Dangerous antenna?
Can the 2G/AO8 2.4GHz 7dBi omnidirectional antenna prove to be dangerous if human beings are around it? If it is used in as a hotspot antenna in a cafe or restaurant, would it be a viable solution? Or would it be better to pruchase a cheaper SMA-connector antenna?
Go to
http://n5xu.ae.utexas.edu/rfsafety/
You can calculate safe RF exposure limits that apply for amateur radio use.
A good guideline to go by.
I wouldn't worry about the flea power coming from the devices. Like the other guy said, your cell phone is putting out 200mw right at your head.
http://n5xu.ae.utexas.edu/rfsafety/
You can calculate safe RF exposure limits that apply for amateur radio use.
A good guideline to go by.
I wouldn't worry about the flea power coming from the devices. Like the other guy said, your cell phone is putting out 200mw right at your head.
Depending on the cell phone and distance to the base station, RF output can be as high as 2 Watt, but the Specific Absorption Rates (SAR) value from Coussas hotspot antenna is nothing compared to talking in a cell phone without use of hands-free devices.Like the other guy said, your cell phone is putting out 200mw right at your head.
Coussa, if you are concerned about RF, there are a simple steps you can take to minimize your RF exposure. You can place more distance between peoples body and the source of the RF, as the exposure level drops off dramatically with distance.
I read that a typical cell phone generates an average RF power level of 0.6 W for an analog unit and less for a digital unit. The newer code division multiple access (CDMA) models have adaptive level control, so they send the minimum signal necessary to satisfy the base station.
For example, Nokia 3650 is rated for 1 watt of RF power and some other phones use Philips BGY122A and BGY122B 1.2-Watt UHF Amplifier. Both modules provide a minimum power gain of 27.8 dB, which means that only 2 mW of RF drive is required to deliver an output power of 1.2 W into a 50 ohm antenna load.
Here is a triband cell phone with 2 watt transmitter power.
http://www.hazardousareadirect.com/Prod ... ANDY04.htm
For example, Nokia 3650 is rated for 1 watt of RF power and some other phones use Philips BGY122A and BGY122B 1.2-Watt UHF Amplifier. Both modules provide a minimum power gain of 27.8 dB, which means that only 2 mW of RF drive is required to deliver an output power of 1.2 W into a 50 ohm antenna load.
Here is a triband cell phone with 2 watt transmitter power.
http://www.hazardousareadirect.com/Prod ... ANDY04.htm
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