A gathering place for QRQ ops world wide to share information and experience in pursuing QRQ cw
ALL TIME = USA CENTRAL TIME
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
QRQ CW TRANSMITTER & RECEIVER are both using HIGH Q resonant systems on their Ferrite Loopstick ANTENNAs
PROBLEM - HIGH Q will cause ringing and MUSH on the RECEIVE signal
SOLUTION - use a GATE between 2 CW AUDIO BANDPASS filters
Posted by Chuck aa0hw on May 16, 2022 at 10:10am
https://lsp-plug.in/?page=manuals§ion=trigger_midi_mono
https://github.com/recri/keyer
CW KEYER SETUP overview: 4 different 555 timer chip oscillators that have been set to…
ContinuePosted by Chuck aa0hw on May 10, 2022 at 10:47am
this video is a follow up video form the 1st one here:
this video demo's the QRQ CW high speed morse code capability
of this TTE COMMUNICATIONS SYSTEM at VLF…
ContinuePosted by Chuck aa0hw on April 25, 2022 at 1:10pm — 1 Comment
if you are using WEB SDR's to hear the other OP, and don't like the long delay, try setting up a local web sdr using the following video's method and the free STREAMMyAUDIO service...then you can simulcast your TRANSMIT CW SIDETONE to your headphones AND this free STREAMING SERVICE so that any other OP(s) can go to the web link on the STREAMmyAUDIO's LIVE web page and pick up your RIG's TRANSMIT CW audio in almost REAL TIME with very low delay... here is a LIVE demo of this setup in…
ContinuePosted by Chuck aa0hw on April 20, 2022 at 9:55am — 1 Comment
brief demo of sending QRQ CW via ULTRASONIC EMF using TWIN FERRITE BOBBIN CORE INDUCTOR COILs as the Ultrasonic EMF Emitters
Posted by Chuck aa0hw on April 19, 2022 at 1:29pm
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.
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.
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
Started by Gerd Groos. Last reply by Gerd Groos Jan 19, 2020.
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.
Does anyone know anything about A-TRONIX keyboards?Joe W3GWContinue
Started by Joe Oct 13, 2019.
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.
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.
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
Started by i8cee -Salvatore Cecere Oct 27, 2017.
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.
======================= 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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
HI guysIn the good old days there was a danish keyer called THE SQUEEZE KEYER.They did use it in the navy and army and it is almost Iambic B but with only one DIT memory.It should give you a better…Continue
Started by Hjalmar Skovholm Hansen May 27, 2015.
This project began life a bit before Hjalmar posted his Arduino decoder project. I had barely begun to migrate my keyer software to the ChipKit PIC32 boards (Max32 and Uno32) at that time. I…Continue
Started by Chuck Broadwell, W5UXH. Last reply by Chuck Broadwell, W5UXH Jun 30, 2016.
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