Drain Currents are the unique HK parameter monitoring the electric behavior of the LFI Front End LNAs.
Their importance is related with their capability to track gain changes at Front-End level induced by Gate
Voltage (Vg) and Drain Voltage (Vd) changes. In fact, Vg and Vd are not measured but only indirectly
known from the values set at DAE level any time the DAE actual TM packet is commanded (once per
