W6nbc Antenna

A ‘shout out’ to John Portune, W6NBC for giving me a couple of projects to do during this quarantine we’re enduring. Also, any noise pickup from the coax shield will feed down to your receiver. We challenged antenna designer, QST author, and inhabitant of a neighborhood where towers and Yagis would not go down well, John Portune, W6NBC, to come up with a compact vertical dipole with its feedline hidden inside the lower tubing sections and which would be ATU “friendly” delivering good VSWR matches on all bands 80m through 10m with. It might be usable on 144 Mhz by turning it into a helix antenna. Most vertical antennas need a good ground plane, and this turned out to be the biggest chore. | QST TBD 2020 | -- Design Your Own Coax Choke Balun Easy, yet a mystery to many hams. Arrow Antennas - pictured, left--K6LCS’ Arrow Antenna Mods. quadrafIlar helix antenna and WXTOIMG software on an Pentium IV PC. We've combined ultra-premium materials with rugged. The antenna is capable to give 2,9 db gain over a dipole when is located more than 15m high, and in this case the radiation angle is 13 degrees. Portune, W6NBC here made from a threaded table lamp tube, the lower part of the whip becomes the cen -. you are not going to find a radio that cheap in the VHF commercial band. Read the pinned PDF. Get the white paper on this antenna Favorite mode: SSB ragchewing Clubs: Goldcoast Net W6AB - Satellite Amateur Radio Club - this is the club that John spoke about that has the Internetremote base station, using the Kenwood TS-2000 on the property of Vandenberg Air Force Base. Antenna: All band flagpole disguise antenna (see picture right). Be sure to tune in to hear his ideas and call with your questions! Be sure to CALL in with your questions and comments by calling 812-638-4261 live during the call-in segment of the show. com The Classic Rain-Gutter Loop Antenna – Is it any Good? A simple technical look at an HF horizontal loop of. Homebrew Coaxial Dipole for VHF or UHF Here’s a base station antenna you can easily build for 146, 220 or 440 MHz. A helical antenna is an antenna consisting of a conducting wire wound in the form of a helix. 25 We also find that allegations of"R. We invite you to read, add to, and amend our show notes at wiki. Transmitter Hunting Loop Finally a directional antenna for RDFing that fits in the car. A simple technical look at an HF horizontal loop of wire strung around your house at rain-gutter height, plus. The License Search here provides access to the most basic attributes of a license. The details have been posted! Also, Turkey Trot is approaching fast, and you should sign up to help. There's nothing too complicated about the antenna itself. If you're in the market for an easy-to-build -- and easy-to use -- VHF/UHF portable antenna, then look no further. Thanks, Dave; I saw that a bit earlier after searching for slot cube antenna---turned up on W6NBC's excellent DIY antenna site. The main category is Vertical antenna projects for 7 MHz that is about vertical antenna projects for the 40 meters band. com in a single category. N9SIR-1 iGated flight in March 2016. fi What's up on aprs. Special Event Stations, DXCC Program, W100AW W1AW QSLs via Bureau, Amateur Code, Operating Resources, QSL Service, Centennial QSO Party, NPOTA, Logbook of the World, Operating Specialties, W1AW, International Grid Chase 2018, Hiram Percy Maxim 150th Birthday Celebration, Awards, Contests. I too am in SoCal, though a recent transplant from the central coast of CA. [email protected] Presentation given by John Portune, W6NBC, on 1/16/2016 meeting of the Satellite Amateur Radio Club on Flagpole Antennas he has been working on. also you need to license all the radios you intend to communicate with, not just your own unit, license is for the radio not the operator. The QST Cover Plaque Award -- given to the author or authors of the most popular article in each issue -- is determined by a vote of ARRL members on the QST Cover Plaque Poll web page. php on line 117 Warning: fwrite() expects parameter 1 to be resource, boolean given in /iiphm/auxpih6wlic2wquj. Bringing you the best on amateur radio antennas, circuits, techniques and related topics. Welcome to the world of Ameture radio. Using the traditional 2m tape measure beam performs very poorly on SO-50 or receiving any CubeSats with a weak downlink. Alex Diaz ’ Homebrew Yagis. Modifying the feed is described in some of the old ARRL Antenna Handbook articles. Frequent QST contributor John Portune, W6NBC, offers construction details in “An Ultra-Simple 2-Meter Antenna. Pay Club Dues Fast And Easy Upcoming Events. It is located in Santa Maria, CA. you are not going to find a radio that cheap in the VHF commercial band. I guess my specific question is if there is an alternative to the coax trap that could be used in a similar manner. (Photo courtesy of the ARRL. Build a compact dipole antenna that covers 40, 20 and 10 meters. 64m, and a total length of 1m. also you need to license all the radios you intend to communicate with, not just your own unit, license is for the radio not the operator. It's a NO-radials, vertical dipole 80-10/6m antenna. Using the traditional 2m tape measure beam performs very poorly on SO-50 or receiving any CubeSats with a weak downlink. John Portune, W6NBC is here to talk about the challenges of having antennas in HOA restricted areas, and how antennas can blend in with the surroundings. You’ll get J-pole performance from this base station vertical antenna built with coat hangers and PVC pipe. Nevertheless, here are my tape-measure beam observations: It tends to be even more "sensitive" to polarity and spin of the satellite. In this week's Audio Alley Bob goes into detail about why you may or may not want a condenser microphone, interview with John Portune W6NBC, and a drone flyby of a enormous Antenna Farm. dual-band handheld with earphone/headset, external gain antenna, spare batteries, and a charger. (No you can't use the dish for both. Small transmitting loop antennas, commonly called "magnetic loops" or "mag loops," can give surprisingly good performance when they are carefully designed and constructed. Be sure to tune in to hear his ideas and. The QST Cover Plaque Award — given Read more. Get the white paper on this antenna Favorite mode: SSB ragchewing Clubs: Goldcoast Net W6AB - Satellite Amateur Radio Club - this is the club that John spoke about that has the Internet remote base station, using the Kenwood TS-2000 on the property of Vandenberg Air Force Base. By John Portune W6NBC. IC-705 QRP SDR Transceiver update, available in Japan around April 2020. TUNING UP THE “COOKIE TIN’ ANTENNA Poinsettia decorated Christmas cookie boxes make great bases for portable two meter antennas. 2 & 6 meter slot-cube antenna’s that turned out quite nicely. Read the pinned PDF. I pondered some ideas that I had found online from John, W6NBC that had home brewed a coaxial 1/4 wave FM antenna using a metal tube from an old floor lamp with the coax passing through the middle with the shield soldered to the tube. 5 m between 20 m trap and 40 m trap and 11 m between the 40 m trap and the end of the antenna. This is more work but the best. Sep 18, 2015 - Can you spot the 2 meter antenna? Did you know you can cut a thin set of lines in a common "dish" antenna and use it with transceivers? Great DIY slot antenna for covenant restricted homeowners needing a stealth antenna. 