IQ Radios

Design

• Direct Conversion Receiver
• Quadrature Methid
• Tayloe Detector

Builds

• QRP Labs High Performance SDR Receiver
• 5 band switch - QRP Labs
  • 10/15/20/40/80M QRP Labs Band Pass Filter Kits
• 6 Channel Relay Driver Card
• VFO-003 Clocks Generator
• AudioAmp386 - Audio Amplifier

QCX+ Radio

• QCX+ Radio - QRP Labs

References

• A Software Defined Radio for the Masses, Part 4
• Ultra Low Noise, High Performance, Zero IF Quadrature Product Detector and Preamplifier - By Dan Tayloe
• uSDX
• QCX-SSB