Andy Greg is the expert on this and posted this information about a year ago:

"According to the radio technician i have go to know the new system will be in place by July. It just means the output will move from 820meg to 850meg range
and the new inputs will be digital in the 470meg range which will make the reception better for all. And also the RFL radios they were selling at the 4 nations will work again. My new found friend will keep me updated."

I am not sure if anything has changed since then and what frequency the coaches use - anyone know?

I should imagine the coach signals will be encrypted so that the opposition can't hear whats being said.

I'm not sure if you can encrypt signal this way on what they use but I imagine you can seeing as you can with mobile phones. Based on the principle of quickly jumping between frequencies within a particular range designed to stop anyone who shouldnt getting a hold on it. Depends how secretive coaches are really.

mine didn't either, though i noticed later one when i saw one of the sellers, it wasn't being advertised on their signs, just commentary.

Bugger
I missed that in my rush to get one and get in

Thanks for the info



Those frequencies all fall into UHF, way beyond what any normal radio can pick up. A quick Google search has left me dismayed. It looks like you have to fork out a decent amount of cash (anything from £80 - £300) to listen to those frequencies. The RFL clearly don't want people listening to the referees at normal games. With good reason I suppose.

It was great for when you miss something, but listening to Clarke and Cullen talking ballcocks is frustrating.