Is there anything special about the antennas that are out of stock or can you can pick up any 900MHz RP-SMA antenna and use them with these? I'm considering ordering the parts without the antennas and just picking them up elsewhere.
On a separate note, other than the footprint, I can essentially use these as XBee replacements right? I have a set of XBee 900MHz Pro XSC modules and GPS that I was going to use for my LOS/FPV R/C flying (no AP onboard) to do airplane tracking in case I lose my plane in the trees. Any reason why this couldn't work as an XBee replacement?