| B104 antenna is designed to receive signals of GLONASS / GPS in the frequency range from 1570 to 1606 MHz and application for mobile objects (cars) in harsh environments, with high levels of interference. |
B104 antenna
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Design features
Antenna is resistent to strong out of band interference (allowable noise levels, depending on the frequency of the interference from -80 dBW to -4.5 dBW see tables - Thresholds interference in the form of harmonic oscillations at the inlet LNA on signals GPS / GLONASS).
Also antenna is resistant to the powerful in-band interference (allowable noise levels up to 1 W).
Emitter antenna is made of ceramic.
Antenna housing is made of aluminum alloy, radome - made of impact resistant plastic, cast.
The antenna mount is magnetic and (or) screws.
Frequency responce
Specifications and operating conditions
| Parameter |
Value |
| Frequency range, MHz |
from 1570 to 1606 |
| Output impedance, Ohm |
50 |
| Output VSWR, no more |
2 |
| Polarization |
circular, right |
| The gain of the emitter at the zenith, dBik |
4 |
| The gain of LNA, dB |
30±2 |
| The noise of LNA no more, dB |
3,2 |
| The frequency selectivity of the filter f0 ± 50 MHz no less, dB |
40 |
| Supply, V |
from 2,9 to 5,0 |
| Current no more, mA |
15 |
Dimension, mm:
- diameter
- height |
63
21 |
| Mass no more, kg |
0,12 |
| Protection |
IP 65 |
| Operation temperature, °C |
from -40 to +70 |
| Storage temperature, °C |
from -50 to +70 |
| Humidity at 25 °C, % |
100
|
| Connector |
Plug TNC |
Variants antenna
| Variants |
Gain1)(type), dB |
Cable |
| length, м |
Type |
| 00 |
26 |
5 |
RG-174 |
| 01 |
27 |
5 |
RG-316 |
| 1) Taking into account the gain the emitter the antenna and cable attenuation |
Thresholds interference in the form of harmonic oscillations at the inlet LNA at GPS
| Frequency range, MHz |
Thresholds interference, dBW |
| F < 1315 |
-4,5 |
| 1315 < F < 1525 |
from -4,5 to -42,0* |
| 1525,00 < F < 1565,42 |
from -42,0 to -150,5* |
| 1565,42 < F < 1585,42 |
-150,5 |
| 1610 < F <1618 |
from -75 to -72* |
| 1618 < F < 1635 |
from -72 to -52* |
| 1635 < F < 2000 |
from -52,0 to -8,5* |
| F > 2000 |
-8,5 |
| * Value of a linear change |
Thresholds interference in the form of harmonic oscillations at the inlet LNA at GLONASS
| Frequency range, MHz |
Thresholds interference, dBW |
| F < 1315 |
-4,5 |
| 1315 < F < 1525 |
from -4,5 to -42,0* |
| 1525,00000 < F < 1562,15625 |
from -42 to -75* |
| 1562,15625 < F < 1583,65625 |
from -75 to -80* |
| 1583,65625 < F < 1592,95250 |
from -80 to -149* |
| 1592,9525 < F < 1609,3600 |
-149 |
| 1609,36000 < F < 1613,65625 |
from -149 to -80* |
| 1613,65625 < F < 1635,15625 |
from -80 to -52* |
| 1635,15625 < F < 2000,00000 |
from -52,0 to -8,5* |
| F> 2000 |
-8,5 |
| * Value of a linear change |
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