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Sorry, no position known for JJ4VBY-A

No position report for JJ4VBY-A has been heard in the last 10 days. There may be a problem with the spelling of the callsign, the station may not be on the air, or in an area without radio coverage. If you are not the owner of the station, you should contact the station operator for help.

You might also try a lookup of JJ4VBY on qrz.com, which gives license information for all US and many foreign radio amateurs.