I agree, having learned at Quonset Point, RI (Class D). I have a ZAON MRX collision avoidance device that listens to transponders and tells you if one's at your altitude and how far away and if they're level, climbing or descending. Not much - a little like an auto's radar detector, but it gives me a little comfort. It unfortunately is fallible - once I had a glider silently flash in front of me right to left. Soon saw the pilot on the ground and he said he had a Mode C Xponder going - if so, my unit somehow missed it.
Beach
