Figure 7. Vgnss_Ant Vs. Adc Readings Relationship; Table 25. Vgnss_Ant Current Draw - Sierra Wireless AirPrime AR7558 Hardware Integration Manual

Hardware Integration Guide
The following table identifies some key VGNSS_ANT current draw values and the associated ADC
values.
Table 25. VGNSS_ANT Current Draw
I (mA)
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
The graph below illustrates the relationship between current drawn on VGNSS_ANT vs the ADC
readings used to monitor the GNSS Antenna status.
Figure 7. VGNSS_ANT vs. ADC Readings Relationship
4116922
Nominal
337
612
936
1242
1558
1877
2194
2494
2821
3188
3444
3747
4065
4292
4319
Rev 1.1
GNSS Specification
January 21, 2015 26