It seems to me like having Ubiquiti certified with various WISP antennas
would be far cheaper than certifying each combination of Routerboard /
Wireless Card / Case / Antenna combination.


-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Forrest W. Christian
Sent: Tuesday, June 12, 2007 11:13 AM
To: WISPA General List
Subject: Re: [WISPA] Question posed to the FCC

Mike Hammett wrote:

> The XR5 is certified with a 31.4 dbi antenna.  Nothing in the FCC 
> certification says what type of antenna.  Someone I spoke with 
> familiar with the certification process said the type doesn't matter, 
> only maximum (perhaps minimum too, I can't remember) gains. 

Actually it appears to have been tested with the following two antennas:*

*Hyperlinktech, Dipole, HG2403RD-RSF, 3dbi
Radio waves, Parabolic, SP1.5(2/3)-5.8, 31.4dBi.

The ceritificate at the FCC is for 5.7 only.  Not sure what happened to 
the 2.4 grant.

So it looks like you can use the XR5 in 5.7 with the radiowaves 
antenna.  However, any other antennas would be illegal until such time 
as Ubiquiti specifies in writing that the additional antennas are legal 
to use, with specific model numbers.   I would, however, be skeptical of 
anything but a Parabolic of some sort, since the FCC requires the 
certification testing be done for each antenna "type" - where type is 
not neccessarily just "parabolic", but things like "parabolic with 
dipole feed, DC open, and a specific in and out of band gain pattern".   
I would expect there to be no problem with Ubiquiti saying that the 
lower gain radiowaves 5.8ghz parabolic antennas are ok,  but anything 
else may require additional testing.

-forrest
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