Yeh mate spend your 80 quid on another lesson , you really dont need a scanner , I assume its to listen in to atc exchanges? More ofetn than not you can only pick up direcctor/approach atis etc's anyway not much use to you really youll confuse yourself. If your at a nice small friendly airfield you would do just as well sitting in the tower for a while and listening in to whats goes on . Your PPL flying training will be more than enough to help you with the radio , and youve got the RT exam too, if all else fails try ebay