On the installations AMBAL-M and MAL in turbulent plasma column the longitu
dinal current of some kiloampers was measured. The fluctuation spectrum of
magnetic field was measured by azimuthal magnetic probes and expansion of p
lasma current by spatial modes was carried out.
According to the experimental data the amplitudes of currents I-n, sizes R-
n and shifts from axis of simmetry Delta R-n for 3rd (40kHz) and 5th (72kHz
) basic modes were calculated.