20M有MOD、叫修查了後說是超距要降速到27M
結果如下
請問要是叫中華把上下傳改成5M/27M的話、SNR會變嗎?
thx
VDSL Port Details Upstream Downstream
Line Rate: 3.229 Mbps 25.519 Mbps
Actual Net Data Rate: 3.102 Mbps 25.472 Mbps
Trellis Coding: ON ON
SNR Margin: 11.7 dB 6.8 dB
Actual Delay: 6 ms 7 ms
Transmit Power: 8.6 dBm 14.5 dBm
Receive Power: -11.5 dBm -8.3 dBm
Actual INP: 20.0 symbols 26.0 symbols
Total Attenuation: 20.0 dB 22.7 dB
Attainable Net Data Rate: 6.755 Mbps 27.780 Mbps