Specify list of options as RFOPTS=(A|B|C) where current list includes: ENABLE - enable options mask XREF - use eXternal reference XADCLK - use eXternal A2D clock ATTEN - enable Attenuation LNA - enable Low Noise Amplifier DCS - enable DC Suppression AIS - enable Automatic Image Suppression AGC - enable Automatic Gain Control BBAMP - enable Base Band Amplifier