Gamma-150: seven interference sources are not seven radio channels

The application

The number seven in the Gamma-150 specifications refers to the maximum simultaneous interference sources. It is not a number of TETRA users, call groups or voice channels. Evaluate the antenna as part of the GNSS receiving installation, separately from the working radio network.

Agree these details before ordering

Eight antenna elements are accompanied by consumption up to 20 W at 24 V. Installation also needs to account for a mass up to 2.4 kg and an operating range of −40…+70 °C. If coordinates are required in a dispatch application, agree the data format and transmission path separately.

Reading the specifications

The model specifies 8 antenna elements, up to 7 simultaneous interference sources and 24 V power. Read resistance ratings together with the stated source count and agreed application conditions. These figures do not define antenna gain or a guaranteed operating radius.

Package and installation

The stated package comprises the antenna, a stabilized supply, a 10 m antenna cable, a 10 m power/data cable, mounting hardware and documentation. Series dimensions are 280 × 210 × 81 mm maximum. Agree mounting details, mating connectors and the data format for the actual equipment.

Model specifications at a glance

Antenna elements

8

Simultaneously suppressed interference sources

7 maximum

Interference resistance

115 dB with 1 interference source; 95 dB with 7 interference sources

Supply voltage

24 V

Power consumption

20 W maximum

Operating temperature

−40…+70 °C

Storage temperature

−45…+80 °C

Mass

2.4 kg maximum

Questions and answers

Does this equipment suppress UAVs?

No. This description concerns the GNSS receiving path. UAV detection or suppression is not stated.

Does an RS-232 or RS-422 interface establish compatibility?

No. Agree the protocol, line parameters and interfacing equipment. The source does not provide a full list of compatible instruments.