I went out on a walk with my extendable antenna to test the APRS signal. When I came home and looked at aprs.fi I got a grand total of… 2 APRS packets out.
Turns out there is horrible I-gate and digipeater coverage in the Peninsula. The nearest digipeater is 11 miles away, likely on the other side of a mountain, so with my 6W transmitter, it’s a fluke that the packets even got there!
I guess it’s time to set up my own digipeater ¯\_(ツ)_/¯