Stated another way, Nothing on the system could be considered Transmitter specific. This project is only a Transmitter because of the software that is running. Therefore it is a 100% Software Defined Transmitter, an "SDT". I do not think there are many that can make the same claim.
|A True 100%|
Software Defined Transmitter
We have used the SDT as time scheduled WSPR, QRSS and OPERA Beacons and have successfully received reports from many places around world. With the addition of Jeff's Keyer Program, and my UI program (to take advantage of the LCD and Knobs) the SDT can be used interactively with a CW Key. As more software is developed, more modes and capability will be implemented.
|The SDT In Action|
Internet Based Map Report on the Left
Text Reports on the Right
So far, I am very pleased with the results we have obtained.
NOTE: If you try this, make sure you use an output Low Pass Filter, as the Propeller output is a square wave with many harmonics. The FCC requires harmonics to be down by 43db.
If you are a HAM and interested, buy a Prop, join the fun.
(Note: I am not an agent or associated with Parallax)