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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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#81
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Radio Antenna on street lights
On 14/12/2013 11:38, DerbyBorn wrote:
tony sayer wrote in : http://www.telensa.com/systems-produ...s-and-modules/ Round our way we have got lights with a magic eye on the top that can see when it is getting dark and it switches the lamp on - then in the morning it sees that the sky is getting light and turns it off. I don't think the idea has much of a future though - it is too simple. They used to waste a lot of power, they were a LDR and a bi-metallic strip with a heater. |
#82
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Radio Antenna on street lights
On Saturday 14 December 2013 16:56 dennis@home wrote in uk.d-i-y:
On 14/12/2013 08:25, Tim Watts wrote: On Friday 13 December 2013 23:10 dennis@home wrote in uk.d-i-y: On 13/12/2013 16:42, Tim Watts wrote: One of the reasons I do not want a smartmeter for electricity... Smart meters don't use the internet, they use SMS. Who said anything about "the Internet". They can also use Zigbee and other short haul radio technologies. They can use wet string but they don't. http://openenergymonitor.org/emon/node/2820 -- Tim Watts Personal Blog: http://squiddy.blog.dionic.net/ http://www.sensorly.com/ Crowd mapping of 2G/3G/4G mobile signal coverage |
#83
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Radio Antenna on street lights
On Sat, 14 Dec 2013 11:36:28 +0000, mogga
wrote: On Fri, 13 Dec 2013 17:50:38 +0000, Dave W wrote: On Thu, 12 Dec 2013 19:12:58 +0000, mogga wrote: We're getting some new street lights and have noticed they have little antennas on the top. What is it for? They look like they have a light detetctor same as the old ones too. They've recently replaced all the lights here in Epsom similarly. The're radio controlled, and report back provided they haven't failed. They're also dimmed at night to save money. I think there are a few master lights which do the two-way communication, and they each control several slave lights. Someone asked the workmen and they reckon these lights aren't dimmable. I found a document from Surrey County Council specifying the lighting system to be the Harvard 'LeafNut' range. Interesting info he http://www.harvardeng.com/productsleafnut.do -- Dave W --- news://freenews.netfront.net/ - complaints: --- |
#84
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Radio Antenna on street lights
On 14/12/2013 18:39, Tim Watts wrote:
On Saturday 14 December 2013 16:56 dennis@home wrote in uk.d-i-y: On 14/12/2013 08:25, Tim Watts wrote: On Friday 13 December 2013 23:10 dennis@home wrote in uk.d-i-y: On 13/12/2013 16:42, Tim Watts wrote: One of the reasons I do not want a smartmeter for electricity... Smart meters don't use the internet, they use SMS. Who said anything about "the Internet". They can also use Zigbee and other short haul radio technologies. They can use wet string but they don't. http://openenergymonitor.org/emon/node/2820 That's what the meter uses to send data to the display, it doesn't mean you can send stuff to the meter. |
#85
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Radio Antenna on street lights
On Sat, 14 Dec 2013 12:27:30 -0000, Uncle Peter wrote:
I think streetlights are a waste of money. My car has headlights. Nearest street lights to here are a mile and a half away. On a clear moonless night the stars and milky way are stunning and provide enough light to move about safely. Moon light is more than enough. There is a bit of light pollution from Carlisle 30 miles away if you know where to look but Teeside is the worst at over 40 miles, I pity those that can only see a few of the brightest stars due to light pollution. Different matter on a thick cloudy night, it is dark, absolutely dark, disturbingly dark, that's why I have a torch. B-) -- Cheers Dave. |
#86
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Radio Antenna on street lights
On Sat, 14 Dec 2013 14:36:52 +0100, tim...... wrote:
Round our way we have got lights with a magic eye on the top that can see when it is getting dark and it switches the lamp on - then in the morning it sees that the sky is getting light and turns it off. except that it fails "on" on very cloudy days If it's cloudly aka dark enough for the light to come on, the light proably does need to be on. That's certainly the case from my observations. Must admit I'm having trouble with this switching off when it's darl lark. *If* there is a need for street lighting there is a need full stop. Why should some onegoing to work at 0300 do so without the "benefit" of street lighting when some one else going to work at 0700 does? -- Cheers Dave. |
#87
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Radio Antenna on street lights
