GPS, Glonass, BeiDou, Galileo, SBAS and L-Band Antenna GPS, Glonass, BeiDou, Galileo, SBAS, L-Band and Beacon Antenna GNSS Sensor GNSS Sensor GNSS Reception: GNSS Frequency: LNA Gain: LNA Noise: GPS L1, GLONASS G1, BeiDou B1, Galileo E1, SBAS, and L-band 1.525 to 1.614 GHz 30 dB 2.0 dB, typical Dimensions: Weight: Mount: RF Connector: Aluminum base with ASA plastic top 7.0 H x 13.0 D (cm) 2.9 H x 5.1 D (in) .38 kg (.84 lbs) 5/8 inch female thread TNC (straight) Environmental Storage Temperature: Operating Temperature: Enclosure Rating: Shock and Vibration: Beacon Frequency: Beacon LNA Gain: Power Input Mechanical Enclosure: L-Band Frequency: L-Band LNA Gain: Beacon Sensor Power Input Input Voltage: Input Current: GNSS Frequency: LNA Gain: LNA Noise: GPS L1, GLONASS G1, BeiDou B1, Galileo E1, SBAS, L-band, and Beacon 1.525 to 1.614 GHz 30 dB < 2.0 dB L-Band Sensor L-Band Sensor L-Band Frequency: L-Band LNA Gain: GNSS Reception: The A21™ antenna is designed to help maintain tracking of GPS, GLONASS, BeiDou, Galileo, and differential correction signals in challenging environments. Sometimes keeping the antenna level and away from electrical noise is just not possible. With a metal base, lower profile, improved multi-path mitigation, and ability to filter out an additional 30 decibels of radio band frequencies, A21 offers superior noise rejection. The A21 is designed for use with Hemisphere GNSS Crescent® and Crescent Vector™ II receivers. Input Voltage: Input Current: Mechanical Enclosure: Dimensions: Weight: Mount: RF Connector: Lexan 10.4 H x 14.5 D (cm) 4.1 H x 5.7 D (in) .73 kg (1.62 lbs) 1” coarse thread (5/8” adapter available) TNC Environmental Storage Temperature: Operating Temperature: Enclosure Rating: Shock and Vibration: The A31™ antenna is designed to help maintain tracking of GPS, GLONASS, BeiDou, Galileo, Beacon, and differential correction signals in challenging environments. Sometimes keeping the antenna level and away from electrical noise is just not possible. With improved multi-path mitigation and ability to filter out an additional 30 decibels of radio band frequencies, A31 offers superior noise rejection. The A31 is designed for use with Hemisphere GNSS Crescent and Crescent Vector II receivers.