Sry guys for not getting back to you right away. Have had quite a lot to do!
Revelati your panel Antenna is most likely 2 Biquad antennas that are stacked. With zero loses (not a reality) you get about 11 dBi + 3 dBi = 14 dBi of gain. They are really darn cool, small and effective. Easy to make but there is one detail that cannot be overlooked. Tolerances, i.e. if the coax cable going to the biquad is even off with 0.5mm it can throw off center frequency by 50MHz! Make sure you buy one from a company that does not have a sweat shop in Bangladesh. WiMo makes high quality low price stuff.Revelati
WiFi Antennas - 15 dBi Panel Antenna 2.4GHz
2.4GHz 24dBi Outdoor Grid Dish Antenna
With a Grid antenna (parabolic dish) you can easy get that kind of gain. Often the “feed” is a biquad so the above applies.
Cain#1 I have tested my 9.5 dBi out and it turned out to be 7.2 dBi. HUGE improvement all the same. CAD shows a theoretic gain of 8.91 dBi. Funny thing is that you are not the only one with this problem. I took a look on Google. I wonder if there are knock off fakes of this antenna. Mine really works well!Cain#1
have you noticed much improvement with any omni's above 2dbi like the one shipped with the alfa?
Compaq a 50 dBi would look like a laser beam metaphorically speaking. You can’t make more power with an antenna. You just concentrate it into one direction. 50 dBi is a concentration of 100000 times. 1dBi of gain is almost omnidirectional. A true 100% omnidirectional antenna (isotropic = 0 gain = the i in dB) would send just as much RF on XYZ and thus have zero gain. Often people ask me why the reception is also the same as the send dBi increase. That is because the antenna cuts out background noise that is outside of the “beam” at the same dBi. Quiets everything down and can " hear” what is in the beam path.Compaq
Just a quick question. I'm trying to fiqure out gain, and was wondering if this would be correct.
Say you had a 50db gain antenna would that be like a laser, and if you had a 1db gain antenna that would allmost be 100% omindierctional.
Pyros the next one will probably be a biquad or helix. ThxPyros
How is the site coming on I am looking forward to visiting, and creating a few diferent antennas.
vvpalin you got some really cool ideas. Should work at DARPA. For now a cheap laser pointer will have to do.vvpalin
If you really want to get fancy draw some crosshairs on your camera lol.
WLAN YAGI for Remote-Exploit - UPDATED
All the best