GPS INTERFERENCE EXER CENTRE 442206N 754926W  
(APRX 15 NM E CGN4 AND 35 NM E CYGK)

RADIUS 235 NM FL400 TO UNL.

RADIUS 175 NM FL250 TO UNL.

RADIUS 95 NM 10000 MSL TO UNL.

RADIUS 75 NM 4000 AGL TO UNL.

RADIUS 12 NM 200 AGL TO UNL.

RADIUS 10 NM SFC TO UNL.

GNSS SIGNAL MAY BE PERIODICALLY INTERRUPTED. 

INFORM ATC OF ANY ADVERSE IMPACT.