For an FSK device, you can enable NRZ encoding (uncheck “Manchester encoding” in GUI) and send all “1” data, to get constant unmodulated signals (you could also send all “0” data to get that).
For an FSK device, you can enable NRZ encoding (uncheck “Manchester encoding” in GUI) and send all “1” data, to get constant unmodulated signals (you could also send all “0” data to get that).