On Sat, 14 Dec 2013 11:42:30 +0000, mogga wrote:
measure energy usage for billing purposes and confirm energy savings Ah the real reason: Accountants. -- Cheers Dave. |
#88
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Radio Antenna on street lights
On Saturday 14 December 2013 23:08 dennis@home wrote in uk.d-i-y:
On 14/12/2013 18:39, Tim Watts wrote: On Saturday 14 December 2013 16:56 dennis@home wrote in uk.d-i-y: On 14/12/2013 08:25, Tim Watts wrote: On Friday 13 December 2013 23:10 dennis@home wrote in uk.d-i-y: On 13/12/2013 16:42, Tim Watts wrote: One of the reasons I do not want a smartmeter for electricity... Smart meters don't use the internet, they use SMS. Who said anything about "the Internet". They can also use Zigbee and other short haul radio technologies. They can use wet string but they don't. http://openenergymonitor.org/emon/node/2820 That's what the meter uses to send data to the display, it doesn't mean you can send stuff to the meter. Justification? -- Tim Watts Personal Blog: http://squiddy.blog.dionic.net/ http://www.sensorly.com/ Crowd mapping of 2G/3G/4G mobile signal coverage |
#89
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Radio Antenna on street lights
On Sunday 15 December 2013 00:18 Dave Liquorice wrote in uk.d-i-y:
On Sat, 14 Dec 2013 12:27:30 -0000, Uncle Peter wrote: I think streetlights are a waste of money. My car has headlights. Nearest street lights to here are a mile and a half away. On a clear moonless night the stars and milky way are stunning and provide enough light to move about safely. Moon light is more than enough. There is a bit of light pollution from Carlisle 30 miles away if you know where to look but Teeside is the worst at over 40 miles, I pity those that can only see a few of the brightest stars due to light pollution. I remember a camping trip to Cape Wrath 20 years ago. It was so unpoluted, as you say, the arms of the Milky Way were distinct and it was like seeing into infinity with clarity. -- Tim Watts Personal Blog: http://squiddy.blog.dionic.net/ http://www.sensorly.com/ Crowd mapping of 2G/3G/4G mobile signal coverage |
#90
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Radio Antenna on street lights
Tim Watts wrote:
dennis@home wrote: Smart meters don't use the internet, they use SMS. Who said anything about "the Internet". They can also use Zigbee and other short haul radio technologies. Wireless M-Bus for one ... |
#91
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Radio Antenna on street lights
"mogga" wrote in message ... We're getting some new street lights and have noticed they have little antennas on the top. What is it for? They look like they have a light detetctor same as the old ones too. -- http://www.voucherfreebies.co.uk I think the ones in Edinburgh are part of the BusTracker system. |
#92
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Radio Antenna on street lights
On Sun, 15 Dec 2013 09:00:04 +0000, Tim Watts wrote:
Nearest street lights to here are a mile and a half away. On a clear moonless night the stars and milky way are stunning and provide enough light to move about safely. Moon light is more than enough. There is a bit of light pollution from Carlisle 30 miles away if you know where to look but Teeside is the worst at over 40 miles, I pity those that can only see a few of the brightest stars due to light pollution. I remember a camping trip to Cape Wrath 20 years ago. It was so unpoluted, as you say, the arms of the Milky Way were distinct and it was like seeing into infinity with clarity. Yep, it's like that here. Nearest street light's at least four-five miles away with a big hill in the way. The nearest small city is 20 miles away, and contributes no light pollution at all. Friends from London just stand and stare in amazement. |
#93
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Radio Antenna on street lights
On 15/12/2013 08:57, Tim Watts wrote:
On Saturday 14 December 2013 23:08 dennis@home wrote in uk.d-i-y: On 14/12/2013 18:39, Tim Watts wrote: On Saturday 14 December 2013 16:56 dennis@home wrote in uk.d-i-y: On 14/12/2013 08:25, Tim Watts wrote: On Friday 13 December 2013 23:10 dennis@home wrote in uk.d-i-y: On 13/12/2013 16:42, Tim Watts wrote: One of the reasons I do not want a smartmeter for electricity... Smart meters don't use the internet, they use SMS. Who said anything about "the Internet". They can also use Zigbee and other short haul radio technologies. They can use wet string but they don't. http://openenergymonitor.org/emon/node/2820 That's what the meter uses to send data to the display, it doesn't mean you can send stuff to the meter. Justification? Justify what? Why do you think they want to know what mobile phone signals are like where you live before they will fit a smart meter? |
#94
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Radio Antenna on street lights
