I have a Pro-197 and I am trying to pick up narrow band from the forest service. I have all the frequencies entered, I have the scanner running fm, I am running only 10 ft of rg6 from scanner to discone antenna. I am pretty close to the forest, and I have all the right pl's program. the forest used 3 different pl's so I added the frequency to my scanner 3 times with the different pl's. Nothing any suggestons?