24 GHz AirScatter between IK2OFO and DK3SE

24 GHz QOS Airscatter between IK2OFO and DK3SE

On 16th October made Roberto IK2OFO and Salvatore DK3SE an Airscatter CW QSO on 24 GHz. The distance between these two stations is 313 km! On IK2OFO web you can read a article about these very interesting QSO: Two New one: QSO AirScatter in CW a  24 GHz, QSO I-DL 24 GHz!! Used equipment: DK3SE Radio: IC 706 MKII + PANADAPTER…

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60th anniversary of first OK QSO on 10GHz

OK2KKW first OK amateur radio 10GHz QSO

From OK2KKW webpage, a nice story about first OK QSO on 10 GHz: Another piece, representing the level of our technology, they had with them at Klínovec OK1KAD – the first device for 10 GHz, equipped with a klystron and a superheat receiver. Unfortunately, due to an unfavorable coincidence, the connection failed to a greater distance. One of the facilities…

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M17 Project – new digital radio protocol

M17 new digital radio protocol hamradio amateurradio

Before few months, Wojciech SP5WWP informed us about M17 project. M17 is a new digital radio protocol in development as an alternative to those currently available, with freedom in mind. “The goal here should be to kick the proprietary protocols off the airwaves, replace DMR, Fusion, D-Star, etc. To do that, it’s not just good enough to be open, it…

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Over 50 km on 481 THz! Great news from SP

PK UKF 481 THz microwave radio amateur

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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