[Discuss-gnuradio] 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