October 2020 Blog Posts (2)
The GNU RADIO CW Keyboard - sending QRQ CW at 99 wpm test
https://github.com/duggabe/gr-morse-code-gen
using the PATCH above... the first test of using the GNU RADIO CW KEYBOARD is done at a QRQ CW speed of 99 wpm... and GNU RADIO's modular SETUP for this CW KEYBOARD really did a great job - excellent sounding QRQ CW…
ContinueAdded by Chuck aa0hw on October 14, 2020 at 10:42am — 2 Comments
The QRQ CW RE-Keyer System - a harsh square wave IN - pure sine wave OUT - with Raised Cosine edges
demo of taking the harsh square wave output of any kind of keyed CPO or CW Keyer's audio output - and RE-KEYING it exactly but transforming it to a pure sine wave CW NOTE with Raised Cosine edges (only takes 6 milliseconds from start to finish) uses ZAMGATE in SIDECHAIN MODE which has a pure sine wave TONE GENERATOR connected to Zamgate port…
ContinueAdded by Chuck aa0hw on October 4, 2020 at 8:00pm — 8 Comments
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