Promax Cable Ranger+ User Manual page 39

MER: Modulation Error Ratio.
PreBER: Error ratio before correction.
PostBER: Error ratio after correction.
Interleaver: Improvement of error correction performance.
Offset: Offset for tuning frequency.
Downstream (OFDM modulation)
►
System: Transmission standard.
Frequency PLC: PLC channel frequency.
FFT Size: Amount of subcarriers.
PLC MER: MER of PLC channel.
Active Carriers: Active carriers.
NCP Modulation: Codeword NCP modulation.
Time Interleave: Improvement of error correction performance.
Spacing: Spacing between subcarriers.
Upstream
►
UCD: Upstream Channel Descriptor.
Frequency: Channel frequency.
Symbol Rate.
Bandwidth: Channel bandwidth.
Modulation.
Power: Channel power to CMTS.
Attenuation: Channel attenuation to CMTS.
Options Menu
►
There are some options at the bottom of the screen:
: Screenshot.
CLEAR: It clears spectrum trace (this options is available if trace was hold
previously).
REGISTERING: It accesses the screen to register in the CMTS (see next
section).
March 2020 34 Chapter 3: MEASUREMENT