Frequency generation is usually a very critical part in every RF design. The higher the target frequency, the higher complexity. Usually. With the ADF4351, Analog Devices offers an effort-saving component level solution for frequencies up to 4.4 GHz. The ADF4351 from Analog Devices (ADI) is a modern wideband PLL synthesizer with integrated low phase noise […]
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LNB Modification for 10 GHz QO-100 Satellite Reception
This article shows how to modify an inexpensive LNB to accept an external LO-reference signal in order to be used as a K-band downconverter for QO-100 (Qatar Es’hail 2) amateur radio sattelite reception, radio astronomy or similar K-band experiments. This article is a shortened version of a scientific paper that I wrote as the lead […]
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Review: Analog Devices ADF4360 PLL Synthesizer
The ADF4360 series from Analog Devices is a a family of integer-N-synthesizer chips with on-board VCOs. Since the chips cover all amateur radio bands between 4m – 13 cm and are rather inexpensive, they are predestined to be used in homebrew amateur radio equipment. Not too long ago I reviewed ADI’s wideband PLL synthesizer ADF4351 […]
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