Difference between revisions of "QRP Labs High Performance SDR Receiver"

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== Polyphase Module ==
 
== Polyphase Module ==
  
[[file:QRP-Labs_Polyphase-Filter_P1966-720px.jpg]]
+
[[file:QRP-Labs_Polyphase-Filter_P1966-720px.jpg]] [[file:Polyphase-pcb.PNG]]
  
 
== Bandpass Module ==
 
== Bandpass Module ==

Revision as of 20:33, 20 November 2021

QRP-Labs P1956-720px.jpg

Features

Silkscreen / Pinout

IQ RX PCB.PNG

Pins

  • IQ pins
  • I, GND, Q outputs
  • Power pins
  • GND, +5V, +5V or +12V to +14V
  • Tx Mute Input
    • 5V mutes inputs
  • LO input
    • 3.3V from Si5351A oscillators
  • IF input
    • From external Bandpass Filter Switch

Receiver Module

QRP-Labs Receiver-Base P1969-720px.jpg

Polyphase Module

QRP-Labs Polyphase-Filter P1966-720px.jpg Polyphase-pcb.PNG

Bandpass Module

QRP-Labs BandPass-Filter P1963-720px.jpg

Bandpass Filter Schematic.PNG

Build Issues

  • Transformers don't fit well and crowd parts around them
  • QRP Labs polyphase module pics are for older revision card

Reference Documents