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SOME RESULTS FROM INTMINS
The experiment can be performed when the electron beam (instrument ISTOCHNIK) and plasma blobs (instrument ARIEL) are injected approximately along or perpendicular to the Earth's magnetic field. There are three modes of operation of the instruments. The first two have different sequences of alternating plasma injections by ARIEL between the EM channel and the thermal channel. In the third mode the electron gun is used, and its EM field may be observed on the ground. The pulses of frequency of 1000 Hz will generate EM waves and its harmonics. These frequencies are in the pass band of the INSPIRE VLF receiver.
The first observations from the INTERBALL-1, the result of the INSPIRE network observations during major operations periods, and results of theoretical calculations of the propagation of electromagnetic waves connected with electron beam injection were implemented.
The results of our theoretical calculations of propagation of the EM waves generated by electron gun are as follows:
For reliable ground-based reception of electric field signal of the ISTOCHNIK instrument at the distances up to several hundred kilometres from the vertical axis from the MIR space station to the Earth surface, under the mean interference level conditions and at middle latitudes, and with any azimuth angles between the station and the reception point, it is necessary: