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Thorn · 07-28-2002

Look, this stuff is pretty complicated, and your questions are indicating a complete lack of knowledge. I'll try to help here, but please don't expect that there are any easy answers on this stuff.

A lot of this stuff is in the NetStumber FAQ threads. Look there for more details. BTW, this area is actually for FAQs, As some of these things are applicable to this as a FAQ, could you in the future, please post questions for direct help in the HELP Area?

Antenna differences:Omni antenna is omnidirectional. In other words, the signal is transmitted and received equally in all directions. Panel antenna, Parabolic antenna, Sectors antenna, and the Yagi antennae are all directional antennae. They all have different applications, which is highly dependant on the particular setup.

Trying so decide the antenna needed to a link to you friend's AP is impossible with so little information. Sorry. To figure it, you need a more exact distance (a "block" varies too much), terrain, tree info, building types, etc. Even then it will only be a wild guess.

If you want to build antennae, get the ARRL book, and scan the sites listed here for plans.

36dB legal is the highest for a Point-to-MultiPoint setup under FCC laws. 48dB is the highest for a Point-to-Point. A 50dBi antenna would be illegal under any circumstances, since you would be transmitting at a something like five times the legal limit, assuming you were pushing 15dB to a 50dBi antenna. About the highest omni you can use is 15 dBi and the highest directional is about 24dbi. FYI, FCC fines run ubout $10k (yes, 10,000 dollars) per incident. Don't do it.

Good luck, read the FAQs here. Once your questions start to get specific, you will start to get specific answers.

07-28-2002	#2 (permalink)
Thorn Did you do the math? Join Date: Apr 2002 Location: Villa Straylight Posts: 10,135	Look, this stuff is pretty complicated, and your questions are indicating a complete lack of knowledge. I'll try to help here, but please don't expect that there are any easy answers on this stuff. A lot of this stuff is in the NetStumber FAQ threads. Look there for more details. BTW, this area is actually for FAQs, As some of these things are applicable to this as a FAQ, could you in the future, please post questions for direct help in the HELP Area? Antenna differences:Omni antenna is omnidirectional. In other words, the signal is transmitted and received equally in all directions. Panel antenna, Parabolic antenna, Sectors antenna, and the Yagi antennae are all directional antennae. They all have different applications, which is highly dependant on the particular setup. Trying so decide the antenna needed to a link to you friend's AP is impossible with so little information. Sorry. To figure it, you need a more exact distance (a "block" varies too much), terrain, tree info, building types, etc. Even then it will only be a wild guess. If you want to build antennae, get the ARRL book, and scan the sites listed here for plans. 36dB legal is the highest for a Point-to-MultiPoint setup under FCC laws. 48dB is the highest for a Point-to-Point. A 50dBi antenna would be illegal under any circumstances, since you would be transmitting at a something like five times the legal limit, assuming you were pushing 15dB to a 50dBi antenna. About the highest omni you can use is 15 dBi and the highest directional is about 24dbi. FYI, FCC fines run ubout $10k (yes, 10,000 dollars) per incident. Don't do it. Good luck, read the FAQs here. Once your questions start to get specific, you will start to get specific answers. __________________ Thorn "I'm The Doctor. I'm a Time Lord. I am from the planet Gallifrey in the constellation Kasterborous. I'm 903 years old and I am the man who is going to save your lives and all 6 billion people on the planet below... You got a problem with that?" Last edited by Thorn : 07-28-2002 at 06:37 PM.