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Advice on using repeater for NLOS wireless CCTV camera
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March 26, 2015
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March 26, 2015 - 4:51 pm
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I am new to CCTVs/Security Cameras in general so please bear with me Embarassed…I’m trying to replace 2 wired analog security cameras at my aunt’s commercial property due to loss of video connection. The system is 8-10 years old, part of a Lorex L19LD800 8-camera dvr system. At this point, she prefers not to replace the dvr unless absolutely necessary. I suspect the BNC line has an interruption at some point but because the line is several hundred feet long and is routed through a warehouse up about 20-30 feet in the air along I-beams, I think it would be easier to replace them with 2 wireless cameras instead. The problem is that there is a building in the way which is an obstacle between the camera position of one of the two planned wireless cameras and the office where the dvr is located. The other wireless camera has line-of-sight to the office dvr. 

From hours of Googling, I have seen discussions which seem to suggest that it is possible to set up a relay or repeater, which could route the signal around the corner of the obstacle building. I’ve included a diagram below to hopefully clarify the situation. I have no idea what such a repeater might be and would appreciate any advice or help in finding an appropriate device. I’m aware of wifi repeaters, of course, but since this is not wifi, don’t know what to even look for. I’ve seem a few during my web search that looked like they might be what I’m looking for:

wireless-camera-diagram.jpgImage Enlarger

Wireless 2.4G to 2.4G Audio Video Signal Amplifier Repeater


Here are the specs:

Wireless cameras: Revo RCWBS30-1BNC 2.4 GHz with added TP-Link TL-ANT2408CL 8dBi Omni-directional Antenna

Antennas on office building for dvr receiver: TRENDnet TEW-AO08O 8dBi Outdoor Omni Directional Antenna

Thank you in advance for your help!

Jose Malave
Boca Raton, Florida
Forum Posts: 820
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January 3, 2014
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March 26, 2015 - 5:04 pm
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Welcome to the Forum!

When it comes to Analog Video Wireless Transmitters they often do not work properly because of interference from other items on the same Frequencies, It is best to run new cable if you do not want to replace the existing cable in your current system. If you are able to replace the system you have the ability to use Tp-Loco's with Network cameras that will offer a greater detail than an Analog System will. The 2.4Ghz band is something that WiFi,Cordless Phones, Baby Monitors, VOIP Phones with WiFi Stations, Bluetooth, Car Alarms etc.. operate on, this means this band is congested in many areas specially in a commercial location and any buildings or trees may also interfere with the normal operation of such device.  If you need assistance in Designing the perfect System for your needs please do not hesitate to give us a call. My Ext is on my signature if you wish to reach me directly.   

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