The CW RE-Keyer System

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Last updated
1:55
CW over IP: by low bandwidth perfectly timed & cloned CW keying element length duration data packets
By QRQcw
  • 43 views
3:58
Continuous Wave Time-stamped Internet Protocol(CWTIP) - udp sockets over ip for QSO CW over INTERNET
By QRQcw
  • 146 views
2:41
CW KBD QSO over ip using ascii2cw encoded tiny packets - RECEIVER takes ascii - converts to CW audio
By QRQcw
  • 49 views
3:21
DiY CW REGENERATION APP - converts YPLog's R/C exponential poor QRQ CW tones into ideal Kaiser edges
By QRQcw
  • 68 views
2:12
DiY C++ APP to regenerate any kind of CW audio tone input and clone, 'ideal' shaped CW audio outputs
By QRQcw
  • 44 views
3:03
VLF CW REGENeration METHOD using Zamgate, sine wave oscillator and 2 bandpass filters
By QRQcw
  • 20 views
0:46
Raspberry Pi 4 Pulse Density Modulated CW Transmitter for THROUGH THE EARTH Cave Radio Comms at 8Khz
By QRQcw
  • 154 views
4:29
QRQ CW COPY software method for adjusting the OTHER OP's LiGHT or HEAVY keying & their CW PiTCH
By QRQcw
  • 135 views
1:46
DiY CAVE RADIO 7kHZ VLF Transmitter & Receiver - using Pulse Density Modulated CW for Text Messaging
By QRQcw
  • 228 views
5:31
DiY Pulse Density Modulated CW VLF Transmitter & Receiver DEMO(7Khz)
By QRQcw
  • 102 views
1:41
DiY Pulse Density Modulated 5Khz VLF CW Transmitter - LIVE demo
By QRQcw
  • 177 views
2:41
VLF TX ANTENNA using an EXTENSiON CORD COiL(Trifilar Wound)Transmitter=Capacitive Discharge Circuit
By QRQcw
  • 197 views
4:21
JackTrip HUB Server on an ancient pi2b for Morse Code over iP QSO between multiple OPs - QRQ example
By QRQcw
  • 158 views
2:11
Pulse Density Modulated HV VLF CW Transmitter - LAPTOP CONTROLLER to HV Capacitive Discharge Circuit
By QRQcw
  • 186 views
0:50
VLF CW over MUMBLE - demo of 2 ops sending rEvErSe iMaGe interrupt CW MODE: 375hz & 1055hz
By QRQcw
  • 100 views
4:13
Pulse Density Modulated VLF CW Transmitter controlled by sound card for TX power & pulses per second
By QRQcw
  • 140 views
2:19
VLF CW over MUMBLE: 10 CW OPs sending at a diff VLF freq - RX APPs convert each VLF to its own audio
By QRQcw
  • 96 views
2:29
Morse Code over Mumble rEvErSe iMaGe CW by interrupting a sine sweep carrier: CW elements of silence
By QRQcw
  • 110 views
6:07
QRQ CW Harsh Square Wave converted to Pure Sine Wave RAiSED COSiNE edges in less than 1 millisecond
By QRQcw
  • 166 views
2:46
Pulse Density Modulated VLF CW Transmitter @QRQ speed using a 600 Watt Ferrite Core Coil Antenna
By QRQcw
  • 160 views
2:49
Through the Earth Signal Communication using Pulse Density CW Modulation BY inductive BACK EMF SPiKE
By QRQcw
  • 122 views
4:10
CW VLF 18kHZ Transmitter by Pulse Density Modulation, Capacitive Discharge into EMiTTER COiL Antenna
By QRQcw
  • 144 views
4:46
Pulse Density Modulation Morse Code, TRANSMIT & RECEIVE demo on LF band @64Khz - saves BATTERY DRAIN
By QRQcw
  • 94 views
2:03
Morse Code audio over Mumble: using rEvErSe iMaGe CW mode via ArtyFX's plugin Ducka for better audio
By QRQcw
  • 106 views
2:54
