We present a simple to use implementation of networking across ultrasonic frequencies, by making use of Gnuradio and a microphone and speakers. This allows you to use TCP/IP,UDP across an audio link.

#sonido #rf #tx

https://www.defensenews.com/2020/12/21/the-military-is-scrambling-to-understand-the-aviation-crash-risk-from-a-new-5g-sale/

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https://sites.google.com/site/linuxdigitallab/rf-homebrew-instrument/rf-attenuator-81db-1db-step https://www.qsl.net/z33t/rf_step_attenuator_eng.html https://www.arrl.org/files/file/Technology/tis/inf

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pal y secam https://bellard.org/dvbt/

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https://www.assemblymag.com/articles/94891-shielding-tips-and-tricks

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https://www.bunniestudios.com/blog/?p=5820 https://xobs.io/trace-together-token-teardown/

#rf #lora #iot #covid

A Ham's Guide to RFI, Ferrites, Baluns, and Audio Interfacing Revision 7 Jan 2019by Jim Brown K9YC http://audiosystemsgroup.com/RFI-Ham.pdf estas 2 tmb las recomiendo leer http://k9yc.com/Multi-Statio

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están organizando al red monitoreo de IARU 2 tiene buena info sobre como reportar interferencias https://www.iarums-r2.org/

#radio #piratas #rf #iaru

Knallfunken Knallfunken is a two-channel radiophonic work realized in collaboration with the Nauen shortwave transmitter in Brandenburg (the world's oldest continuously operating radio broadcaster) an

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:O http://ravivganchrow.com/Pages/SparkGap/knallfunken_text.html

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https://www.linkedin.com/pulse/28gbps-microstrip-pepper-jack-cheese-substrate-ryan-lott/

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