ANTENNAS / Up-Down

Hemi Antenna

AC-204 / AC-504

SVP Broadcast Microwave’s quad-helix omni (AC-204 / AC-504) design brings the advantages of the characteristic quad-helix antenna radiation pattern to mobile ENG uplink/downlink applications.

The AC-204 / AC-504 antennas provide a circularly polarized omnidirectional radiation pattern with peak gain of 4dBi at 30 degrees above the horizon, and then decreasing gain, with no nulls, as the elevation angle increases to the overhead 90 degree direction. The scape of this radiation pattern naturally compensates for the change in path loss as a mobile transmitter moves from the overhead direction out towards the horizon.

The circular polarization improves signal robustness in multipath environments and in motion links. It can be installed in the fuselage of the helicopter or in an actuator arm where it is usually located in the skid of the helicopter.

SPECIFICATIONS

AC-204

Frequency band   2.0 – 2.2 GHz
2.2 – 2.4 GHz
Bandwidth
200 MHz
Gain
4 dBiC
Polarization
RHCP or LHCP
Connector
N female
Size
Ø 95 x 190 mm

AC-504

Frequency band        4.8 – 5.3 GHz
Bandwidth
500 MHz
Gain
4 dBi
Polarization
RHCP or LHCP
Connector
N female
Size
Ø 54 x 122.5 mm

* For other frequency bands, please contact with SVP: info@svpbm.com

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