FERRiTE CW TRANSMiT ANTENNA using 600 watt FERRiTE BOBBiN CORE INDUCTOR COiL on the LF band @ 65Khz
By QRQcw
  • 125 views
6:48
FERRiTE ROD VLF CW TRANSMIT ANTENNA, tuned, resonant at 4Khz, keyed by NPN @100μS pulse width bursts
By QRQcw
  • 157 views
1:37
testing a CW TUNED SPARK GAP Transmit FERRiTE ANTENNA resonant at 50Khz - Pulse Density Modulated CW
By QRQcw
  • 160 views
3:30
QRQcw experiment in high "Q" systems to adapt to low power Transmit DiTs due to high Rise/Fall times
By QRQcw
  • 109 views
3:42
Interrupt Modulated(IM) CW Mode - Live demo on the HF band
By QRQcw
  • 113 views
4:38
Interrupt Modulated(IM) QRQ CW Mode - Live demo on the VLF band
By QRQcw
  • 97 views
3:09
Interrupt Modulated(IM) CW Mode - Live demo on the VLF band
By QRQcw
  • 27 views
7:44
Pulse Density Modulated CW to save battery drain on the RF final AMP - uses a custom pulse generator
By QRQcw
  • 61 views
2:13
rEvErSe iMaGe CW mode FiGHTS BACK against packet loss during an OPUS CW AUDIO over iP Morse Code QSO
By QRQcw
  • 140 views
0:54
Pulse Density Modulated CW by HV CAPACiTIVE DiSCHARGE Transmitter into diy PULSE Ferrite Rod Antenna
By QRQcw
  • 85 views
5:48
Pulse Density Modulated CW, 50 μS pulse every 30ms for duration of each CW ELEMENT, VLF band example
By QRQcw
  • 76 views
2:23
555 harsh raspy square wave CPO output to PURE SINE WAVE shaped CW NOTE output CONVERTER: REAPER DAW
By QRQcw
  • 121 views
2:55
Twin Coil Ferrite Rod SLF Transmit Antenna for Through The Earth COMMs - 100hz rEvErSe iMaGe CW mode
By QRQcw
  • 224 views
3:52
rEvErSe iMaGe CW MODE(riCM) through High Q, tuned, resonant, Ferrite Rod Antennas: over the VLF band
By QRQcw
  • 62 views
2:05
rEvErSe iMaGe CW MODE for Ultra Low bitrate CW aoiP by amr-nb codec - virtually perfect RX CW notes
By QRQcw
  • 102 views
1:47
rEvErSe iMaGe CW MODE - CW ELEMENTS OF SiLENCE - embedded into a pilot tone carrier wave for CW/aOiP
By QRQcw
  • 57 views
3:34
reVerse iMAGE CW digital Mode - reduce ur Transmit bandwidth by at least half
By QRQcw
  • 44 views
0:58
CW iambic KEYER by soundcard, 2 audio transformers & FREE software
By QRQcw
  • 99 views
0:53
usE a FERRiTE TOROiD stepUP Transformer with a 32Khz sinewave to interface your Straight Key T UR PC
By QRQcw
  • 112 views
1:06
FSM carrier for a Morse Code 'touch' iambic PADDLE - heal your hand with microCURRENT while paddling
By QRQcw
  • 43 views
5:28
use Reverse Image CW method for super low bit rate OPUS CODEC audio over ip on the mumble iCW server
By QRQcw
  • 87 views
6:18
Hi Q, tuned, resonant, FERRiTE ROD TRANSMiT VLF ANTENNA for TX'n QRQ CW by a 'key'D square wave
By QRQcw
  • 74 views
2:25
Save Battery Power on final RF Transmit AMP, by reducing CW elements by 30ms; replace 30ms on RX app
By QRQcw
  • 134 views
4:37
VLF CW soundcard SDR Transmitter & Receiver: TX uses square Wave PulseGen APP; RX uses CW Regen APP
By QRQcw
  • 178 views
4:08
QRQ CW TX/|\RX high Q resonant VLF FERRiTE ROD antennas - how to combat ringing & element elongation
By QRQcw
  • 69 views
4:39
High Q Large Ferrite Rod Pulse Transformer as a TRANSMiT FERRiTE Antenna for Through The Earth COMMs
By QRQcw
  • 104 views
2:13
