Wireless Microphones: Do you need a Licence?

No one should be running equipment in the 500-800 UHF band its too small and likely to be sold off to the highest bidder in the non to distant future. If you want to get a system avoid UHF and go with something operating in 1G, 2.4G or 5G bands. I don't know why Shure keep pushing UHF - perhaps its because 99% of their product lineup is all UHF - except for GLX-D (4-8 systems max on 2.4G).

863-865Mhz is very narrow. if my neighbour use the wireless mic at the same time. will my mic will be interrupted or disturbed by them?
can i use the frequency above 900Mhz ?

Is there a 'free' frequency range available for amateurs or documentary shooters that want to use a wireless system in the UK without a license fee? for say upto 4 microphones max? im looking at some senhisser g3s on ebay.

Quick question. If I have a system that is capable of using a band that needs a license, but i only use the unregulated option, do i need one?

Thank you for this straightforward information, very helpful.