Inverto 412 LNC rebuild to a external TCXOscillator for QO100

In this Video I show how to rebuild a Inverto 412 LNC to a external Input for a TCXO (Temperature Compensated X Oscillator). One of the other output is then the IF output. The external Oscillator is more stable at 25MHz and this is multiplied inside the IC 390times that mean 25MHz * 390times= 9750MHz LO (Local Oscillator) and the to receiving frequency is 10489,5MHz - 9750MHz = 739,5MHz this can be received with a USB SDR-stick in USB modulation on the QO100 at 26°East. satellite see more information on https://amsat-dl.org/tag/qo-100/

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