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For sale. See http://www.mrtestequipment.com/search.php?txtSearch=S332B The Site Master is a hand held SWR/RL (standing wave ratio/return loss), and Distance…
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Standing Wave Resonance in 2-Dimensions somewhat similar to a “Chladni Plate”. The patterns are created by reflected laser light off of stretched vibrating m…
This is a pilot, and not yet ready. There will be a voice over added, and some fine tuning. The power used is purely illustrative and in a Dummy Load! (See S…
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6m用のHB9CVわベランダ設置する際のSWRの変化の実験です。
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standing waves.
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Origens dos nomes de bandas e artistas de rock
A Certain Ratio – Uma frase tirado da uma música de Brian Eno. A&M Records – As iniciais dos donos (Herb) Alpert e (Jerry) Moss. ….. Cassandra tem o dom da profecia e a maldição de ninguém acreditar nela. CBGB's – Templo Nova Yorquino para o new wave …
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Alex Putney who is behind the interesting website HumanResonance.org joins us on the program to discuss his work and theories on standing waves, geometrical …
Video Rating: 5 / 5
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The World’s Most Advanced CB Radio Ground Breaking technology, modern design and the quality, reliability and performance that made the Cobra 29 Series the #…
Video Rating: 3 / 5
PURPOSE: The LGX-M2 (where X = antenna length in feet) series, ‘No ground plane” (NGP) CB antenna kits were specifically designed to solve the problems associated with the lack of ground plane (counterpoise). This normally occurs on vehicles constructed of plastic, fiberglass, wood or aluminum. This includes, but is not limited to, motorhomes, boats, automobiles and 18-wheeler trucks. Ground plane problems typically show up in the form of high standing wave ratio (SWR) and poor performance. The
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WHAT IS SWR.
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This video was made for a junior electromagnetics course in electrical engineering at Bucknell University, USA. The video is designed to be used as the out-o…
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Mr. Daabous demonstrating the standing wave principle, or something, all i remember was it was cool.
Video Rating: 5 / 5
Two currents not one, running from end to end, will create a weakness in the middle by the differential current first. Wheras one way will not wear away the …
Video Rating: 5 / 5
Standing Wave.
its some physics demonstration on sound waves, think of it like a visual player on your media player or sumthin.
Video Rating: 3 / 5
http://forums.bsodtv.org/Show-Notes-f2.html.
Video Rating: 5 / 5
Cymatics, the study of wave phenomena; physical patterns produced through the interaction of sound waves in a medium. More info: http://www.seeper.com/
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SixtySec clip describing what is Vertical Polarization as related to a propogating wave from an antenna. For the full tutorial on polarization and other tuto…
4 element mobile vertical array swr and impedence after final tuning.
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Physical science PSC1121, fall 2010, undergraduate TAs. GEP Science foundation E.1.
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SWR testing Sirio Performer 5000 & Sirio ML 145 with low cost SWR – meter.
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Dallas Standing Wave Construction December 2010.
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Standing Wave Ratio explainedby Pulsecommunications17395 views; Standing Wave Pattern AnimationSWR 016. Watch Later Standing Wave Pattern AnimationSWRby meyavuz11963 views; Making standing waves 443. Watch Later Making standing wavesby froudedude214066 views; Standing Waves Part I Demonstration 438. Watch Later Standing Waves Part I Demonstrationby James Dann25325 views; Scary Massive waves on huge road bridge send Volgograd drivers asphalt surfing 047 …
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Most advanced designed outdoor Yagi antenna, easy installation.
Wide reflection exterior, triple size for reception.
No power needed, good for mid range UHF reception.
Specification:
SWR(Standing Wave Ratio) UHF/UHF Gain15-18dB Frequency470-860MHz Impedance75?
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The DB18E has been constructed and installed on the tower at 45 feet. The SWR on all bands is AOK. Now for a demonstration of on-the-air performance.
www.ece.utah.edu/~ece3300
Video Rating: 4 / 5
www.thunderpole.co.uk Here is the link and comes SWR for the usual channels and works really quite well in my opinion. Good Price and sound investment for the cost. Check my video with 26CT483 he was using this antenna when we made contact and was working well into Germany with it. 500w power handling and 1.89cm antenna. Does what it says on the tin. Works well and MADE IN THE UK, BIRMINGHAM by Paul and his team at Sigma Eurocomm and all there stuff works well.
