Talk:RuBee
This article refers to non-existing figures.
Figures are missing o the article is a copy/paste of another source??
Inaccuracies
I don't know specific details RuBee implementation, but the discussion about "How RuBee Works" section is filled with electromagnetics that is either sloppy or incorrect. I propose a couple of corrections here to make this more accurate:
- LF transmission occurs antennas that emit electromagnetic energy, which is a combination of both magnetic (H) and electric (E) fields. The wavelength of a 125 KHz RF signal is 2.4 Km, which much longer than the 3m to 30m operational range of these devices; the data is therefore being transmitted in the near field, where magnetic (rather than electromagnetic) coupling dominates.
- Magnetic fields be distorted by ferromagnetic rocks
--Lurgyman63 18:13, 5 May 2007 (UTC)
Thanks for comments
The reason magnetic field dominates has more to do with length of the antenna - you are correct that it is near field but E can be very strong in near field with any HF or UHF systems - if you have an antenna that is 1/10 or less E goes down and H starts to win ...
Someone futz with this article - I have only IP address -
I will continue to update this page - I am Chair of 1902.1 IEEE workgroup. and chairman of Visible Assets - All of what is in this article is verifiable - thanks John Stevens
I have added brief discussion of near field - and explained tuning issues thanks for interest
Jkmstevens 11:59, 13 May 2007 (UTC)
I don't know yet where to report, but the physical part of the article is, excuse me, a pile of crap. I'd like some professional physicists to take a look and either remove this article totally, or, if it does have a meaningful content, fix the "explanation" part, eliminating all the cute nonsense.
Vlad Patryshev 03:50, 14 August 2007 (UTC)
Vlad - I am the Chair of 1902.1 - I am also a physicists (PhD, Penn 1974) be specfic with regard your criticisms - The cute "nonsense" has helped a lot people who are non-physicist understand complex issues. Think can deal with specifics - like the resonant frequency of ??? is really ??? .
I referenced solid items and documented each - I have received many complaints re your edits from IEEE members and many others - unless your specific about issues -- all changes you have been made will be reversed.
Thanks John Stevens —Preceding unsigned comment added by Jkmstevens (talk • contribs) 13:39, 1 September 2007 (UTC)
New Changes and Expert
After discussions with admins at Wiki I have reverted the article back to older version
1. I have tightened Tone in How RuBee works sections - only serious issue..
2. As per Wiki rules this article contains no Original Research and is verifiable - you want to challange that you must be specific - and do it here in talk for changes to stay ..... I will respond within 72 hours.
3. I am a Ph.D. in Biophysics and an expert in this area - I have taught many graduate physics courses at several well known Universities - this article has been reviewed by two other physics experts. Its language is intentionally simple - it is not ment to be overly technical - However it is accurate and verifiable.
If you are an administrator please identify yourself here in "talk" before you make any additional changes....
If you are just person do the same please - "this is pile of crap" does not qualify as a comment.
IEEE 1902.1 was passed by work group unanimously in July with over 17 independent companies participating in the work group. It is technically still pending (P1902.1) but will issue by the end of the year. It is in use at DOE, especially in high security areas, the DoD, many hospitals and a number of new Rubee enabled products are scheduled for launch in 2008.. this site is used by many as an introduction to 1902.1 and RuBee world wide .... We all want to to be accurate and easy to understand.. and up to date .. please help with that.
Thanks Very Much
John Stevens Chair IEEE 1902.1