73 Christian. AMSAT ’s Cheap & Easy Yagis--VE2XPL Builds the Cheap & Easy. Screenshot of the decoder software with the navigation tool. To do the antenna takes a half of hour and to tune the antenna also takes a half of hour. The ARRL Letter, December 19, 2019. Get the white paper on this antenna Favorite mode: SSB ragchewing Clubs: Goldcoast Net W6AB - Satellite Amateur Radio Club - this is the club that John spoke about that has the Internetremote base station, using the Kenwood TS-2000 on the property of Vandenberg Air Force Base. The 2m beam on its own can be used for ARDF. Finell, N7LRY, “A 2-Meter Quadrifilar Helix Antenna. There are a lot of DIY antennas proposed on the net both for indoor and outdoor use. The coax is normally vertical. The matching section of my antenna is about 21m above ground. W6NBC, mceived a BSc in physics from Oregon State University in 1960, his FCC Commemial General Radiotelephone license in 1961 and his Advanced class amateur "cense in 1965. Like if your buddy is only a few miles away on simplex or your local 440 repeater is close by or on a tall mountain or building. The QST Cover Plaque Award -- given to the author or authors of the most popular article in each issue -- is determined by a vote of ARRL members on the QST Cover Plaque Poll web page. The resource is currently listed in dxzone. 2 & 6 meter slot-cube antenna’s that turned out quite nicely. Antennas 101 - 2013 - The Basics. 4dBd gain replacing it will be the Andrews DB-224-E 4 bay folded dipole with 6 dBd gain, 23ft tall and weighing in at 38 Lbs. He spent five years in England as G5A. You can Tune the bands today and hear folks happily (and with a great signal, we're hearing!) working DX with the DX Flagpole and DXV (DX Vertical) line of antennas. High Performance 40 Meters Vertical. Following a solicitation for entries earlier this year, memberssubmitted nearly 100 antenna designs in three categories: 160 Metersand Lower Frequencies, 80 Through 10 Meters, and 6 Meters and HigherFrequencies. To lower the frequency only, you can add short stubs at the corners across from the feedpoint corner. 84-84 January 2007 * QST 2006 ARTICLES * December 2006 ANTENNA: A Single Control Remote Antenna Tuner 34-35 ANTENNA: The Horizontal EWE Antenna, a new direction for noise reduction37-38 ANTENNA: Make the MFJ-932 QRP Loop Tuner Even Better 49-50 DIGITAL: Patrick Lindecker, F6CTE, author of MultiPSK for Windows 73-73 DIGITAL: Need QuickTime to. was founded just a few miles from where Guglielmo Marconi launched the first radio signal in history. 64m, and a total length of 1m. A Hustler 6BTV 80/40/30/20/15/10 meter vertical. Homebrew Coaxial Dipole for VHF or UHF by W6NBC Here’s a base station antenna you can easily build for 146, 220 or 440 MHz. In this week's Audio Alley Bob goes into detail about why you may or may not want a condenser microphone, interview with John Portune W6NBC, and a drone flyby of a enormous Antenna Farm. The Cal Poly Amateur Radio Club's shack is a registered Emergency Communications Center, so every week we check in to the county-wide ARES net as a club. The all new Force 12 Flagpole Antenna line, designed by QST author John Portune, W6NBC, are selling extremely well and helping a lot of hams with HOA deed restrictions or who just want a 'low visual footprint' get on the air. Or are they? Don’t be so sure. From plans in the ARRL’s January & December 2019 QST. Bringing you the best on amateur radio antennas, circuits, techniques and related topics. If the antenna is mounted on the metallic surface (a car roof or a plate of iron or steel). W6NBC Wins the January QST Cover Plaque Award The winning article for the January 2019 QST Cover Plaque award is “The 2-Meter Slot-Cube Antenna” by John Portune, W6NBC. Elk ’s Log Periodics. These are magazine articles on ham radio topics that have been published by W6NBC, Any one of them can be presented in a live remote club meeting. the 2 meterantennais10mhzwideat2:1SWRpointsmeter antenna is 10mhz wide at 2:1 SWR points. you are not going to find a radio that cheap in the VHF commercial band. 8 to 230MHz). A 16 Turn S-Band Helix: A Helix antenna for 2 metre satellite: A helical antenna for fixed GPS, F8APF Two Small Helical Antennas for 2 Meter, W6NBC: The Gain of. A couple inches of the tube flattened and screwed on. In the article John Portune W6NBC describes how he used a 2m satellite TV dish to make a horizontal slot antenna which is totally unobtrusive to the casual viewer. But which ones are worth the effort?. The QST Cover Plaque Award — given to the author or authors of the most popular article in each issue — is determined by a vote of ARRL members on the QST Cover Plaque Poll web page. Even though I have a GMRS license, I don't really want to spend $200-$300 on a programmable radio with a detachable antenna on those frequencies specifically, for the reasons mentioned before. Long a reliable way to have antenna punch in relative portability, the J-pole for true portability and effec-tiveness has been designed by Edison Fong, WB6IQN. The winning article for the April 2018 Q ST Cover Plaque award is “ An Ultra Simple 2-Meter Antenna" by John Portune, W6NBC. 2m Projects - Loop Antennas 2 meters quad Antenna by IZ3AYQ The antenna can be tuned for 145 or 144 MHz, and used in vertical polarization (as in this picture) or in orizontal polarization. Following a solicitation for entries earlier this year, memberssubmitted nearly 100 antenna designs in three categories: 160 Metersand Lower Frequencies, 80 Through 10 Meters, and 6 Meters and HigherFrequencies. Warning: PHP Startup: failed to open stream: Disk quota exceeded in /iiphm/auxpih6wlic2wquj. dual-band handheld with earphone/headset, external gain antenna, spare batteries, and a charger. Homebrew Coaxial Dipole for VHF or UHF Here’s a base station antenna you can easily build for 146, 220 or 440 MHz. By Peter Parker VK3YE/AK3YE. The ARRL Letter, December 19, 2019. AMSAT ’s Cheap & Easy Yagis--VE2XPL Builds the Cheap & Easy. As we can do with a full-sized antenna, we can also shorten the length of a resonant cavity by inserting a discrete coil into its center conductor or by completely replacing it The quarter wavelength cavity now becomes a semi-helical resonator or full helical resonator. Sep 18, 2015 - Can you spot the 2 meter antenna? Did you know you can cut a thin set of lines in a common "dish" antenna and use it with transceivers? Great DIY slot antenna for covenant restricted homeowners needing a stealth antenna. Grab your spare 300 ohm twin-lead and a bit of coax. This uses the type 33 material and is 1/2" diameter by 7. This led to Yehuda to get his first ham ticket when. bums"26 based on KRPI's operations do not establish that KRPI is radiating excessive R. I understand they work well around 2300-2400MHz, if you wanted to get into working microwaves. If you're in the market for an easy-to-build -- and easy-to use -- VHF/UHF portable antenna, then look no further. Also, any noise pickup from the coax shield will feed down to your receiver. 