Video Rating: 5 / 5
ADC2117 5Ft. 8mm RCA Audio Signal Cable
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In this video you can see how I using the SWR/Wattmeter LP-100A to create two SWR-diagrams automatically. One for the 20m band and one for the 15m band. As software I use LP-100 Plot. The wattmeter and the program are made by Larry Phipps, N8LP (Telepost Inc.). For CAT tuning the interface is Ham Radio Deluxe. Please select hd-quality in the settings and view in full screen mode. 73 de Torsten – DL9GTB — www.dl9gtb.de
This is my follow-up review of the MFJ-266 Antenna Analyzer. This is much more than just an antenna tester. If you have not watched part 1, please watch it first. Please subscribe to my YouTube channel (hamrad88). Visit my website.and use the Amazon link on the left on my main website page to support my shows. Enjoy.
How many birds does it take to change the SWR? This is just a bit of fun looking at the very small but consistent changes that a group of swallows make to the Voltage Standing Wave Ratio (SWR) on my home made 20 metre antenna. It’s not a scientific experiment but the results were, not surprisingly, reasonably consistent as it’s a well know fact that you can use capacitive loading to alter the characteristics of an antenna. I did toy with the idea of arranging bird food at the ends of the elements were their capacitive effect would be more noticeable but I didn’t want to encourage the crows as if they decide to land on the beam en masse as I think they would do more damage than just transiently shift the SWR! Thanks for watching, if you’re interested in radio you’ll find some hopefully interesting items amongst my other videos, there’s a No19 set, a Spy Radio, some vintage radios and the construction of the 20 metre beam featured in this video. Kind Regards …Andy gw0jxm
Video Rating: 5 / 5
Antenna Tuner MFJ 941 C Follow us at www.twitter.com See Appalachia where N4USA is located www.floydfolks.org http 1-540-808-2880 All about Voltage Standing Wave Ratio SWR – en.wikipedia.org All the Tuner theory you want to know – en.wikipedia.org MFJ Wikipedia en.wikipedia.org Subscribe to my Channel – www.youtube.com How to use an antenna tuner www.hamuniverse.com David started at age 8 building Using or teaching about electronic devices – that was 65 years ago. It started with a crystal radio then ham license at 14 yrs tinyurl.com , Navy electronics at 17ys , Field Engineer at 21yrs tinyurl.com , teaching ‘Electronics for Scientist’ at Virginia Tech at 29yrs , Director of ‘Foundation for Amateur International Radio Service’ (FAIRS) at 52 yrs and at 73 he is still busy with electronics. Collector of historical Microcomputers tinyurl.com & along the way David has small collection of tuners. This tuner minimizes the VSWR between the transmitter & the tuner- it does not reduce or change the VSWR in the feed line to the antenna, that is done by matching the feed line impedance at the antenna end of feed line. Many antennas have a matching network to couple the feed line to the antenna. A poor antenna & feed line is not improved with the tuner only power transfer is maximized – this works for receive and transmit – using impedance matching is always useful for maximum power transfer. Video produced by the LCF Group, LCF Group consist of David Larsen KK4WW, Gaynell Larsen …
This video shows my CB base station setup and basically all the CB equipment i have. Link To Ribbion Coax Adapter www.universal-radio.com
This is the testing of the dipole antenna that was created in www.youtube.com The antenna has a confirmed signal at 3.28 miles and an swr of maybe 1.1 on channel one, 1.2 on channel 20, and 1.4 on channel 40.
