ALTUS APS-3 - GSM Modem

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3.2. GSM Modem
Specification
 Quad Band GSM/GPRS Class 10 Radio Device for true
Global usage
 GSM 850/900MHz power class 4 (33dBm)
 GSM 1800/1900MHz power class 1 (30dBm)
3.2.1. Communication Protocol
 NTRIP
 TCP/IP
 UDP/IP
 Direct Dial
What you need to know
What’s my country operating
frequency?
900/1800MHz within North America (USA,
Canada)
850/1900MHz International (Europe, Asia,
Latin America)
GSM Modem
Make sure that SIM Card is activated for a data
plan
Will the GSM work with any cellular
provider?
Only cellular providers with GSM/GPRS
capability
Do I need to unlock my GSM modem?
No
Unable to connect to RTK Network
Verify IP / Port / Username / Password