Sorry folks I missed the "geocaching" in the initial question. I have never tried my hand at that sport but I do have an ancient handheld. As a pilot, I started using GPS long before it caught on for the general public. I was using a handheld to feed GPS signal to a laptop before they invented stand alone car GPS devices. In fact, I was using it to custom map data for oilfield in my work truck/mobile office that the guys working for me dubbed "THE STARSHIP" lol. But then I date back to a day when we used key punch cards to program computers and I worked in industrial electronics before the oilfield.....
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