Video Rating: 5 / 5
Specifications:
Model Number: HGA7T
Connector: Reverse TNC
Peak Gain: 7dBi
FrequencyRange: 2.4GHz ~ 2.5GHz
Voltage Standing Wave Ratio (VSWR): 1.92 Max
Polarization: Linear Vertical
Direction: Omni-directional
Impedance: 50 Ohms Nominal
Dimensions (W x H x D): 11.22″ x 0.55″ (285 mm x 14 mm)
Unit Weight: 1.48 oz. (0.04 kg)
Compatible Linksys Products:
All WRT54G Routers except Version 8 (V8 – turn your router over to check the Version/V #)
WR
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Made this in a few hours, and it is FAR superior to any of the antennas used in the past. Put against GP, HLLY, and Commet 5/8 wave, and has lower swr’s across the whole band. The other one is for 2 meter. It is also homebrew. It works better than all the others I used. (It’s modified too)
Video Rating: 4 / 5
I decided to resurrect my vintage Avanti Sigma 5/8 Wave CB antenna which was stored in various places around the house. After cleaning the loading coil and connections I installed it temporarily on the fence for testing. SWRs are flat on channel 0 (26.955mhz one 10kc channel) below regular channel 1. SWR readings on channel 40 are 1.7 :1
Video Rating: 0 / 5
Site Analyzer from Bird Technologies is designed to test RF Power Measurements, VSWR and Distance to Fault (DTF) estimation for GSM, PCS, AMPS, TETRA, WLL, CDMA and other wireless technologies. For more information on Sale, Purchase or Rental of Site Analyzer visit www.trisektor.com Bird Site Analyzer combines ease-of-use with powerful measurement and data analysis to help perform predictive maintenance of the wireless networks. One of the most popular of the Bird Site Analyzer Series is SA6000EX, \one of the best cable and antenna tester out there.
www.cbradiomagazine.com – This is a video overview of the Astatic 600 SWR, wattage, and modulation meter. This meter is almost identical to the Workman P5000. The Astatic 600 retails for around .
Video Rating: 4 / 5
ADC2119 5 Feet 8.5mm (OD) RCA Subwoofer Cable with Nylon Sleeve
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Shift to S&T, mobility growth influence new QS ranking
A global shift towards science and technology and rapid growth in international student mobility are trends impacting on the standing of the world's finest universities, according to the 2012-13 QS rankings. Universities … MIT was also powered to the …
Read more on University World News
Vice-President of the European Commission and member of the Commission …
Across Europe, determined reforms to address long-standing weaknesses in labour, product and financial markets contribute to the successful consolidation of public finances, and help ensure lasting improvements in competitiveness in countries running …
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Gyeonghoeru(慶會樓) and I
For standing buffet, I know, they let the pavilion below rather than floor. In Gyeongbokgung(景福宮) they … There is golden section (ratio) frame by vertical column and horizontal bar, with beauty in every visible direction. This frame is called a …
Read more on Korea IT Times (press release)
This is the second video relating to the miniVNA antenna analyzer, I show you some details that I couldn’t fit into part one and I also show you my homemade grid dip meter here’s the link to part one (youtu.be where I show you my aerial setup for 80 and 20 metres and the start of the demo for the miniVNA Kind Regards … Andy gw0jxm
A video about the 2ft Thundepole Super-Flexi – a compact wound antenna that seems to work well for the size. Took some finite tuning to get the SWR down, but got there eventually. Being a short antenna, it’ll only cover about 40ch and the video shows the importance of checking the SWR even if the antenna is claimed to be pre-tuned. £10 plus delivery from Thunderpole and Thunderpole stockists – 3ft and 4ft versions also available.
Video Rating: 5 / 5
English Lessons at 85 Help Seniors Hold Down Japan Unemployment
Now 85, her readiness to use savings to fulfill a decades-delayed dream is part of a wave of spending by the elderly that's aiding the Japanese economy. “At my age, I thought it was OK to … Private consumption reached 60.6 percent of gross domestic …
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Illinois Beloved as Worst Pension Fails to Scourge: Muni Credit
At the same time, neighboring Wisconsin, with a 99.8 percent pension-funding ratio, has seen spreads on similar debt more than double over the same period. “Investors are believing the … That decline accompanied a wave of about $ 142 billion flowing …
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Fantasy Football 2012: Top 60 Players in Standard-Scoring Leagues
Skinny: Before I hand over a free pass to Matt Schaub for last year's incomplete stats from a truncated season (2,479 yards passing, 17 TDs in 10 starts), let's talk about the ridiculousness of his August standing on one average draft position chart …
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Part five of building a G5RV 10 to 80 meter shortwave antenna. You can do it. Testing for standing wave ratio (SWR) with an antenna analyzer. How does that analyzer work?
Video Rating: 5 / 5
Now that the DB18E is constructed and installed on the tower at 45 feet, I check the SWR on all bands.
