Assertion: radio's receiver | /r/HasProperty | activated
Facets:
Source sentences:
text: When the user wants to talk he presses a "push-to-talk" button, which turns off the receiver and turns on the transmitter; when he releases the button the receiver is activated again.
text: In these systems the radio signal is encrypted and can only be decrypted by the receiver, which is controlled by the company and can be deactivated if the customer doesn't pay his bill.