I have a problem which I don’t believe there is a solution to. Is there any way to block a 91.3 FM signal which is coming 45 miles from the South and pick up a 91.3 FM signal coming 120 miles from the North?
I have about 150′ of RG6 cable coming from a Radio Shack FM antenna on the North side of a hill 30′ in the air. I have a Radio Shack DC block at the antenna and at our Bose radio there is a 110v Radio Shack booster. The 150′ RG6 comes into the attic which is connected via adapter to a heavy duty 300 ohm 30′ flat cable running to the radio. I have not tried replacing the 30′ of 300 ohm cable in the attic with RG6 yet.
For the past couple of years this has been acceptable even thought the 91.3 from the South would drown out the 91.3 from the North every so often. About three weeks ago the North signal went away after some bad weather and all we could pick up was the South signal. I thought possibly I had a bad connection due to weather. All connections were in excellent condition. Every so often the North signal comes in, but is always over powered by the South signal.
I did contact the radio station to the North and inquire as to if any changes in their signal strength had happened. The engineer I spoke with was very surprised that I could pick up his signal 120 miles from the station. He also said that normally the signal was good for 60 miles max. If there was some way I could block the South signal I probably could pick up the North signal.
Any suggestions you have will be greatly appreciated.
Good question about an interesting situation. The only 2 things that come to mind are that the 2 signals are probably not EXACTLY 180 degrees apart so you may try to fine tune the direction the antenna is pointing. Is it possible the antenna turned slightly in the storm? There may be a directional “sweet spot” where the station to the North comes in best and/or the station to the South is nulled. You may try a more directional antenna and try to point it better. One with more elements is going to have a less beamwidth. I’m not big on throwing money at a problem though unless you know it is going to resolve it and I don’t know that a longer antenna is going to help. I like the Radio Shack antenna very, very much but in your case a longer antenna with narrower bandwidth may be the way to go. You didn’t mention if you have a rotor but it may be a way to easily fine tune the direction your antenna points. You can get decent rotors that will handle the Radio Shack FM6 (now Antennacraft) for not a lot of money.
Don’t overlook simple stuff like making sure the transformer on the antenna where the coax connects is still in good shape and has a solid connection. If there was a problem there, it could possibly change the way the yagi works.
120 miles is a pretty good pull against a station 45 miles away so best of luck with it.