How can I listen to aircraft?
You need a radio receiver that tunes the aircraft communications band, which runs from 118.0 to 135.9 megacycles or megahertz. Manchester (New Hampshire) tower frequency is 121.3 mc. and ground control is 121.9, but you may not be able to hear them if you live very far away. Radio receivers that tune those frequencies are available, but they may be overpriced. It is NOT illegal to listen to those frequencies, but you may not transmit on them unless you are in an aircraft. You could build your own by converting an old FM radio receiver which goes from 88 to 108 mc. Hope this helps answer your question.