# \[Hilo\] Any link among \<AT+CIND?\>, \<AT+CSQ\> and \<AT+KCELL=0\>?

**URL:** <https://forum.sierrawireless.com/t/hilo-any-link-among-at-cind-at-csq-and-at-kcell-0/6593>\
**Category:** HL Series FAQ\
**Created:** [July 23, 2013, 7:16am UTC](https://forum.sierrawireless.com/t/hilo-any-link-among-at-cind-at-csq-and-at-kcell-0/6593 "2013-07-23T07:16:40Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![FAQ\_Poster](https://avatars.discourse-cdn.com/v4/letter/f/f9ae1b/32.png) [@FAQ\_Poster](https://forum.sierrawireless.com/u/FAQ_Poster)\
**Post date:** [July 23, 2013, 7:16am UTC](https://forum.sierrawireless.com/t/hilo-any-link-among-at-cind-at-csq-and-at-kcell-0/6593/1 "2013-07-23T07:16:40Z")

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[Hilo] Is there any link among result of \<AT+CIND?\>, \<AT+CSQ\> and \<AT+KCELL=0\>? How are the signal quality of \<AT+CIND?\> and \<AT+CSQ\> computed?

Answer: CIND and CSQ are computed based on “Field Strength level” whose possible values are [0-63, 0xFF]. They are just expressed in different manner and ranges.

The Signal quality of \<AT+CIND?\> is computed as follows:  
\<AT+CIND?\> will returns 0 if Field-Strength is [0].  
\<AT+CIND?\> will returns 1 if Field-Strength is in range of [1-10].  
\<AT+CIND?\> will returns 2 if Field-Strength is in range of [11-20].  
\<AT+CIND?\> will returns 3 if Field-Strength is in range of [21-35].  
\<AT+CIND?\> will returns 4 if Field-Strength is in range of [36-63].

The RSSI of \<AT+CSQ\> is computed as follows:  
\<AT+CSQ\> will return [0] (That is -113 dBm or less) if Field-Strength is [0].  
\<AT+CSQ\> will return [1-30] (That is -111 to -53 dBm) if Field-Strength is in range of [1-59].  
\<AT+CSQ\> will return [31] (That is 51 dBm or greater) if Field-Strength is in range of [60-63].  
\<AT+CSQ\> will return [99] (not known or not detectable) if Field-Strength is [0xFF].

To check the Field-Strength level, you can use \<AT+KCELL=0\>.

For example:  
AT+KCELL=0  
+KCELL: 2,  
2,43,39,64f000,247c,fc8,60, ---- Field-Strength 60 is in range of [0-63, 0xFF]  
255,568,5,64f000,247c,e31,40  
OK  
AT+CIND?  
+CIND: 2,4,1,1,0,0,0 ---- Signal quality 4 is in range of [0-4]  
OK  
AT+CSQ  
+CSQ: 31,99 ---- RSSI 31 is in range of [0-31, 99]  
OK