Welcome to the home page of Ham Radio Station OP4K    



Primary call ON4JZ
Other callsigns used OO4JZ - OQ4JZ - OR4JZ - OS4JZ - OT4JZ and OT5A (contest team Lier M/M) 

Ex callsigns ON1BZJ - ON4AJZ

January 2021	February 2021	March 2021
April 2021	May 2021	June 2021
July 2020	August 2020	September 2020
October 2020	November 2020	December 2020

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