Hello Martin (and Erik). Thanks for the prompt replies. Yes, 2.4GHz WiFi shows easily, what puzzled me was the 5GHz WiFi not appearing at all, or at least not between 5 and 6GHz.
I have no particular use for anything higher than perhaps the 3rd harmonic of 23cms (3 x 1296MHz), but was slightly concerned that I couldn¡¯t see even a hint of the 5GHz WiFi.
Dave G4AON