Summary
IPS Radio and Space Services, currently operates three four-receiver Canadian Advanced Digital Ionosondes (CADIs), two at mid-latitudes at Canberra and Camden, and the remaining one at Casey station, Antarctica. The deployment of a fourth unit at Macquarie Island is scheduled for this summer. Since its commissioning in 1993, Casey Digital Portable Sounder (DPS) has been continuously recording F-region ionospheric drift complemented, over the past four years, by E-region drift measurements. Both instruments, CADI and DPS, were proven to reliably monitor ion motion in the F-region. Over the winter 2000, both instruments were run simultaneously at Casey. The comparison between Casey CADI and DPS drift records will allow us to calibrate the newly installed CADI instrument and devise alternative operation modes for the continuing and future operation at Casey and Macquarie Island, respectively, as the DPS is scheduled to be relocated to Davis station next season.