this is a REMOTE RIG OPERATIONs setup for CW via AFCW mode for keying the RIG over IP on the LAN using Gstreamer AUDIO over IP scripts... laptop to a raspberry pi2b interface...
the RIT SETUP uses 3 SDR MODULES from RECRI KEYER in this order:
RX over IP STREAM to
"HILBERT CELL"…
ContinueAdded by Chuck aa0hw on September 13, 2022 at 1:56pm — No Comments
ZAMGATE SIDECHAIN GATE mode does the ENCODING and DECODING
encoder uses the RECRI OSCILLATOR SDR MODULE at ZERO HERTZ as the CW DATA KEYING INSTRUCTIONS ENCODER https://github.com/recri/keyer
CW RE-KEYER:
ZAMGATE…
ContinueAdded by Chuck aa0hw on August 29, 2022 at 8:00am — 1 Comment
Added by Chuck aa0hw on August 27, 2022 at 9:39am — 1 Comment
test to see how well a Pi4 MUMBLE iCW setup can handle all the apps it takes to setup up a MUMBLE INPUT and OUTPUT cw audio morse code RE-GENERATOR SYSTEM
80wpm QRQ CW test
https://sites.google.com/site/icwoip/
CARLA PLUGIN…
ContinueAdded by Chuck aa0hw on August 26, 2022 at 8:25am — No Comments
https://github.com/gordonjcp/lysdr
i/q encoding of CW Signals from -3kHZ to -30kHZ & +3kHZ to +30kHZ was done with 12 CW KEYBOARD from RECRI KEYER…
ContinueAdded by Chuck aa0hw on August 15, 2022 at 8:30am — 1 Comment
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this setup uses the following hardware:
1. raspberry pi 4
2. TLC555 that is keyed by a CW KEYER's RIG KEYING jack...(the TLC555 is powered by the PI's own 3.3v power supply via its GPiO pins
3. usb sound card with LINE INPUT - this demo uses a Behringer UCA222 the keyed 555's audio…
ContinueAdded by Chuck aa0hw on August 8, 2022 at 11:30am — 2 Comments
this video is a follow up to the first video here: https://youtu.be/RQh_4JW6adw
this video adds a CW KEYBOARD, and straight key to the Raspberry PI 4 iambic CW keyer shown in the first video... by using a 2nd keyed CPO at a different PITCH than the 1st keyed CPO in…
ContinueAdded by Chuck aa0hw on August 7, 2022 at 9:01am — No Comments
TLC555 timer chip square wave oscillator is being 'keyed' (pin 4/pos rail) by a CW KEYER & its iambic paddles AND also being keyed by FLdigi using FLdigi's serial port keying setup via a usb serial port adapter and keying the serial port's RTS PIN Both the CW KEYER and FLDIGI are keying the diode side of an H11F1 FET OPTOisolator chip and…
ContinueAdded by Chuck aa0hw on August 4, 2022 at 12:38pm — 1 Comment
the Gstreamer Script used in this video example:
*************************************************
gst-launch-1.0 -v alsasrc device=hw:4 ! "audio/x-raw, format=(string)S16LE, layout=(string)interleaved, rate=(int)48000, channels=(int)2, channel-mask=(bitmask)0x0000000000000003" ! tee name=t !…
ContinueAdded by Chuck aa0hw on July 30, 2022 at 2:13pm — No Comments
SDR RECEIVER built from RECRI KEYER's SDR MODULES: https://github.com/recri/keyer
several common CW Transmit/RX issues show up on iCW
1. keyclicks/square wave on OP's signal
2. CW pitch/keying too soft on OP's…
ContinueAdded by Chuck aa0hw on July 29, 2022 at 8:22am — No Comments
testing using 2 ferrite bobbin core inductor coils inside thick pyrex glass measuring cups to provide high voltage isolation protection between a RIG/cw keyer and a PC soundcard's input
used for sending CW AUDIO over SonoBus by keying a TWIN-T oscillator