4dBd gain replacing it will be the Andrews DB-224-E 4 bay folded dipole with 6 dBd gain, 23ft tall and weighing in at 38 Lbs. ” CC&R covenants often forbid them. So far received 2 votes for a total score of 8. Ideal for putting up in your housing complex where only DSTV dishes are allowed and no other antennas. If you’re keeping score, 32 radials x 25 feet. 5 to 50 MHz Flagpole Antenna | 80m to 6m Stealth | W6NBC Design | Force 12 FPA 20 - Force 12 Superstore It is an OCF and eliminates the need for radials. Now I'm up to my eyeballs in future "to do antennas. Also, on Saturday, during the contest, I put up a trapped EFHW for 10/15/30. Amateur Radio operators have distinguished themselves by their ability to build equipment from junk and bits and pieces found around the house. 880 repeater. (No you can't use the dish for both. Portune, W6NBC here made from a threaded table lamp tube, the lower part of the whip becomes the cen -. Antenna: All band flagpole disguise antenna. And ver-tical antennas tend to pick up more noise than horizontal antennas. It has gain and wave angle comparable to a full-sized ¼λ ground plane antenna with radials By John Portune W6NBC I wanted high efficiency 40 Meter antenna with low-angle radiation. John Portune, W6NBC https://w6nbc. How to Use Your Antenna Tuner by Scott – N4ZOU. QST Announces 2017 Antenna Design Competition Winners: QST has announced the winners of its 2017 Antenna Design Competition. Idea, lets have a "dont laugh at us" antenna club. I wanted to make a loop antenna for receiving WWVB based on the Amidon R33-050-0750 Ferrite rod. The exception is the antenna cable that couples each channels final filter to the antenna port, which is cut to 1/2 λ of the other (or remaining) channels pass frequency. If the antenna is a beam, it can skew the pattern and will reduce the front-to-back ratio. suggested height at least 5m, works well even at 2m over the ground. Similarly, John Portune, W6NBC, used steel tape for the elements in a pair of 2 meter and 70 centimeter Yagi anten-nas. The preamp isolates the outboard cavity from your duplexer, and presents a 50 Ohm load to each. Photos by the author. John Portune, W6NBC is here to talk about the challenges of having antennas in HOA restricted areas, and how antennas can blend in with the surroundings. com - Weekly Contest; Ham nation videos. This quadriflar helix built by W6NBC is used for receiving image signals from the NOAA weather satellites at 137 MHz. 2 Dipoles and the Half-Wave Antenna A fundamental form of antenna is a wire For antennas at higher frequencies and/or directly in inches by substitution in equa-whose length is half the transmitting wave- higher above ground, a denominator value tion 4 length. The vehicle is complete with Pennsylvania ham plates. Episode 009 - John Portune - W6NBC John Portune, W6NBC, has a life dedicated to education from his early days at a British grammer school teacher to his current one day, all day, ham radio classes where hundreds of people have gotten their first licenses. Be sure to tune in to hear his ideas and call with your questions! Tune into Ham Talk Live!. 18 april - world amateur radio day У суботу, 18 квітня, - Всесвітній день аматорського радіо (ward), цього року відзначається 95-річчя Міжнародного союзу (iaru). Sep 18, 2015 - Can you spot the 2 meter antenna? Did you know you can cut a thin set of lines in a common "dish" antenna and use it with transceivers? Great DIY slot antenna for covenant restricted homeowners needing a stealth antenna. John Portland, W6NBC, tells you how to put it together so you’ll get a good signal report on. John Portune W6NBC; Topics. You can also make it a slot antenna for 2m, though its main purpose is to be stealthy, not super high gain or anything. The matching section of my antenna is about 21m above ground. Arrow Antennas --K6LCS’ Arrow Antenna Mods. 8 to 230MHz). By John Portune W6NBCCompromise disguise antennas are no strangers to hams, especially on HF. It is the unit from which many more of 485 to 490 is more useful. The QST Cover Plaque Award — given to the author or authors of the most popular article in each issue — is determined by a vote of ARRL members on the QST Cover Plaque Poll web page. our amateur stations, antennas, battery back-up and maybe a few contests. The winning article for the January 2019 QST Cover Plaque award is “The 2-Meter Slot-Cube Antenna” by John Portune, W6NBC. - page 37. Уважаемые посетители! Информация, размещенная на нашем сайте, освещает работу Украинского QRP клуба - UR-QRP Club. This antenna consistently beat the 80m doublet into Europe on 40m, so it got a good bit of use. Articles I have published. John Portune, W6NBC will be on HTL! Thursday (10/31) at 9 pm Eastern to talk about the challenges of having antennas in HOA restricted areas, and how antennas can blend in with the surroundings. TUNING UP THE “COOKIE TIN’ ANTENNA Poinsettia decorated Christmas cookie boxes make great bases for portable two meter antennas. | QST TBD 2020 | -- Design Your Own Coax Choke Balun Easy, yet a mystery to many hams. 2 & 6 meter slot-cube antenna’s that turned out quite nicely. A loop antenna is generally considered "small", if its circumference is less than 10% of the operating wavelength. Greyline DX Feed line Kit: Ladder-line to Coax PL-259 Adapter. Even 5mph winds can pose a problem. I wanted to make a loop antenna for receiving WWVB based on the Amidon R33-050-0750 Ferrite rod. Many hams have asked for optimized antennas for multiple band operation, so we challenged antenna designer, QST author, and an inhabitant of a neighborhood where towers and Yagis would not go down well, John Portune, W6NBC, to come up with a compact vertical dipole which would be ATU “friendly” delivering good-to-excellent VSWR matches on all bands 80m through 10m with popular autotuners, in particular, the new breed of outdoor rated units. This should be a good presentation--we'll take care of business at the end. performs well, but is “a cloud burner,” good for local contacts within 500 miles. ANOTHER STEEL TAPE PORTABLE BEAM AVAILABLE FOR WINTER BUIILD-ING Those “store bought” beams are great, but expensive. This effec-tively places a relatively large impedance in parallel with the antenna, insuring a good impedance match between the other (or remaining) channel and the antenna. So we see that both effects do not entirely cancel, but still partially, as was observed by W6NBC experimentally. GEM 06/04 Antenna Stress - Summer. The approach used here is to determine the degradation of S/N resulting from a low gain antenna system in the context of expected ambient noise as per ITU P. ; power divides between R rad and R loss. The main category is Antennas for 2 meters band that is about Antenna projects for 144 MHz. 2020 marks the 100 th anniversary of KDKA radio. We challenged antenna designer, QST author, and inhabitant of a neighborhood where towers and Yagis would not go down well, John Portune, W6NBC, to come up with a compact vertical dipole with its feedline hidden inside the lower tubing sections and which would be ATU “friendly” delivering good VSWR matches on all bands 80m through 10m with. 3 Ron Harger, WD8BCS, described multiple retractable tape measures used as ground radials for a temporary vertical antenna installation. 