Thanks to Nathan from California, the first Fabfi development kit went out the door today. With the Monday holiday, I had the chance to do a little fit testing of the hardware on a spare pole I had lying around. The itelite enclosure with integrated 18dBi dual-polarization patch took some modifications to mount the RouterStation, but was very robust and had a solid rubber gasket and grooved interface around the edges to keep water out. The built-in ethernet extension plug was also a nice touch. 19" pigtails for the external antennas exit through an optional port on the itelite enclosure and screw directly into the 2.4Ghz antennas.
Below is a sample look at the current kit spec all mounted up. Mounting with the top of the pole above the tops of the antennas is a common trick to protect against lightning strikes (20cm is usually enough):
I'd prefer to see the stock antenna mounts getting the antennas farther from the pole for decreased RF shadow and better spatial diversity, but this could be easily remedied with a crossbar. For applications requiring less 5Ghz gain, a clean option might be to offer a 6-way radome. I might get a chance to test this out in the near future.