Friday, October 3, 2014

The Effect of Consumer Electronics on Avalanche Beacons


Mammut's Ilari Dammert Presents Poster at ISSW 2014




In the past few years, there has been a growing concern in the avalanche rescue community that consumer electronics interfere with avalanche transceivers ability to function properly. We have always known that metal objects like shovel blades or even foil wrappers can create electrical interference, but today just about every backcountry traveller is equipt with GO PROs, iPhones, VHF radios and other high frequency gadgets.

In an effort to further our understanding of this important topic, Ilari Dammert (Mammut Electronics Product Manager) and Erwin Meister (Project Manager CCS Adaxys) teamed up to explore the issue.


I have published the full paper below. For those less likely to read the entire paper, some excerpts are included here. The short and simple is that electrical interference is a real potential problem in rescue scenarios. Extraneous electronic equipment must be turned off during a beacon search to facilitate a "clean" working environment. When traveling in avalanche terrain be sure to place high frequency electronics as far from your beacon as possible--while 3 centimeters proved adequate in laboratory testing, we recommend a minimum of 20 cm in order to have a reasonable margin of safety regardless of the position of burial). In SEARCH MODE your beacon is far more prone to interference and a 50cm buffer is recommended.

Please note: "Airplane Mode" on a smartphone does NOT reduce the electromagnetic field sufficiently. Phones need to be OFF or at a distance greater than the respective recomended distances.

EXCERPTS:

SEND MODE:
When the aluminum plate was directly placed on the case of the transceiver (distance = 0), a significant reduction in amplitude of the transmit- ted signal was measured. At distances greater than 30mm, no range reductions were observed.

SEARCH MODE:
"Based on the results and great variety of potentially interfering objects, it is not possible to give one final recommendation in terms of minimum distance for “SEARCH” mode.
As a general recommendation for a search, hold the device at least a minimum of 50cm away from interfering objects and turn off any electronic devices, if possible. It is highly recommended in this case to turn off mobile phones!


For the Full Paper Click "Read More"












89 comments:

  1. Great survey, I'm sure you're getting a great response. https://blackfridaysalez.com

    ReplyDelete
  2. Everywhere you see, you are surrounded by the wonders of electronics, from the very start of your day till the end you somehow end up using an electronic product. food containers

    ReplyDelete
  3. Presently days in market there are numerous items which make you brilliant home client. Like Smart TV, Home Air Purifier, Home Robotic Vacuum cleaner, Water Purifier (RO), Smart Speaker thus numerous items. These all Appliances are sought after each individual like and utilizing.appliance repair Oceanside

    ReplyDelete
  4. Everywhere you see, you are surrounded by the wonders of electronics, from the very start of your day till the end you somehow end up using an electronic product.
    koktale

    ReplyDelete
  5. Everywhere you see, you are surrounded by the wonders of electronics, from the very start of your day till the end you somehow end up using an electronic product.

    ReplyDelete
  6. Everywhere you see, you are surrounded by the wonders of electronics, from the very start of your day till the end you somehow end up using an electronic product.
    koktale

    ReplyDelete
  7. This particular is usually apparently essential and moreover outstanding truth along with for sure fair-minded and moreover admittedly useful My business is looking to find in advance designed for this specific useful stuffs… such as wire stripping machine

    ReplyDelete
  8. The capacity to store overabundance power in batteries implies you don't should be connected to the network in any event, for overcast days.Zonnepanelen

    ReplyDelete
  9. By using the TVSS components, you are eliminating this excessive current (due to noise, glitches, etc.) from the "power line" current, flowing into your electronic system.https://generatorguides.net/

    ReplyDelete
  10. I invite you to the page where see how much we have in common. iPhones outright

    ReplyDelete
  11. Wow i can say that this is another great article as expected of this blog.Bookmarked this site.. Ankle Support Basketball Shoes

    ReplyDelete
  12. Wow, excellent post. I'd like to draft like this too - taking time and real hard work to make a great article. This post has encouraged me to write some posts that I am going to write soon. two way radios

    ReplyDelete
  13. An electronic technician may tackle numerous jobs, such as the service and repair of both household and business electronic equipment. This may include radios, televisions and computers.DCS Stove Maintenance Tips

    ReplyDelete
  14. i love reading this article so beautiful!!great job! cheap walkie talkies

