Hi. I currently use an old Radio Shack Pro 89 scanner to pick up aviation frequincies when ever I'm plane spotting at Los Angeles International. Here's my problem I have a large 40" antenna plugged into it thinking that would improve audio quality and range but for some reason even though I'm less then a mile from the tower at LAX and aircraft. The audio quality is fuzzy sometimes. Don't get me wrong, sometimes the audio is crystal clear but most of the time I can't pick up planes less then a mile away down the runway or the tower clearly. Would buying a newer, more modern scanner improve the audio quality and range?