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

QRQ CW NETs

ALL TIME =  USA CENTRAL TIME


Saturday:         3532   6 pm

Sunday:           3532   6 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

VLF-LF QRQ CW RF over ip - using an experimental REMOTE VLF-LF BAND Transmitter-Receiver server setup

brief demo of a REMOTE VLF-LF band transmitter/receiver with 9 QRQ CW ops present and sending CW

More details about the REMOTE VLF TRANSMITTER - REMOTE VLF ANTENNA here on playlist:…

Continue

Posted by Chuck aa0hw on March 18, 2020 at 2:43pm

20 Watt VLF QRQ CW transmitter(18.200 Khz) - AD5DZ CW Keyer, Audio Amp, 4 to 1 Balun, Delta Loop

Brief experimental setup using the AD5DZ CW KEYER, to directly send 18.200 Khz CW AUDIO to a 20 watt audio amp...from the audio amp output to a large BLUE IRON POWDER TOROID 4 to 1 balun - then to the input of a compact 21 foot long DELTA LOOP wire antenna with one leg of the delta loop connected to a series resonant capacitor(6uF)

This 4…

Continue

Posted by Chuck aa0hw on February 20, 2020 at 4:44pm

Narrow Band QRQ CW filter, 50 hz wide, 2 APP combo to get rid of ringing & howling - 50 wpm test

this is an experimental test setup to get rid of narrow band CW filter SEA SHELL BACKGROUND HOWLING, and QRQ CW Ringing...

by using a:



1. SIMPLE GATE

2. SIMPLE CW BANDPASS FILTER

the gate silences the "in between" cw element sea shell howling, and ringing, but also causes key clicks...

the following CW BANDPASS…

Continue

Posted by Chuck aa0hw on February 18, 2020 at 12:16pm

VLF Transmitter(delta loop) - VLF Receiver(Ferrite Core Bipolar Tesla Coil) - QRQ CW demo

brief demo of testing a VLF TRANSMITTER and VLF RECEIVER for QRQ CW operations

this is a follow up video to the first two using a VLF RECEIVE - BIPOLAR TESLA COIL with a FERRITE CORE antenna...the Transmitter is a tiny DELTA LOOP(7 foot per side) fed by a 5 watt audio amp…

Continue

Posted by Chuck aa0hw on February 16, 2020 at 2:19pm

Windows 10 laptop, transmitting @ 8 Khz on VLF band, QRQ CW @80 wpm - Received on Linux Laptop using SAQrx SDR RCVR

this is a follow up video to the first one:

https://youtu.be/ON-tZWiCCPQ...

everything is the same in this video, except, this time we send QRQ CW at 80 wpm to test how it will sound over VLF and using SAQrx by itself - using its 300 hz wide bandpass filter - centered at 700 hz

and with…

Continue

Posted by Chuck aa0hw on February 14, 2020 at 12:43pm — 1 Comment

 

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

Useful Software for Amateur Radio from FabulaTech:

Virtual Serial Port Kit

Virtual Serial Port

Virtual Serial Port Kit -

create virtual serial ports connected via a virtual null-modem cable.

Serial Port Splitter

COM Port Splitter

Serial Port Splitter -

share dataflow of one serial port among several applications.

Network Serial Port Kit

COM Port over Ethernet

Network Serial Port Kit -

access remote serial devices over local network or the Internet.

USB over Network

USB over Ethernet

USB over Network -

share and access USB devices over local network or the Internet.

 

CONTACT:  sales@fabulatech.com

NOTE: A special provision has been made available by FABULTECH to official ham radio operators.  See this article for more details about this incredible offer:

http://qrqcwnet.ning.com/forum/topics/useful-software-for-amateur-radio-from-fabulatech

FREE webRTC APP - for morse code qso with up to 4 cw ops - just using your browser

Invite a friend(s) to join you at this link and have a morse code qso with them

All you have to do is produce a nice sidetone, and run an audio cable from it to the MIC INPUT or LINE INPUT of your soundcard.  

When you click on this link it will ask your permission to use your MIC, say YES and start sending morse

https://appear.in/qrqcw

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

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.

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.

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 3 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 Aug 6, 2015.

The Squeeze keyer

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.

Combined Keyer / Keyboard / Decoder 8 Replies

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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Latest Activity

Marc Veeneman updated their profile
Mar 21
Chuck aa0hw commented on Chuck aa0hw's page AUDIO RECORDINGS OF QRQ CW NETs
"Here is a new method for QRQ CW copy practice using a FLAC FILE recording of actual RF LF BAND QRQ CW signals and be able to scan the band and pick and choose which signal to listen to using an SDR APP...this FLAC FILE has 12 QRQ CW signals on it…"
Mar 20
Chuck aa0hw posted a blog post

VLF-LF QRQ CW RF over ip - using an experimental REMOTE VLF-LF BAND Transmitter-Receiver server setup

brief demo of a REMOTE VLF-LF band transmitter/receiver with 9 QRQ CW ops present and sending CWMore details about the REMOTE VLF TRANSMITTER - REMOTE VLF ANTENNA here on playlist:See More
Mar 18
Chuck aa0hw commented on Chuck aa0hw's page AUDIO RECORDINGS OF QRQ CW NETs
"Here is a live off the air recording of a QRQ CW NET that took place on 80 meters on 2-29-2020 QRQ CW qso on 80 meters recorded LIVE off the air, from an ELECRAFT K3S on 2-1-2020 via REMOTE RIG - 17.555 Khz VLF TRANSMITTER, VLF RECEIVER SDR on…"
Feb 29
Chuck aa0hw posted a blog post

20 Watt VLF QRQ CW transmitter(18.200 Khz) - AD5DZ CW Keyer, Audio Amp, 4 to 1 Balun, Delta Loop

Brief experimental setup using the AD5DZ CW KEYER, to directly send 18.200 Khz CW AUDIO to a 20 watt audio amp...from the audio amp output to a large BLUE IRON POWDER TOROID 4 to 1 balun - then to the input of a compact 21 foot long DELTA LOOP wire antenna with one leg of the delta loop connected to a series resonant capacitor(6uF)This 4 to 1 balun and the size and material of the blue iron powder toroid, made a massive difference in transferring almost all of the 20 watts max that that this…See More
Feb 20
Ron Smith updated their profile
Feb 19
Chuck aa0hw posted a blog post

Narrow Band QRQ CW filter, 50 hz wide, 2 APP combo to get rid of ringing & howling - 50 wpm test

this is an experimental test setup to get rid of narrow band CW filter SEA SHELL BACKGROUND HOWLING, and QRQ CW Ringing... by using a: 1. SIMPLE GATE2. SIMPLE CW BANDPASS FILTERthe gate silences the "in between" cw element sea shell howling, and ringing, but also causes key clicks...the following CW BANDPASS FILTER(adjustable Q) gets rid of the GATE's key clickshttps://calf-studio-gear.org/the setup was using a VLF CW TRANSMITTER & VLF…See More
Feb 18
Krister Nordström updated their profile
Feb 17

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