HF Signal Generator

My colleagues at work had complained that the signal generators in the office were heavy and difficult to set up. My plan was to create a unit that produced the office standard of 5.67 MHz, -45 dBm with a decent harmonic content.

Overall Design Concept

The basic components would be a programmed crystal oscillator, attenuator and filter. After some experimentation, the attenuator and filter were both split into two sections. The high signal level section was to be contained in a metal can. The oscillator was powered off 5V from a USB socket, the output was isolated via a transformer and referenced to ground comprising the case and connected equipment.

[To be completed]

[To be completed]

Final PCB Assembly

The final PCB assembled (with the tecan screening box lid removed).

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