StreamCaster 4000 series MIMO Radio User Manual
9/2/20
10017C000
Silvus Technologies Confidential
Page
136
Z = (Y-X)/51
SNR_mw = (X
–
12 * Z)/(64 * Z)
SNR_db = 10 * log(SNR_mw)/log(10)
SNR_db is the SNR in dB and it is averaged across all antennae.
The SNR obtained above is more accurate when the real SNR goes below 10 dB. Above 10 dB, the SNR
obtained from the raw signal and noise values are more accurate.
Below is an example of the RSSI report:
Report Type
Length
Information
5009
1
""
5010
4
"1.0"
5008
5
"2333"
5000
5
"-43"
5001
5
"-31"
5002
5
"-28"
5003
5
"-66"
5004
5
"-190"
5005
8
"8604568"
5006
8
"8861322"
5007
5
"1025"
1
1
""
Table 23 Sample RSSI Report
The corresponding raw UDP dump in hexadecimal format is attached below. For the purpose of easier
reading, each byte is separated by a space, and each item is separated by a new line. The real streaming
report is continuous without any spaces or newlines and is currently 109 bytes long.
13 ffffff91 0 1 0
13 ffffff92 0 4 31 2e 30 0
13 ffffff90 0 5 32 33 33 33 0
13 ffffff88 0 5 20 2d 34 33 0
13 ffffff89 0 5 20 2d 33 31 0
13 ffffff8a 0 5 20 2d 32 38 0
13 ffffff8b 0 5 20 2d 36 36 0
13 ffffff8c 0 5 2d 31 39 30 0
13 ffffff8d 0 a 20 20 38 36 30 34 35 36 38 0
