I've had the RF Explorer for over 5 years but only just tried the PC software for it.
930 - 935MHz: O2 (3G) base stations
390 - 395MHz: Airwave TETRA base stations
955 - 960 MHz: O2 (2G) base stations
452.5 - 457.5 MHz: Various business radio users, mostly continuous trunking data and DMR
950 - 955 MHz: Vodafone (2G) base stations - a lot lower than O2's sites here
I've ordered a WSPRlite to get myself back on HF, if only at very low power.