Gen question - I'm presuming you have a ham licence - What would the reaction / response be if a non-ham licenced person bought one of those and attempted to converse with others on various channels?
Somewhere or another I'm licensed on aeronautical freqs but...I doubt I can just tune into Heathrow ground and give it "One Nine for a copy"
The Wireless Telegraphy Act 2006 gives the official answer although they have to catch you first...
"
35Unauthorised use etc of wireless telegraphy station or apparatus
(1)A person commits an offence if he contravenes section 8.
(2)A person who commits an offence under this section consisting in the establishment or use of a wireless telegraphy station, or the installation or use of wireless telegraphy apparatus, for the purpose of making a broadcast is liable—
(a)on summary conviction, to imprisonment for a term not exceeding 12 months or to a fine not exceeding the statutory maximum or to both;
(b)on conviction on indictment, to imprisonment for a term not exceeding two years or to a fine or to both.
(3)In the application of subsection (2) to Scotland or Northern Ireland the reference to 12 months is to be read as a reference to six months.
(4)A person who commits an offence under this section consisting in the installation or use of receiving apparatus is liable on summary conviction to a fine not exceeding level 3 on the standard scale.
(5)A person who commits an offence under this section other than one falling within subsection (2) or (4) is liable on summary conviction to imprisonment for a term not exceeding 51 weeks or to a fine not exceeding level 5 on the standard scale or to both.
(6)In the application of subsection (5) to Scotland or Northern Ireland the reference to 51 weeks is to be read as a reference to six months.
(7)In this section “broadcast” has the same meaning as in Part 5.