It is ten years since I built my MK2 13cm transverter (above). Back then the concept
Wow! How technology has advanced. No offence to CT1DMK and VE1ALQ who developed the CPLD board on the left. This is the PLL board used to lock the LO in my 9cm transverter to my 10MHz GPSDO. The board, dated 2007, is roughly 6cm square and continues to give me good service.
Steen Nielsen, OZ5N’s Auto-