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There are three key items that must be specified to get the correct GSM SIM card and service
from your cellular service provider;
1.
GSM SIM card (not UMTS)
2.
Data service only
3.
No IMEI number (i.e. no associated hardware/handset)
In the USA, AT&T and T-Mobile provide GSM SIM cards that have been used successfully with
the Altus APS3G.
How do I configure my external radio as a repeater?
In order to correctly configure a radio network with a repeater, all radios must have matching
settings. Ensure the same frequency, radio protocol, channel spacing, FEC, and scrambling
options are found on all radios.
What is NMEA Output?
NMEA (National Marine Electronics Association) output is a standard format of digital data
exchange. It provides the position, time, Latitude, Longitude, fix quality, number of satellites
being tracked, as well as other pertinent data integral to GPS technology.
How Do I setup the Altus APS3G to output a NMEA message?
The command for NMEA output may be issued via line command using data collection software
(SurvCE & FieldGenius) or manually. The easy method is to send a command to the receiver
after you have completed configuration. For example, the command to send out a GGA string
once per second is:
SNO,STREAM9,COM3,GGA,SEC1
To send more than one NMEA strings, use the + variable. For example to add ZDA, the
command is:
SNO,STREAM9,COM3,GGA+ZDA,SEC1
What is the difference between GSM vs CDMA?
GSM “Global System for Mobile communications” is an international standard and uses a SIM
(Subscriber Identity Module) card. It is best suited for international roaming. The advantage of
a SIM card is that it may be placed in any device the user would like at any time.
CDMA “Code Division Multiple Access” is a signal that is better suited for voice as studies have
shown. These devices do not use a SIM card and thereby make switching devices much more
difficult and time-consuming. The European Union mandated the sole use of GSM technology,
making CDMA not practical in that area. CDMA is much more complicated than that of a
“simple” GSM system; as a result, the batteries in CDMA devices deplete at a higher rate than
GSM devices.
How do I update my data collector to the latest Software version?
Locate the most recent data collection software in the Support section of the Septentrio
website. These versions have been tested and approved by Septentrio. Connect the data
collector to a PC (via Serial or USB connection). Run the latest data collection executable and
perform the tasks as directed on the screen.
Does the Altus APS3G antenna vertical offset (from antenna calibrations) need to be
added to the measured height to the bolt?
No. Data collection software (SurvCE or FieldGenius) adds the vertical offset automatically when
the appropriate antenna type is selected.
How do I know which battery I can remove without having operations interrupted?
