A method, scheduler, and processor program product for scheduling transmission of packets from a base station to a mobile station. A substrate is arranged in the reaction volume. The digital demodulator performs a digital demodulation processing by using the intermediate frequency signal digitally sampled and by using the one of the oscillating frequency, the multiplying frequency, and the dividing frequency of the clock signal as an operating frequency. The torch body comprises one of a plasma torch body and an oxy-fuel torch body that is exchangeably coupled to the torch receptacle. No emulation of down link information frames occurs.