Chuck aa0hw

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Chuck aa0hw posted a blog post

Build your own high performance software QRQ CW AUDIO FILTER - using 4 FILTA LV2 modules in series

FILTA LV2 PLUGINS - http://openavproductions.com/doc/artyfx.htmlNOTE:  The delay from start to finish - going through 4 instances of FILTA LV2 cw audio filter modules, being connected in series, measured to be only 2.5 millisecondsfor this DEMO, a VLF CW signal at 16Khz was captured at the laptop's MIC INPUT jack from its antenna connection to a FERRITE LOOPSTICK ANTENNA - then the 16Khz signal was sent directly to ZAMGATE's sidechain…See More
Feb 8
Chuck aa0hw commented on Chuck aa0hw's blog post QRQ CW over 100 wpm - tips, techniques and specialized QRQcw GEAR
"Here is another video example of  QRQ CW over 100 wpm -  this video tests a REMOTE PI CW TRANSMITTER at 200 wpm - to test and see how it would key CW at that high speed this video CW keying test runs at 200 wpm - and is using the same…"
Feb 4
Chuck aa0hw commented on Chuck aa0hw's blog post Raspberry PI remote VLF RF over IP Rcvr::RE-Transmitter - Local PC SDR VLF Receiver - QRQ CW example
"Here is a 2nd video showing pictures of the HARDWARE used for QRQ CW VLF RF OPERATIONS This video shows a Raspberry pi2b being setup to act as an... - 18Khz CW VLF RF over IP receiver - RE-transmitter - Gstreamer scripts are used to provide the…"
Feb 4
Chuck aa0hw posted a blog post

Raspberry PI remote VLF RF over IP Rcvr::RE-Transmitter - Local PC SDR VLF Receiver - QRQ CW example

experimental setup to QSO QRQ CW at 18Khz VLF RF over ip - using a PEER to PEER Gstreamer PIPELINE TCP/ip setup and a Raspberry PI as a REMOTE VLF RX/ RE-TRANSMITTERa PI2B is setup to RECEIVE another OP's VLF RF over IP transmission(CW at 18Khz) using a Gstreamer rtp TCP/ip PIPELINE - using the WAVPACK CODEC...the PI2b decodes the WAVPACK 18Khz CW and sends it out its own audio jack to a 30 watt audio amp...the output of the audio amp goes to a 9/1 Balun, the output of the 9/1 balun goes to a…See More
Feb 1
Chuck aa0hw posted a blog post

sending QRQ CW over IP over MIDI using ASEQNET TCP/IP - 80 wpm test - Linux Laptop to a Raspberry PI

test to see how stable the CW TIMING is at QRQ CW speed * 80 wpm * when using ASEQNET server/CLIENT setup midi over tcp/iphttp://ccrma.stanford.edu/planetccrma/man/man1/aseqnet.1.htmla MIDI CW KEYBOARD is used as the CW MIDI device from RECRI KEYERhttps://github.com/recri/keyerthe PI2 takes what it receives, midi data over ip from the laptop, and keys CW out at 18Khz to an…See More
Jan 30
Chuck aa0hw commented on Chuck aa0hw's blog post QRQ CW over 100 wpm - tips, techniques and specialized QRQcw GEAR
"Here is another video example of REMOTE keying of an ELECRAFT K3S at 131 wpm and receiving the RIG AUDIO over a 2nd transmitter - a ULF BAND TRANSMITTER operating at 2.5Khz demo of SENDING and RECEIVING a QRQ CW TRANSMITTER on the ULF BAND AT 2.5…"
Jan 26
Chuck aa0hw posted a blog post

ULF BAND Receive Ferrite Core Loopstick Antenna for SOUND CARD INPUT - LIVE DEMO with QRQ CW example

brief rundown of using a large FERRITE CORE LOOPSTICK tuned ANTENNA to hook up directly to the sound card input...and then use some SDR software modules to get rid of HUM, NOISE, HISS and other EMF QRM from the house wiring emf'N into the RX antenna etc...the ULF CW TRANSMITTER is a PI 4's audio output - going to a 30 watt audio amp - going to a 4 to 1 iron powder toroid - going to a 40 foot wire loop antenna the SDR MODULESRECEIVE PATHWAY:1. at MIC JACK INPUT first - is a 2500 hz bandpass…See More
Jan 25
Chuck aa0hw commented on Chuck aa0hw's blog post QRQ CW over 100 wpm - tips, techniques and specialized QRQcw GEAR
"Here is another VIDEO demo of TRANSMITTING CW on an ELECRAFT K3S at 120 wpm using the CW KEYing APPs from RECRI KEYER by AD5DZ several tests are going on at the same time in this experiment 1. keying CW on an ELECRAFT K3S above its advertised top…"
Jan 22

