Sunday 10 July 2022

Irwell HF Transceiver VFO Oscillator Module Re-Visited Pt2

For part 1 of revisiting the Digital VFO Oscillator  module click here.

 Si5351 TCXO xtal replacement


In the last blog post I looked at replacing the three 25MHz xtals that are used for  reference clocks on the Si5351 IC's located on the the oscillator module of my digital VFO. 

The mod/upgrade to a single TCXO (temperature controlled xtal oscillator) module was carried out and tested in a lashup fashion with great success. In this blog post I report on the fabrication of a new PCB that is TCXO ready!