One frequency section: its label, the NORTH / EAST / UP PCO in meters,
the PCV samples in row order, and its RMS section (nil when the file has
none).
Summary
Types
@type pcv_sample() :: %{ grid: :azi | :noazi, azimuth_deg: float() | nil, zenith_deg: float(), value_m: float() }
One PCV value: NOAZI (:noazi, azimuth_deg: nil) or an azimuth row (:azi).
@type t() :: %Sidereon.GNSS.Antex.Frequency{ frequency: String.t(), pco_m: {float(), float(), float()}, pcv_samples: [pcv_sample()], rms: Sidereon.GNSS.Antex.FrequencyRms.t() | nil }