Profile Information

Your Call Sign
aa0hw
How many years have you been performing QRQ CW
about 24 years
What speed do you like to run QRQ CW
between 60 - 110 wpm
Your favorite key, paddle or bug
I have a MERCURY paddle
Your favorite cw keyboard
I like the MICROSOFT COMFORT CURVE 2000 for typing cw

http://images.pcworld.com/howto/graphics/124948-2406p140-1b.jpg
Your favorite cw sending software
FLdigi, YPLog & the AD5DZ software CW Keyboard
Your Rig, Antenna and RF Power
Elecraft K3S, 100 foot each leg of a dipole about 25 feet high
Your QSK preferences
Full QSK
Your favorite headphones or speakers for listening to cw
Closed back headphones
What has been your most effective way of training practice, to copy and send qrq cw
using FABIAN's QRQ app for sending random words and using a variable cassette player to listen to CW TAPES made by FABIAN's EBOOK2CW app

HERE IS THE NEXT WORLD CHAMPION QRQcw OP


Chuck aa0hw's Photos

Chuck aa0hw's Blog

Build your own high performance software QRQ CW AUDIO FILTER - using 4 FILTA LV2 modules in series

FILTA LV2 PLUGINS - http://openavproductions.com/doc/artyfx.html

NOTE:  The delay from start to finish - going through 4 instances of FILTA LV2 cw audio filter modules, being connected in series, measured to be only 2.5…

Continue

Posted on February 8, 2021 at 9:00am

Raspberry PI remote VLF RF over IP Rcvr::RE-Transmitter - Local PC SDR VLF Receiver - QRQ CW example

experimental setup to QSO QRQ CW at 18Khz VLF RF over ip - using a PEER to PEER Gstreamer PIPELINE TCP/ip setup and a Raspberry PI as a REMOTE VLF RX/ RE-TRANSMITTER

a PI2B is setup to RECEIVE another OP's VLF RF over IP transmission(CW at 18Khz) using a Gstreamer rtp TCP/ip PIPELINE - using the WAVPACK CODEC...the PI2b…

Continue

Posted on February 1, 2021 at 11:45am — 1 Comment

sending QRQ CW over IP over MIDI using ASEQNET TCP/IP - 80 wpm test - Linux Laptop to a Raspberry PI

test to see how stable the CW TIMING is at QRQ CW speed * 80 wpm * when using ASEQNET server/CLIENT setup midi over tcp/ip

http://ccrma.stanford.edu/planetccrma/man/man1/aseqnet.1.html

a MIDI CW KEYBOARD is used as the CW MIDI…

Continue

Posted on January 30, 2021 at 3:19pm

ULF BAND Receive Ferrite Core Loopstick Antenna for SOUND CARD INPUT - LIVE DEMO with QRQ CW example

brief rundown of using a large FERRITE CORE LOOPSTICK tuned ANTENNA to hook up directly to the sound card input...and then use some SDR software modules to get rid of HUM, NOISE, HISS and other EMF QRM from the house wiring emf'N into the RX antenna etc...

the ULF CW TRANSMITTER is a PI 4's audio output - going to a 30…

Continue

Posted on January 25, 2021 at 12:46pm

Tuned Ferrite Rod Loopstick ULF BAND(797hz) RX antenna to MIC JACK soundcard input: LIVE demo QRQ CW

this is a follow up from the first video here - https://youtu.be/pfWvh82Qh20

in this video....QRQ CW is being transmitted out on the ULF band at 797 hz and at 75 wpm to a small horizontal wire loop antenna @ about 30 watts from an audio amp/4 to 1…

Continue

Posted on January 5, 2021 at 12:00pm

Comment Wall (40 comments)