    ReplyDelete
  15. Purpose of the study is to diagnose the state of efficiency in itself and trace out the factors responsible for lower or higher efficiency in discharging various operation and activities of analysis in Electronic Money security.Dubai Vape

    ReplyDelete
  16. Looking for terminal crimping machine? Then we are the best for you, who suit your expectations. We have huge experience on this field. We are 100% dedicated to find you terminal crimping machine.
    We are dedicated to manufacturing and sales of a wide range of pneumatic crimping machines including pneumatic crimping tool for crimp clamps.
    You can find here your best one.
    If you want to know more, Please check out here: Bterminal crimping machine

    ReplyDelete
  17. Disklabs have been made aware of this issue and can now tell you that a disklabs faraday bag PS1 Key Shield will prevent radio interference from phones and other electrical devices interfering with transceivers

    check it out at https://www.fonefunshop.com/Phone-Shield-Faraday-Bag-PS1.html

    ReplyDelete
  18. Bureaucratic and state governments offer solar motivating forces, which help to balance the underlying costs of a solar vitality framework. Zonnepanelen kopen

    ReplyDelete
  19. The interface is really attractive & interesting. IDM Crack

    ReplyDelete
  20. Hi!
    This is very well written and it's so intresting.
    This is so awesome.
    But you should also see this...
    This site provides free serial/activation codes and license keys.
    filmora crack
    winrar crack
    idm crack

    ReplyDelete
  21. These small appliances are mainly used for purposes like cleaning, washing, cooking and many more. The other category of major appliances includes products like stove, microwave oven, washing machine, air cooler, refrigerator and more.Installateurs zonnepanelen

    ReplyDelete
  22. This is certainly what's more a good report that i definitely enjoyed reading reviewing. It is actually no regularly that i contain the risk to discover a specific thing. idm

    ReplyDelete
  23. Electric shavers come with either foil or rotary cutting razor blades. The kinds of shavers don't really matter, it just depends of the user's comfortability and use. However, most of women's shavers use foil cutters.beard trimmer vs shaver

    ReplyDelete
  24. If your company has an annual advertising budget of $50,000 or more, the question is no longer "can we afford an electronic message center", it has become "can we afford NOT to invest in an EMC?".walkie talkie

    ReplyDelete
  25. You can check with your local recycling center to find out what is offered. If they do not offer a pickup service, they may have a location where you can take electronics to be recycled. In some cities, they may have a set day that they collect electronics for recycling.portable projector

    ReplyDelete
  26. Thanks for posting this info. I just want to let you know that I just check out your site and I find it very interesting and informative. I can't wait to read lots of your posts. ithor

    ReplyDelete
  27. You know your projects stand out of the herd. There is something special about them. It seems to me all of them are really brilliant! Dotent

    ReplyDelete
  28. It's estimated the average fridge-freezer uses 427 kWh each year at a cost of £62 per year, a cooker with an electric hob uses 317 kWh per year at a cost of £46, whilst an oven without a hob uses 290 kWh per year at a cost of £42. It's also estimated the vacuum cleaner costs as little as £2.60 per year to run, due to using only 18 kWh per year.Cordless Water Flosser

    ReplyDelete
  29. To create a valuable DC voltage, the solar cells are associated in arrangement and afterward typified in modules making the solar board. Installateur zonnepanelen

    ReplyDelete
  30. Usually, a specialty is attached to the title of electronics engineer. An example of this is seen in the aviation electronics engineer that works for the military. obsolete electronic components uk

    ReplyDelete
  31. Having read this I thought it was rather informative. I appreciate you finding the time and energy to put this content together. I once again find myself spending a lot of time both reading and posting comments. But so what, it was still worth it! House Cleaning Services in Dubai

    ReplyDelete
  32. Thanks for sharing this significant and valuable information with. Visit OGEN Infosystem, here you will get the responsive web design and SEO Services at affordable price.
    Web Design Company in Delhi

    ReplyDelete
  33. Hey! I would like to appreciate for this valuable and informative blog.

