HE920 Family Product Description
80404ST10112A Rev.2 2013-05-06
Reproduction forbidden without written authorization from Telit Communications S.p.A. - All Rights Reserved.
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3.7.
Antenna(s)
3.7.1.
Frequency band of GSM/WCDMA antenna
The antenna that the customer chooses should fulfill the following requirements:
Frequency range
Depending by frequency band(s) provided by the network operator,
the customer shall use the most suitable antenna for that/those band(s)
Bandwidth
70MHz in GSM/WCDMA 850MHz band, 80MHz in GSM/WCDMA
900MHz band, 170MHz in DCS1800, 140MHz in GSM/WCDMA
1900MHz band, 250MHz in WCDMA 2100MHz band and 445MHz
in WCDMA AWS band.
For further information, please refer to the HE920 family Hardware User Guide.
3.7.2.
Frequency band of GPS antenna
The GPS antenna should be an active antenna which is fulfilled the following requirements.
Frequency range
GNSS(GPS L1 & GLONASS) : 1565 MHz ~ 1606 MHz
GPS L1 : 1575.42MHz
GLONASS : 1597.55 – 1605.89MHz
Bandwidth
GPS L1 : +/- 1.023MHz
GLONASS : 8.34MHz
3.8.
Supply voltage
The external power supply must be connected to VBATT signal and must fulfill the following
requirements:
Nominal Supply Voltage
3.8V
Operating Voltage Range
3.4 ~ 4.2V
CAUTION:
The operating voltage should not be exceeded; Special care must be taken in order to fulfill
min/max supply voltage requirement.
3.9.
Power consumption
The current consumption of HE920 family is:
