Terk Indoor AM Antenna ADVANTAGE Channel reception will vary depending on what's being broadcast in your area, signal strength, how far away you are from broadcast towers, as well as your surroundings (i.e. obstructions between your home and the towers). 6 Ft connection cable - Pin-Dot Pre-Tuning Omni-directional reception pattern, 300ohms output impedance 75 Ohm transformer 9.5w x 9.5h x 2.5 Diameter