Sunday, 14 June 2015

ANTENNEN GUIDE CLOVERLEAF, PATCHANTEN...



ANTENNEN GUIDE CLOVERLEAF, PATCHANTEN...


Today we get an overview of the individual antenna types and how they work.There are basically the following types, rod antennas, patch antennas, Cloverleafantennen and helix antennas or directional antennas!
Rundstabantennen & Patchantennen


Both types of antennas are linearly polarized (LP), that the radio waves are oriented in a particular plane. Thus, the reception is only optimal when the antenna are in a plane on the ground and the quadricopter. Tilts the Copter to the right or left, the position of the antenna on the copter and the receiver changes is disturbed or is no longer perfect (it occur Krischel on). Therefore, round rod and patch antennas for FPV flight are less suitable!
       
Cloverleafantennen
Cloverleaf- and Skew Planar Wheel-are circularly polarized (CP) and therefore much better suited for FPV flight. The advantage is that the location and Aurich Tung transmitter and receiver antenna is not so critical. The copter can tilt so and the reception is not disturbed. One drawback, however, is when the copter flies right above one, then the reception is disturbed because the antennas send circular and in the middle of the circle there is a (radio) hole. So you should always fly in front of you and not necessarily just about you.  
Helixantennen

Helix antennas are directional antennas (CP) are circularly polarized. As the name suggests, is to be strongly bundled signal and emitted in the direction that shows the antenna. Advantage is clearly the receiver, by bundling in a Schmallen signal angle the range is greatly increased. Disadvantage is that the antenna at the Copter and on the ground must always be aligned with each other. Shows the antenna on the ground in a different direction, you will receive a picture. Therefore, the use of antenna trackers, which ensure that the two antennas are always aligned itself recommends.
 
Helix antenna and antenna combination Cloverleaf

May also be used when using a diversity channel, a helix and Cloverleaf- antenna. Thus, you always have the best reception by each better for Copter standing antenna is used. In conjunction with an antenna Tracker as the largest and safest ranges are possible.

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