A system, nozzle assembly, and method for coating a stent with a solvent and polymer are provided. The functionality of such a conveyor chain is to be extended. The method can include overhearing for a predetermined period of time the traffic by a station which intends to send real-time traffic, and if from the overhearing the station concludes that there is already a primary station transmitting real-time access markers, assuming by the station a sequence number based on the number of real-time stations which already are sending real-time traffic. The data blocks that are cached in the proxy cache define an active data set which is based upon a request from a client. Transmissions between the fixed position location devices and the fixed devices is monitored to determine changes in the characteristics of radio signal transmissions from the recorded data.