Encrypted Tunnel-in-a-Tunnel by Zerotier & Wireguard, plus Obfuscation methods for a p2p secure chat
By QRQcw
  • 245 views
2:54
Pulse Density Modulated CW(PDM-CW) Generator by chatGPT C CODE - Live DEMO @30wpm
By QRQcw
  • 84 views
4:28
Pulse Density Modulated CW(PDM-CW) by CW KEYBOARD sending binaural beats via 2 sine wave oscillators
By QRQcw
  • 87 views
1:40
ELF through VLF UNiVERSAL Frequency CONVERTER to Morse Code AUDiO: by STEVE HARRiS's DiODE PROCESSOR
By QRQcw
  • 259 views
2:36
EXTREME NARROW BAND CW, even at QRQ, does not take up any more bandwidth than UNmodulated RF CARRIER
By QRQcw
  • 258 views
8:39
PULSE DENSITY MODULATED CW Transmitter & Receiver(ULF Band 2.6Khz) DEMO of sound card SDR apps used
By QRQcw
  • 67 views
3:31
Direct Conversion of ULF BAND CW signal from 2.6Khz to 750hz with 2 plugins ZAMGATE & SINE GENERATOR
By QRQcw
  • 59 views
5:07
use PULSE DENSITY MODULATION to save Battery Power on ULF BAND Cave To Surface Radio CW Transmitter
By QRQcw
  • 59 views
6:45
TX CW using sinewave TiCs(1 tic/60ms)(551 hz) Saves battery power on CAVE - SURFACE ULF TRANSMiTTER
By QRQcw
  • 98 views
2:07
processing the RECEiVE SiGNAL from an SLF BAND, 144hz, soundcard sdr CW RECEIVER using audio plugins
By QRQcw
  • 65 views
1:45
Dual Band(ULF & VLF)full duplex ENB-CW soundcard SDR Transceivers with high Q dual resonant antennas
By QRQcw
  • 71 views
1:45
Raspberry Pi4 VLF Receiver decoding a 22kHZ VLF Carrier SiGNAL with micro-embedded CW Keying data
By QRQcw
  • 170 views
2:01
soundcard SDR ULF BAND 1Khz CW Morse Code Radio Beacon - only 1 sine wave cycle of 1Khz every second
By QRQcw
  • 97 views
1:12
Pulse Density Modulated CAPACiTiVE DiSCHARGE CW by Tuned Resonant VLF FERRiTE CORE TRANSMiT ANTENNA
By QRQcw
  • 71 views
8:14
Pulse Density Modulated CW - VLF BAND @ 3kHZ - a 1ms pulse every 40ms for the duration of CW element
By QRQcw
  • 73 views
1:33
Pulse Density Modulated CW Transmitter(8kHZ) ON TIME = 1ms for every 20ms for duration of CW ELEMENT
By QRQcw
  • 72 views
6:00
Schumann Resonance Generator modified to pulse EMF with embedded TEXT data at 40 hertz audible beats
By QRQcw
  • 110 views
2:38
12 hertz, ELF, EMF, ENB-CW, QRQ Transmitter & Receiver: LIVE demo of an EXTREME NARROW BAND CW radio
By QRQcw
  • 188 views
1:55
iAmBic & Straight Key CW KEYERs by 2 TLC551 oscillators, both running off the MiC JACKs power supply
By QRQcw
  • 126 views
0:46
Raspberry Pi iAmbic CW Keyer: TLC551 OSC., PADDLES, PI4, TriggerMidiMono & Recri Keyer miDi CW kEYER
By QRQcw
  • 104 views
2:16
key TLC551 Timer Chip CPO - REAPER PLUGins analyze & regenerate TLC551 square wave to pure sine wave
By QRQcw
  • 63 views
2:39
QRQ CW on VLF band @5Khz @75wpm: alternative RX method using a soundcard SDR and HiGH "Q" antennas
By QRQcw
  • 79 views
3:20
iambic midi input CW KEYER using a TLC551 with REAGATE VSTs instead of using a TEENSY USB MiDi Board
By QRQcw
  • 135 views
1:13
keyed Morse Code CPO using a TLC551 Timer Chip powered only by a MIC JACK's power supply(works @ 1v)
By QRQcw
  • 212 views
1:55
Pulse Density Modulated QRQ CW test @80wpm on the ULF BAND through high Q, resonant Ferrite Antennas
