A gathering place for QRQ ops world wide to share information and experience in pursuing QRQ cw

QRQ CW NETs

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daily on    7018   4 pm

NOTE: if you have a QRQcw NET or know of one, please tell us about it, and we will post it here

Blog Posts

QRQ CW Receive using a HIGH Q FILTER - too much ringing? elongated CW elements? - try using a DE-Qer

demo uses TRIGGER MIDI MONO as a DE-Qer

TRIGGER MIDI MONO analyzes the input volume peaks of the HIGH Q CW elements then sends out a MIDI NOTE on/off message to a software midi input CW KEYER app like RECRI KEYER - https://github.com/recri/keyer (or…

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Posted by Chuck aa0hw on November 18, 2022 at 9:56am

3CX for Morse Code OPs to qso over WEBrtc for FREE - up to 25 participants

3CX

FREE VIDEO CONFERENCING

NO TIME OR USER LIMITS

FULL DUPLEX

Easy. No downloads or accounts Simple to create, host and join a meeting. Attendees join from their browser. No app required. We never ask your attendees to create an account or give out details.…

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Posted by Chuck aa0hw on November 16, 2022 at 8:27am

CW Transmitter - save even MORE battery power using Pulse Width Modulated CW: LIVE demo of the setup

instead of sending a solid keydown of dits & dahs... when you key down using this method, only the smallest possible pulse width of the minimalist pulses per CW ELEMENT train, at the CW RF frequency of interest, is sent... saving battery power since the PWM key down is a tiny percentage of battery current/power being used when compared…

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Posted by Chuck aa0hw on November 15, 2022 at 9:37am — 2 Comments

QRQ CW ULF band "high Q" antenna Transmitter & Receiver: test a DE-Q'r APP to get rid of the ringing

THE zamgate PLUGIN, in sidechain mode, does the DE-Q'n

https://www.zamaudio.com/

ZAMGATE analyzes/measures the incoming high q wavefront of the QRQ CW and regenerates a NEW QRQ CW Note with adjustable weight and rise/fall times

Posted by Chuck aa0hw on November 13, 2022 at 6:48pm

Tuned Bipoloar Tesla Coil with FERRITE CORE for a QRQ CW 16Khz VLF Band Transmit Antenna - LIVE DEMO

The tuning of the biploar tesla coil for 16Khz is quite sharp but dramatically increases the transmitter signal antenna output - the RX ferrite antenna is also tuned by a parallel cap (TRANSMITTER is a Linux laptop, RECEIVER Is a pi4) both antennas are using SOUND CARD SDR software modules from RECRI KEYER... to be able to send and receive…

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Posted by Chuck aa0hw on November 11, 2022 at 11:30am

 

WELCOME TO QRQcw

Please feel free to start any QRQcw topics or leave comments for the discussions already posted. You may also load pictures or videos relating to qrq cw operations. Thank you for your contributions.

N3ZNkeys.com website - see all of his latest CW KEYS

iCW - 2012 - How to send morse code over the internet on WINDOWS 7 : THE BASIC SETUP

LIVE RECORDING of a QRQ CW QSO - MORSE CODE OVER THE INTERNET - from 2009

Using Mumble( open source skype like voip program )and FLdigi to communicate morse code over the internet. LIVE RECORDING from 2009. [ Missouri to Michigan internet path ]

SETUP: using a virtual audio cable, we connect the output of FLDIGI to the input of MUMBLE. We both connect to a MUMBLE SERVER and instead of using MICROPHONES, we send morse code audio tones at high quality, high fidelity, and low latency, to each other. The audio is FULL DUPLEX and allows for good QSK response during the conversation for breaking in.

Forum

Morse Code Training - Ditto CW Player by WB1LLY

Hello,recently I updated my page on Morse Code training   https://www.qsl.net/df7tv/morse-code-training.htmlA major change has been,…Continue

Started by Thomas MARTIN Oct 27.

QRQ net streaming 1 Reply

Now streaming / archiving the twice daily CRSnet skeds at Stream my audio . Click on archive if a sked is not in progress. Steve, WF3TContinue

Started by Steve Steltzer. Last reply by Chuck aa0hw Jun 24.

QRQ CW on mobile phone: suitable MIDI soundfonts? Experiences? 2 Replies

Hello all,As a fun project I was writing a CW player for my Iphone over Christmas. A text file is converted to MIDI, MIDI is played out as audio on the Iphone. I am using Apple's MIDI player…Continue

Tags: Soundfont, IoS, MIDI

Started by Gerd Groos. Last reply by Gerd Groos Jan 19, 2020.

Regenerative CW 3 Replies

Hi,I read with interest Joe KF7CX article about regenarative CW.I struggled a little bit to find out all about circuitry, but finally I think i have a good idea of how to build a complete interface.I…Continue

Started by F6EEQ. Last reply by F6EEQ Jan 2, 2020.

A-TRONIX Keyboards

Does anyone know anything about A-TRONIX keyboards?Joe W3GWContinue

Started by Joe Oct 13, 2019.

Wanted: proper AZERTY keyboard setting 2 Replies

In order to properly exercise, the standard keyboard should be altered.I am using a belgian AZERTY keyboard with the QRQ Application. (OS is Ubuntu 18.04.1)In order to type numbers I need to access…Continue

Started by Michel Spelier. Last reply by Michel Spelier Sep 14, 2018.

TAKE THE QRQ CW TEST - Which is better to copy - LINEAR or EXPONENTIAL raised cosine edges

an A / B test between Linear and Exponential QRQ CW audio tone waveformsWhich waveform do you think sounds best ?SETUP for this test: FLdigi is sending a text file at 71 wpm from TOM's famous article…Continue

Tags: morse code, raised cosine, QRQcw, qrq cw

Started by Chuck aa0hw Dec 8, 2017.

