Power mode is set to True
=> it can be modified in eqpt_config.json - Span

There are 1 fiber spans over 80 km between Site_A and Site_B

Now propagating between Site_A and Site_B:
Reference used for design: (Input optical power reference in span = 0.00dBm,
                            spacing = 50.00GHz
                            nb_channels = 76)

Channels propagating: (Input optical power deviation in span = 0.00dB,
                       spacing = 50.00GHz,
                       transceiver output power = 0.00dBm,
                       nb_channels = 76)
Input optical power reference in span = 0.00 dBm:
Transceiver Site_A
  GSNR (0.1nm, dB):          40.00
  GSNR (signal bw, dB):      35.92
  OSNR ASE (0.1nm, dB):      40.00
  OSNR ASE (signal bw, dB):  35.92
  CD (ps/nm):                0.00
  PMD (ps):                  0.00
  PDL (dB):                  0.00
  Latency (ms):              0.00
  Actual pch out (dBm):      0.00
Fiber          Span1
  type_variety:                SSMF
  length (km):                 80.00
  pad att_in (dB):             0.00
  total loss (dB):             17.00
  (includes conn loss (dB) in: 0.50 out: 0.50)
  (conn loss out includes EOL margin defined in eqpt_config.json)
  reference pch out (dBm):     -17.00
  actual pch out (dBm):        -17.00
Edfa Edfa1
  type_variety:           std_low_gain
  effective gain(dB):     15.00
  (before att_in and before output VOA)
  tilt-target(dB)         0.00
  noise figure (dB):      6.62
  (including att_in)
  pad att_in (dB):        0.00
  Power In (dBm):         1.81
  Power Out (dBm):        16.81
  Delta_P (dB):           -2.00
  target pch (dBm):       -2.00
  actual pch out (dBm):   -2.00
  output VOA (dB):        0.00
Transceiver Site_B
  GSNR (0.1nm, dB):          31.17
  GSNR (signal bw, dB):      27.09
  OSNR ASE (0.1nm, dB):      33.29
  OSNR ASE (signal bw, dB):  29.21
  CD (ps/nm):                1336.00
  PMD (ps):                  0.85
  PDL (dB):                  0.00
  Latency (ms):              0.39
  Actual pch out (dBm):      0.00

Transmission result for input optical power reference in span = 0.00 dBm:
  Final GSNR (0.1 nm): 31.17 dB

(No source node specified: picked Site_A)

(No destination node specified: picked Site_B)