
Chapter 1 – Introduction and Product Description
Multi-Tech Systems, Inc. RouteFinder RF825/RF825-AP User Guide (Document Number S000422B) 11
Signal Strength LEDs Reference Chart
Signal Strength AT Commands:
The EDGE query signal strength command is: AT+CSQ
Response Example: +CSQ: xx, 99 (For xx, see the values chart below)
The CDMA query signal strength command is: AT+CCED
Response Example: +CSQ:16, 99
+CCED:0,0,384,26,2,6,104,2513,2,17,xx,-45,-63 (For xx, see the values chart)
Definition of xx Values
The following table lists the xx values and explains how they correspond to the number of LEDs lit for signal
strength.
AT+CSQ xx Values Signal Strength LED Bars Signal Strength
0 to 6 No LEDs are lit Very weak signal
7 to 14 1 Bar LED is lit Weak signal
15 to 23 1 Bar and 2 Bar LEDs are lit Stronger signal
24 to 31 1 Bar, 2 Bar, 3 Bar LEDs are lit Strongest signal
AT+CCED xx Values Signal Strength LED Bars Signal Strength
-113 to -101 No LEDs are lit Very weak signal
-99 to -85 1 Bar LED is lit Weak signal
-83 to -67 1 Bar and 2 Bar LEDs are lit Stronger signal
-65 to -51 1 Bar, 2 Bar, 3 Bar LEDs are lit Strongest signal
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