Diamond NR22L is a very high gain 2 meter, mobile antenna. This is a tall antenna...a full 96.9 inches (2.46m) with a center load. This 2 5/8 + 1/4 wave length design provides a big 6.2 dB gain. It can handle up to 100 watts of power. It has a well made (Cant remember the make, I want to say its a Comet) 3" mag mount, with 15' of RG58/U on it. I used this on a filing cabinet in my office, so it never has been outside and is like new. I do not know for sure whether a 3" mag mount would be enough for actual mobile use though. $60 shipped CONUS.