Sort of ... the number I have is more than I can use. So far I have ten GPS systems, five with built-in receivers and five external Bluetooth GPS receivers.

Obvious yatang madaling maligaw?

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I used to have hundreds of what's called as QSL cards ... cards exchanged for confirming radio contacts with people from other places.

Aside from the ordinary ones, there were some from remote Pacific islands, some from (then) Soviet-bloc countries, one from Antarctica, some from ships on the high seas, one from a GI in Somalia, and one from a PAL airliner.

The more memorable ones - from a guy in Germany who used his bed springs as an antenna, and a contact with a Japanese via a Russian satellite. And some went unconfirmed, like one of the space shuttle missions.