Tags: audio derived cw keying switch, regenerative cw filter
The video above uses an AUDIO DERIVED CW KEYING CIRCUIT and
in a previous discussion we have many types of circuits to choose from:
Here is a QRQ example at 70 WPM of poor quality cw being converted to near perfect sine wave cw
HERE IS THE USB SOUND CARD(with internal audio amp) THAT WAS USED FOR REGEN MODE:
HERE IS A BLOCK DIAGRAM OF THE AUDIO FLOW FOR THIS REGENERATIVE CW FILTER
So many of the newer computers do not have a serial port, only USB ports. Can I set this up if my computer does not have a serial port?
Yes, if you have a spare USB PORT you can purchase a USB to SERIAL PORT adapter.
This demo was actually done with a USB TO SERIAL PORT ADAPTER, since on my laptop I do not have a serial port. I have heard that these adapters that use the FTDI chipset are the best...so look for one that uses this FTDI CHIP SET...like this one from AMAZON
might be better with a USB EXTENDER CABLE like this one from AMAZON
Here is the STRAIGHT KEY setup for using CWcom as the software CPO:
NOTE: CLICK ON PICTURE FOR FULL SCREEN VIEW
The software CODE PRACTICE OSCILLATOR used to REGENERATE
- is called softCW:http://www.tropicalcoder.com/SoftCW.htmIn this video a special version of this software CPO is used,(beta version 1.70 pro32)If you would like try out this high performance version - contact GEORGE - at - gtaylor@TropicalCoder.com
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