VersaBeacon Project [复制链接]

this paper was presented at the 2004 svhfs conference in atlanta. http://www.svhfs.org/


this project began as one of those "here's a neat chip, what can we do with it?" conversations and grew from there. the heart of the beacon is a relatively new direct digital synthesis(dds) chip from analog devices. the original idea was to use some of the unique features of this dds chip to implement a simple fsk441 meteor scatter beacon. from there it turned into a much more capable and "versatile" signal source.



the versabeacon is a frequency agile, modulation agile rf source using a dds chip and minimal support circuitry. it covers a frequency span of 1mhz to 150mhz in 1 hz steps and provides a variety of modulations including:
ook cw
fsk cw
fm cw
fsk441
psk31
rtty
sstv
fm voice
and other modes that can be created using phase or frequency modulation.

versabeacon project
beacon pic firmware source code
versaloader utility for downloading code and data tables into the beacon
utility to create various data tables and help screen