All Blog Posts (419)

The latest version of FLdigi, 3.22.10, now has its own, cw audio bandpass filter,

to help filter out any qrq cw edge noises made in TRANSMIT MODE.…

Here are some videos about setting up QRQ CW apps on the LINUX PLATFORM…

This video demonstrates 5 different cw keyboard programs - just an overview of each one.( there are other videos that will go over the details of each one) These 5 cw keyboard programs were selected because they have adjustable cw timing parameters for weight, dot/dash ratio, rise/fall time, compensation etc...

FOR FURTHER INFORMATION ON THESE KEYERs SEE:

1.…

This video is an overview and demonstration of some of the best cw apps out there for the windows operating system. First shown is how to hook up your paddles, bugs and keys all at the same time, to a program called ehoCW, so you can use any of them, any time on your computer. (ehoCw uses a serial port or USB to serial port adapter for attaching your paddles, bugs…

HERE ARE THE CW SOFTWARE KEYERS mentioned:

1, ehoCW

http://www.f8eho.net/

2. dahdidah cw keyer

http://echo.qsonet.com/viewtopic.php?forumid=10&topicid=785

3. Morse Keyer…

Every computer MICROPHONE INPUT jack,  has its own voltage and current that is already built inside it, in order to power Electret Mics.  By modifying a very simple and low voltage square wave generator circuit to make use of this MIC VOLTAGE, a very simple and NO BATTERY NEEDED -  EVER -   code practice oscillator can be made using this circuit, the MIC JACK,  and  an AUDIO to MIDI technique to regenerate the original input…

This is an experiment in using free VST PLUGINS to create a MIDI KEYED morse code sine wave oscillator(software). It is "keyed" by MIDI INPUT. You can also use this midi setup to regenerate morse code audio tones from another source. FLdigi is used in the video for this purpose. Using MIDI to key a software CPO, shows great promise, since the accuracy of midi input keying is far superior to using a SERIAL PORT for this kind of a setup, in regards to accurate timing. Even at extreme QRQ CW…

This video demonstrates an advanced method for qrq training with MIXXX using FREE VST PLUGINS to regenerate the exact incoming cw audio tones and recreate them with a FREE software CPO called BIPPER, - filter the final audio product - for audiophile quality qrq cw morse code audio tones. As an example, an audio mp3 file was made using FABIAN's ebook2cw program and then loaded into MIXXX for playback. The unique features on MIXXX make it a versatile training tool for qrq cw training;…

The following Video demonstrates a method to filter QRQ CW morse code audio tones with free software:

If you are interested in trying this setup please see this video RE: JACKROUTER SETUP for WINDOWS 7…

FLDIGI over the INTERNET

How to send any FLdigi digital mode over the internet to any other online FLdigi OP(s)…

EhoCW has just released a new version which allows for multiple instances and the option of using WASAPI AUDIO.  WASAPI AUDIO DRIVERS are almost as good as ASIO DRIVERS in regards to cw timing accuracy and low latency.  Only EhoCW has the option to select WASAPI SOUND CARDS, no other software cw keyer was found that had this feature.  Two instances of EhoCW are used and setup exactly the same to send iambic morse code to two different sound cards - one instance to…

Improve your qrq cw copy when listening to high speed morse code on your computer with this free software method

This video will demonstrate some unique challenges and solutions, when listening to high speed qrq cw morse code audio on your computer.…

VB-AUDIO VIRTUAL CABLE

This VB-AUDIO VIRTUAL CABLE worked extremely well during my tests with FLDIGI and MUMBLE.  It never glitched…

This video demonstrates how to bring up multiple instances of QsoNet's Dahdidah Cw Software Keyer using FABULATECH's VIRTUAL SERIAL PORT SPLITTER.  Four separate instances of Dahdidah are used  -  to hook up a cw keyboard, paddles, bug, and straight key, all at the same time.  Connections are made from your iambic paddle keyer output, cw keyboard keyer output, straight key and bug - to separate SERIAL PORT PINS : DCD, DSR, RI, CTS in order to send morse code on your…

Friends Remembered

The following is presented as a remembrance of two Fast Operator Group (FOG) members.  Ken, W9LRV, passed away in January 2013, and Fred, W3NJZ, passed away in March 2012.  Those of us…

I recently finished building my HI-PER-MITE cw filter.  I am very impressed at how well this filter performs  It may be one of the best active cw bandpass filters I have every used.   Here are my results from testing this awesome filter:

Here is a picture of my build…