ORBIT FR GALILEO, GPS, GLONASS Base Station Reference Antennas - Manual (Page 2)

91
>
Positioning
Electrical characteristics
Part number ANTE 011-A
Operational frequency bands B1 Galileo/GPS/GLONASS: 1589.81 ± 24.62 MHz
(GPS L1 C/A, GPS L1 P(Y), GAL L1F, SBAS L1, GLO L1 C/A, GLO L1 P)
B2 Galileo/GPS/GLONASS: 1227.60 ± 61.38 MHz
(GPS L5, GPS L2C, GPS L2 P(Y), GAL E5a, GAL E5b, SBAS L5, GLO L2 C/A, GLO L2 P, GAL E6C)
Option: reduced B1 and/or B2 bands
Polarization* Right hand circularly polarized
Coverage* Maximized within a conical coverage up to 85 degrees from zenith.
Gain antenna (without LNA)* < +7 dBi at zenith
> 0 dBi from 45 to 90 deg. elevation
> -5 dBi from 10 to 45 deg elevation
> -10 dBi from 0 to 10 deg elevation
< -5 dBi at 5 deg elevation
LNA Gain* 35 dB +/- 2 dB
Axial Ratio* < 1 dB from 60 to 90 deg. el.
< 2 dB from 10 to 60 deg. el.
< 4 dB from 5 to 10 deg. el.
Phase center knowledge accuracy* Within 5 mm radius
Phase center stability < 1 mm radius for B1 sub-band
< 0.5 mm radius for B2 sub-band
Group delay variation < 10 ns
Group delay stability* < ± 250 ps at a given frequency point over temperature
Signal to noise density ratio* C/No ≥ 35 dBHz at B2 or B1 reference conditions
LNA 1dB compression point* ≥ -10 dBm
LNA Output 3rd order intercept* ≥ 0 dBm
LNA Burn-out protection (CW)* Antenna system able to withstand with no damage an in-band +20 dBm CW signal
LNA Burn-out protection (In-band Pulse)* Antenna system able to withstand with no damage an in-band pulsed
interference with the following characteristics:
• Pulse peak power: +30 dBm
• Pulse max width: 1ms (max duty cycle of 10%)
(*) Applicable to each of the GALILEO E5, E6, L1 bands, GPS L5, L2, L1 bands and GLONASS L2, L1 bands.
ENVIRONMENTAL TESTING:
• Thermal cycling test performed according to the norm IEC 60068-2-14.
• Sine vibration test performed according to the norm IEC 60068-2-6.
• Random vibration test performed according to the norm IEC 60068-2-64.
• Free fall test performed according to the norm IEC 60068-2-32.