Ham Radio Antenna On Metal Roof
The total length of the wire is 88 feet.
Ham radio antenna on metal roof. It runs up the front of the roof on the left as you face the house then runs across the roof along the ridge vent plastic construction then down the back of the roof to the eaves at an angle. It would likely make a lousy antenna. The metal roof acts as a shield so rf exposure is a non issue. Long wire antennas look at the long wire antenna on the roof.
I am concerned about the impact a metal roof will ham radio antennas and metal roofs 11 30 2004 within the reception discussion of the residential metal roofing forum. A 5 6 tripod with cement block weighted legs and a 10 pole in the center of the roof would work since the bottom of the antenna only needs a few feet of clearance. But the benefit of this larger roof mounted antenna is that now we can leave the radio on all the time and listen to it inside which leads to more opportunistic connections and overall more time spent enjoying. For mounting i d leave the 18 pole alone.
For the antenna to be really in the clear two wavelengths is a good rule of thumb. You can use the metal parts of your structure as part of the antenna if that makes things easier. On using a metal roof as an antenna the joints between panels are likely not soldered and are likely to form corroded diode junctions that generate rfi. As an ultra beginner without a lot of investment in the hobby it was perfectly acceptable to have to climb onto the roof to get any signal on my portable radio s antenna.