GPS INTERFERENCE EXER CENTRE 440855N 753155W 
(APRX 50 NM ESE CYGK)

RADIUS 280 NM FL400 TO UNL

RADIUS 238 NM FL250 TO UNL

RADIUS 170 NM 10000 FT MSL TO UNL

RADIUS 137 NM 4000  FT AGL TO UNL

RADIUS 85  NM SFC TO UNL

GNSS SIGNAL MAY BE PERIODICALLY INTERRUPTED.

INFORM ATC OF ANY ADVERSE IMPACT.