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The next antenna some like it and some hate it. I have here also a Sirio Hi Power 4000 and think the new 5000 has a slight edge on the 4000. Made in Italy and can come with different coax if and when you want to drive it hard with more power then choose the other option. Bandwidth is on mine something like 180 channels with good swr and then another 20 or so with the limits of the bandwidth being pushed. It is a heavy antenna and can handle on the power side 1.5kw continuous and 5kw now and then but not solid. Antenna is built fine and is excellent working as the next video here will show.
Video Rating: 5 / 5
Paul M3XPR gives a brief introduction to VSWR and describes how to measure it and how an ATU could be usfull.
Video Rating: 3 / 5
Yup yet another repair of one of my swr meters.
Video Rating: 5 / 5
AN EASY CHECK TO SEE IF YOUR METER IS WORKING AND BALANCED
Video Rating: 5 / 5
Individuals Within Society: Human Vocation, Civil Commons and Social Justice
Higher efficiency in this system means more money for private money-sequencers than what they put in, the higher the ratio of self-take the more “efficient”. The civil commons infrastructure of society which is thus raided for money-sequence profit …
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S&P downgrade and debt crisis: as it happened January 13, 2012
Slovakia has been earmarked for a downgrade, while Belgium, with its high debt-to-GDP ratio and banking sector troubles, is also a likely candidate (although it was downgraded by S&P in late November). Anyone heard anything on Slovenia, …
Read more on Telegraph.co.uk
Features — 1.Increase wireless strength 2.Extend wireless distance 3.Support 802.11b and 802.11g 4.Suitable for RP-SMA plug.
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New Terk AM Advantage Adjustable Indoor Antenna. . Model Number: ADVANTAGE. . The Terk Advantage is a passive, fully adjustable indoor antenna for the AM broadcast band. It uses a pre-tuning system that adjusts antenna to specific frequency for best reception. It covers 540 to 1700 kHz. It tunes stations that other antennas do not and tunes out static. The Advantage may be placed right next to or on top of the AM radio. This inductive coupling makes it easy to use with most portables.. Incl
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This video shows how to measure the reflection coefficient of a specific load impedance. It also shows how the length of line connecting the load to the measurement point affects the value of gamma.
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Peppermint Twist: New take on holiday classic
New wave desserts that capture those signature holiday flavors, including a chocolate-peppermint buche de noel, care package-perfect candy-laced cookies and a dazzling ice cream that's only as pink as you want it to be. Chocolate and peppermint are one …
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Peppermint twist: New wave holiday desserts draw inspiration from traditional …
Christina Tosi, the baking genius behind New York's Momofuku Milk Bar, calls them “the last candy standing.” No one, she says, actually wants to eat them — and yet, we love them so. So with the assistance of Luchetti, Tosi and their colleagues, …
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BUSINESS IN BRIEF 25/12
The ratio of FDI disbursement had reached 49 per cent in the city this year, demonstrating the faith of many foreign investors in the city's investment climate, they said, noting that Asian countries such as Japan, South Korea and Thailand remained the …
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Hephaestus Books represents a new publishing paradigm, allowing disparate content sources to be curated into cohesive, relevant, and informative books. To date, this content has been curated from Wikipedia articles and images under Creative Commons licensing, although as Hephaestus Books continues to increase in scope and dimension, more licensed and public domain content is being added. We believe books such as this represent a new and exciting lexicon in the sharing of human knowledge. This
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Hephaestus Books represents a new publishing paradigm, allowing disparate content sources to be curated into cohesive, relevant, and informative books. To date, this content has been curated from Wikipedia articles and images under Creative Commons licensing, although as Hephaestus Books continues to increase in scope and dimension, more licensed and public domain content is being added. We believe books such as this represent a new and exciting lexicon in the sharing of human knowledge. This
