Hi,
As may many of you seen on RTL-SDR blog the RPITX V2 is out there
We made several measurements booth on 434 MHz and 144 MHz and looks like the first still has difficulties while the second (144 MHz) is exceptionally clean, even with PA (1W) and almost no filtering.
434 MHz strange spuriouses around and fundamental weaker then 2nd harmonics…
434 MHz Spectrum painting:
434 MHz SSB:
144 MHz SSB 1W:
144 MHz SSB 1W close up:
Stay tuned for our upcoming Rapsberry Pi 2m Amplifier HAT for RPITX V2! 🙂