I’ve been on FA for awhile, but just recently got back into sharing data and upgrading my old RTL dongle with the stubby antenna.
I picked up several Raspberry Pi Zero W’s (amazing deal for what they can do) and switched the setup out to the FA Pro stick with filter built in and FA antenna on Amazon with 15 feet of RG58 N to SMA cable.
I have alongside it another RPi0 with another FA Pro stick with filter built in with this ebay antenna on 15 feet of RG316 MCX cable running through two 50 ohm. SMA to MCX converters.
They are mounted right next to each other on my roof and I’m seeing the cheapo eBay antenna outperform the 4x more expensive FA antenna, even with the better RG58 cable. I just changed it out so I will continue to monitor I suppose before possibly sending the FA antenna back I thinks.