I am interested in the XR3 cards. I have read Part 90 which is for the 3.65 frequency. I seen the addon for Part 15 fcc requlations. Part 25.252 is hard to understand. I want to know what the power limit is for 3 meeters away from the antenna on a fixed base station?

Please give me knowledge about what I need to do to make the XR3 legal. The XR3 is going to get the FCC certification done this month right? If so, is that for the public frequency and the licensed?

Call me if you want: 402-534-2502 or 402-641-7692 cell.

Dallas Weitzel

there is more info in my other post, and I replied to your question from yesterday, but in short, as I understand it, the radio is getting a part 90 3.65ghz modular certification, which does NOT mean it is certified for use as is. before you can legally use the radio, it has to be part of a certified system (i.e. installed on a router board with appropriate software loaded), and the only way that it seems we're going to find a system certified with the XR3 is to go out and get it done ourselves

I suspect there may be a PS3 released by Ubiquiti sometime in the future that will be fully certified for use, but this is only a theory on my part and is in no way supported by any facts or information mentioned to me from any source.

If you're interrested in using the XR3's on a MT platform, let me know in the other thread and once I receive word from UBNT that they have received the modular certification I will contact everything interrested about shareing the costs for getting the unit certified. (note, it appears that we will have control of the certification information required for registering the equipment with the FCC, so not just anyone will be able to go and register a unit that we paid for the certification process, so sitting back and waiting for other people to front the bill so you can benifit will not likley be an option.)

I looked through the part 15 and does anyone know the exact output power per Hz. For 20hz of bandwidth would that be 20 watts because in the regulations it says 3000mv which is 1 watt per hz at any direct from 3 meters. Am I wrong. Did I say something wrong?

Dallas

the rules for 3.65Ghz state 1 Watt EIRP per MHz of channel width;

so if you are running in 5 MHz channels, then your max EIRP is 5 Watt's, but if your channel width is 20MHz then your max EIRP is 20 Watt's

for the XR3, assuming you are running at full power in 20MHz channels, then the maximim antenna gain is 18dBi without violating FCC regulations.

Thanks for your help.

Dallas