Yagi Antenna

For receiving low frequency wavelength. (low quantity of data, long range) 

Can not transmit video on theses signals but for sensors data it works fine.

The more metal rods you add to your yagi antenna, the more narrow the signal beam. (Receive better but have to aim more precisely at the CanSat during the fall) If the sky is covered on the launch day, it could get quite difficult to aim for the CanSat, that why you have to find a good compromise with the number of rows(or turns with an helical antenna).

Helical Antenna

-Perfect directional antenna for 5,8Ghz video system on a long range

-follow this tutorial to build them 

-This is a good free customizable model to 3D print the supports for your antenna : Thingiverse

-here is the list of components that you need to build 2 helix antennas:…