I need some help. I am trying to listen to an agency that uses the EDACS system. Radioshack scanners haven't worked, so i bought an ericsson radio from the agency itself and still can't pick them up. I am 56 miles from the agency and have an 800mghz antannae about 50 feet up in the air, but it is not pointed directly at the agency. Am i just too far away to receive them or do i need to direct the antannae at the agency.