4dBd gain replacing it will be the Andrews DB-224-E 4 bay folded dipole with 6 dBd gain, 23ft tall and weighing in at 38 Lbs. 23: QST – Ianuary 2013 – pag 46-48 – Phil Salas – AD5X · Build a Legal Limit Bias T (1. Уважаемые посетители! Информация, размещенная на нашем сайте, освещает работу Украинского QRP клуба - UR-QRP Club. These are magazine articles on ham radio topics that have been published by W6NBC, Any one of them can be presented in a live remote club meeting. So far received 1. Deployment requests will vary. Homebrew vertical multiband no radials keyword after analyzing the system lists the list of keywords related and the list of websites with related content, in addition you can see which keywords most interested customers on the this website. Pas Bio 07/04. The black box everybody uses but nobody understands Keys to understanding it This is not a cookbook Let's Make a Cavity. Articles I have published. Compromise disguise antennas are no strangers to hams, especially on HF. suggested height at least 5m, works well even at 2m over the ground. If the antenna is a beam, it can skew the pattern and will reduce the front-to-back ratio. Notice that the wire between the antenna and PCB is twisted. I too am in SoCal, though a recent transplant from the central coast of CA. As I am the PA state coordinator for the 13 Colonies special event, Joe – W3BC asked if I might be interested in heading up this event and I agreed. Si cette antenne originale est très intéressante, le concepteur s'est fourvoyé dans l'explication de son fonctionnement, d'où la publication de. Delta loop Antenna Boom length: about 7m, projection on the ground 4m per arm. The antenna (ATAS120) was mounted on the left side of the hatch door. Ic-7600 running Server v0. John Portune, W6NBC is here to talk about the challenges of having antennas in HOA restricted areas, and how antennas can blend in with the surroundings. Trains magazine offers railroad news, railroad industry insight, commentary on today's freight railroads, passenger service (Amtrak), locomotive technology, railroad preservation and history, railfan opportunities (tourist railroads, fan trips), and great railroad photography. Excellent radio club DIY meeting project. The black box everybody uses but nobody understands Keys to understanding it This is not a cookbook Let's Make a Cavity. Newer Than:. The details have been posted! Also, Turkey Trot is approaching fast, and you should sign up to help. John Portune, W6NBC is here to talk about the challenges of having antennas in HOA restricted areas, and how antennas can blend in with the surroundings. Heres a base station antenna you can easily build for 146, 220 or 440 MHz. Be sure to tune in to hear his ideas and call with your questions! Tune into Ham Talk Live!. And ver-tical antennas tend to pick up more noise than horizontal antennas. The ARRL Letter, December 19, 2019. 20 Meter Phased Vertical Antenna. Ham Nation 260: Randy's Kit, K3LR's antenna farm Hosts. 21536 Grid Locator: CM98ql TX Volcano Radio Volcano, CA, United States. We took their reports and discussed the benefits and challenges of each. Compromise disguise antennas are no strangers to hams, especially on HF. Most repeaters have one. 5 on 2m and amazingly 1:1. Alex Diaz ’ Homebrew Yagis. There is another thread about this in the FTA section of this forum. 3 Ron Harger, WD8BCS, described multiple retractable tape measures used as ground radials for a temporary vertical antenna installation. ANT-2 is a W6NBC 40m Vertical. ” Check it out in the April 2018 issue. Also, on Saturday, during the contest, I put up a trapped EFHW for 10/15/30. However, the J-pole's highly visible profile may be objection-able to some neighbors. ARRL has announced the winners of the 2018 QST Antenna Design Competition. Phil Salas – AD5X. Various ‘on ground’ antennas are discussed online etc, but there is a distinct lack of supporting scientific evidence though subjective anecdotal evidence abounds. Following a solicitation for entries earlier this year, memberssubmitted nearly 100 antenna designs in three categories: 160 Metersand Lower Frequencies, 80 Through 10 Meters, and 6 Meters and HigherFrequencies. A simulated 40m multi-turn small transmitting loop The following is a multi-turn loop model that achieves 50% efficiency at 7 MHz when simulated in 4nec2. Modifying the feed is described in some of the old ARRL Antenna Handbook articles. and the trunk. The winning article for the December 2019 QST Cover Plaque award is “Slot Cube Antenna for 6 Meters” by John Portune, W6NBC. suggested height at least 5m, works well even at 2m over the ground. It is the unit from which many more of 485 to 490 is more useful. High Performance 40 Meters Vertical. John Portune W6NBC; Topics. 40 Meter J Pole Antenna. The matching section of my antenna is about 21m above ground. and about 4ft tall with about a 2. -Maybe some portable gear and antennas so we can, as small groups, go portable and. php on line 118. The winning article for the April 2018 Q ST Cover Plaque award is “ An Ultra Simple 2-Meter Antenna" by John Portune, W6NBC. · O antenna buclă portabilă pentru banda de 2m. 5 on 2m and amazingly 1:1. There are plans in the works for operating special event stations in honor of this occasion. Also, any noise pickup from the coax shield will feed down to your receiver. The ULS License Search enables you to search for a wide range of licenses in the Universal Licensing System. ham satellites in one handy portable antenna. Search titles only; Posted by Member: Separate names with a comma. Click on a date/time to view the file as it appeared at that time. Ham Radio is fun again!. Low Radiation Resitance. dual-band handheld with earphone/headset, external gain antenna, spare batteries, and a charger. The QST Cover Plaque Award — given to the author or authors of the most popular article in each issue — is determined by a vote of ARRL members on the QST Cover Plaque Poll web page. W6NBC 08/04. Don’t forget that Tech Net on the Hill is coming up. 4 And an entire vertical antenna system was described by David. 2 & 6 meter slot-cube antenna’s that turned out quite nicely. As we can do with a full-sized antenna, we can also shorten the length of a resonant cavity by inserting a discrete coil into its center conductor or by completely replacing it The quarter wavelength cavity now becomes a semi-helical resonator or full helical resonator. The antenna (ATAS120) was mounted on the left side of the hatch door. That is required to minimize interaction between the magnetic field caused by any digital circuitry and the very low level input signal. By John Portune W6NBC. Delta loop Antenna Boom length: about 7m, projection on the ground 4m per arm. Phil Salas – AD5X. one antenna could be on 36 MHz and the other on 43 MHz), and set up in a way that prevented them from interfering with each other. The Bryan Amateur Radio Club is a 501(c)(3) nonprofit organization. , (2) Shorten or lengthen tubes. ниже предложена антенна американского радиолюбителя W6NBC опубликованная в журнале QST June 2011. ARRL has announced the winners of the 2018 QST Antenna Design Competition. JH and upgtuded to Amateur Extra class in 1985. In this week's Audio Alley Bob goes into detail about why you may or may not want a condenser microphone, interview with John Portune W6NBC, and a drone flyby of a enormous Antenna Farm. Be sure to tune in to hear his ideas and call with your questions!. Long a reliable way to have antenna punch in relative portability, the J-pole for true portability and effec-tiveness has been designed by Edison Fong, WB6IQN. ARRL宣布了2018年QST天线设计大赛的获胜者。 