Kits and Parts Mixers

Kits and Parts Mixers Features in Common

• All Ports are 50Ω
• +7dBm Local Oscillator Injection Design
• Full Diplexer at the IF Port
• Optional Attenuators for RF & LO Ports
• Available as bare PCB or kit of parts

My Typical Applications

• 7 MHz RF, 40 M band
• 16 MHz LO
  • Si5351A square wave drive, 50 Ohm source impedance, 1.65V peak
• 9 MHz IF feeds Crystal Filter
  • SSB or CW Crystal Filter Design
    • SSB4 Crystal filter
    • CW5 Crystal Filter

Kits and Parts ADE-1 Mixer

• Kits and Parts Mixer
• Build and tune diplexer first

Toroid Winding Direction

• Toroids needs to be wound to match the pad locations/offsets on the PCB

ADE-1 Schematic

Performance

Port VWSR

• Measured VSWR of 2.23 at 9 MHz with NanoVNA matches spec nicely

Kits and Parts Diode Mixer

• Double Balanced Diode Ring Mixer Kit
• Build and tune diplexer first

Measurements

• NanoVNA
• No RF in
• LO driven by NanoVNA Tx
• IF output to NanoVNA Rx
• IF at 9 MHz
  • VSWR: 2.233
  • S21 Gain: -67 dB

• NanoVNA
• No LO in
• RF driven by NanoVNA Tx
• IF output to NanoVNA Rx
• IF at 9 MHz
  • VSWR: 2.216
  • S21 Gain: -42 dB

• Scanning from 1 to 100 MHz