Running my simplex node on 146.550, I thought it would be nice to see what sort of coverage I achieve with a 1/4 wave ground plane vertical antenna. Just in case Dick Tracy ever asks.
There’s a great tool being hosted by VK2BE at www.ve2dbe.com which lets you generate an RF coverage map easily.
That’s with my house at 13 m ASL, and the antenna at 9 m AGL. The radio is 24 W with the antenna having 0 db gain.