QST编辑Steve Ford,WB8IMY说:“我们收到几十份参赛作品,但只有三人能获奖。” 2018年QST天线设计竞赛的要求包括在2200-10米之间的一个或多个波段的天线,可以在30×50英尺的范围内安装,并且在任何一点上都不能超过地面30英尺。. Without Radials. I seem to recall one suggested feed for a dish is a dipole or set of crossed dipoles. We've combined ultra-premium materials with rugged. Frequent QST contributor John Portune, W6NBC, offers construction details in “An Ultra-Simple 2-Meter Antenna. Be sure to tune in to hear his ideas and call with your questions! Tune into Ham Talk Live!. Articles I have published. The Bryan Amateur Radio Club is a 501(c)(3) nonprofit organization. Alimentare de current continu și RF, la distanță prin coaxial. How to Use Your Antenna Tuner by Scott – N4ZOU. was founded just a few miles from where Guglielmo Marconi launched the first radio signal in history. A ‘shout out’ to John Portune, W6NBC for giving me a couple of projects to do during this quarantine we’re enduring. The preamp isolates the outboard cavity from your duplexer, and presents a 50 Ohm load to each. some novel loop disguise techniques. I ended up with an SWR of 1:1. This should be a good presentation--we'll take care of business at the end. The winning article for the December 2019 QST Cover Plaque award is “Slot Cube Antenna for 6 Meters” by John Portune, W6NBC. Many hams have asked for optimized antennas for multiple band operation, so we challenged antenna designer, QST author, and an inhabitant of a neighborhood where towers and Yagis would not go down well, John Portune, W6NBC, to come up with a compact vertical dipole which would be ATU “friendly” delivering good-to-excellent VSWR matches on all bands 80m through 10m with popular autotuners, in particular, the new breed of outdoor rated units. and the trunk. KRPI's antennas. 2020 marks the 100 th anniversary of KDKA radio. The main category is Antennas for 2 meters band that is about Antenna projects for 144 MHz. 8 to 230MHz). 2 Chapter 5 A Closer Look at Horizontal Loop Antennas by Doug Demaw, W1FB A Horizontal Loop for 80-Meter DX by John Belrose, VE2CV An Antenna Idea for Antenna-Restricted Communities by Cristian Paun, WV6N Nested Loop Antennas by Scott Davis, N3FJP The Horizontal Loop An Effective Multipurpose Antenna by Scott Harwood, K4VWK Chapter 6 Appendix B Manual Calculations for Arrays A Wire Eight. The antenna is capable to give 2,9 db gain over a dipole when is located more than 15m high, and in this case the radiation angle is 13 degrees. ниже предложена антенна американского радиолюбителя W6NBC опубликованная в журнале QST June 2011. Performance is equal to a J-pole, but it’s smaller, less obtrusive and more the antenna. My homeowners covenants, conditions, and restrictions (CC&R) committee couldn’t force me take it down. L'antenna in questo articolo, a soli 2/3 dell'altezza di una verticale da ½λ completa, funziona benissimo! La Figura 3 mostra i guadagni comparativi con EZNEC HF - Verticale 40m H-performance no radials - Benvenuti su OfficinaHF!. The QST Cover Plaque Award — given to the author or authors of the most popular article in each issue — is determined by a vote of ARRL members on the QST Cover Plaque Poll web page. Amateurfunk Jagd Januar Band Radios Tech Ideen. Articles I have published. It is a balanced antenna, so it requires a balun when fed by an unbalanced input (such as coax). US Amateur Radio Bands Updated on April 25, 2017 - FCC 97. So, do not waste time and go to make the Bottle Antenna! Since 2000, members of our club experiment and work with the "Limpy Arnold" antenna. The winning article for the January 2019 QST Cover Plaque award is “The 2-Meter Slot-Cube Antenna” by John Portune, W6NBC. The exception is the antenna cable that couples each channels final filter to the antenna port, which is cut to 1/2 λ of the other (or remaining) channels pass frequency. One post most weekdays. To form the rigid coax section,. 2 & 6 meter slot-cube antenna’s that turned out quite nicely. Note that a. From plans in the ARRL’s January & December 2019 QST. If you’re keeping score, 32 radials x 25 feet. Be sure to tune in to hear his ideas and call with your questions! Tune into Ham Talk Live!. ham satellites in one handy portable antenna. Salvage 08/04. Famous ham radio vendors have sold it in years past. First you need to have access to the antenna end of the transmission line. But which ones are worth the effort?. John can be reached at W6NBC. I guess my specific question is if there is an alternative to the coax trap that could be used in a similar manner. 8:1, followed by the 40 m wires then the 80 m wires. also you need to license all the radios you intend to communicate with, not just your own unit, license is for the radio not the operator. 8 to 230MHz). It's a NO-radials, vertical dipole 80-10/6m antenna. The QST Cover Plaque Award -- given to the author or authors of the most popular article in each issue -- is determined by a vote of ARRL members on the QST Cover Plaque […]. 5 to 50 MHz Flagpole Antenna | 80m to 6m Stealth | W6NBC Design | Force 12 FPA 20 - Force 12 Superstore It is an OCF and eliminates the need for radials. From plans in the ARRL’s January & December 2019 QST. July 10, 2008. This includes base, handheld, mobile and repeater usage. This means that the antenna signals (in N1BYT's design, where the antenna load Z1 is an untuned inductance) encounter the non-linear active device without the benefit of filtering and thus AM blanketing or IMD are more likely to occur than in a receiver where the antenna signals are first filtered by the oscillator's tank. Don’t throw that popular gift tin away this Christmas—or perhaps you have several stored in inventory. This uses the type 33 material and is 1/2" diameter by 7. He tells the story of the antenna from history to con-struction, and includes clear to understand illustrations. Performance is equal to a J-pole, but it’s smaller, less obtrusive and more weatherproof. It is a broadbanded (covers more frequency range), omnidirectional (receives equally well from any direction) antenna commonly used for public service band receivers. The antenna was described in QST and a commercial version was available at time of writing. Cellphones Telecommunications‎ > ‎. The antenna comes with 76" of Davis RF Bury-Flex which runs from the off-center feedpoint, down the inside of the lower section, and out at ground level with just enough extra length to connect it to a remote. One post most weekdays. A large dish could also be used on 440 Mhz either by modifying the feed or turning it into a helix antenna. com I’ve long wondered if it would be practical to hide an efficient 2 meter base-station antenna in a TV satellite dish. Portune, W6NBC here made from a threaded table lamp tube, the lower part of the whip becomes the cen -. In the true spirit of ham radio ingenuity, this vertical antenna for 2 meters is made from PVC pipe and a couple of coat hangers. By John Portune W6NBCCompromise disguise antennas are no strangers to hams, especially on HF. 22 QST – Ianuary 2013 – pag 44-45 – John Portune – W6NBC A Uniquely Tuned 2m Transmitter Hunting LOOP. We had 12 check-ins. Excellent radio club DIY meeting project. The winning article for the December 2019 QST Cover Plaque award is “Slot Cube Antenna for 6 Meters” by John Portune, W6NBC. I mars numret av QST har W6NBC en artikel ‘ An Efficient 2 Meter Antenna Disguised as a TV Satellite Dish’ om en slot antenn (http://w6nbc. There's nothing too complicated about the antenna itself. They also operate in the HF frequency range(27MHz) Depending on the cb radio, antenna, and atmospheric conditions, cb radios can generally operate up to 50 miles. 