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3.4 Directions for External Antennas
3.4.1 Directional Antenna YA9-11
This Yagi type antenna is a directional antenna with a main horizontal distribution at +/- 30 °
of the direction it is pointed to. It is best used, if the ALPHA is placed outside the installation
area of loggers that should be covered.
Mounting clamp fits poles up to 50 mm. Always use both clamps and securely
tighten the screws.
The little staves should be oriented vertically for correct polarisation.
Sample installation with solar panel and Yagi