RTL-SDR TCXO mod

 /-----------\
 | 1       3 |
 | 2       4 |
 +-----------/
(top view)
  • Solder:
    • 1 … +3.3V (can be found e.g. on the IR receiver)
    • 2 … not connected
    • 3 … R820T pin 8 (the second in the second row)
    • 4 … GND
  • Enjoy your 0.5ppm experience!
  • When used in constant temperature, the original oscillator and TCXO provide comparable performance (+/- 0.1 ppm over several hours).
  • However, increasing the temperature from 28 to 48 °C means 0.14 ppm drift of the TCXO, but 3 ppm drift of the original oscillator.
 
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