Within a few minutes of switching the receiver on, it was clear that this was going to work well. The image below is a capture taken from the receiver and shows nearly 400 aircraft.
Although the Martello Tower is practically at sea level and the receiver only around 14m AGL, it has a completely clear view to the horizon in all directions which is an important point for ADS-B receivers.
Martello Tower Group, 2009-2021
©