1.5 GHz PLL Frequency Synthesizer 10Mbps BPSK ZIF transceivers for 1.2GHz, 2.3GHz and 3.4GHz

 https://en.wikipedia.org/wiki/Phase_modulation

https://iqst.ca/quantech1/quantechi/PLL.html
MC145158 PLL Frequency Synthesizer
https://www.next.gr/circuits/Using-the-MC145158-PLL-Frequency-Synthesizer-l49007.html

Costas PLL Loop System for BPSK Detection

The ADF4159 is a 13 GHz, fractional-N frequency synthesizer with modulation and both fast and slow waveform generation capability.

The LMX2541 is a low power, high performance frequency synthesizer system which includes a PLL, Partially ... 9.6.1.8.13 FSK - Frequency Shift Keying. This bit ...

http://antena.fe.uni-lj.si/literatura/Razno/ZIF/ZIF10.19/design.html
10Mbps BPSK ZIF transceivers for 1.2GHz, 2.3GHz and 3.4GHz
AD8349 quadrature modulator
AD8647 quad, rail-to-rail, single-supply amplifiers
ADF4351 voltage controlled oscillator
MAX2870 frequency synthesizer

https://www.researchgate.net/figure/Block-diagram-of-a-PLL-frequency-divider_fig2_271520378

2: Block diagram of a PLL frequency divider.  | Download Scientific Diagram

bpsk
https://web.njit.edu/~gilhc/EE495/ee495main.htm
https://pe2bz.philpem.me.uk/electronicprograms/-%20elf-programs/bpsk-decoder/watsbpsk.htm
 

http://www.wireless.org.uk/moritz.htm
variable phase modulator  2N2907 NE5532 LM311 BPSK modulator Wolf Coheren 137kHz carrier external  well-smoothed  required

https://worldwidescience.org/topicpages/e/efficient+digital+modulation.html

https://www.researchgate.net/figure/Schematics-of-the-phase-modulation-electronics-The-phase-comparator-and-the-VCO-are_fig1_303094137

modulation  QAM Quadrature Amplitude Modulation psd
https://wirelesspi.com/quadrature-amplitude-modulation-qam/
QPSK  8PSK  16APSK  32APSK
https://www.researchgate.net/figure/Digital-Modulation-techniques-A-to-D_fig2_316471712

[PDF] Visualization of digital modulation techniques

ASK PSK FSK APSK QAM DPSK QPSK
https://www.5gtechnologyworld.com/the-basics-of-5gs-modulation-ofdm/
The basics of 5G's modulation, OFDM - 5G Technology World
https://digitalmodulationtechnique.blogspot.com/
Digital Modulation Techniques Overview of Digital Pulse Modulation Techniques

Modulation Digital Pulse Modulation Techniques Noise Countermeasures
PSK Noise Countermeasures Remove Some Noise: On Pre-processing of Side-channel