[SGVHAK] What is this?

Braddock braddock at braddock.com
Mon Mar 25 15:24:11 PDT 2013


Gunshot detector.  I like it.  That would explain why there were (at 
least) two - and maybe they need wind speed to help the calculation?

Just the type of superfluous thing the South Pasadena City Council would 
waste my money on.  I'll write them and see if they can confirm.

-braddock


On 03/25/2013 11:49 AM, Richard Scobey wrote:
> I remember hearing that sensors were being installed throughout the 
> Los Angeles area to detect gunshots. Using triangulation, they are 
> able to pinpoint the source.
> Does anyone know what those look like?
>
> Rick Scobey
>
> Sent from my iPad
>
> On Mar 25, 2013, at 11:11 AM, Dan Buthusiem <dan.buthusiem at gmail.com 
> <mailto:dan.buthusiem at gmail.com>> wrote:
>
>> I've noticed quite a few popping up recently. One in South Pasadena 
>> seemed to be the best WiMax spots back when it was still in 
>> deployment. I doubt they're all weather stations, seeing as I don't 
>> see the use of having such a dense sensor distribution for tracking 
>> weather. I can only guess it'd be for seismic activity (they are 
>> working on adding sensors to the seismic detector network), or the 
>> possibility they're antennas for some sort of urban wireless network. 
>> Whatever they are, they're definitely growing in number. Good to know 
>> I'm not the only one to notice them.
>>
>> On Mar 25, 2013 9:47 AM, "James McDuffie" <mcduffie at pitfall.org 
>> <mailto:mcduffie at pitfall.org>> wrote:
>>
>>     I was curious too. I looked both at the Weather Underground and
>>     NOAA station locator websites and could not find anything listed
>>     at those cross streets.
>>     http://www.wunderground.com/weatherstation/about.asp
>>     http://www.ncdc.noaa.gov/cdo-web/
>>     Some questions that might lead to more answers:
>>     * Is pole on private or public property?
>>     * Do you see a control box on the ground? I am guessing the
>>     control and communication equipment is mounted above the
>>     radiation shield.
>>     * Is there a wire going from the station into the pole?
>>     Maybe its a station for a local school.
>>     On Mon, Mar 25, 2013, at 08:20 AM, Braddock wrote:
>>>     Do cities regularly install weather stations? What for?  And two
>>>     on one block?
>>>     I'm very curious.
>>>     -braddock
>>>     On 03/24/2013 03:44 PM, Claude Felizardo wrote:
>>>>     Yuppers.  Definitely looks like a wind speed sensor, possibly a
>>>>     rain gauge on top and a ventilated temp and/or humidity sensor.
>>>>      Surprised that there isn't a wind direction sensor.
>>>>     They could be monitoring for other stuff.  Air pollution but
>>>>     then they usually need easy access to a particulate filter
>>>>     fairly often.
>>>>     On Mar 24, 2013, at 2:32 PM, James McDuffie
>>>>     <mcduffie at pitfall.org <mailto:mcduffie at pitfall.org>> wrote:
>>>>>     Looks very much like a weather station.
>>>>>     braddock at braddock.com <mailto:braddock at braddock.com> wrote:
>>>>>
>>>>>         There are two of these things mounted on poles one block
>>>>>         apart on Mission and Fair Oaks in South Pasadena.
>>>>>         What are they? Is the city running some kind of weather
>>>>>         station?
>>>>>

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