At 3:49pm on February 4, 2008, Rick said…
Good site idea and I hope it takes off, I will do my part to generate interest in it........
At 2:44pm on October 5, 2008, Fritz Zwingli said…
Hi Chuck,
many tnx for the kind words.
Congrats on your fb site and hope
to meet you on the air soon.
Vy73 es gd qrq`ing
Fritz
At 8:16pm on December 15, 2008, Bill Kramer said…
Hi Chuck. Thanks for the warm welcome. I don't know exactly when i'll be up and running from here. I have a few problems to workout first. I'm in a condo on the top floor(3rd) with 220 other units here. I face a courtyard and my balcony can bee seen my many others. This condo has antenna restrictions etc. so i'll have to run in the stealth mode. We will see what happens..Maybe a indoor 40 mtr loop?? Hope to catch you on the air.73's
At 6:10am on May 12, 2009, Patrick Henigin said…
Chuck I am trying to promote CW right here in my own home.
I have ordered parts for an interface as described on page
http://docs.google.com/Doc?id=ddw2g8w8_9fkz7xj
I think you wrote that page. It looks pretty basic. I am not sure where the positive voltage is applied, or what voltage it is run at. Or is the sound card supposed to supply enough power to run the circuit?
73 Pat N6ZEM
At 8:36am on September 9, 2009, mwm said…
HI Chuck

Tnx for the welcome as well as the back ground info on the CW IRLP project. I hope to meet up with you guys on that mode down the road.

73..........Mark/W8VNZ
At 1:00pm on November 23, 2009, David Runk said…
Thnks Chuck, got a ways to go on typing but 30-40wpm is FB!...now to get really serious!!! -73, Dave,aa3ej
At 11:56pm on January 1, 2010, KIT DEAN said…
Hi Chuck,

Yes I am presently training to improve my QRQcw copy. I use JustLearnMorseCode and MRX, as well as converting text lists of the 6800 most common words by means of ebook2cw. ( I can copy 24-27 wpm (using 41-44 wpm letters) using a computer keyboard. I spent the last two days trying to get CWirc and CWCOM to work on Windows and was just about to sign on with QSOnet when I found your site, which may be more what I am looking for. I would like to be able to head copy 36 WPM without error, and would dearly love QRQ at 50-70 wpm.) I was licensed in 1960 as a Novice and then in 1976 as an Advanced, and 1984 as an Extra passing the 20 wpm code test. I let my license lapse as I went back to school and was recently relicensed in January of 2009. I had a Yaseu FT101 and this year acquired two HW16's in anticipation of working more CW,

I downloaded the newest fldgi, Mumble and Wondershare. Thank you for putting the instructions for installation in a couple of places and formats, as this allowed me to setup and configure these software apps. Can you tell me which IRC channels are hosting qrqcw conversations, and if this setup is also used by others to work code on the chat channels.

73,
Kit
AC0NR (formerly AA6AS)
At 8:49am on January 2, 2010, KIT DEAN said…
Hi Chuck,
I have not been able to make CWirc work in Windows: it needs to have cwirc.so to be compiled in python or delphi so that the xchat that has been ported to windows can pick it up inside of xchat as a recognizable plugin.

I obtained the 6815 most common words from a website. This is a 'magic number' of words, since it is approximately 95% of all words used. (As you are already well aware) word usage varies depending on whether we are talking about all television scripts, or all novels, or all English usage per the big big Oxford dictionary. But this list should be nearly everything.

I have stayed away from chat rooms since 1994 when it became clear that these were largely unregulated or that there could be harm done to my computer. Because of that, it is somewhat difficult to be aware of the logon procedures etc. So I would really appreciate a really elementary list of how to log on and where to go etc. It seems we could open a IRC channel as #qrqcw_mumble and begin qso'ing. Also, I am lost as to where the main iCW website would be as I only found 11 messages on googlegroups. So I need some pointers.

I got out rufzxp again last night. I am at 46 wpm letters and I think I should just practice for about 2 hours per day. It seems that if I go with faster than 46 wpm letters I miss too much, so it may be my brain is breaking down the communication into dots and dashes. Any advice would be appreciated.



73,
Kit
AC0NR
At 2:17pm on January 22, 2010, PP5VX (Bone) said…
Tnx my dear !

I was hamming for the past 35 years, and started at 14 on ham-radio, and 15 on CW...
As you can read (and see...) better on QRZ.

Nice to take part of this wonderful world of CW and QRQ, of course, because, my moto is: "If you have to do something - do well" - Why CW at 15 wpm ? (hi)

See also the "MorseRunner Scores" page at www.dxatlas.com, with my other call: PV5X, in some contests...

73/DX Bone (PP5VX)
Allways QRP... hi
At 9:23pm on January 24, 2010, Bob said…
Many thanks for the welcome in the QRQcw, I'm very honoured.
Still need to learn a bit how-to here.
I hope to meet with all of you on the radiowaves,
73
Bob, I0QM

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