Tahrpup 6.0.6 live dvd remaster by i8cee full ham radio iCW for ever.....

Hi guys,my personal remaster of tahrpup  6.0.6 live cd now full ham radio software digital mode,  last qsstv , qtel(echolink),  wsjtx ft8 mode and of course iCW full working using fldigi keyboard,…Continue

Tags: software, digital

Started by i8cee -Salvatore Cecere Oct 27, 2017.

Get on the Air

I have enjoyed the recordings Chuck has made of the on the air QSOs of my fellow QRQ ops.Lets get more of you on the air with your keyboards. Many of us do not have internet connections that allow…Continue

Started by Joe Oct 10, 2017.

CW Code Sound plus Character Sound

======================= 00000000000000000000000 =====================I made all new files, this time .mp4 video files (punctuation and prosigns coming up). Added already.I hope these files help to…Continue

Started by Carlos (Kal) Lemmi Feb 5, 2017.

SDR online network

There is an interesting network of wideband receivers with close to 100 different sites that can be used for tuning the bands around the world.  HA7ILM,  András Retzler, operates a web site that…Continue

Started by Chuck Broadwell, W5UXH Dec 28, 2016.

QRQ on the Air 1 Reply

I have been keeping on the air skeds with some old masters of QRQ for a while. I would encourage anyone interested in QRQ to get on the air with a like minded soul. While I do use my mp3 files and…Continue

Started by Joe. Last reply by Rich Langford Nov 29, 2016.

CW Letter Groups 1 Reply

I made this list of 97 common letter groups as an aid for learning mind copying.I appreciate your comments.CW Letter Groups…Continue

Tags: learning-cw, cw-mind-reading

Started by Carlos (Kal) Lemmi. Last reply by Joe Nov 16, 2016.

Ben Russell, N6SL, SK

I have sad news. Ben Russell, N6SL, passed away last week after a short illness. Ben was a devoted CW operator and a member of this group. He and I kept a sked for many decades using our old…Continue

Started by Joe Jun 9, 2016.

Video with text display of QRQ QSO: W5UXH - K6KX 1 Reply

I made a screen recording of a qso to demonstrate the serial interface between keyer / decoder of my ChipKit / PIC32 keyer.  Both sides of the qso are displayed.  The keyer switches the text color to…Continue

Started by Chuck Broadwell, W5UXH. Last reply by Joe May 11, 2016.

Join the new skype group

https://join.skype.com/j0gEQRAWuRMgWe have created a skype group where we can chat about where to find a qrq cw fellow to chat with on the band…Continue

Started by Hjalmar Skovholm Hansen Feb 22, 2016.

QSK linear amps... 1 Reply

Hi,hope it is no off-topic so much...Does anybody know if PA1000 amplifier from Juma has fully working, smooth QSK able to operate at QRQ please?I will be happy for comments and experiences from…Continue

Started by Petr Ourednik. Last reply by Joe Jan 16, 2016.

HNY2016 from OK1RP

Hi all,I wish the best, healthy, happy and prosperous New Year 2016! See you on the air CW quite often... Best 73 to all friends.Petr, OK1RPContinue

Started by Petr Ourednik Jan 1, 2016.

The "Crowing Rooster” CW QSO ending 8 Replies

Hi all,This is my 1st post here so I hope I'm doing this right...After looking on the internet for this subject with no luck, I crossed an email with an well known american veteran CW operator (his…Continue

Started by Artur Marcal. Last reply by Artur Marcal Apr 19, 2016.

DZKIT Sienna at 70 WPM 7 Replies

A few years ago I built a Sienna for K6KX (Fred), a long story that I will not go into.The past few days Fred has been testing it on our sked.  Tonight I did a recording that can be downloaded from…Continue

Started by Chuck Broadwell, W5UXH. Last reply by Chuck Broadwell, W5UXH Jun 23, 2020.

 
 
 

Latest Activity

Anne Dirkman was featured
Sunday
Anne Dirkman is now a member of QRQcw
Sunday
Imre Forro KV1I updated their profile
Saturday
Imre Forro KV1I posted a photo
Nov 20
Chuck aa0hw posted a blog post

QRQ CW Receive using a HIGH Q FILTER - too much ringing? elongated CW elements? - try using a DE-Qer

demo uses TRIGGER MIDI MONO as a DE-QerTRIGGER MIDI MONO analyzes the input volume peaks of the HIGH Q CW elements then sends out a MIDI NOTE on/off message to a software midi input CW KEYER app like RECRI KEYER - https://github.com/recri/keyer (or sine wave midi synthesizer app like AMSynth) https://amsynth.github.io/See More
Nov 18
Chuck aa0hw commented on Chuck aa0hw's blog post CW Transmitter - save even MORE battery power using Pulse Width Modulated CW: LIVE demo of the setup
"1st HF TEST on 80 meters for PWM-CW mode(pulse width modulation CW) 1st test using an SDR WEB RECEIVER with a PWM CW Transmitter this video is a follow up from the 1st two videos…"
Nov 16
Chuck aa0hw posted blog posts
Nov 16
Chuck aa0hw commented on Chuck aa0hw's blog post CW Transmitter - save even MORE battery power using Pulse Width Modulated CW: LIVE demo of the setup
"Pi 4, Through the earth, VLF band, 17Khz, Pulse Width Modulated CW Transmitter - saves battery power using Pulse Width Modulated CW to save battery power for a "THROUGH THE EARTH", CW VLF 'underground cave to surface'…"
Nov 15

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