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In Reply to: RE: IF the antenna IS directional and you KNOW where the offending station is - IE posted by Timbo in Oz on April 06, 2008 at 17:49:56
1. I have a directional outdoor YAGI, but directional antenna doesn't help in this case. Both of the two stations came from the same radio tower.
The unwanted station transmits even stronger, than the wanted one.
2. I'm about 5 km of the tower, directly seeing it. The radio tower is on the top of a hill, I'm in the mid of an opposite hill. There are hills left & right, but I'm in linear contact with the tower without any object in our mids. Anyhow, hills may cause reflections, I think.
3. The wanted station has freuency 105.3 MHz, the unwanted one 103.3 MHz. I think 2 Mhz difference is not to close, is it ?
4. Using the same antenna with an old solid state YAMAHA tuner, there is no crosstalk between the two stations.
5. Using an old, tired 6DZ4, there is no crosstalk between the two stations. Using new tube, crosstalk appears.
6. Using a small simple wire within the room, there is no crosstalk between the two stations. But the signal strength is definitely lower, and when I change my position there is a fluctuation in the reception.
7. Using my car radio (with the car's antenna), there is no crosstalk between the two stations.
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I will try to reduce the 5 element YAGI to 3 elements, or to a dipole, maybe it worth to try.
And of course, any suggestions are wellcome.
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