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

QRQ CW audio OVER ip test - 24 bit VS 32 bit - uncompressed audio over Ethernet

brief test of 24 bit VS 32 bit uncompressed audio going from a laptop to a Raspberry pi 2b loopback - and then right back to the laptop over Ethernet cables going through router and switches

32 bit has virtual no variance from the original audio source

24 bit does show a wide berth of harmonics generated at the lowest db…

Continue

Posted by Chuck aa0hw on January 26, 2020 at 7:39am

Elecraft K3 dead spots in the FULL QSK RECEIVE AUDIO when operating QRQ CW mode

NOTICE the DEAD ZONE in the following SCOPE view of sending a couple of 55 ms DITs... while trying to listen for how much QSK RECEIVE AUDIO is between those dits....NOTE:  you will see a GAP of "NO AUDIO" from phase cancellation due to the technique that the K3 firmware uses to try and get "more" QSK audio for the QRQ OP's 

the steady…

Continue

Posted by Chuck aa0hw on January 25, 2020 at 3:56pm

Gstreamer "audio OVER ip" for HAM RADIO - audiointerleave/deinterleave plugin examples for QRQ CW Remote Rig Operations

this video demoS using GSTREAMER's audiointerleave and deinterleave plugins for a Gstreamer OPUS CODEC AUDIO OVER IP remote rig audio operations use...

CONCEPT:

break the 2 channel audio over ip pipelines into 2 individual pathways that can contain their own individual Gstreamer audio DSP plugins...

in this case....2 different…

Continue

Posted by Chuck aa0hw on January 23, 2020 at 11:15am — 1 Comment

QRQ'n with the K1EL K40 CW Keyer(60 - 120 wpm) using a CW Keyer audio to EMF COIL PC interface

this is a follow up video to this one:

https://youtu.be/JPecQqQk85Q

the K1EL K40 CW KEYER's SPEAKER AUDIO OUTPUT is hooked directly to the Ferrite Bobbin Core Inductor Coil input...an EMF PICKUP COIL is right on top of the COIL(cheap telephone recording emf pickup coil)...connect the EMF…

Continue

Posted by Chuck aa0hw on January 20, 2020 at 3:00pm

Remote Rig QRQ CW setup using Gstreamer, Laptop & Raspberry PI::RIG interface - LIVE CW QSO demo

brief demo of operating QRQ CW remote rig operations using an ELECRAFT K3S, a Raspberry PI 2b, a remote LINUX LUBUNTU 18.04 LAPTOP, and using Gstreamer PIPELINES for several functions:

1. audio over ip to and from the PI::RIG interface - full duplex

2. cw audio bandpass filter for transmit

3. PTT activation tone bandpass filter for…

Continue

Posted by Chuck aa0hw on January 19, 2020 at 9:45am

 

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

Chuck aa0hw posted blog posts
18 hours ago
Chuck aa0hw commented on Chuck aa0hw's blog post Gstreamer "audio OVER ip" for HAM RADIO - audiointerleave/deinterleave plugin examples for QRQ CW Remote Rig Operations
"here is a LIVE real time video example of remote QRQ CW KEYING of an ELECRAFT K3S using the gstreamer interleave/deinterlave methods from the remote OPs linux laptop's AD5DZ CW KEYBOARD this is a follow up test of concept video from the first…"
Thursday
Chuck aa0hw posted a blog post

Gstreamer "audio OVER ip" for HAM RADIO - audiointerleave/deinterleave plugin examples for QRQ CW Remote Rig Operations

this video demoS using GSTREAMER's audiointerleave and deinterleave plugins for a Gstreamer OPUS CODEC AUDIO OVER IP remote rig audio operations use...CONCEPT:break the 2 channel audio over ip pipelines into 2 individual pathways that can contain their own individual Gstreamer audio DSP plugins...in this case....2 different Gstreamer CW AUDIO BANDPASS Filters...one BPF for a PTT tone at 5555 hz that is used to trigger the RIG's VOICE VOX PTT circuit...the other BPF is for the actual CW TONE at…See More
Thursday
Chuck aa0hw posted a blog post

QRQ'n with the K1EL K40 CW Keyer(60 - 120 wpm) using a CW Keyer audio to EMF COIL PC interface

this is a follow up video to this one: https://youtu.be/JPecQqQk85Qthe K1EL K40 CW KEYER's SPEAKER AUDIO OUTPUT is hooked directly to the Ferrite Bobbin Core Inductor Coil input...an EMF PICKUP COIL is right on top of the COIL(cheap telephone recording emf pickup coil)...connect the EMF PICKUP coil to one channel of the PC's MIC INPUT or LINE INPUT...use a simple Gstreamer coded CW AUDIO BANDPASS FILTER to get rid of the CW Keyer Speaker's raspy…See More
Jan 20
Chuck aa0hw posted a blog post

Remote Rig QRQ CW setup using Gstreamer, Laptop & Raspberry PI::RIG interface - LIVE CW QSO demo

brief demo of operating QRQ CW remote rig operations using an ELECRAFT K3S, a Raspberry PI 2b, a remote LINUX LUBUNTU 18.04 LAPTOP, and using Gstreamer PIPELINES for several functions: 1. audio over ip to and from the PI::RIG interface - full duplex 2. cw audio bandpass filter for transmit 3. PTT activation tone bandpass filter for transmit 4. 5 BAND EQ cw audio bandpass filter for receive 5. AUTOMATIC GAIN CONTROL and LIMITER for receive 6. RECEIVE NOTCH FILTER to take out the 5555 hz tone…See More
Jan 19
Gerd Groos replied to Gerd Groos's discussion QRQ CW on mobile phone: suitable MIDI soundfonts? Experiences?
"Thanks Chuck for all info. My initial approach to generate cw dots and dashes with timers and a sin oscillator tuened out not to be accurate enough for higher speeds. Using MIDI on IoS gave me accurate timing, but as said the AVMIDIPlayer (IoS core…"
Jan 19
Chuck aa0hw commented on Chuck aa0hw's blog post Key perfect QRQ CW on your ELECRAFT K3S from 100 to 200 wpm with the AD5DZ remote CW Keying system
"Here is a follow up video sending a TEXT FILE at 111 using the AD5DZ REMOTE CW KEYING system on the K3S brief demo of sending QRQ CW at 111 wpm from a text file to see how well the ELECRAFT K3S keys when using the AD5DZ REMOTE CW KEYING…"
Jan 17
Chuck aa0hw posted blog posts
Jan 17

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