• RF Antenna adapter use with police scanner radios or car stereo radios inside a building with an external antenna for better reception
• Convert F-56 or F-59 on coax from an outdoor base station police scanner antenna or over-the-air television antenna
• F socket end has 3/8-32 thread Motorola plug end has 1/8" center pin extending out from 3/8" body size
• Cable is about 6" long, with F socket on one end and a Motorola (car radio style) plug on the other end