I am guessing you would be safe in going up in antenna gain as long as the EIRP did not exceed the licensed level. While it may not technically be perfectly legally kosher, it would be within the spirit of the law if not the letter.
From: Colin Stanners Sent: Wednesday, July 19, 2017 1:49 PM To: af@afmug.com Subject: Re: [AFMUG] licensing for bigger antennas than installed in 11ghz Considering their goal of reducing interference through more directional antennas, I'm sure that installing a different antenna than licensed, especially a smaller one, is a big no. On Wed, Jul 19, 2017 at 2:33 PM, Steve Jones <thatoneguyst...@gmail.com> wrote: we have some links we are about to license, we can "get by" with 2' antennas, but one is right on that margin. we can do 2' all day long at all the sites involved, anything bigger and wed have to do some retrofits that will create some other issues, not a huge deal, just prefer to not have to deal with the repercussions we would like to have some troubleshooting flexibility down the road. maybe a 4 and a 2 or 2 3s, just depending on how the actual path performs over time so can we do that, license them all with 3 or 4' and install 2' today? I'm thinking no because of the antenna patterns on the PCNs not being as narrow with the smaller antenna, but id like to hear its totally doable with fcc blessing and they'll even send a guy with a rope to pull them up for us
