I really want to follow G3XBM and G4ILO's leads and get on other interesting bands with a simple configuration.
My initial goals, desires or ideas for this modulator/controller are:
- Self contained module
- PIC or other controller
- Simple rotary Input for CALL, Grid and Power
- Display for interaction
- Maybe an output to set Power on Transmitter
- Provide Audio FSK and/or DC level for direct modulation
- Transmit Control as necessary
- Receiver for time tick from (WWV or other) for transmit timing, maybe using the TX antenna?
- Easy connection to simple Oscillator/Transmitter
- Simple low Battery power requirements
- Built with simple and easy to obtain parts
- Easy to reproduce in Manhattan, Ugly or SMD Style
- Published Art Work, Source Code and Parts List
Update1:
Here is what I think I know - more details to be added as they are known - please help if you can.
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Nice idea, Eldon. I'd like a self contained module you could plug in to any radio to start WSPR beaconing without needing a computer. But having spent many hours studying the WSPR source code I think converting the encoding algorithm to run on a PIC processor would be very challenging. It's very complex. I think most people who have tried this have used one of K1JT's WSPR command line utilities to output a table with the code sequence for specified call, locator and power, and hard coded that into their PIC controller.
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