There's no need for any analogies

Only accurate descriptions.

If you have a wireless router, you are an unlicensed broadcaster. You are broadcasting data to ANY receiver which is configured to receive it.

If the network is "secured", you are broadcating encrypted data. That data is essentially worthless to anyone who does not have the decryption key.

Therefore, with your wireless router (an RF transmitter), you will always broadcast data while the device is active. The choice as to whether to make that data readable or not is entirely yours.

It is not illegal to receive broadcasts in either the USA or the UK.

So please, stop talking about imaginary "crimes".