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Increasing Wi-Fi SNR with NLoS - RF Cafe Forums

Because of the high maintenance needed to monitor and filter spammers from the RF Cafe Forums, I decided that it would be best to just archive the pages to make all the good information posted in the past available for review. It is unfortunate that the scumbags of the world ruin an otherwise useful venue for people wanting to exchanged useful ideas and views. It seems that the more formal social media like Facebook pretty much dominate this kind of venue anymore anyway, so if you would like to post something on RF Cafe's Facebook page, please do.

Below are all of the forum threads, including all the responses to the original posts.


 Post subject: Increasing Wi-Fi SNR with NLoS
Posted: Wed Jun 27, 2012 1:23 pm 
 
Lieutenant

Joined: Wed Jun 27, 2012 1:10 pm
Posts: 1
How can I figure out what type of antenna (e.g. omni, Yagi, parabolic, etc) I should use to increase my SNR to an 802.11n router signal to which I do not have line of sight? A straight line running between the antennas would run through approximately 30 m of interior construction. With a 1 dBi antenna the noise is at about -92 dB while the signal can range between -70 dB down to -90 dB and the link is frequently lost. How can I figure out how much gain on my antenna would be appropriate, 6 dBi, 12 dBi, 15 dBi, and what pattern would be appropriate?

I’m an EE but I have no RF experience and I'm looking to learn more about how to make such decisions.

I would greatly appreciate your advice or any references or tutorials you can point me to.

Thank you!

Mateja





Posted  11/12/2012

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