By QRQcw
  • 45 views
5:30
Pulse Density Modulated ULF CW through high Q tuned FERRiTE ROD LOOPSTiCK TX/RX antennas: live demo
By QRQcw
  • 57 views
2:37
get rid of HIGH Q Ringing on QRQ CW by using a LiMiTER & CW Regenerator
By QRQcw
  • 50 views
6:06
Pulse Density Modulated CW(PDM-CW){ one .5ms pulse every 10ms} use ZAMGATE encoder/decoder for TX/RX
By QRQcw
  • 137 views
2:31
Pulse Density Modulated VLF CW - by combining & sending, 2 vincinal VLF RF Frequency TONEs together
By QRQcw
  • 52 views
2:21
sending QRQ CW over iP on LF BAND using CW notes made of 8Khz wide, white & violet noise CW elements
By QRQcw
  • 114 views
0:53
Mumble Voice Chat HD audio 10Khz LSB VOiCE & 16Khz - 20Khz 'WHITE NOISE' QRQ CW: utilize VLF BAND/iP
By QRQcw
  • 116 views
1:12
CW KEYER SQUARE WAVE output converted to SHAPED SiNE WAVE output by LSP SiDECHAiN & LSP OSCiLLATOR
By QRQcw
  • 60 views
6:04
VLF QRQ CW RX signal gets direct conversion to CW AUDIO by LSP Sine Wave Oscillator & Sidechain Gate
By QRQcw
  • 77 views
1:57
VLF QRQ CW direct conversion to CW AUDIO by 2 VST PLUGINs, SINEcw & REAGATE
By QRQcw
  • 51 views
1:39
VLF ENB-CW FLdigi decoder @180 wpm, working within high Q, resonant, TX/RX FERRITE CORE antennas
By QRQcw
  • 75 views
1:12
82 hertz ELF - if its good for Submarines, is it good for THROUGH THE EARTH CAVE to SURFACE COMMs ?
By QRQcw
  • 273 views
6:35
High "Q" 'Tuned' Large Ferrite Rods VLF Transmit Antenna for PULSE DENSiTY MODULATiON CW MODE keying
By QRQcw
  • 175 views
2:47
ZAMGATE QRQ CW WAVEshape Restorer - fixes problem of narrow band high Q CW filter RiNGing/distortion
By QRQcw
  • 51 views
1:38
add monitoring of the FLDigi original sidetone to the 21Khz Gstreamer Script - LiVE DEMO
By QRQcw
  • 9 views
3:58
FLdigi VLF CW Transmitter(21Khz) on a Raspberry pi4 using its own analog headphone jack & Gstreamer
By QRQcw
  • 88 views
5:18
sending multiple ascii TEXT FiLEs over VLF: 7 streams, 200hz apart, centered at 21Khz by ENB-CW mode
By QRQcw
  • 48 views
1:31
HAM RADIO - QPSK31 vs ENB-CW mode - LiVE side by side test
By QRQcw
  • 75 views
1:29
unixCW sending CW @30kHZ on VLF BAND using ALSA LOOPBACK cables - TX/RX demo using FERRiTE ANTENNAS
By QRQcw
  • 49 views
2:29
Pulse Density Modulation battery powered 30Khz CW VLF Transmitter - 1/10th power drain of A1-MODE CW
By QRQcw
  • 64 views
6:08
Pulse Density Modulated HF CW Transmitter/afcw mode\ {Saves Battery Power !} for portable operations
By QRQcw
  • 54 views
7:16
using GASSiAN NOiSE CW notes for sending Morse Code over iCW on Mumble - CW regenerated on mumble RX
By QRQcw
  • 84 views
3:13
NETJACK - AOiP - REMOTE RIG operations for CW - using AFCW MODE to key the RIG - uses Raspberry pi2b
By QRQcw
  • 75 views
4:29
NETJACK - Midi over iP on a PRIVATE ZEROtier Network - Morse Code Midi CW KEYER example demonstrated
By QRQcw
  • 119 views
1:31
DOS QRQ CW KEYBOARD APP // CW MAESTRO \\ works better using DOSBox-X - LIVE DEMO
By QRQcw
  • 104 views
3:14
Stealth 'hidden' text message data Encryption encoded/decoded onto/from a 3kHZ VLF RF CARRIER wave
By QRQcw
  • 105 views