id: apollo_pm_mod
label: Apollo PM Mod
category: '[Apollo USB]'
flags: [python]

parameters:
- id: pm_deviation
  label: PM Deviation (rad)
  dtype: real
  default: '0.133'
- id: sample_rate
  label: Sample Rate
  dtype: real
  default: '5120000'

inputs:
- label: in
  domain: stream
  dtype: float

outputs:
- label: out
  domain: stream
  dtype: complex

templates:
  imports: from apollo.pm_mod import pm_mod
  make: apollo.pm_mod.pm_mod(pm_deviation=${pm_deviation}, sample_rate=${sample_rate})

documentation: |-
  Apollo PM Modulator

  Applies phase modulation to produce complex baseband signal.
  Takes a composite modulating signal (sum of subcarriers) and outputs
  s(t) = exp(j * pm_deviation * input(t)).

  The spacecraft PM deviation is 0.133 rad (7.6 degrees) peak.
  This is the transmit-side counterpart to Apollo PM Demod.

  Parameters:
    pm_deviation: Peak phase deviation in radians (default 0.133)
    sample_rate: Sample rate in Hz (default 5.12 MHz)

file_format: 1