I built a dipole antenna with a balun and copper wire. My reception on air band is 100 percent better. I just have the antenna hanging in the corner of my room. I want to put an antenna in the attic. Is there a better option for an antenna if I go through the trouble of running coax through the wall. I listen to air band and 800 mhz however I am so close to the repeaters I am focusing more on air band ....would anything work better than my home brew?