On 2000 May 5 , we began a large multi-wavelength campaign to study the intermediate polar , EX Hydrae .
The simultaneous observations from six satellites and four telescopes were centered around a one million second observation with EUVE .
Although EX Hydrae has been studied previously with EUVE , our higher signal-to-noise observations present new results and challenge the current IP models .
Previously unseen dips in the light curve are reminiscent of the stream dips seen in polar light curves .
Also of interest is the temporal extent of the bulge dip ; approximately 0.5 in phase , implying that the bulge extends over half of the accretion disk .
We propose that the magnetic field in EX Hydrae is strong enough ( a few MG ) to begin pulling material directly from the outer edge of the disk , thereby forming a large accretion curtain which would produce a very broad bulge dip .
This would also result in magnetically controlled accretion streams originating from the outer edge of the disk .
We also present a period analysis of the photometric data which shows numerous beat frequencies with strong power and also intermittent and wandering frequencies , an indication that physical conditions within EX Hya changed over the course of the observation .
Iron spectral line ratios give a temperature of \log T = 6.5 - 6.9 K for all spin phases and a poorly constrained density of n _ { e } = 10 ^ { 10 } -10 ^ { 11 } { cm } ^ { -3 } for the emitting plasma .
This paper is the first in a series detailing our results from this multi-wavelength observational campaign .