User's Manual

SKY66430-11 / SQN66430-11 SiP • Evaluation Board User Manual V1.0
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
10 May 6, 2019 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 205375A
6.1 Checking the Signal Strength
When your board is connected to a network, you can check the signal strength and characteristics through the following AT command:
 AT+CSQ
 Response will be
+CSQ:<rssi>,<ber>
where <rssi> represents the signal strength at the antenna and <ber> is the bit error rate in %.
Table 4. <rssi> Conversion Table
Table 5. <ber> Conversion Table
6.2 Sending Data Through the Evaluation Board
 When your Kit is connected to a network, you can attempt to do a ping to a remote server using AT+PING
Example:
AT+PING=”8.8.8.5”
Response:
+PING: 1,8.8.8.8,2190,119
+PING: 2,8.8.8.8,310,119
+PING: 3,8.8.8.8,430,119
+PING: 4,8.8.8.8,110,119
 Documentation for PING as well as other AT commands allowing to open TCP, UDP sockets, send data requests over HTTP or connect to
an MQTT broker can be found in the AT commands Reference Manual, see [1].
<rssi> Parameter Signal Description with RSSI Value Range
0-9 Marginal: -113 dBm to -95 dBm
10-14 OK: -93 dBm to -85 dBm
15-19 Good: -83 dBm to -75 dBm
20-30 Excellent: -73 dBm to -53 dBm
31 Excellent: -51 dBm or greater
99 Unknown or not detectable
<ber> Parameter Bit Error Rate (in %)
0 Less than 0.2%
1 0.2% to 0.4%
2 0.4% to 0.8%
3 0.8% to 1.6%
4 1.6% to 3.2%
5 3.2% to 6.4%
6 6.4% to 12.8%
7 More than 12.8%
99 Unknown or not detectable