Catalogue › Interference-resistant GNSS antennas › Gamma-100 and TETRA: separate radio communication from GNSS reception
Gamma-100 and TETRA: separate radio communication from GNSS reception

A practical look at the NavCom Gamma-100 interference-resistant GNSS antenna and its integration requirements.
The application
A working radio network and satellite navigation reception perform different jobs. Gamma-100 does not replace a TETRA radio antenna and does not determine group radio coverage. Separate the voice radio path, power arrangements and the equipment that needs to receive GNSS signals.
Agree these details before ordering
Gamma-100 has four antenna elements and a stated limit of three simultaneous interference sources. It uses 24 V with a maximum consumption of 8 W. Compatibility with a particular terminal or dispatch system needs confirmation of the required protocol; an RS-232 or Wi-Fi interface name alone does not establish it.
Reading the specifications
The model specifies 4 antenna elements, up to 3 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
- 4
- Simultaneously suppressed interference sources
- 3 maximum
- Interference resistance
- 110 dB with 1 interference source; 95 dB with 3 interference sources
- Supply voltage
- 24 V
- Power consumption
- 8 W maximum
- Operating temperature
- −40…+85 °C
- Storage temperature
- −55…+85 °C
- Mass
- 2.0 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.