Quadrature modulator/demodulator board

Digital and Analog Receivers and Transmitters for Spread-Spectrum Communication Systems used qaudrature modulator/ demodulator to recover the I and Q baseband signals from the amplified and filtered IF. Our development board based on RF2713 has I/O reconfigured to modulate I/Q signals onto an RF carrier. In IF systems where the IF frequency ranges from 100kHz to 250MHz, and the LO frequency is two times the IF.