input: Write a python function to calculate the frequency and sample rate of a signal.
  assert calculate_freq_samp_rate(658e6, 2.048e6) == (658e6, 2.048e6)
  assert calculate_freq_samp_rate(1.024e3, 10e6) == (1.024e3, 10e6)
output: def calculate_freq_samp_rate(frequency, sample_rate):
      return frequency, sample_rate