  We present the first survey of radio frequency interference (RFI) at the
future site of the low frequency Square Kilometre Array (SKA), the Murchison
Radio-astronomy Observatory (MRO), that both temporally and spatially resolves
the RFI. The survey is conducted in a 1 MHz frequency range within the FM band,
designed to encompass the closest and strongest FM transmitters to the MRO
(located in Geraldton, approximately 300 km distant). Conducted over
approximately three days using the second iteration of the Engineering
Development Array in an all-sky imaging mode, we find a range of RFI signals.
We are able to categorise the signals into: those received directly from the
transmitters, from their horizon locations; reflections from aircraft
(occupying approximately 13% of the observation duration); reflections from
objects in Earth orbit; and reflections from meteor ionisation trails. In total
we analyse 33,994 images at 7.92 s time resolution in both polarisations with
angular resolution of approximately 3.5 deg., detecting approximately forty
thousand RFI events. This detailed breakdown of RFI in the MRO environment will
enable future detailed analyses of the likely impacts of RFI on key science at
low radio frequencies with the SKA.