In article o.uk, Dave
Liquorice scribeth thus On Sat, 14 Dec 2013 12:27:30 -0000, Uncle Peter wrote: I think streetlights are a waste of money. My car has headlights. Nearest street lights to here are a mile and a half away. On a clear moonless night the stars and milky way are stunning and provide enough light to move about safely. Moon light is more than enough. So there is a good reason to be up in them thar hills then Dave;?... -- Tony Sayer |
#95
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Radio Antenna on street lights
In article , Geoff Pearson
scribeth thus "mogga" wrote in message .. . We're getting some new street lights and have noticed they have little antennas on the top. What is it for? They look like they have a light detetctor same as the old ones too. -- http://www.voucherfreebies.co.uk I think the ones in Edinburgh are part of the BusTracker system. I doubt they need to do that most bus tracker systems work up in Band 3 174 to 230 odd MHz and use GPS for the location service and then transmit that info back to the bus stops on either Band 3 or GSM of some flavour... Sometimes even on 459 odd MHz licence exempt services.. Like the car parks around here.. One here with the aerial some 40 deg off beam;!.. http://goo.gl/maps/Fxra9 -- Tony Sayer |
#96
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Radio Antenna on street lights
In message , tony sayer
writes Sometimes even on 459 odd MHz licence exempt services.. Like the car parks around here.. One here with the aerial some 40 deg off beam;!.. http://goo.gl/maps/Fxra9 Any new systems going in now Tony tend to use DMR and send GPS info back on the radio channel. We have equipped a few bus companies and also a lot of traffic warden schemes. -- Bill --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com |
#97
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Radio Antenna on street lights
In article , Bill
scribeth thus In message , tony sayer writes Sometimes even on 459 odd MHz licence exempt services.. Like the car parks around here.. One here with the aerial some 40 deg off beam;!.. http://goo.gl/maps/Fxra9 Any new systems going in now Tony tend to use DMR Digital version of analogue PMR private mobile radio.. and send GPS info back on the radio channel. We have equipped a few bus companies and also a lot of traffic warden schemes. Ones with built in distruct capabilities perhaps.. After having a run in with a real Hitler the other day after coming back from the doctors with a very bad bout of gout;((... -- Tony Sayer |
#98
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Radio Antenna on street lights
In message , tony sayer
writes Any new systems going in now Tony tend to use DMR Digital version of analogue PMR private mobile radio.. and send GPS info back on the radio channel. We have equipped a few bus companies and also a lot of traffic warden schemes. Ones with built in distruct capabilities perhaps.. After having a run in with a real Hitler the other day after coming back from the doctors with a very bad bout of gout;((... Well. They do have a "stun" "unstun" facility, but I think it only refers to the radio and not the operator, unfortunately. Sorry to hear about the gout. -- Bill --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com |
#99
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Radio Antenna on street lights
On Thursday, 12 December 2013 19:12:58 UTC, mogga wrote:
We're getting some new street lights and have noticed they have little antennas on the top. What is it for? They look like they have a light detetctor same as the old ones too. -- http://www.voucherfreebies.co.uk Weve just got these outside our house and our Wifi is now limited to the room where the router is instead of the whole house :S |
#101
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Radio Antenna on street lights
On 19/06/2014 22:06, tony sayer wrote:
In article , scribeth thus On Thursday, 12 December 2013 19:12:58 UTC, mogga wrote: We're getting some new street lights and have noticed they have little antennas on the top. What is it for? They look like they have a light detetctor same as the old ones too. Weve just got these outside our house and our Wifi is now limited to the room where the router is instead of the whole house :S These things here?. If there're seemingly causing you wi-fi problems then I'd look elsewhere for the cause of that problem as they work at very low power around the 868 MHz band waay below that used for wi-fi applications.... http://www.telensa.com/systems-produ...s-and-modules/ Scroll down a bit.. Could the council be planning to roll out "free" wi-fi on the streets? The test signals prior to an announcement could cause the problems reported. To the poster with the problem, try changing the channel on your wifi system. It could be that by coincidence your neighbour has either just installed wi-fi, or has changed their channel for some reason, such as installing a new router. One of the network sniffer programs will tell you if interference is likely to be the cause and suggest the best channel to use. -- Tciao for Now! John. |
