There are 4 event pins on a typical serial port, DSR, DCD, RI, and CTS. EhoCW provides very accurate cw keying, adjustable raised cosine cw waveforms, and allows you to also hook up your Bug and Straight Key too. This amount of latency for monitoring your sidetone from EhoCW, is not high enough to cause any trouble for sending well timed cw with your paddles using EhoCW in iambic mode. The delay that was measured from actually tapping the morse code key until you actually hear the tone when using EhoCW with a WASAPI AUDIO DRIVER, is about 55 milliseconds. ARTICLE ABOUT FABULATECH and HAM RADIO 7. HERE ARE THE LINKS MENTIONED IN THE VIDEO: 1. Here is the video tutorial for this setup: Two instances of EhoCW are used and setup exactly the same to send iambic morse code to two different sound cards - one instance to send audio to your computer sound card so you can monitor your sidetone, and a second instance to duplicate the first EhoCW iambic keying but send its audio to another sound card, a virtual sound card, to be connected to the input of Mumble on iCW for sending morse code over the internet. Only EhoCW has the option to select WASAPI SOUND CARDS, no other software cw keyer was found that had this feature. WASAPI AUDIO DRIVERS are almost as good as ASIO DRIVERS in regards to cw timing accuracy and low latency. EhoCW has just released a new version which allows for multiple instances and the option of using WASAPI AUDIO.
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