Robustel M1000 User Guide Manual de usuario descargar pdf (Pagina 45)

Robustel GoRugged M1000 User Guide

RT_UG_M1000 _v.2.0.0 20.12.2013 44 / 83

Confidential

Center unless it the modem cannot read it from the SIM Card.

2. Click “Read” to refresh the “Network” and “Rx Level” status.

Values of received signal strength (RSSI)

Value of received signal strength indication (RSSI)

Interpretation of the received signal strength

0 to 12

Insufficient or weak

13 to 19

Average

20 to 31

Good

No signal

Note: RSSI should remain higher than 12 to create/accept GSM CSD data calls or establish a GPRS connection. Users

can only transmit/receive by SMS (short message) if the RSSI is less than or equal to 11.

A better way of verifying the RSSI signal (instead of using the Modem Configuration) is to check the “SIGNAL” LEDs on

the front panel directly. See 2.2 LED Indicators for more information.

Antenna selection guide

Value of received signal strength indication (RSSI)

Antenna selection

0 or 1

GSM/GPRS is not good solution in the area

1 <RSSI≤12

Select antenna gain > 10 dBi

12 <RSSI< 20

Select antenna gain > 3 to 5 dBi

≥21

Select antenna gain > 0 to 3 dBi

3.2.17 Init. String

User could enter the initial string in the text input box.

The preset Init. String will take effect under “Normal Mode”.

Note: Maximum 39 characters for each initial string.

1 2 ... 40 41 42 43 44 45 46 47 48 49 50 ... 84 85

Sin comentarios

Robustel M1000 User Guide Manual de usuario Pagina 45