#102
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Radio Antenna on street lights
On 19/06/2014 21:45, wrote:
On Thursday, 12 December 2013 19:12:58 UTC, mogga wrote: We're getting some new street lights and have noticed they have little antennas on the top. What is it for? They look like they have a light detetctor same as the old ones too. -- http://www.voucherfreebies.co.uk Weve just got these outside our house and our Wifi is now limited to the room where the router is instead of the whole house :S There are some programs that can determine wifi signal strengths you might find useful: One I have used is INSSIDER http://www.metageek.net/products/inssider/ |
#103
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Radio Antenna on street lights
tony sayer wrote:
In , scribeth thus On Thursday, 12 December 2013 19:12:58 UTC, mogga wrote: We're getting some new street lights and have noticed they have little antennas on the top. What is it for? They look like they have a light detetctor same as the old ones too. -- http://www.voucherfreebies.co.uk Weve just got these outside our house and our Wifi is now limited to the room where the router is instead of the whole house :S These things here?. If there're seemingly causing you wi-fi problems then I'd look elsewhere for the cause of that problem as they work at very low power around the 868 MHz band waay below that used for wi-fi applications.... http://www.telensa.com/systems-produ...s-and-modules/ Scroll down a bit.. 3rd harmonics? How does low power equate to distance operation? |
#104
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Radio Antenna on street lights
Fredxxx wrote:
On 19/06/2014 21:45, wrote: On Thursday, 12 December 2013 19:12:58 UTC, mogga wrote: We're getting some new street lights and have noticed they have little antennas on the top. What is it for? They look like they have a light detetctor same as the old ones too. -- http://www.voucherfreebies.co.uk Weve just got these outside our house and our Wifi is now limited to the room where the router is instead of the whole house :S There are some programs that can determine wifi signal strengths you might find useful: One I have used is INSSIDER http://www.metageek.net/products/inssider/ Also wifi analyser on Android phones. Very comprehensive data. |
#105
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Radio Antenna on street lights
On Thu, 19 Jun 2014 13:45:48 -0700 (PDT),
wrote: On Thursday, 12 December 2013 19:12:58 UTC, mogga wrote: We're getting some new street lights and have noticed they have little antennas on the top. What is it for? They look like they have a light detetctor same as the old ones too. -- http://www.voucherfreebies.co.uk Weve just got these outside our house and our Wifi is now limited to the room where the router is instead of the whole house :S. Complain, then. RF polution from poor designed devices is becoming a major problem. I don't know for sure what the idea is behind this, but I am aware that there is a new methodology for detecting street lights that are about to fail by examining their RF profiles with a spectrum analyser. Antennas on the posts enable the people monitoring the lights to do so from further away; therefore more quickly and cheaply than having to drive directly to each and every one of them. |
#106
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Radio Antenna on street lights
On 19/06/14 21:45, wrote:
On Thursday, 12 December 2013 19:12:58 UTC, mogga wrote: We're getting some new street lights and have noticed they have little antennas on the top. What is it for? They look like they have a light detetctor same as the old ones too. -- http://www.voucherfreebies.co.uk Weve just got these outside our house and our Wifi is now limited to the room where the router is instead of the whole house :S Have you tried changing your Wifi channel? |
#107
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Radio Antenna on street lights
On Thu, 19 Jun 2014 23:34:00 +0100, Capitol wrote:
Also wifi analyser on Android phones. Very comprehensive data. For some WiFi signals. It doesn't show point to point WiFi based links, Bluetooth, various video senders, leaky microwave ovens and all manner of other kit that uses that bit of spectrum. Such things have a use but be aware you don't see the whole picture. There might be software for PC's that do give a proper spectrum analayser display, that is the actaul RF level over band of frequencies. -- Cheers Dave. |
#108
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Radio Antenna on street lights
Have we come back to last Christmas. I though this was solved?
