Difference between revisions of "Kits and Parts Mixers"
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==== Toroid Winding Direction ==== | ==== Toroid Winding Direction ==== | ||
| − | * Toroids needs to be wound to match the pad locations on | + | * Toroids needs to be wound to match the pad locations on the PCB |
[[file:toroid-cw.jpg]] | [[file:toroid-cw.jpg]] | ||
Revision as of 19:17, 26 September 2021
Contents
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 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
Toroid Winding Direction
- Toroids needs to be wound to match the pad locations on the PCB
Kits and Parts ADE-1 Mixer
- Kits and Parts Mixer
- Build and tune diplexer first
Kits and Parts Diode Mixer
- Double Balanced Diode Ring Mixer Kit
- Build and tune diplexer first
Bridged Tee Diplexer
Diplexor is a bandpass/band-stop filter popularized by Joe Reisert W1JR that is used after a double Balanced Mixer to provide a 50 ohm termination to all frequencies at the mixer's IF port, and to the following amplifier stage. Maintaining a consistent load at the mixer avoids overload and Inter-Modulation Distortion (IMD) effects that these mixers are prone to when not properly terminated.
Videos
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