Vaisala GA31, Руководство пользователя, Страница: 15 / 23

Chapter 5 ___________________________________________________________ Specifications
CHAPTER 5
SPECIFICATIONS
This chapter yields the technical specifications for the GPS antenna.
General Specifications
Table 1 General Specifications
Feature Specification
Operating temperature
-40
°
C to +85
°
C
Storage temperature
-55
°
C to +100
°
C
LNA power
+5V DC (
±
10%)
Power consumption 22 mA (nominal)
Frequency 1575 MHz
Output impedance
50
Ω
VSWR 2:1
Gain
35 dB (nominal)
Noise figure 2.7 dB (nominal)
Pass-band width 50 MHz
Azimuth coverage
360
°
(omni-directional)
Elevation coverage
0
°
to 90
°
elevation (hemispherical)
VAISALA _______________________________________________________________________ 13