Brian -- From the Sofa of Brian Gaff Reply address is active wrote in message ... On Thursday, 12 December 2013 19:12:58 UTC, mogga wrote: We're getting some new street lights and have noticed they have little antennas on the top. What is it for? They look like they have a light detetctor same as the old ones too. -- http://www.voucherfreebies.co.uk Weve just got these outside our house and our Wifi is now limited to the room where the router is instead of the whole house :S |
#109
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Radio Antenna on street lights
On 20/06/14 09:10, Brian Gaff wrote:
Have we come back to last Christmas. I though this was solved? inkeysdownham seems to have a new problem... |
#110
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Radio Antenna on street lights
In article , Cursitor Doom
scribeth thus On Thu, 19 Jun 2014 13:45:48 -0700 (PDT), wrote: On Thursday, 12 December 2013 19:12:58 UTC, mogga wrote: We're getting some new street lights and have noticed they have little antennas on the top. What is it for? They look like they have a light detetctor same as the old ones too. -- http://www.voucherfreebies.co.uk Weve just got these outside our house and our Wifi is now limited to the room where the router is instead of the whole house :S. Complain, then. RF polution from poor designed devices is becoming a major problem. Complain to whom exactly?. 2.4 Ghz is a free for all these days and thats just "tough".. You might try 5.8 Ghz theres more room up there if your equipment is equipped for that band..... I don't know for sure what the idea is behind this, but I am aware that there is a new methodology for detecting street lights that are about to fail by examining their RF profiles with a spectrum analyser. Antennas on the posts enable the people monitoring the lights to do so from further away; therefore more quickly and cheaply than having to drive directly to each and every one of them. -- Tony Sayer |
#111
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Radio Antenna on street lights
In article , Capitol
scribeth thus tony sayer wrote: In , scribeth thus On Thursday, 12 December 2013 19:12:58 UTC, mogga wrote: We're getting some new street lights and have noticed they have little antennas on the top. What is it for? They look like they have a light detetctor same as the old ones too. -- http://www.voucherfreebies.co.uk Weve just got these outside our house and our Wifi is now limited to the room where the router is instead of the whole house :S These things here?. If there're seemingly causing you wi-fi problems then I'd look elsewhere for the cause of that problem as they work at very low power around the 868 MHz band waay below that used for wi-fi applications.... http://www.telensa.com/systems-produ...s-and-modules/ Scroll down a bit.. 3rd harmonics? How does low power equate to distance operation? Nope, the people who designed and built that system know exactly what there're doing!. There're a spin off of this one who if you look at their client list you'll see there very highly regarded.. http://www.plextek.com/about-us/clients.html http://www.plextek.com/about-us/linked-companies.html They use very ultra narrowband techniques for that a bit of which I think is patented.. -- Tony Sayer |
#112
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Radio Antenna on street lights
tony sayer wrote:
In , Capitol scribeth thus tony sayer wrote: In , scribeth thus On Thursday, 12 December 2013 19:12:58 UTC, mogga wrote: We're getting some new street lights and have noticed they have little antennas on the top. What is it for? They look like they have a light detetctor same as the old ones too. -- http://www.voucherfreebies.co.uk Weve just got these outside our house and our Wifi is now limited to the room where the router is instead of the whole house :S These things here?. If there're seemingly causing you wi-fi problems then I'd look elsewhere for the cause of that problem as they work at very low power around the 868 MHz band waay below that used for wi-fi applications.... http://www.telensa.com/systems-produ...s-and-modules/ Scroll down a bit.. 3rd harmonics? How does low power equate to distance operation? Nope, the people who designed and built that system know exactly what there're doing!. There're a spin off of this one who if you look at their client list you'll see there very highly regarded.. http://www.plextek.com/about-us/clients.html http://www.plextek.com/about-us/linked-companies.html They use very ultra narrowband techniques for that a bit of which I think is patented.. I'd like to see a spectrum analysis of the complete lamp/wireless assembly. The word "dimmable" on a discharge lamp does not inspire confidence. |
