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WHT
join:2010-03-26
Rosston, TX

1 recommendation

WHT to york

Member

to york

Re: looking into starting wisp

Be aware the UBNT sector antennas' horizontal beamwidth end-points are at the -6dB level in stead of the traditional antenna specification of -3 dB.

If you 're used to traditional antenna specifications, here is what you should consider.
UBNT Traditional
120° = 90°
90° = 60°

This means you should use FOUR instead of three sector antennas for a more consistent omni coverage.
TheHox
join:2012-05-31

TheHox

Member

said by WHT:

This means you should use FOUR instead of three sector antennas for a more consistent omni coverage.

4 for 5ghz but what about 2.4? I've read a few of the "been there done that" threads on UBNT saying there is only enough spectrum to successfully do 3 2.4 120° sectors.

WHT
join:2010-03-26
Rosston, TX

WHT

Member

A-B-A-B with Chris' shields will work - may even work without the shields if radios are spaced far enough apart on a building or water tower.

Am installing a system in two weeks that will use four UBNT sector antennas with shields that can support up to 800 laptops/smartphones using only Ch. 1 and Ch. 11 out to 450 feet from 35 foot antenna elevation.