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[Equipment] First time 900 Canopy configuration »
« Who runs around after storms to fix customers?  
Equis
Premium
join:2005-03-18
Australia

Changing Polarization

Hello

I would like to run 2x 900 canopy units on the same frequency, same pole, same direction using sync.

If I change the Polarization of one yagi could I expect to have about a 10db loss/separation?

Thanks

permalink · 2009-07-02 00:07:45 · Reply to this
Smokeshow
Premium
join:2009-02-26
Cold Lake, AB

Re: Changing Polarization

900 AP's or SM's? If they are SM's, then are they on the same AP? We need a bit more info on this one.

Generally, if you are using sync properly, you should be fine running on the same polarization
permalink · 2009-07-02 00:16:03 · Reply to this
Equis
Premium
join:2005-03-18
Australia

 Hello

I have 2 AP's very very close and was hoping that using opposite Polarization on one of them (Ap and all its sms) would stop the other AP's sm's screaming at the wrong AP

just wondering how much it would help

permalink · 2009-07-02 00:21:25 · Reply to this

Mad Dawg
Mad Dawg
Premium
join:2006-03-19

Re: Changing Polarization

In theory you should have 20 db of separaton by using opposite polarity but as smokeshow said if your using the sync abilities on the motos it shouldnt matter
permalink · 2009-07-02 08:54:50 · Reply to this

IntraLink
Premium,MVM
join:2002-08-14
Utah Valley		 That's probably not going to work on the same channel.

You would need a lot of physical separation like maybe 100 feet to get anything out of the cross polarization on the AP side.
permalink · 2009-07-02 09:57:36 · Reply to this

AMD Phreak
Premium
join:2003-12-14

 Same direction will not work, as Intralink has suggested. Even with sync you will be mashing the front end of the receiver every time someone talks back to the cluster. This will occur even with cross-polarization as the radio reciever sensitivity is very high in comparison to what the received signal will be.

Vertical spacing will be the only potential solution, and even then I have my doubts.
permalink · 2009-07-02 10:34:53 · Reply to this
Forums » Industry Forums » Wireless Service Providers[Equipment] First time 900 Canopy configuration »
« Who runs around after storms to fix customers?  

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