HFU HF Underground
General Category => General Radio Discussion => Topic started by: East Troy Don on January 24, 2026, 1523 UTC
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Anyone know of a reliable website that can provide medium wave broadcast coverage maps by frequency? For years I used
https://www.nf8m.com/nf8m/us-medium-wave-pattern-references/
but for the past couple weeks it seems to be totally non-functional with this error message:
"Oops! Something went wrong" when i entered the frequency.
Thanks for any help,
Don
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I use radio-locator but find they under estimate range. Type in a frequency, select station - you can then choose daytime or nighttime map. Good luck. (click on "advanced search" to call up frequency query)
https://radio-locator.com
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Thanks, CY!
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Hey All,
I also use Radio Locator.
I just follow the pattern contours outward beyond the daytime fringe line to see if it's bumped my way or not.
At night I do sort of the same thing , but skywave obviously may not "behave" like it's "supposed to " compared to supposed fringe line on the map.
To run down the list of "possibles", I will just search ie "870 AM radio Wiki" and search the list for the "more likely". ie KRLA CA 3 Kw night probably ain't it to me with so many other closer options to my QTH.
de NQC
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I never used that page, but just clicking the link it looks like it's all 404.
I usually use wiki, and figure out the possibilities that way. And Radio-Locator is a valuable tool as well. Although, as others here have said, the patterns are just a general guide.