    Kanika Kapoor Songs Lyrics

    ReplyDelete
  34. Hello there! I just want to offer you a big thumbs up for your great info you have right here on this post. I'll be coming back to your web site for more soon.
    BEST MEMORY FOAM MATTRESS TOPPER FOR SIDE SLEEPERS

    ReplyDelete
  35. I’m impressed, I must say. Seldom do I come across a blog that’s both educative and interesting, and without a doubt, you have hit the nail on the head. The problem is an issue that not enough folks are speaking intelligently about. Now i'm very happy I stumbled across this during my hunt for something regarding this.green feathers

    ReplyDelete
  36. For the most part, monocrystalline cells are more productive than polycrystalline cells yet this doesn't imply that monocrystalline cells perform and yields more force than polycrystalline cells.Zonnepanelen

    ReplyDelete
  37. webuildmn Our design oriented and educated staff will work
    from your drawings or can provide complete design
    service to meet your individual needs. Our
    experience in design allows us to work seamlessly
    with other architects and designers.

    ReplyDelete
  38. This excellent website truly has all of the info I wanted concerning this subject and didn’t know who to ask.
    corset and bustiers

    ReplyDelete
  39. There are also many of these types of kettles that are inexpensive, decorative, and work just as well. electric tea pot

    ReplyDelete
  40. This excellent website actually has all the information I wanted concerning this topic and did not know who to ask.Vape dubai

    ReplyDelete
  41. Thanks for sharing informations.
    CCNA Course in Coimbatore

    CCNA Training Institute in Coimbatore

    Java training in coimbatore

    Selenium Training in Coimbatore

    Software Testing Course in Coimbatore

    python training institute in coimbatore

    python course in coimbatore

    ReplyDelete
  42. injection moldEverything is very open with a clear description of the issues. It was really informative. Your website is very helpful. Many thanks for sharing!

    ReplyDelete
  43. Great site! I genuinely cherish how it is simple on my eyes it is. I am thinking about how I may be advised at whatever point another post has been made. I have subscribed to your RSS which might do the trap? Have an incredible day!
    Awesome substance material and extraordinary design. Your site merits the greater part of the positive input it's been getting. fortnite best settings

    ReplyDelete
  44. It’s hard to come by experienced people about this Safe Tech Buzz subject, but you seem like you know what you’re talking about! Thanks

    ReplyDelete
  45. Best probiotics for women reduced the risk of travelers' diarrhea by 8%. They also lowered the risk of diarrhea from other causes by 57% in children and 26% in adults (12Trusted Source).

    Effectiveness varies, depending on the type and dose of the probiotic taken.

    ReplyDelete
  46. Finding the right revendedor de hosting name is obviously a very important step in launching your new website. While not directly tied to hosting, there is an obvious connection people make between your website and your domain name. We have a lot of experience with these sorts of issues, so we will try to explain what goes into a great domain name.

    ReplyDelete
  47. Residential real estate includes both new construction and resale homes. The most common category is single-family homes. There are also condominiums, co-ops, townhouses, duplexes, triple-deckers, quadplexes, high-value homes, multi-generational and vacation homes.

    ReplyDelete
  48. Hotstra 2020 Crack to you free To Get PC personally. The chances are infinite. The development of the leisure business is programming demand. Every viewer gets their particular taste, and streaming permits high viewership. Hotstar enjoyed leading stream care after flowing championships games in 2015 and obtained momentum.New Crack

    ReplyDelete
  49. BlueStacks Premium Crack can be an easy but useful tool for running and launching a distinct Android app around your computer. Entirely for conducting Android programs onto user Micro-Soft window operating-system apparatus with no 19, it employs a Google accounts.New Crack

    ReplyDelete
  50. BlueStacks Premium Crack can be an easy but useful tool for running and launching a distinct Android app around your computer. Entirely for conducting Android programs onto user Micro-Soft window operating-system apparatus with no 19, it employs a Google accounts.New Crack

    ReplyDelete
  51. So pleased with my Cushion cover. It was a gift for my Mum with two pictures of my children on. She loves it so much she’s getting a second one made with photos of her other grandchildren.

    ReplyDelete
  52. Boris Box Set Crack Is the most recent & most whole deal of Boris FX's visual effects applications. As it gives the most effective visual effects (VFX) plugins within one offer deal, it's intended to focus on a broad scope of servers. Visual impacts capacities higher level using video results along with editing programs for visual impacts, developers,New Crack

    ReplyDelete
  53. If you have an electric power washer, keep in mind it can be a shocking experience if water comes in contact with electricity. Use a heavy-duty extension cord. They look like long orange snakes. Also, be extremely careful washing around the electrical service line. That's the line connecting your house to the telephone pole. Wash gingerly around cable and telephone lines, too, not to mention the electric or gas meter. If there are any pressure washing college park, tape them shut with electrical tape.

