I have been using the QuanSheng UVk6 handheld radio for a long time. Recently, I bought a Hua Hong 1.2-meter glass steel antenna and installed it on the roof. I connected the feed line to the K6 handheld radio. When listening to two frequencies separated by 740 kHz, one frequency always interferes with the other. However, when using the original factory-supplied adhesive antenna, this does not happen. How should I resolve this issue?
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