Hey guys i want to make a cell phone signal booster/repeater but i've not found a single DIY related to it.
http://forum.arduino.cc/index.php?topic=171404.0http://forum.arduino.cc/index.php?topic=171746.0Every 6 dBm receiver sensitivity gain will be double the distance.Every 6 dBi antenna gain will be double the distanceEvery 6 dBm Transmitter power gain will be double the distance.Base on Friis Transmission Equation, for sub Ghz chipset, if we select 300 Mhz v.s 900 Mhz band, the distance will be 3 times more. same thing if we select 300 Mhz v.s. 2400 Mhz, the distance will be 8 times more.
Every 6 dBi antenna gain will be double the distance.
QuoteEvery 6 dBi antenna gain will be double the distance.Only in an ideal world, or line of sight. Not in practice.
Quote from: Grumpy_Mike on Jul 04, 2013, 12:18 pmQuoteEvery 6 dBi antenna gain will be double the distance.Only in an ideal world, or line of sight. Not in practice.People use it for cell phone reception of basement, subway, elevator... None of them are line of sight.
Even the expensive commercial "repeaters" do not work. The improvement is insignificant, and the results are unreliable.
Electronics is Math
Please enter a valid email to subscribe
We need to confirm your email address.
To complete the subscription, please click the link in the
email we just sent you.
Thank you for subscribing!
via Egeo 16