    ReplyDelete
  54. IDM Crack Full Version Free Download direct link is made available. Internet Download Manager It is compatible with both 32-bit and 64-bit systems

    ReplyDelete
  55. We know there are some very adamant DIY'ers out there who live for the challenge and want to save money on home projects. We ask you to reconsider this project and hire a professional. You'll get it done faster, like-new restorations, and you won't risk property damage.atlanta commercial pressure washing

    ReplyDelete
  56. Your style is very unique compared to other folks I have read stuff from. Thank you for posting when you've got the opportunity, Guess I will just book mark this web site.car shipping georgia

    ReplyDelete
  57. Charles Proxy Crack License Key with Keygen Full Charles Proxy permit vital can be a program application made by most people at XK72, among the absolute most renowned programmers of net surfing programs and software. This computer software is also an HTTP proxy application that's the useful handle and also to determine the visitors who exist between the world wide web and a personal laptop.New Crack

    ReplyDelete
  58. Pest control
    The department aims at communicating with local and Foreign Pest Control Agencies, Plant Protection Department (Karachi) and Forest Entomologist at Pakistan Forest Institute (Peshawar) with regards to pest control management.

    ReplyDelete
  59. Really great things put in this blog, thanks for sharing with us. Visit Kalakutir Pvt Ltd for best Epoxy Paint Flooring & Coating and Food Truck Branding services.
    Epoxy Paint Flooring & Coating

    ReplyDelete
  60. The element you will enjoy and loathe most, at the same time, often is the simplicity of the look. After the program launches and fast scans above your PC, you might be confronted with essentially only 2 buttons. One to scan and correct the mistakes, one other to undo the alterations (restore backup). Which is it. Compare it along with the tens of specialized tools that jv16 PowerTools (the industrial edition) has and i'm totally sure that you will realize why the latter seriously isn't a freeware. Visit for best Crack Software https://freeprosoftz.com/
    Following the scan is completed despite the fact that, important things do get yourself a bit way more problematic. The mistakes uncovered are nicely arranged in categories and you've got the option to fix each of them separately, by classification or to be a complete. But that's only the start. If you happen

    ReplyDelete
  61. societal security is a concept developed by the Copenhagen School of security studies that refers to " the ability of a society to persist in its essential character under changing conditions and possible or actual threats ".

    ReplyDelete
  62. nice post, keep up with this interesting work. It really is good to know that this topic is being covered also on this web site so cheers for taking time to discuss this! how to buy likes on instagram yahoo

    ReplyDelete
  63. After looking into a number of the blog articles on your web site, I honestly like your technique of blogging. I saved it to my bookmark site list and will be checking back soon. Please visit my web site as well and let me know how you feel.
    societal

    ReplyDelete
  64. Vegas vr
    There’s a new game in town: Virtual reality (VR) arcades are popping up to let people experience the computer-generated worlds without having to buy a headset.

    ReplyDelete
  65. Nice blog. Visit Protrek Adventure for best Three Passes Trek and Top Everest Base Camp with Gokyo Ri with full guidance and safety.
    Three Passes Trek

    ReplyDelete
  66. Thank you because you have been willing to share information with us. we will always appreciate all you have done here because I know you are very concerned with our. for more detail
    https://www.arzhost.com/what-is-incoming-mail-server-hostname/

    ReplyDelete
  67. The portable business is on an unequaled blast, which has prompted simple access to cell phones for everybody. 토토사이트

    ReplyDelete
  68. Nice blog..! I really loved reading through this article. Thanks for sharing such a what is incoming mail server hostname amazing post with us and keep blogging.

    ReplyDelete
  69. I was very pleased to find this site. I wanted to thank you for this great read!! I definitely enjoying every little bit of it and I have you bookmarked to check out new stuff you post.

    Data Science Course

    ReplyDelete
  70. Two full thumbs up for this magnificant article of yours. I've really enjoyed reading this article today and I think this might be one of the best article that I've read yet. Please, keep this work going on in the same quality.

    Data Science Training

    ReplyDelete
  71. I'd like to take the power of thanking you for that specialized guidance I've constantly enjoyed viewing your blog.
    personal safety alarm

    ReplyDelete