  We study the finite frequency (F.F.) noise properties of edge states in the
Laughlin state. We investigate the model of a resonant detector coupled to a
quantum point contact in the weak-backscattering limit. In particular we
discuss the impact of possible renormalization of the Luttinger exponent, due
to environmental effects, on the measured quantities and we propose a simple
way to extract such non-universal parameters from noise measurements.
