Thunderstorms and external aerial

[palnecrazyuk]

Thunderstorms and external aerial query, I have an external aerial which is or was fantastic, then last Sunday we had a massive thunderstorm and my range dropped from at best 150 miles to about 60 miles now we are having another storm and my range after being poor all week has just returned, can any one explain what's happenig

[AirNav Support]

Take a look at:
http://www.airnavsystems.com/forum/index.php?topic=2759.0