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This video shows the use on a 1970’s era HP Spectrum Analyzer, capable of measurements to 110 MHz, to measure Return Loss of an antenna. The 141T Spectrum Analyzer system has the 8552B IF and 8553B RF Sections (plug-in’s), and is connected through a special cable assembly, HP p/n 08443-60009 (see www.glkinst.com to an HP 8443A Tracking Generator (early nixie tube version) The 8443A allows the operator to determine the frequency of any position along the trace via a marker and also provides the incident RF signal to the DUT (antenna in this case) through the 8721A Bridge. This was state of the art for that era and how network analysis was done using this 141T Spectrum Analyzer. These particular units were all built at HP in Santa Rosa, California. The 8721A Bridge is used to seperate the reflected signal from the incident signal and thus measurement of the reflected signal’s amplitude changes over a frequency sweep. See HP Application Note 150-3, available at the HP Memory Project Website, at www.hpmemory.org for more information. Note: the 8721A bridge labels appear on both sides but differently. The connection label LOAD is SOURCE on the opposite side, INCIDENT is actually REFLECTED oppositely, and SOURCE is LOAD on the opposite side. I had it setup to measure REFLECTED but that side is facing the table! Darn! Oh well!) The SA is set to 300 Mhz bandwidth, .5 MHz scan width per division, input attenuation at 20 dB, and a scan or sweep time per division of 5 milliseconds …
Video Rating: 5 / 5
BUSINESS IN BRIEF 10/12
Trung said the city had encouraged businesses to research and produce equipment for mechanisation of cattle breeding, as well as to build TMR (Total Mixed Ratio) plants, which offers the advantage of providing a balance of all the nutrients an animal …
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U.S. Patents Awarded to Inventors in North Carolina (Dec. 1)
A method of reducing an acoustic load of a standing wave in a standpipe connected to a first pipe configured to carry a flow includes disrupting the flow in the first pipe at a downstream side of an opening in the first pipe to which the standpipe is …
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This video shows my antenna set up for the 80 and 20 metre bands and the miniVNA (Vector Network Analyzer) antenna analyzer in operation. It’s not a detailed explanation of the miniVNA but hopefully it gives you an insight as to how it functions. My 80metre inverted V comprises of two 59 foot 6 inch lengths of wire fed with a air-cored balun and the 20 Metre inverted V comprises of two lengths of wire each approximately 17 foot long fed by an ugly balun. Hopefully you’ll forgive me for playing about with the Photoshop software. This is part one of two videos here’s the link to part two (youtu.be Kind Regards … Andy gw0jxm
This tutorial illustrates the concept of Voltage Standing Wave Ratio (VSWR) through a Microwave Office Simulation. It also shows the relationship between VSWR and reflection coefficient.
Video Rating: 0 / 5
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www.ece.utah.edu/~ece3300 How to find voltage standing wave ratio with the smith chart.
This is a short preview of Bill Hays’ very visual demonstration of Standing Waves, how they affect radio signals, and what we do about it. The entire seminar runs about 100 minutes, and is available on DVD from ARVN: www.ARVideoNews.com.
Video Rating: 4 / 5
In which Erin describes how to use a 50 ohm slotted line crystal detector and standing wave ratio meter to obtain the wavelength and voltage standing wave ration on a coaxial transmission line.
Describes test methods to measure impedance, reflection coefficient, and voltage standing wave ratio in the time and frequency domains. Applies to interconnect assemblies, such as electrical connectors and cable assemblies, within the scope of IEC technical committee 48.
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CP's railway to riches?
Becoming more efficient has been a long-standing goal for CP. The railroad's operating ratio, a key measure that expresses expenses relative to revenue, is about 75 per cent, relatively high by industry standards. By contrast, CN managed to transform …
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2013 Infiniti JX crosses over into the big leagues
Combining modern design with a touch of warmth, the new JX exterior is highlighted by the dramatic, double-arch front grille/headlight shape, double-wave hood, and crescent-cut D-pillar and greenhouse design. Automatic on/off High Intensity Discharge …
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UFC on Fox 1: Clay Guida vs. Ben Henderson Dissection
With the Frankie Edgar and Gray Maynard trilogy in the books and BJ Penn out of the picture, the stacked 155-pound class is ripe for a new wave of fresh contenders, the first of which will be determined this Saturday night. "The Carpenter" has long …
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Uniform plane wave traveling in the +z direction and normally incident on a medium interface at z=0. Only the electric field intensity is shown. The top figure shows the incident (blue), reflected (red), incident+reflected (brown) and transmitted field in both media. In the bottom figure, the standing wave patterns created in both media are shown. For medium with nonzero conductivity, check the following animation: youtu.be
Video Rating: 5 / 5