the output of the TWIN-T goes to a class D amp…
ContinueAdded by Chuck aa0hw on July 28, 2022 at 10:30am — 1 Comment
using the dummy sound card JACK set to 800Khz, a Raspberry PI 4 transmitter sends LongWave CW to a laptop receiver over ip using these Gstreamer scripts:
/Pi4 TRANSMITTER:\
qrq@pi4b:~ $
gst-launch-1.0 -v jackaudiosrc ! "audio/x-raw, channels=1" ! audioconvert ! rtpL24pay ! udpsink…
ContinueAdded by Chuck aa0hw on July 27, 2022 at 8:24am — No Comments
FLdigi is keying a TLC555's pin 4/POS rail to send out a square wave CW NOTE at 1850 hertz - goes to a PI4 usb sound card's LINE INPUT...goes to a HILBERT CELL, then a BANDPASS FILTER(centered at 1850hz) then to a GAIN MODULE(+3db) then to an LO-MIXER that allows you to choose ANY CW PITCH and still keep the bandpass audio filtering bandwidth…
ContinueAdded by Chuck aa0hw on July 26, 2022 at 8:20am — 1 Comment
- a Pi4 has a usb sound card with LINE INPUT/line output/headphone output
- fldigi is keying a 555 square wave oscillator(by connecting pin 4 of the 555 to its POS RAIL through an H11F1 OPTOisolator chip) using FLdigi's KEY BY SERIAL PORT RTS PIN feature and sends its audio output to the pi's usb sound card's line…
ContinueAdded by Chuck aa0hw on July 25, 2022 at 9:09am — No Comments
this video demo's a RASPBERRY PI 4, SETUP as a high performance morse code practice oscillator using RECRI KEYER CW modules
https://github.com/recri/keyer
TEENSY-LC usb midi board with recri midi-keys embed firmware…
ContinueAdded by Chuck aa0hw on July 20, 2022 at 9:30am — 1 Comment
RECRI KEYER sdr modules from AD5DZ:
https://github.com/recri/keyer
SETUP:
a square wave from a TCL555 655 hertz oscillator is being keyed by FLdidi's serial port RTS PIN feature.... the 655hz SQUARE WAVE goes to the input of the sound…
ContinueAdded by Chuck aa0hw on July 20, 2022 at 7:56am — No Comments
testing out CARLA's plugin host, using an alsa USB sound card directly, on a Raspberry PI 4...also testing CARLA's experimental feature, 'ADD JACK APPLICATION' to include MUMBLE and a RECRI KEYER CW AUDIO BANDPASS FILTER into the CARLA CONNECTION BAY
FLdigi is keying a 555 square wave oscillator and sending into the PI's…
ContinueAdded by Chuck aa0hw on July 19, 2022 at 11:03am — No Comments
DEMO OF FLdigi QRQ CW sending at 80 wpm, using its SERIAL PORT RTS pin keying feature, keys an H11F1 fet opto isolator which keys a 555's (pin 4/pos) which sends its output square wave at @2600 hertz to the MIC INPUT of a laptop...which sends that 2600 555 square wave to the input of an AUDIO to MIDI app called TRIGGER MIDI MONO(TMM) TRIGGER…
ContinueAdded by Chuck aa0hw on July 19, 2022 at 9:12am — No Comments
KXstudio's CARLA
https://kx.studio/Applications:Carla
CARLA allows you to add a Gstreamer script in its JACK APPLICATION feature...then once the script is loaded, you can export the Gstreamer script as an LV2 plugin on Carla's RACK where it shows…
ContinueAdded by Chuck aa0hw on July 18, 2022 at 12:38pm — No Comments
USES a RADIO SHACK 3 way speaker crossover(woofer/BASS) that has added un-polarized electrolytic CAPs - to 'tune' it to peak signal at 700 hertz
REALISTIC 3-WAY UNIVERSAL CROSSOVER 40-1299…
ContinueAdded by Chuck aa0hw on July 11, 2022 at 10:46am — No Comments
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