For the work within the frequency range 3,4-3,6 GHz we suggest to use our new collinear vertical antennas A-8X and A-11X. These antennas possess an increased gain (8 and 11 dBi), an ideally circular radiation pattern, small electrical tilt of the beam in a vertical plane. These antennas are mounted by means of the wall bracket and by a worm buckle at the pipe-mast.
A-8X E-plane pattern

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A-11X E-plane pattern

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