Ron, thanks for the input!
On 03/25/2014 12:02 PM, Ron Economos wrote: > I took a look at the SBX schematic. The final output > uses a Mini-Circuits PHA-1+ MMIC amplifier that's > rated at +22 dBm output power at 1 dB compression. > > It would seem that the gain distribution of the SBX > is arranged so that the PHA-1+ cannot be overdriven, > even at DAC full-scale and 0 dB attenuation. That is, > you cannot saturate the SBX. > > So your measurements are showing that the SBX is > quite linear over it's operating range. > > BTW, I'm not really familiar with the USRP (I'm a bladeRF > user), but the amplitude value in tx_waveforms is most > likely just a relative amplitude (with 1 equal to DAC > full-scale), and not an actual voltage. That is correct. If you were using GNU Radio, and connected that to a USRP, this would be amplitude of the digital signal going into the USRP sink. Martin _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
