Wideband VLF electromagnetic bursts are observed on the DE 1 satellite by both the electric and magnetic field sensors in the frequency range of 0.650 kHz to 16.0 kHz. The impulsive signals endure for a relatively short time (~1 s or less) and exist in the frequency range from well below to well above the local gyrofrequency. They are typically found at L>4 over a ~40¿ range of latitudes including the geomagnetic equator and often accompanied by discrete emissions or a band of hiss. Some observed features are consistent with previous observations of electrostatic plasma waves [Ondoh et al., 1989; Reinleitner et al., 1983>; however, the magnetic measurements clearly indicate that the impulsive signals are electromagnetic in nature, a result that has not been reported before. The possibility of spacecraft discharge effects as the cause of these signals is discussed. ¿ American Geophysical Union 1990