https://github.com/gordonjcp/lysdr demo of using LYSDR to demod 3 VLF frequencies at the same time using multiple instances of LYSDR and combing their demod'D audio outputs…
ContinueAdded by Chuck aa0hw on December 26, 2022 at 11:13am — No Comments
QUiSK SDR with the help of unixCW, gSTREAMER & RECRI KEYER allows a unique way to practice your CW copy by EAR
SETUP: unixCW's CW program is sending the same text file at speeds below & just above, say...a current comfortable CW copy by ear speed... pick a text file and speed that is no longer than 10 to 15…
ContinueAdded by Chuck aa0hw on December 25, 2022 at 10:26am — No Comments
uses FLdigi, Gstreamer and VIRTUAL AUDIO CABLEs the virtual audio cables take the CW AUDIO OUTPUT from FLdigi and send it to the OP's soundcard(for CW sidetone monitoring @ low latency) AND sends it over iP to the other CW OP(can use any audio codec via Gstreamer)
one Gstreamer SCRIPT does it all - grabs FLdigi's…
ContinueAdded by Chuck aa0hw on December 24, 2022 at 1:39pm — No Comments
demo of setting up a pi4 to act as an RTSP virtual ham radio ionosphere SERVER that many OPs can connect to for QSO'n or just listening... this setup uses an i/q input above and below ZERO POINT by about 80 Khz worth of RF SPECTRUM - to gather together and QSO uses the gSTREAMER wavpack codec, and a gstreamer…
ContinueAdded by Chuck aa0hw on December 17, 2022 at 2:09pm — 1 Comment
demo showing unixcw/CW sending 8 different CW Text files at 60 wpm to a pi4 QUISK SDR, using sonobus on the pi4 to send QUISK SDR demodulated output to the iphone sonobus// iphone using REALvnc to choose which pi4 QUISK SDR VLF SIGNAL to demod and listen to
UNIXCW CW…
ContinueAdded by Chuck aa0hw on December 17, 2022 at 10:10am — No Comments
brief demo using the sound card SDR modules from RECRI KEYER to downconvert 5 VLF CW signals from 16Khz to 20Khz converted/mixed down to CW audio at 700 hertz
Added by Chuck aa0hw on December 15, 2022 at 9:30am — No Comments
brief demo showing the REMOTE Pi4 VLF TRANSMITTER setup and a laptop soundcard SDR receiver using its own FERRITE LOOPSTICK ANTENNA to pick up the VLF signal from the remote PI's transmitter's loop antenna located in the other room
soundcard SDR modules are from RECRI KEYER…
ContinueAdded by Chuck aa0hw on December 12, 2022 at 1:45pm — No Comments
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
2008
© 2024 Created by Chuck aa0hw. Powered by