High Stability with next-generation integrated NC FM stereo radio transmitter chip BH1415, built-in PLL advanced modulation system ... Easy to Use with LCD display to show transmission frequency ...

These are fed to the PLL and attenuator in turn for FM and AM modulation, and the result is SSB. It’s only suitable for narrow bandwidths, but it’s a novel and surprisingly simple deign.

There are two radio modulation ... a dynamic PLL with phase shift in the FPGA. Shifting the phases also changes the frequency, so [nckm] can receive this audio signal with the FM transmitter ...

that’s used as a phase/frequency modulator. The PLL-VCO output signal is then fed directly to a PA that operates near the saturation/clipping level. It can use any one of the more efficient non ...