This is the best glass mount dual band 144/440 MHz antenna in ham radio!
It's easy to install on glass windows or other non-conductive surfaces.

A small 6 inch counterpoise mounted inside your vehicle lowers SWR and makes tuning easy. Tuning for minimum SWR is conveniently done inside your vehicle lowers SWR and makes tuning easy. Tuning for minimum SWR is conveniently done inside
your vehicle. Tuning tool included.

It's perfect for your dual band mobile or HT.
You'll get excellent gain on 440 MHz and 2 Meters. Low SWR lets you transceiver deliver full power safely.

MFJ's exclusive 26 inch stainless steel SlimLineRadiator minimizes wind vibration for less SWR flutter -- gives you longer range and better readability.

Handles 50 Watts. Includes 12 feet of coax, cleaning pad and all mounting hardware.