Chuck aa0hw's Blog – April 2021 Archive (4)

SEND CW to SMART PHONE with wireless router using Raspberry PI, FLdigi, Vban-Emitter & Vban-Receptor

VBAN-RECEPTOR LITE mobile app

https://shop.vb-audio.com/en/ios-android/26-vban-receptor-lite.html

VBAN-EMITTER (Linux/raspberry pi) APP…

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Added by Chuck aa0hw on April 24, 2021 at 12:44pm — No Comments

test sending CW over IP with the EAC3 codec at Zero Hertz - demod the RX signal with a soundcard SDR

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brief test to see how well the EAC3 CODEC can reconstruct the ON /OFF cw element framework of Morse Code from a CW KEYER sending CW at "0" hz

NOTE: test starts out at QRQ speeds, then CW speed goes down to 20wpm, gradually back up again and over 100 wpm, then back down, to give an idea of how this experimental Morse…

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Added by Chuck aa0hw on April 13, 2021 at 12:51pm — No Comments

The Versatility of the AD5DZ CW Keyboard for QRQ CW copy by ear Practice

brief demo of having the AD5DZ CW Keyboard send a text file at 71wpm and then adjusting the KB's many settings to fine tune how the CW sounds for best COPY BY EAR during a QRQ CW training session

https://odysee.com/@QRQcw:e/QRQcwWITHad5dzCWkeyboard:9?r=HnknoaHhbXtaiVWpkvmmaPWrfFby4Cs4

Added by Chuck aa0hw on April 13, 2021 at 8:00am — 1 Comment

QRQ CW Keyboard for the iPHONE using an EMF induction coil to iPHONE Microphone interface: LIVE demo

iCW example, to send CW with a QRQ CW Keyboard on the iCW Mumble Server

https://sites.google.com/site/icwoip/

concept - @8Khz was found to be a peak iPHONE MIC frequency pick-up from the EMF COIL by using an audio oscillator to test which frequency is…

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Added by Chuck aa0hw on April 8, 2021 at 11:11am — No Comments

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