I have a midland lxt326 im its supposed to work for 20 miles

The number of miles stated on the package pertain to the approximate distance you can contact somebody IF you were in an open field.

Keep in mind these radio signals travel by air, and if we have trees, houses, and tall buildings around us, the signals will meet interference and bounce around before reaching their destination.

In an urban area, the most you'll get is about 1 mile. I have the exact same radios as you, the LXT 326 model with black and blue on it, and I can use it to talk to family with a radius of about three blocks in every direction from my house. After that, the messages have a lot of static and are no longer understandable.