I’ve been doing more testing with this. I’m quite certain the Pokemon Radar doesn’t work. Thinking about it, as an IT guy, if I were implementing the Pokemon Go game and it was vastly oversubscribed and struggling, turning off the GIS radius search (Pokemon Radar) feature would save a lot of CPU on the servers and be a good option to increase logon performance.
I imagine it will be a number of months before The Pokemon Company decides whether it’s worth investing in the hardware to implement the Pokemon radar search feature. They’ll be wanting to ensure that the peak usage isn’t just a fad that’ll fade away.