Thank you guys.  This is exactly as I suspected, but was never 100% sure.

> On Feb 6, 2015, at 3:07 PM, Josh Luthman <[email protected]> wrote:
> 
> The frequency you select is the center frequency.  If it's 20, it's 10 above 
> and 10 below.  IE 5840 actually uses 5830-5850.  Note that it isn't a finite 
> cut off and obviously that doesn't add exactly to 20.  Cheaper (Ubnt) stuff 
> also bleeds way more than many other products which means it goes even 
> farther than the 20 MHz it is supposed to.
> 
> 
> Josh Luthman
> Office: 937-552-2340
> Direct: 937-552-2343
> 1100 Wayne St
> Suite 1337
> Troy, OH 45373
> 
> On Fri, Feb 6, 2015 at 5:04 PM, Brett A Mansfield 
> <[email protected] <mailto:[email protected]>> wrote:
> I've been using UBNT equipment for a few years now and one thing has always 
> confused me. I cannot tell the east frequencies that my radios are using.
> 
> For example, in airOS 5.x I can select 5840 and put it to 5, 10, 20, 30 or 40 
> MHz channels. How do I know what full spectrum the radio is using? Is it 
> 5800-5840, 5805-5845, 5810-5850, etc?
> 
> I have done a lot of web searching on this and find nothing. I've only been 
> involved in wireless for 3 years and have been self taught, so perhaps this 
> is a rookie question I should already know?
> 
> Thank you,
> Brett A Mansfield
> 

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