Peter Teuben, Andy Harris (University of Maryland, College Park), Jim Morgan (UMD, now at Edge Technologies), Kate Isaak (UMD, now at MRAO, Cambridge), Jonas Zmuidzinas (Caltech)
Reference URL: http://www.astro.umd.edu/~teuben/wasp/
We have been upgrading our software front-end to WASP (Wideband Autocorrellating SPectrometer, operating from 800 to 4000 MHz) from LynxOS to Real-Time Linux, and will discuss real-time aspects of our software. We are using a standard parallel ``PIO'' card to receive data from the spectrometer, and standard GPIB interfaces that drive a frequency synthesizer for calibration.
The WASP computer and spectrometer frontend are mobile, and can be taken to any radio telescope. The frontend is typically connected via ethernet to the actual observing computer at the telescope, and we will also discuss a typical observing setup in such a loosely coupled environment.