Product Info

RTL8822CE RTL8822CU RTL8822CS COB TSSI MP FLOW
©2019 Realtek Semiconductor Corp.
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If the instrument supports true MIMO, switch MIMO or composite EVM analysis method, the
VHT and HT items (OFDM is as same as above) criterion can be changed to below table:
Data Rate
Antenna
Channel
Item
Criterion
MCS7-Nss2-B80
Antenna AB
CH42
CH58
CH138
CH155
Power
Typical: 15dBm, Acceptable Range: +1.5/-2dB
EVM
< -28dB
Freq. Err.
±10ppm
Leakage
< -25dBtotal
Mask
IEEE spec. defined
MCS15-B40
Antenna AB
CH118
Power
Typical: 15dBm, Acceptable Range: +1.5/-2dB
EVM
< -28dB
Freq. Err.
±10ppm
Leakage
< -20dBtotal
Mask
IEEE spec. defined
MCS15-B40
Antenna AB
CH10
Power
Typical: 15dBm, Acceptable Range: +1/-1.5dB
EVM
< -28dB
Freq. Err.
±15ppm
Leakage
< -20dBtotal
Mask
IEEE spec. defined
Table 9: The recommended test items of WiFi Tx with 2-stream measurement
While MP driver is going to measure 256-QAM, Tx index will take the power value in
power-by-rate table as measuring reference itself. The criterion would be changed as below table :
Data Rate
Antenna
Channel
Item
Criterion
MCS9-Nss1-B80
Antenna A
Antenna B
CH42
CH58
CH138
CH155
Power
Typical: 14dBm, Acceptable Range: +1.5/-2dB
EVM
< -32dB
Freq. Err.
±10ppm
Leakage
< -25dBtotal
Mask
IEEE spec. defined
Table 10: The recommended test items of WiFi Tx with 256-QAM measurement
* The table target power is RTK default value , the user can define traget power by yourself.