Helsinki Sector J is the northernmost of the Helsinki ACC sectors, covering Helsinki FIR north of Oulu. It operates on 126.1 MHz.


Sector J is usually very quiet, and therefore often combined with Sector L (EFIN_JL_CTR). During the winter season, however, when traffic levels to Rovaniemi, Ivalo and Kemi tend to increas, workload can require Sector J to be operated on its own.

The main tasks of Sector J are:

  • Departures and arrivals from/to Rovaniemi, Kemi, Kittil√§ and Ivalo
  • Overflying traffic east/west
  • New squawk assignments for traffic from Russia
  • Traffic information below FL95
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