The ULO preparation for the 1,9 cm receiver consists of a chain of frequency multipliers. Unwanted harmonics are supressed by appropriate filters. The unit is realized in classical coaxial technique.
Phaselock Oscillators
For the 5 cm receiver, a 10 GHz PLL was developed. The VCO operates at the LO frequency about 10 GHz. For phase and frequency comparison the signal is divided by 8 and directly compared to the station ULO.
For more information contact Michael Nalbach.