SCAMP is a new digital protocol that was created for the RFBitBanger radio. It specializes in achieving reliable alphanumeric communication with very simple hardware, but it also can communicate with SNR low as -18 dB (as referenced to 2500 Hz bandwidth). There is now a version of fldigi that includes SCAMP. You can find it at https://github.com/profdc9/fldigi This version is interoperable with the RFBitBanger and supports all six RFBitBanger modes. The RFBitBanger is no longer required to experiment with this mode, so I encourage all to try it. 73, Dan KW4TI
I tested this with one of my other QRP rigs into dummy loads on the bench and the RFBitBanger and they communicate mostly as expected. The only weirdness was the RFBitBanger doesn't seem to print anything for \r, so if you press Enter while sending in FLDigi, two words show up together without any space on the LCD. Looks easy enough to patch receive_character() to handle it. There's already a special case for backspace \b. It'd be cool to come up with a "watering hole" of sorts for this mode, like how the PSK* modes have xx.070 and FT8 is on xx.074 on most bands. That way folks have an easier time finding each other.
Until this stuff gets merged upstream and into a release, you'll probably need to build it yourself to use the new modes.
