The VeraChoke choke ring antenna, powered by Tallysman, has consistent performance (gain, axial ratio, PCV, and PCO) across the full bandwidth. It provides the lowest axial ratios (horizon to horizon, over all azimuths) across all GNSS frequencies (<0.5dB at zenith, <3 dB typ. at horizon). It has an exceptional front to back ratio, high efficiency (>80%), a tight PCV, and near constant PCO for all azimuth and elevation angles, over all in-band frequencies.
BENEFITS
* Consistent performance across all frequencies
* Extreme precision
* Excellent multipath rejection
* IP67, REACH, RoHS compliant
KEY FEATURES
* Low axial ratios from horizon to horizon
* Very Tight Phase Center Variation (<1 mm / 0.03 in)
* Low current (45mA)
* Invariant performance from: +2.7 to 24 VDC
* IGS calibration for NONE, SCIS and SCIT
* Compatible with tall and short SCIGN radomes
FEATURES GNSS frequencies L-Band (MSS) GPS L1, L2, L5 GLONASS L1, L2, L3 Galileo E1, E5a, E5b, E6 BeiDou B1, B2, B3 SBAS L1, L5 IRNSS L5 QZSS L1, L2, L5, L6
Polarisation RHCP Axial ratio < 0.5 db at zenith Radiation coverage (dBic) L1 L2 Zenith 6.7 5.8 15° elevation -3.5 -1.7 10° elevation -4.3 -2.6 5° elevation -5.5 -3.5 Horizon -6.6 -4.4 Amplifier Noise figure 2.0 dB typ. lower band Input voltage +2.7 to +24 VDC nominal Current <45 mA (50 dB gain) Impedance 50 Ω VSWR <1.5:1 max. Gain variation with temp 3dB max over operational temperature range P1dB output +12 dBm Out of band rejection 900 MHz 50 dB 1400 MHz 35 dB 1000 MHz 40 dB 1500 MHz 56 dB 1100 MHz 25 dB 1360 MHz 30 dB 1700 MHz 0 dB Group delay variation <10 ns for each band Antenna Antenna gain 7.5 dBic to 8.5 dBic (all frequencies) Efficiency >70% Phase centre variation <1mm/0.03 in Phase centre offset (RMS) ± 0.2 mm / 0.008 in IGS reference SEPVC6150L Mechanicals & Environmental Antenna Reference Plane (ARP) Bottom of 5/8” thread North orientation Indicator Mark on choke aligned with connector Operating temperature range -55° C to +85° C -40° F to +185° F Weight 4 Kg / 8.8 lb (no radome) Mounting thread 5/8” x 11 TPI female Connector N-type female Certification IP67, RoHS, REACH, WEEE, CE, ISO 9001-2015 Shock vertical axis: 50 G other axes: 30 G ESD Circuit Protection 15 kV air discharge |
DIMENSIONS