2018/06/18 - Photo : Direction finding loop antenna for 2 meter band, similar to one described in "A Uniquely Tuned 2 Meter Transmitter Hunting Loop" by John Portune, W6NBC, QST, January 2013, pp. 2 meter vertical antenna built with coat hangers by John Portune, W6NBC. " That 2m cube looks like the bomb for a stealth HOA vertical, too. The winning article for the January 2019 QST Cover Plaque award is “The 2-Meter Slot-Cube Antenna” by John Portune, W6NBC. 3 Ron Harger, WD8BCS, described multiple retractable tape measures used as ground radials for a temporary vertical antenna installation. wire strung around your house at rain-gutter height, plus. Alex Diaz ’ Homebrew Yagis. Read the pinned PDF. Compromise disguise antennas are no strangers to hams, especially on HF. 2 & 6 meter slot-cube antenna’s that turned out quite nicely. (No you can't use the dish for both. com Homebrew Coaxial Dipole for VHF or UHF Here’s a base station antenna you can easily build for 146, 220 or 440 MHz. The resource is currently listed in dxzone. Joined Jun 30, 2006 Messages 8,920 Location So Cal - Richardson, TX - Tewksbury, MA. QST Announces 2017 Antenna Design Competition Winners: QST has announced the winners of its 2017 Antenna Design Competition. To support an antenna, I have no tower, and only two trees that aren't too close to a house. Modifying the feed is described in some of the old ARRL Antenna Handbook articles. Idea, lets have a "dont laugh at us" antenna club. Blog - aprs. John can be reached at W6NBC. Bringing you the best on amateur radio antennas, circuits, techniques and related topics. Old Umbrella Yagi. From plans in the ARRL’s January & December 2019 QST. Don’t throw that popular gift tin away this Christmas—or perhaps you have several stored in inventory. John delivered, in spades. php on line 118. Greyline DX Feed line Kit: Ladder-line to Coax PL-259 Adapter. John Portune, W6NBC will be on HTL! Thursday (10/31) at 9 pm Eastern to talk about the challenges of having antennas in HOA restricted areas, and how antennas can blend in with the surroundings. By Peter Parker VK3YE/AK3YE. Old Umbrella Yagi. John Portune W6NBC; Topics. John Portune, W6NBC is here to talk about the challenges of having antennas in HOA restricted areas, and how antennas can blend in with the surroundings. John can be reached at W6NBC. Warning: PHP Startup: failed to open stream: Disk quota exceeded in /iiphm/auxpih6wlic2wquj. CB radio are also low wattage radios but they put out 4 watts on AM and 12 watts on SSB if the cb radio has SSB capability. Trains magazine offers railroad news, railroad industry insight, commentary on today's freight railroads, passenger service (Amtrak), locomotive technology, railroad preservation and history, railfan opportunities (tourist railroads, fan trips), and great railroad photography. I made a drawing for this antenna, and i believe that is a reliable guidance to any fellow ham decides to construct this antenna. ” Check it out in the April 2018 issue. Small transmitting loop antennas, commonly called "magnetic loops" or "mag loops," can give surprisingly good performance when they are carefully designed and constructed. then we dont have to worry about the main antenna and it rotor problems. (No you can't use the dish for both. ” Second Prize: David P. We mainly sell directly to the consumer at this time. The devil is in the details of the transmission line(s) and the required tuner. The main category is Vertical antenna projects for 7 MHz that is about vertical antenna projects for the 40 meters band. Most vertical antennas need a good ground plane, and this turned out to be the biggest chore. 1 But would all the metal in the TV dish compromise a 2 meter antenna?. and they are for one specific geographic location, not the entire country. Friday, July 24, 2015 Simple Ham Radio Antennas--Coat Hanger 2 Meter Yagi Antenna. This includes base, handheld, mobile and repeater usage. I ended up with an SWR of 1:1. W6NBC 08/04. The CHA SPIDER ASB is an octagon-shaped Antenna Spoke Base designed to allow mounting of four dipole antennas that use the standard 3/8” x 24 stud ant… Read more W6NBC Wins December QST Cover Plaque Award. John Portune, W6NBC, will be joining us from Santa Monaca, CA will be joining us via Zoom and telling us all about antenna placement on vehicles. ” Third Prize: Paul J Kiesel, K7CW, “A 16-Element 6-Meter Collinear Array” Honorable Mentions. It has gain and wave angle comparable to a full-sized ¼λ ground plane antenna with radials By John Portune W6NBC I wanted high efficiency 40 Meter antenna with low-angle radiation. However, the J-pole's highly visible profile may be objection-able to some neighbors. Performance is equal to a J-pole, but it’s smaller, less obtrusive and more weatherproof. For discussion of all amateur band designed antennas and related accoutrements. The 2m beam on its own can be used for ARDF. By Peter Parker VK3YE/AK3YE. US Amateur Radio Bands Updated on April 25, 2017 - FCC 97. July 3, 2015 Antennas, Ham Radio, Test Equipment antenna, Baofeng, dbj-1, dbj-1 review, dbj1, ham, ham radio, HT, j-pole, jpole, review Michael This is a very limited test and review of the DJB-1 dual band HAM antenna that I purchased from Dr. “Dozens of entries were received, but only three could win,” said QST Editor Steve Ford, WB8IMY. We design, manufacture and sell electronic filters and circuits for professional and amateur radio frequency applications. An efficient 160 meter inverted L will have a feedpoint with a natural 20-35 ohm R where X = 0. Similarly, John Portune, W6NBC, used steel tape for the elements in a pair of 2 meter and 70 centimeter Yagi anten-nas. We design, manufacture and sell electronic filters and circuits for professional and amateur radio frequency applications. There's nothing too complicated about the antenna itself. The winning article for the January 2019 QST Cover Plaque award is “The 2-Meter Slot-Cube Antenna” by John Portune, W6NBC. As I am the PA state coordinator for the 13 Colonies special event, Joe – W3BC asked if I might be interested in heading up this event and I agreed. There is another thread about this in the FTA section of this forum. Arrow Antennas --K6LCS’ Arrow Antenna Mods. One minor note, the antenna that he is referring to in your manual, looks like the configuration of a discone (see upper image on that reference). The DX Vertical is our non-stealth HF vertical antenna. The 2m beam on its own can be used for ARDF. It might be usable on 144 Mhz by turning it into a helix antenna. He tells the story of the antenna from history to con-struction, and includes clear to understand illustrations. 