EModem

EModem - Modulates (or demodulates) the IQ input signal with the sub-carrier freq. The sub-carrier may be arbitrarily time-varying.

Figure: Diagram block


with following relationship :

One may specify the input and output impedances to account for insertion loss.

Figure: Dialog box


  • Modem type : modulator or demodulator.
  • Gain : gain between input and output envelope.
  • Input and output impedance :
    • Infinite input impedance, zero output impedance.
    • 50 Ohms input and output impedance.