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Monthly Archives: March 2018
Building a ProgRock kit for use as a frequency reference for VHF / UHF Transverters – 1
The ProgRock is a kit produced by QRP-Labs. It is described as a triple GPS-disciplined programmable crystal, based around a Si5351A Synthesizer. Having read positive reports on the ProgRock I decided to order one, plus the optional GPS kit. I … Continue reading