OTAFAN covered it pretty well. Try an unused frequency at the high end and low end to listen for electrical interference noise. Electrical interference on the AM band can be strong enough to affect TV reception. The loop antenna in the portable radio can act as a direction finder. In addition to CFLs, LED lamps can also create noise interference.
Good luck hunting for the reason your Signal Quality (SNR) is so bad.
Last edited by rabbit73; 7-Feb-2018 at 10:46 PM.
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