - updated: 27 March 2010 G7FEK Limited Space Antenna G7FEK Multi-band “Nested Marconi” Antenna ...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 ... 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 ...Here’s the final arrangement. The resistor emulating the ground resistance of the radial system is shown as a small square, and the 50 ohm feed point is shown as a circle. I’ve worked with vertical antennas over many years and I’ve noticed that in small restricted locations such as the back yard of my house (which is only 7.5 x 4.5m), straight radials© 1988 - 2009 Mike Dennis, G7FEK. - Website: www.g7fek.co.uk - updated: 16 March 2009 G7FEK Limited Space Antenna G7FEK Multi-band “Nested Marconi” Antenna ...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 operationBack in the 1980s when I was first licensed, the 2m band was fairly busy much of the time. There was a call for a shift from 25 KHz to 12.5 KHz channel spacing and that eventually became the standard, doubling the number of FM channels.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) Ham radio PDF repository curated by N5DUX. All amateur radio-related projects, tips, tricks, and toolsG7FEK’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. Oct 23, 2018 · 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. © 1988 - 2009 Mike Dennis, G7FEK. - Website: www.g7fek.co.uk - updated: 27 March 2010 G7FEK Limited Space Antenna G7FEK Multi-band “Nested Marconi” Antenna ... 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. 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.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) 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 ...Ham radio PDF repository curated by N5DUX. All amateur radio-related projects, tips, tricks, and toolsThis 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. 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 ...© 1988 - 2009 Mike Dennis, G7FEK. - Website: www.g7fek.co.uk - updated: 27 March 2010 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. Jan 17, 2009 · 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 ... 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...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. It works both ways, but does work a bit better on 20m with the added element. I do not have much luck on 10m with the G7FEK. It works well on 80, as well as 40, 30, 20, 17, and 15. I have not used 12 all that much, and right now, my equipment limits me to 80-40-30-20. In summary, I'm pleased with the antenna, and I think it works well. 2. level 2.Ham radio PDF repository curated by N5DUX. All amateur radio-related projects, tips, tricks, and tools If you are only interested in the LF bands, an inverted L (approx 40ft high and 132ft long) is a good simple to construct antenna which produces very good results, especially if you don t have a lot of space for radials or elevated counterpoise wires. Martin G8JNJ 22/04/2012 V2.2. © 1988 - 2009 Mike Dennis, G7FEK. - Website: www.g7fek.co.uk - updated: 16 March 2009 G7FEK Limited Space Antenna G7FEK Multi-band “Nested Marconi” Antenna ...Here’s the final arrangement. The resistor emulating the ground resistance of the radial system is shown as a small square, and the 50 ohm feed point is shown as a circle. 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.It is a multiband HF antenna which works on 80,40,30, (20 see later),17,15,12,10 (with ATU) sounds too good to be true…. The G7FEK comes in at about 14m, again perfect! So lets start building. Two lengths of wire and 7.4m of ladder line, plus some old cable for the counterpoise or earthing. In total it cost about £15 for the ladder line.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 ... May 31, 2018 · 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... 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.As I continue my mini-series on the G7FEK, we now do some listening on 80 meters followed by local contacts around VK. This video proves you can operate 80m ... 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...Aug 14, 2023 · 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 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.I've been using xampp for quite a while but suddenly none of my .php files are working now! I get this error message: Access forbidden! You don't have permission to access the requested object. It is either read-protected or not readable by the server. If you think this is a server error, please contact the webmaster.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. © 1988 - 2009 Mike Dennis, G7FEK. - Website: www.g7fek.co.uk - updated: 16 March 2009 G7FEK Limited Space Antenna G7FEK Multi-band “Nested Marconi” Antenna ...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. 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 ...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.Here’s the final arrangement. The resistor emulating the ground resistance of the radial system is shown as a small square, and the 50 ohm feed point is shown as a circle.I’ve worked with vertical antennas over many years and I’ve noticed that in small restricted locations such as the back yard of my house (which is only 7.5 x 4.5m), straight radials 1. Type the following command, replacing [location] with the path to your PHP installation. set PATH=%PATH%; [location] 2. Typing php -v now shows the PHP version installed on your Windows system. Note: Check out our other PHP guides such as How to Make a Redirect in PHP or 4 Different Types of Errors in PHP.May 4, 2016 · I've been using xampp for quite a while but suddenly none of my .php files are working now! I get this error message: Access forbidden! You don't have permission to access the requested object. It is either read-protected or not readable by the server. If you think this is a server error, please contact the webmaster. 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)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 ... 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 ... 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.© 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)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.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. Designed specifically for small gardens, it is an ideal replacement for those half size antennas such as the 1/2 size G5RV and Windom 40 (51 ft and 66 ft long respectively).Ham radio PDF repository curated by N5DUX. All amateur radio-related projects, tips, tricks, and toolsMeteorscan.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. 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. 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. 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.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. 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)G7FEK Limited Space Antenna. G7FEK Multi-band “Nested Marconi” Antenna - 2008 Version (rev 5) 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 ...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 ... 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.
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. . Rindex
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 . It is a multiband HF antenna which works on 80,40,30, (20 see later),17,15,12,10 (with ATU) sounds too good to be true…. The G7FEK comes in at about 14m, again perfect! So lets start building. Two lengths of wire and 7.4m of ladder line, plus some old cable for the counterpoise or earthing. In total it cost about £15 for the ladder line.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. G7FEK. Broadcasting · United Kingdom · <25 Employees . G7FEK now operates mostly portable and low power (QRP), including a 100% Solar Powered station, plus various special event stations.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 ... Aug 14, 2023 · 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 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. © 1988 - 2009 Mike Dennis, G7FEK. - Website: www.g7fek.co.uk - updated: 27 March 2010 G7FEK Limited Space Antenna G7FEK Multi-band “Nested Marconi” Antenna ...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.G7FEK Profile and History. G7FEK now operates mostly portable and low power (QRP), including a 100% Solar Powered station, plus various special event stations.G7FEK Amateur Radio Station is based in North Wiltshire, England and can be heard on Shortwave and VHF Amateur Radio bands. G7FEK now operates mostly portable and low power (QRP), including a 100% Solar Powered station, plus various special event stations. Here you will find interesting regular posts relating to Amateur and CB Radio, Astronomy ...folding and twisting the wire back on itself (No need to cut it). When you have tuned resonance to 3.7 and 7.1 MHz, the antenna is<br />. ready for use on all other bands. Initially, you might want to make the wires a little longer than shown to allow for a wider range of<br />.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 . © 1988 - 2009 Mike Dennis, G7FEK. - Website: www.g7fek.co.uk - updated: 27 March 2010 G7FEK Limited Space Antenna G7FEK Multi-band “Nested Marconi” Antenna ...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 ...© 1988 - 2009 Mike Dennis, G7FEK. - Website: www.g7fek.co.uk - updated: 16 March 2009 G7FEK Limited Space Antenna G7FEK Multi-band “Nested Marconi” Antenna ....