Talk:Radar speed gun

message: Automated radars, in terms of traffic control, combine use of speed-detection radar with digital cameras, as well as data links to vehicle registration databases, to generate speeding fines which are simply mailed to the vehicle owner.  
While the idea has not been implemented in the U.S.A. on a wide basis, they are common in France.
The following website provides a simple summary of the mechanism.
External link: http://www.controleradar.org/en/technologie.html
There is also an FAQ page (in French) at http://www.securite-routiere.gouv.fr/infos-ref/regles/csa/faq-csa.html
Would it be appropriate to add a section about this topic to this page, or should it be on its own page with a link here?
Typofixer76 00:18, 25 October 2006 (UTC)
replies: text: Just my passing two cents. Wikipedia seems to value action over debate (i.e. no need to ask first to do something). I would make it its own page if the name/term seems Notable WP:NN 69.72.7.141 20:45, 1 November 2006 (UTC)
thread_title:  Add section (or link) to automated radars? 

message: Mobile and hand-held radar have significant limitations, so I added that section to the article to correct an omission. I also expanded the radar detector area and added some credible references. I hope this finds everyone well.Nanoatzin (talk) 19:19, 15 February 2012 (UTC)
thread_title: Limitations

message: "It is suggested that interference in the RADAR band by cellular phones, transmitters of other kinds, power wires, high tension wires, signs and even stationary walls can create erroneous readings."
"it is suggested" is weaselly; this claim should be reworded (with documentation, ideally) or removed.  —Preceding unsigned comment added by Tom239 (talk • contribs) 17:23, 9 September 2008 (UTC)
replies: text: Agreed.  This sounds like nonsense from someone who doesn't understand electronics trying to get out of a ticket.  —Preceding unsigned comment added by 71.167.67.33 (talk) 16:46, 2 January 2009 (UTC)
thread_title:  Weasel words 

message: The 15:24, 9 June 2010 Loadmaster version of this article is translated into Chinese Wikipedia--Wing (talk) 13:09, 3 July 2010 (UTC)
thread_title:  Translation into Chinese Wikipedia 

message: I've just copy edited this article for the GOCE. Very interesting, but I was wondering whether any editor might like to include a section on the use of radar guns in sport, since it's briefly mentioned in the lead paragraph with reference to baseball but then never followed up. I only mention this as Wimbledon (tennis tournament) is going on at the moment, as well as England v Australia cricket in the UK, and ball speeds are routinely given in all these games when they are televised. Richard asr (talk) 19:50, 2 July 2012 (UTC)
thread_title:  Use of radar guns in sport 

message: A limitation not discussed so far is the sensitivity of a simple radar gun receiver to amplitude modulated signals. See Direct-conversion receiver for a discussion the technical details; the point being that an amplitude modulated input at the original frequency will produce a tone at the mixer output that the receiver can not distinguish from a Doppler shifted signal. The easiest demonstration of this for the skeptical is to recall that a tuning fork is commonly used to check a radar gun calibration; no part of the tuning fork is moving at 60 mph or whatever the calibration speed is; the tuning fork is simply reflecting back into the receiver a fluctuating copy of the emitted signal, that is, it is reflecting back an amplitude modulated signal. It is well known by users of these devices that other objects than can produce time-varying reflections, such as a moving cooling fan in a running motor, can produce similar errors. --AJim (talk) 20:13, 16 October 2012 (UTC)
thread_title:  amplitude modulation 

message: Reference 5 (Radar detectors FAQ. Whistler Group. Retrieved 2010-09-17) goes to the main page of a commercial website (i.e., it is the wrong page). Although it has a Help/FAQ on a different page on that website, that page contains, mostly, information for its own products. Although the FAQ does contain generic info about radar guns, such could be found on the web without having to go to a commercial site. It should be changed to a more appropriate FAQ or relevant descriptive web page, or removed. I do not feel comfortable doing either, and, as such, leave it to somebody else (n.b., a similar issue was brought up at the top of this "talk" page). Skaizun (talk) 21:29, 24 March 2023 (UTC)
thread_title:  Commercial site 

message: There is no mention of potential dangers of speed guns to the wielder. For example, in decades past, police, who used radar guns, regularly, allegedly came down with cancers of the fingers, hand, crotch (when held at waist level), face (when held at eye level), etc. Curiously, I can find no references to such on the web. Skaizun (talk) 21:35, 24 March 2023 (UTC)
thread_title:  Safety issues