A new innovative product from Alex Greve (IBCrazy). This notch filter allows you to fly 2.4GHz control with 1.3GHz video. Place it on your video transmitter to greatly increase the range of your 2.4GHz control system. 

Can be coiled up and zip tied to make mounting antenna easier. Picture may vary depending on frequency or version. 

Specifications:

Pass Band 1000-1600MHz
Reject Band 2380-2520MHz
Typical Insertion Loss 0.1db