Podle mě jde čistě o americkou záležitost. Viz výňatek z manuálu rádia:
...¨
About NOAA/NWS
The National Oceanic Atmospheric Administration and the National
Weather Service operates a system of weather and hazard alert
broadcasts covering most of the
United States. Typical broadcasts
are within reception distance of 25-50 miles of the weather
station. Fully extend the telescopic antenna and rotate until
reception is clear. The ER310 can receive broadcasts up to 50
miles from the weather station depending on your location and
conditions of weather, terrain, etc. If reception is not good, try a
different location to find a spot of improved reception. If indoors,
placement near a window usually improves reception. If a weather
broadcast cannot be heard on any of the 7 channels, contact your
local NOAA/NWS office and verify the closest station is on air.
Their web site is
http://www.nws.noaa.gov/nwr/.
...
To rádio má sedm těch NOAA/NWS kanálů:
Ch.# Frequency
1 162.400 MHz
2 162.425 MHz
3 162.450 MHz
4 162.475 MHz
5 162.500 MHz
6 162.525 MHz
7 162.550 MHz
Nicméně mimo USA je to k prdu... Viz i na těch stránkách NOAA (odkaz je na konci odstavce té citace) pokrytí systému NOAA:
Dále i viz web NWR:
https://www.weather.gov/nwr/station_listing
