User Tools

Site Tools


user:jenda:tcxo

This is an old revision of the document!


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
    • For rtl-sdr that used the small rectangular oscillator:
      • 3 … R820T pin 8 (the second in the second row)
    • For rtl-sdr that used the 2-pin THT xtal
      • 3 … the other pin than pin 8 that was connected to the xtal
    • 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.
user/jenda/tcxo.1535305909.txt.gz · Last modified: 2018/08/26 17:51 by jenda