I have customers who only use Terrawave antennas or PCTEL antennas and not Cisco antennas because of cost. They work fine for indoor and outdoor applications from what I have seen and tested in the past. These guys specialize in antennas, so it's not like they will not work. Don't expect to see the antennas in WCS/NCS/PI and like everyone else mentioned, TAC will not support these if you tell them that your using them:)
We planned to use antennas from another supplier to be used with 3702e. Our customer got info from Cisco that he won't be supported by Cisco because of use these antennas. So I found that TerraWave is Cisco Preferred Partner. Will Cisco support AP 3702e with antennas from TerraWave ?
We want to use this antenna http://www.terra-wave.com/shop/245-ghz-1011-dbi-panel-antenna-with-nstyle-jack-connector-p-2575.html.