qca/open-plc-utils

Check Signal Noise and Tonemaps

Tifoso1979 opened this issue · 3 comments

Tifoso1979 commented

i want to read SNR and tonemaps with the open plc utils tools.
Is this somehow possible and what are the commands? Are examples available?

the following documentation isn't helpfull for me
https://github.com/qca/open-plc-utils/blob/master/plc/SignalToNoise2.c

Tifoso1979 commented

hi all,

I could find the commands to read the noise but it is not working for all chipset.

QCA7500 = OKEY
QCA7005 = no tone maps available
-> Error int6ktone: No Tone Maps Available: Operation canceled

See below the commands and error. What is here wrong? How I can read tonemaps from QCA7005?

image

vbudko commented

Hello @Tifoso1979,

QCA7005 supports only OFDM QPSK, so the modulation is always the same within all the allowed carrier frequencies.
The plctone tool is not relevant for QCA7005.

BR, Vasily

Tifoso1979 commented

Thank you Vasily.

Could you tell me also more about the measurements in my example?

  • SNR = what are thresholds for stable PLC communication?
  • ATN = ?
  • BPC = ?
  • AGC = ?
  • GIL = ?
  • Are the values in the column history values or how I can understand this?
  • Any documentation about this available?

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