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Profile Frequency Parameters

Todd Schumann edited this page Aug 9, 2018 · 7 revisions

The frequency parameters define the center frequency of the measurement and the relationship between the SDR center frequency and the CW frequency output from the signal generator.

Profile Frequency Parameters

Note: italicized parameters have default values and can be left unset

  • freq_f0 = [USER_SET]: This parameter (in Hz) defines the center frequency of the measurement. It is required in all tests except the tests which sweep frequency (in which case it is forced to a dummy value to pass profile checks of dependency tests).
  • freq_use_offset = False: This parameter, which defaults to False, will trigger an offset between the center frequency of the SDR and the CW frequency output by the signal generator. In the case of no stimulus being applied, this is ignored.
  • freq_offset_f0_and_cw = 'DEFAULT': This parameter, which defaults to 'DEFAULT', is the frequency distance between the SDR center frequency and the CW frequency if freq_use_offset is set to True. This value should always be set in Hz, except when using 'DEFAULT' which will then use 25% of the set measurement bandwidth of the SDR.
  • freq_offset_using_sdr = False: This determines which frequency is shifted if freq_use_offset is set to True. If this flag is set to True, the SDR center frequency will be shifted; if this flag is set to False, the CW frequency will be shifted. The default value for this flag is False.

Parameter Quick-Copy

For convenience, here is a copyable list of parameters in this category

# Frequency Parameters
freq_f0 = [USER_SET]
#freq_use_offset = False
#freq_offset_lo_and_cw = 'DEFAULT'
#freq_offset_using_sdr = False