Never heard this before!

[lazybloke]

It is illegal to use a hand-held, two-way communication device whilst driving. You can legally use a mobile phone via hands-free methods.

You can use CB radio when driving.

 

[figbat]

Yes, there is a specific exclusion for 2-way radio within certain frequency ranges. However you could still be done for careless driving, or it may be a contributing factor in any incident, just like phone use was before the law was introduced.