I have found that using a radio jammer prevents mozzie bites here in sunny Murrumbateman.
The bludgers around here are so big that, when I don't have the radio jammer on, you can here them asking the control tower for permission to land.
I saw my cattle dog 'flying' across the backyard once and realised that a mozzie had him. I had to bludgeon the mozzie with a baseball bat before it would let him go.
With the radio jammer on they can't get the required permission to land and they go elsewhere.
