This is a reduced-size version of the map: the full-size version can be found here.
Do you know where your nearest PEP radio station is? PEP (Primary Entry Point) radio stations are battle-hardened commercial radio stations, usually in the medium wave (AM) band, that serve as initial entry points for national Emergency Alert System traffic. In a widespread disaster situation they could be vital information sources if local infrastructure is down. PEPs are not well known though - to the extent that there are very few places you can find a list of them. I'm therefore hugely grateful to Al Kenyon from FEMA's IPAWS for providing the above map, which not only gives current information on the location of the PEP stations by station callsign, but also rings that give approximate ranges for the transmitters. Stations are color coded according to the extent they have been updated. Blue indicates legacy PEPs with FEMA generators and fuel systems. Yellow indicates no FEMA generator or fuel system as-yet. Red indicates sites that are completely modernized with HEMP (High-altitude Electromagnetic Pulse) protection. To get the frequency for the station nearest you, simply look it up on the FCC search site. The image is large and high resolution, so the best way to look at it is to download it. This version replaces a prior, incomplete map that I had prepared based on data I found online. Note that there are PEP stations outside the continental U.S., for example WVUV-FM in Pago Pago, American Samoa.