Master Lock's new line of Bluetooth padlocks adds app control where you wouldn't expect it. We're impressed by the 4400D Indoor Bluetooth Padlock, and the bigger, pricier 4401DLH Outdoor Bluetooth ...

Finally, a violet antenna setup, a large directional antenna with preamplifier, will tune the final station, KFTY in Middleton, California. KFTY is 97 miles away from you.

The red code is a medium-sized, directional outdoor antenna. This could add another six stations, bringing the total up to 28. The next step up is blue, ...