#113
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Radio Antenna on street lights
On Fri, 20 Jun 2014 09:46:55 +0100, Tim Watts
wrote: On 20/06/14 09:10, Brian Gaff wrote: Have we come back to last Christmas. I though this was solved? inkeysdownham seems to have a new problem... ....Posting via Google Groups! I thought his name was inspired by Sinclair Basic, but it turns out that he does pokes of an entirely different kind. -- Graham. %Profound_observation% |
#114
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Radio Antenna on street lights
On Thursday, 19 June 2014 22:41:29 UTC+1, Fredxxx wrote:
On 19/06/2014 21:45, wrote: On Thursday, 12 December 2013 19:12:58 UTC, mogga wrote: We're getting some new street lights and have noticed they have little antennas on the top. What is it for? They look like they have a light detetctor same as the old ones too. -- http://www.voucherfreebies.co.uk Weve just got these outside our house and our Wifi is now limited to the room where the router is instead of the whole house :S There are some programs that can determine wifi signal strengths you might find useful: One I have used is INSSIDER http://www.metageek.net/products/inssider/ istumbler for mac. http://www.istumbler.net/ |
#115
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Radio Antenna on street lights
On Friday, 20 June 2014 11:09:45 UTC+1, Capitol wrote:
tony sayer wrote: In , Capitol scribeth thus tony sayer wrote: In , scribeth thus On Thursday, 12 December 2013 19:12:58 UTC, mogga wrote: We're getting some new street lights and have noticed they have little antennas on the top. What is it for? They look like they have a light detetctor same as the old ones too. -- http://www.voucherfreebies.co.uk Weve just got these outside our house and our Wifi is now limited to the room where the router is instead of the whole house :S These things here?. If there're seemingly causing you wi-fi problems then I'd look elsewhere for the cause of that problem as they work at very low power around the 868 MHz band waay below that used for wi-fi applications.... http://www.telensa.com/systems-produ...s-and-modules/ Scroll down a bit.. 3rd harmonics? How does low power equate to distance operation? Nope, the people who designed and built that system know exactly what there're doing!. There're a spin off of this one who if you look at their client list you'll see there very highly regarded.. http://www.plextek.com/about-us/clients.html http://www.plextek.com/about-us/linked-companies.html They use very ultra narrowband techniques for that a bit of which I think is patented.. I'd like to see a spectrum analysis of the complete lamp/wireless assembly. The word "dimmable" on a discharge lamp does not inspire confidence. I thought they were meant to go over to those LEDs that project more light down rather than up. http://www.bromley.gov.uk/info/20008...eet_lighting/2 |
#116
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Radio Antenna on street lights
These things here?. If there're seemingly causing you wi-fi problems then I'd look elsewhere for the cause of that problem as they work at very low power around the 868 MHz band waay below that used for wi-fi applications.... http://www.telensa.com/systems-produ...s-and-modules/ Scroll down a bit.. 3rd harmonics? How does low power equate to distance operation? Nope, the people who designed and built that system know exactly what there're doing!. There're a spin off of this one who if you look at their client list you'll see there very highly regarded.. http://www.plextek.com/about-us/clients.html http://www.plextek.com/about-us/linked-companies.html They use very ultra narrowband techniques for that a bit of which I think is patented.. I'd like to see a spectrum analysis of the complete lamp/wireless assembly. The word "dimmable" on a discharge lamp does not inspire confidence. I doubt that anything EMC related would be missed by the above firms involved in that. They have some -very- comprehensive testing facilities... -- Tony Sayer |
#117
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Radio Antenna on street lights
I thought they were meant to go over to those LEDs that project more light down
rather than up. http://www.bromley.gov.uk/info/20008.../street_lighti ng/2 Well they are mindful of light pollution these days. However our local council have reduced the overall light in our street by not replacing one lamppost when they "upgraded" them;(... -- Tony Sayer |
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