What is the unit of transmitting amplitude in benchmark_ofdm_tx.py

Hi there,

I wonder what is the unit of the transmitting amplitude used in
benchmark_ofdm_tx.py?

In transmit_path.py, it is recommended to try 8000, see below.

 def set_tx_amplitude(self, ampl):
     """
     Sets the transmit amplitude sent to the USRP
     @param: ampl 0 <= ampl < 32768.  Try 8000
     """
     self._tx_amplitude = max(0.0, min(ampl, 32767.0))
     self.amp.set_k(self._tx_

amplitude)

Thanks
Tianji

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