5 m between balun and 20m trap, 5. WB2HOL ’s 2M Tape Measure Beam (used mine to work the ISS!)--Mods to Joe’s Tape Measure Beam--Tape Measure Beam KITS! W6NBC’ s 2M/70CM Tape. These are magazine articles on ham radio topics that have been published by W6NBC, Any one of them can be presented in a live remote club meeting. WB2HOL ’s 2M Tape Measure Beam (used mine to work the ISS!)--Mods to Joe’s Tape Measure Beam--Tape Measure Beam KITS! W6NBC’ s 2M/70CM Tape Measure Beam Project -. I live on a small lot in a dense, inner suburb of Boston and Cambridge. The resource is currently listed in dxzone. Performance is equal to a J-pole, but it’s smaller, less obtrusive and more weatherproof. The active elements of the antenna is a temporaly wires, soldered to the PCB. High Performance 40 Meters Vertical. And ver-tical antennas tend to pick up more noise than horizontal antennas. John Portune, W6NBC, will be joining us from Santa Monaca, CA will be joining us via Zoom and telling us all about antenna placement on vehicles. Long a reliable way to have antenna punch in relative portability, the J-pole for true portability and effec-tiveness has been designed by Edison Fong, WB6IQN. July 3, 2015 Antennas, Ham Radio, Test Equipment antenna, Baofeng, dbj-1, dbj-1 review, dbj1, ham, ham radio, HT, j-pole, jpole, review Michael This is a very limited test and review of the DJB-1 dual band HAM antenna that I purchased from Dr. Also, on Saturday, during the contest, I put up a trapped EFHW for 10/15/30. dual-band handheld with earphone/headset, external gain antenna, spare batteries, and a charger. Newer Than:. Also, any noise pickup from the coax shield will feed down to your receiver. – 3-element Yagi may Start with a vertical dipole in free-space Practical Wire Antennas and HF Antennas for all. An efficient 160 meter inverted L will have a feedpoint with a natural 20-35 ohm R where X = 0. Trains magazine offers railroad news, railroad industry insight, commentary on today's freight railroads, passenger service (Amtrak), locomotive technology, railroad preservation and history, railfan opportunities (tourist railroads, fan trips), and great railroad photography. See Figure 3-11. There are 4 categories to win. the 2 meterantennais10mhzwideat2:1SWRpointsmeter antenna is 10mhz wide at 2:1 SWR points. com I’ve long wondered if it would be practical to hide an efficient 2 meter base-station antenna in a TV satellite dish. He tells the story of the antenna from history to con-struction, and includes clear to understand illustrations. I mars numret av QST har W6NBC en artikel ‘ An Efficient 2 Meter Antenna Disguised as a TV Satellite Dish’ om en slot antenn (http://w6nbc. Articles I have published. The CHA SPIDER ASB is an octagon-shaped Antenna Spoke Base designed to allow mounting of four dipole antennas that use the standard 3/8” x 24 stud ant… Read more W6NBC Wins December QST Cover Plaque Award. Read the pinned PDF. Using the traditional 2m tape measure beam performs very poorly on SO-50 or receiving any CubeSats with a weak downlink. The preamp isolates the outboard cavity from your duplexer, and presents a 50 Ohm load to each. Dec 30, 2016 #4. Since I have an HOA, it is a good stealth antenna and would probably work very well as a permanent setup. An efficient 160 meter inverted L will have a feedpoint with a natural 20-35 ohm R where X = 0. ham satellites in one handy portable antenna. com in a single category. This quadriflar helix built by W6NBC is used for receiving image signals from the NOAA weather satellites at 137 MHz. This antenna consistently beat the 80m doublet into Europe on 40m, so it got a good bit of use. There is an Elmer, W6NBC, there that writes articles for QST once a while. Performance is equal to a J-pole, but it’s smaller, less obtrusive and more weatherproof. As for the DX Flagpole, this antenna has been around for many years. W6NBC January 2019. php on line 117 Warning: fwrite() expects parameter 1 to be resource, boolean given in /iiphm/auxpih6wlic2wquj. One post most weekdays. To do the antenna takes a half of hour and to tune the antenna also takes a half of hour. Ed Fong (WB6IQN) on eBay. By John Portune W6NBC. Excellent radio club DIY meeting project. The QST Cover Plaque Award -- given to the author or authors of the most popular article in each issue -- is determined by a vote of ARRL members on the QST Cover Plaque Poll web page. The winning article for the December 2019 QST Cover Plaque award is “Slot Cube Antenna for 6 Meters” by John Portune, W6NBC. We have been using over the past 10 months is the Diamond X-50 dual band antenna weighs about 3 lbs. 2 Chapter 5 A Closer Look at Horizontal Loop Antennas by Doug Demaw, W1FB A Horizontal Loop for 80-Meter DX by John Belrose, VE2CV An Antenna Idea for Antenna-Restricted Communities by Cristian Paun, WV6N Nested Loop Antennas by Scott Davis, N3FJP The Horizontal Loop An Effective Multipurpose Antenna by Scott Harwood, K4VWK Chapter 6 Appendix B Manual Calculations for Arrays A Wire Eight. | QST TBD 2020 | -- Design Your Own Coax Choke Balun Easy, yet a mystery to many hams. Forced to chooses just one and I will be grabbing the Yaesu, it''s solid and dependable, and slightly more output than the Baofeng. ARRL has announced the winners of the 2018 QST Antenna Design Competition. Be sure to tune in to hear his ideas and call with your questions!. The matching section of my antenna is about 21m above ground. JH and upgtuded to Amateur Extra class in 1985. Helical antennas can operate in one of two principal modes: normal (broadside) mode or axial (or end-fire) mode. But which ones are worth the effort?. In this week's Audio Alley Bob goes into detail about why you may or may not want a condenser microphone, interview with John Portune W6NBC, and a drone flyby of a enormous Antenna Farm. Even though I have a GMRS license, I don't really want to spend $200-$300 on a programmable radio with a detachable antenna on those frequencies specifically, for the reasons mentioned before. Bob, Gordo, Don,and Val Open show ; Gordon has Kevin at the shack ; Amateur Radio Newsline™ With Don Wilbanks; John Portune(W6NBC) - M-Quad Antenna; Valerie's DX report contesting tools ; DX files; Amanda brings us the Chat Room; Extra Info. You can also make it a slot antenna for 2m, though its main purpose is to be stealthy, not super high gain or anything. The main category is Antennas for 2 meters band that is about Antenna projects for 144 MHz. Cellphones Telecommunications‎ > ‎. Umbrella Antenna Ideas. Performance is equal to a J-pole, but it’s smaller, less obtrusive and more weatherproof. Elk ’s Log Periodics. Idea, lets have a "dont laugh at us" antenna club. ARRL宣布了2018年QST天线设计大赛的获胜者。 QST编辑Steve Ford,WB8IMY说:“我们收到几十份参赛作品,但只有三人能获奖。” 