Re: QAM Transmitter/Receiver using USRP

2025-03-10 Thread Marcus Müller
Hi Dimitris, GNU Radio ships with examples, I think some of the packet examples could do QAM out of the box, via OFDM. Just swap out the constellation objects from the PSK they're using to QAM. Problem with QAM is simply that you need coherent reception, i.e., your receiver needs to correct

QAM Transmitter/Receiver using USRP

2025-03-10 Thread Dimitris Pliatsios
Dear all, I am trying to build a QAM transmitter & receiver that uses a USRP device as a front-end. To start with, I am searching for something ready, if it exists, in order to modify it to my needs. Is there an official/standard repository for .grc projects? I searched on GitHub, but many