Contests on the first weekend in August

Alpe Adria, Bayerische Berg Tag, DARC Sommer Fielday, OK Letni QRP

On the first weekend in August don’t forget to participate in some of few “field day” style contests: Sommer-BBT Contest (2m to 6cm) DARC UKW-Sommer-Fieldday (2m to 6cm) ALPE-ADRIA VHF CONTEST (2m) OK Letní QRP Contest (2m) We wish you nice weather and good propagation! Enjoy! Photo credit: Photo by 🧔‍♂️ Michal Kmeť on Unsplash

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CQ-DATV Issue 96 – June 2021

CQ-DATV June 2021

The new issue of CQ-DATV is available for download Contents News and World Round-up 600 Watt, 23cm, Amplifier Voyager MiniTutiouner-Express advert One Ham’s Solution to Living Behind a Tall Mountain How to connect Adalm Pluto to the Internet without using the USB / Ethernet adapter From the vault – The BASIC Engine Information Coming up Enjoy reading! Picture: cover photo…

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Over 50 km on 481 THz! Great news from SP

PK UKF 481 THz

On May 8, 2021, the group of Polish radio amateurs: Marek SP4ELF, Jurek SP2GUB, Adam SQ2DOL, Piotr SQ4MIK, and Jarek SQ4IOB realized optical communication (481 THz) between the locators KO04nd40DA and KO04fi31GV for a distance of 50.018 km. So they have broken the magic limit of 50 km! Congratulations! Read more on: http://mikrofale.cafe/showthread.php?tid=248 https://pk-ukf.pl/optyczne-qso-na-odleglosc-50km/ Pictures: https://photos.google.com/share/AF1QipNqhgzWZOJDFAMIwAlOCQ1vXA-EPRS9rTA-oRjSj8ranU7N7XbhAZJlsWPDFoyPqg?key=NWoxVk02UW1jbHp6NWVVX1Y3a2JYb1dtcExwRUd3 Cover picture: https://pk-ukf.pl/optyczne-qso-na-odleglosc-50km/#iLightbox[gallery5661]/0 Thank…

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Free RF Engineering Software for Hamradio Enthusiasts

KiCad

If you create your own hardware you need good software tools to doing that. Professional software is too expensive for hobby users but some free software tools doing a good job too. SignalIntegrity – is Python based software for signal and power integrity brought to you by Teledyne LeCroy. It has two main uses: SignalIntegrityApp – A GUI software application that…

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CQ-DATV Issue 94 – April 2021

CQ DATV 94 April 2021

The new issue of CQ-DATV is available for download Contents Production Team Editorial News and World round up A Cheap ATV Amp for 420-450 MHz Does DATV Radiate as Far as FM-Voice ? Grass Valley Mixer Conversions – Part 27 Phase Noise Issue Resolved for ADF-5355 MiniTutiouner-Express advert QO-100 All Modes Station Mixed Remote Station Based on SDR ADALM-PLUTO From…

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