If you're doing a project with a ham radio and want to mess around with the antenna, this video should help.
In this tutorial, you'll find out how to use an inexpensive antenna coax switch. This can be used for 2 antennas to 1 radio or 2 radios for one antenna. This video is for antennas that use S0-239 connectors. So good luck, pay attention, and enjoy!
Oh... and if you're working from home these days, be sure to check out Gadget Hacks' Working-From-Home Essentials.