I am an FCC licensed amateur radio operator. My call sign is W9MHZ. I mainly operate on the 2 meter, 70 centimeter, 1.25 meter, 40 meter and 17 meter bands. My most distant contact was with an operator with the call sign PJ2/PA1CC in the former Netherlands Antilles (Curacao Island), near Santa Martha Bay, using the 17 meter band, single sideband, October 31st, 2016. That's a distance of 2325 miles, with the same power that lights up a household lightbulb (around 70 watts). Amateur radio operators are required to keep a detailed log of all the contacts that they make on the air. They then can, if they wish, compare each others logs using a central online database (or post cards via the mail if you want to go old school) to verify that the contacts actually occured. A contact is only official if both stations have it in their respective logs.
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My equipment includes: