LNA – Protecting Sensitive Components

https://www.macom.com/blog/designing-with-diodes-protecting

Sensitive low noise amplifiers (LNAs) in radar or radio receivers cannot tolerate large input signals without sustaining damage. What’s the solution? Receiver-protector limiter (RPL) circuits, the “heart” of which typically comprises PIN diodes, can be utilized to protect sensitive components from large input signals without adversely affecting small-signal operation. RPL circuits do not require external control signals. These circuits comprise…

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HAM RADIOnline

hamradio 2020 Friedrichshafen

Many varied topics relating to amateur radio, operating and broadcasting technology, as well as honors, talk groups and interviews will be presented on the Internet by the DARC under the title „HAM RADIOnline“ from June 26 to 29, 2020.The Software Defined Radio Academy team and the video crew „Fascination Amateurfunk“ are in charge.The HAM RADIOnline program sees itself as a…

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Microwave EME on Wiki

G4BAO EME Wiki

Sam G4DDK and John G4BAO published a page on Wiki about EME on the higher bands. The article is full of very useful and interesting information. From Introduction od article: Above the amateur radio 144MHz band low sky noise means EME takes on a different character. Low sky noise (noise temperature) means that very weak signals can be heard against…

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50 MHz & Up Group – Web Pages with archive

Mike Lavelle K6ML 50 Mhz & Up Group

On 50 MHz & Up Group web pages is possible to find a lot of very interesting microwave articles: A hybrid SDR made from the mcHF UI board and the HackRF front end, Gary, K6MG, May 2020 Millimeter Wave Path Selection and Propagation Prediction, Mike, K6ML, April 2020 New World Distance Record on 122GHz, Mike, K6ML, April 2020 Low noise…

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RF lecture series

Jeffrey Walling RF lecture series

Jeffrey Walling posted on YouTube a very interesting RF lecture series. Mr. Walling is Principal Engineer at Qualcomm and Professor on the University of Utah. He is an Experienced electrical engineer with emphasis on CMOS mixed signal, analog and RF circuit and system design. We believe, soon coming more lectures. Also, on Mr. Walling YouTube channel you can find a…

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SHF-meeting in Rosenfeld-Brittheim – Canceled

Rosenfeld-Brittheim shf treffen meeting

Google translated: Dear SHF friends, unfortunately, the SHF meeting on May 9, 2020, in Rosenfeld-Brittheim has to be canceled. The state government of Baden-Württemberg has ordered in the “Corona Regulation” from March 29, 2020, which applies until June 15, 2020, that events in public spaces are not permitted. We have therefore received notification from the municipality of Rosenfeld that the…

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