It's been a long hard road but I finally have net access good enough to do iCW. I live in a very rural area in the middle of about 60k acres of woods. Satellite internet just doesn't make it for iCW. Finally got a cell booster and found out 750 MHZ RF does NOT like trees. The system came with a 4 element yagi. Tried several different spots, not consistent enough. Now I've got an 8 element up around 70 ft. in a tree that has a somewhat clearer shot to the tower and it's working reasonably…Continue
Added by Steve Steltzer on February 17, 2018 at 12:57pm — No Comments
using the free LV2 apps from:
a software CW KEYER is constructed by chaining the apps together in an array that does the following...
1. a sidetone from the internal or external ports is routed first to the CALF EQUALIZER 5 BAND LV2 PLUGIN where the 1khz…Continue
this video briefly shows how the ZamGate CW Keyer produces excellent CW AUDIO TONES that are precisely and accurately timed, from a CW TONE audio signal input at the ZamGate input "SIDECHAIN" port....in this case, the audio signal connecting to the ZamGate SIDECHAIN INPUT PORT is the rough, harsh audio output tone of YPLog(set to output a…Continue
short demo of using the free open source modular synthesizer program - VCV RACK - to build your own software "keyable" Morse Code Practice Oscillator
the plugins shown used, are some of the basic default plugins that install with the VCV RACK program....the Morse Code CPO setup uses a typical basic framework to make a midi keyed…Continue
Added by Chuck aa0hw on February 12, 2018 at 12:17pm — No Comments
VB-AUDIO's Spectralissime is working perfectly on LINUX LUBUNTU 16.04 using W.I.N.E and the WINEasio driver for JackRouter. This is a windows program and this demo would also apply to a windows install of this excellent software audio spectrum analyzer. This video below, is a brief demo showing the spectrum readout of FLdigi sending cw at 40 wpm and varying the rise/fall time and toggling on & off - FLdigi's own unique and powerful CW bandpass filter…Continue
This video is demo’N a setup to create a custom QRQ CW sine wave, raised cosine edged, ‘keyable’ oscillator
There are already 2 excellent programs for LINUX for a software QRQ CW KEYBOARD… FLdigi and TWQRQ...however, neither one of them are ‘keyable’ - this first video in a new video series on “QRQ CW OVER 100 WPM” uses Fldigi as a tool to…Continue
click on the YOUTUBE icon at the bottom of any video in this 6 part series that you are interested in to see its discussion notes and links
One of the advantages of sending CW this way, is that you can send a very customized and optimized cw waveshape that has extremely low distortion and harmonic energy... extremely low key…Continue
Added by Chuck aa0hw on December 11, 2017 at 4:10pm — No Comments
test results are shown(no sound on video) for hitting a lever that sends a TONE into the mic input jack of a laptop...a separate USB RECORDING MIC is placed at an equal distance from from both the LEVER and the SPEAKER (ABOUT 6 inches to mic from both the lever and the speaker) the MIC measures the TAP sound when hitting the LEVER and the final…Continue
Added by Chuck aa0hw on December 4, 2017 at 12:00pm — No Comments
Robin Schmidt's EngineersFilter is a remarkable software APP audio bandpass filter VST PLUGIN...this video demo shows a test to compare how well just ONE FILTER APP can take out all the harmonics of a harsh square wave CW SIDETONE...AND...output a MORSE CODE AUDIO NOTE waveform that looks the closest to a raised cosine edged CW…Continue
This is a QRQ CW COPY TEST - to see how close I could match the great sound of FLdigi's QRQ CW with a custom cw sine wave oscillator - built up by using AMsynth and the GLAME BANDPASS FILTER...NOTE: since you can not externally KEY FLdigi... i had to search for another way to be able to key CW manually/externally - from PADDLES, KEYBOARD or…Continue
Added by Chuck aa0hw on December 2, 2017 at 4:44pm — No Comments
Using VoiceMeeter on LINUX - HAM RADIO - QSO QRQ CW over the internet with VBAN
Added by Chuck aa0hw on November 21, 2017 at 3:43pm — No Comments
this video LIVE demo is using a Raspberry PI 2b and FLdigi together as a CW KEYER, remote rig control AND a logging book...
- FLdigi does it ALL !
- A BIG THANK YOU TO W1HKJ !!
- this setup does not tax the pi's cpu and runs perfectly
the first part of the video demo's receiving a station on 40 meters and changing some of…Continue
Added by Chuck aa0hw on November 2, 2017 at 9:38am — No Comments
This video demos's a RASPBERRY PI using FLdigi which is sending out a stereo signal from the pi's own analogue sound card to 2 individual audio derived cw circuits: see here: http://qrqcwnet.ning.com/forum/topics/what-circuit-for-computer
one keying circuit keys…Continue
Added by Chuck aa0hw on October 30, 2017 at 2:00pm — No Comments
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, setting of pulseaudio, pavucontrol and paprefes and more ....
Tested it is very light version and running very speed all in memory, live version doesn't need install... enjoy and have nice qrq !
Sorry for my english. Ciao de i8cee,Sal
link to download ( version 2.1 dvd…Continue
Added by i8cee -Salvatore Cecere on October 27, 2017 at 3:11pm — No Comments
Short demo of a MORSE CODE AUDIO sidetone QSO over the internet between 2 CW OPS using the FREE LV2 plugin - STUDIO-LINK -…Continue
Added by Chuck aa0hw on October 7, 2017 at 8:43am — No Comments
Using an audio derived cw keying circuit to key CW on the K3S : http://qrqcwnet.ning.com/forum/topics/what-circuit-for-computer
- with the circuit attached to the K3S cw keying jack...and being key'ed remotely via a voice chat program called MUMBLE:…
using MUMBLE and MORSE CODE audio tones, and varying the Mumble output volume from 15 percent to 200 percent, this video demo's VLevel keeping the volume output of Mumble to be extremely stable at a near zero DB final audio output to the sound card, no matter the level of volume at VLeveL's input...VLevel is acting as an AUTOMATIC GAIN CONTROL, and…Continue
Added by Chuck aa0hw on August 8, 2017 at 8:00am — No Comments
Brief demo of what a morse code audio QSO over IP sounds like - using the WIRE DESKTOP APP
Secure, end-to-end encrypted messenger…
A few weeks ago, I found some relatively cheap Chinese K3(S) IF filters on eBay. Since I recently purchased a K3 (with the new synthesizer), I was wondering if the offered 250 Hz and 500 Hz filters are any good. I ordered two of each variant and a 200 Hz filter from Elecraft, in order to have some comparison models. I also measured the filters that were already present in my rig and concluded which filter combination and settings are best in my…Continue
Added by Wolf on July 9, 2017 at 2:52pm — No Comments
SETUP: an UltraPico Keyer, keys a 555 TIMER CHIP..from the audio output of the 555, an audio cable is attached and goes to the input of a laptop's mic jack input...the 555 time chip sidetone is very rough sounding with lots of high pitched harmonics and key clicks...INSTEAD of trying to filter the 555's raspy tone, this video demo's using TRIGGER…Continue