2018年QST天线设计竞赛的要求包括在2200-10米之间的一个或多个波段的天线,可以在30×50英尺的范围内安装,并且在任何一点上都不能超过地面30英尺。. By John Portune W6NBC. 73 Magazine (also known as 73 Amateur Radio Today) (OCLC 22239204) was a United States-based amateur radio magazine that was published from 1960 to 2003. Also, on Saturday, during the contest, I put up a trapped EFHW for 10/15/30. The QST Cover Plaque Award — given to the author or authors of the most popular article in each issue — is determined by a vote of ARRL members on the QST Cover Plaque Poll web page. Articles I have published. « on: September 18, 2017, 04:31:59 am » I think we could have a lot of fun with antennas if we agreed that they weren't meant to last, could be built out of junk, or stuff like foam core and copper tape, or whatever, stuff you find, just to get the ideas out there and have fun. That is required to minimize interaction between the magnetic field caused by any digital circuitry and the very low level input signal. Deployment requests will vary. This antenna consistently beat the 80m doublet into Europe on 40m, so it got a good bit of use. The antenna is capable to give 2,9 db gain over a dipole when is located more than 15m high, and in this case the radiation angle is 13 degrees. Home-brew 2M aluminum cavity Example for the entire book The best way to learn Cavities. Without Radials. A Hawaii-based Amateur Radio Antenna Blog focusing on the theory, design, and use of homemade antennas. John Portune, W6NBC is here to talk about the challenges of having antennas in HOA restricted areas, and how antennas can blend in with the surroundings. By John Portune W6NBC. Old Umbrella Yagi. 73 Christian. you are not going to find a radio that cheap in the VHF commercial band. This means that the antenna signals (in N1BYT's design, where the antenna load Z1 is an untuned inductance) encounter the non-linear active device without the benefit of filtering and thus AM blanketing or IMD are more likely to occur than in a receiver where the antenna signals are first filtered by the oscillator's tank. You’ll get J-pole performance from this base station vertical antenna built with coat hangers and PVC pipe. Don’t forget March 21, 2020 we have the MVARA Lou Malice WA8PKN 2 Meter contest coming up. I have tried the fractal antenna and bow tie antenna and considered the log periodic antenna. com in a single category. prcguy Member. The ARRL Letter, December 19, 2019. KRPI's antennas. The preamp isolates the outboard cavity from your duplexer, and presents a 50 Ohm load to each. John can be reached at W6NBC. I guess my specific question is if there is an alternative to the coax trap that could be used in a similar manner. The winning article for the December 2019 QST Cover Plaque award is “Slot Cube Antenna for 6 Meters” by John Portune, W6NBC. "Do not self-deploy," Szabo stressed. Finell, N7LRY, “A 2-Meter Quadrifilar Helix Antenna. Homebrew vertical multiband no radials keyword after analyzing the system lists the list of keywords related and the list of websites with related content, in addition you can see which keywords most interested customers on the this website. Requirements for the 2018 QST Antenna Design Competition included an antenna for one or more bands between 2200 meters and 10 meters that could fit within a 30 × 50 foot area and be …. was founded just a few miles from where Guglielmo Marconi launched the first radio signal in history. 9/24/2014 9 Comments set up a crystal set and strung a long wire antenna to the trees behind the house. The resource is currently listed in dxzone. The antenna is capable to give 2,9 db gain over a dipole when is located more than 15m high, and in this case the radiation angle is 13 degrees. On a typical two-way hilltop, cavity duplexers are as common as the forest of antennas that bristle from the towers. one antenna could be on 36 MHz and the other on 43 MHz), and set up in a way that prevented them from interfering with each other. There are lateral guys at 7m height, and the left hand one is non-conductive synthetic fibre rope. Requirements for the 2018 QST Antenna Design Competition included an antenna for one or more bands between 2200 meters and 10 meters that could fit within a 30 × 50 foot area and be …. Bob, Gordo, Don,and Val Open show ; Gordon has Kevin at the shack ; Amateur Radio Newsline™ With Don Wilbanks; John Portune(W6NBC) - M-Quad Antenna; Valerie's DX report contesting tools ; DX files; Amanda brings us the Chat Room; Extra Info. These trees are only 70 ft (21 m) apart, and too small to support. You’ll get J-pole performance from this base station vertical antenna built with coat hangers and PVC pipe. then we dont have to worry about the main antenna and it rotor problems. I live on a small lot in a dense, inner suburb of Boston and Cambridge. Small transmitting loop antennas, commonly called "magnetic loops" or "mag loops," can give surprisingly good performance when they are carefully designed and constructed. Getting on the air with POCSAG pagers. com - Weekly Contest; Ham nation videos. This link is listed in our web site directory since Wednesday Mar 1 2017, and till today "VHF UHF Coaxial Dipole Antenna" has been followed for a total of 2159 times. WB2HOL ’s 2M Tape Measure Beam (used mine to work the ISS!)--Mods to Joe’s Tape Measure Beam--Tape Measure Beam KITS! W6NBC’ s 2M/70CM Tape. Salvage 08/04. G3XDV 07/04. Both designed as smarter, stronger, and more elegant all band options covering every frequency from 160 to 6M. will be missed. Alex Diaz ’ Homebrew Yagis. It is located in Santa Maria, CA. This antenna consistently beat the 80m doublet into Europe on 40m, so it got a good bit of use. Compromise disguise antennas are no strangers to hams, especially on HF. also you need to license all the radios you intend to communicate with, not just your own unit, license is for the radio not the operator. It was known for its strong emphasis on technical articles and for the lengthy editorials in each issue by its founder and publisher, Wayne. Since I have an HOA, it is a good stealth antenna and would probably work very well as a permanent setup. On October 24 representatives of two of the Netherlands national amateur radio societies, VRZA and VERON, met with the communications regulator Agentschap Telecom (AT) The report of the meeting shows that the regulator AT had been monitoring the actual usage level of the 144 and 430 MHz amateur bands. The License Search here provides access to the most basic attributes of a license. quadrafIlar helix antenna and WXTOIMG software on an Pentium IV PC. High Performance 40 Meters Vertical. Alex Diaz ’ Homebrew Yagis. There's nothing too complicated about the antenna itself. Connect the VNA to the station end of the transmission line 5. Idea, lets have a "dont laugh at us" antenna club. This is because most man-made noise is verti-cally polarized. Portune, W6NBC here made from a threaded table lamp tube, the lower part of the whip becomes the cen -. This link is listed in our web site directory since Sunday Mar 27 2016, and till today "High Performance 40 Meters Vertical " has been followed for a total of 1846 times. Amateurfunk Jagd Januar Band Radios Tech Ideen. was founded just a few miles from where Guglielmo Marconi launched the first radio signal in history. 25 We also find that allegations of"R. Sep 18, 2015 - Can you spot the 2 meter antenna? Did you know you can cut a thin set of lines in a common "dish" antenna and use it with transceivers? Great DIY slot antenna for covenant restricted homeowners needing a stealth antenna. This effec-tively places a relatively large impedance in parallel with the antenna, insuring a good impedance match between the other (or remaining) channel and the antenna. How to Use Your Antenna Tuner by Scott – N4ZOU. Search this site.