@Philbert I'm actually getting around -80dB 3/4 of the way down the garden and reasonable throughput.

@Philbert I'm not convinced by this, having had some experience with military comms. I was looking at the Deco X50-Outdoor, which bizarrely claims a coverage of 2500sqft. Is that 25x100ft, or 50x50ft...

@Philbert Surely the sensitivity of the receiver in the X20 plays a significant role? My phone detects the AP and initiates a connection, but it gets dropped almost immediately.

We have a garden that is 40m long. With an X20 in the window we can get a signal quite a long way down the garden. Is there anything that might reach the whole way?