I don't know if the entire FM band was completely blank but going south on the coastal Highway 1 once you get a ways past Monterey and the mountains start getting tall, there was a stretch where I couldn't find anything at all when I searched a good portion of the dial.
Pretty much no FM reception at Neah Bay WA
-crainbebo
How about in Goldfield, NV?
Where the Goldfield Hotel is
Back as recently as the 1970s and even into the 1980s, there were areas of Michigan where only a handful of Class C or Class A local stations were available. The Class Cs were not even at the full later Class C1 facility level. They were great for DXing. Class B-C stations up to 250 miles away, and Class A stations 150 miles away were heard on a nearly regular basis. They would fade in and out, but they were there. The reason you could get Class As that far is that they were on Class A Channels, and no stations were overpowering them. You needed to have a good portable like a Sony in those days, or an outdoor directional antenna on a rotator for best results.
Adak, Alaska is reportedly devoid of audible FM stations. I don't think dominant atmospheric conditions that far north allow for any real tropospheric ducting or E skip activity either. There may be some distant catches on AM and shortwave at night though. Besides that, there's millions of "locales" if you will in very remote areas of Canada distanced from sizable towns, although the tsunami of AM to FM station conversions in places where the space on the spectrum exists has somewhat but far from entirely changed this.
http://radio-locator.com/cgi-bin/lo...b=Y&format=&dx=1&radius=&freq=&sort=freq&sid=
That there is another surreal and terrifying experience in the making!
With Japan being in the 1900-3000 mile range from Adak, it should be easy on a portable to hear the big guns (774, 828, 747, 594, 693). Other very possible areas include South Korea (2800-3000mi), eastern China (2800-3900 miles) and Taiwan (3700-3800 mi).
Hawaii is also very possible at 2300-2500 miles. I know a DXer in Anchorage who has gotten several Hawaiians including the new 1240-KEWE Kahului running 5KW. (NOPE! I didn't mean 1KW - it is 5000 watts on a graveyard! I suppose with no graveyarders for 2500 miles, they can do whatever they want there.)
Anchorage is about 1175 miles to the NE of Adak.
How about the California stations on AM
Like KCBS 740 - San Francisco
I once knew a guy who worked in Chignik, AK for a year or so (Chignik is on the Alaska Peninsula, eight or nine hundred miles to the East of Adak). He had a DX-160 and a lengthy wire and heard Australia and Japan easily. So I'm sure the AM band comes alive at Adak at night, if you have a decent AM radio.
I suppose with no graveyarders for 2500 miles, they can do whatever they want there.)
A.
When the channels are empty, graveyarders can be heard at great distance.
All the graveyard channels were empty for several thousand miles from Quito in the late 60's and I logged US Class IV stations from as far away as Montana as well as plenty from the Gulf states.