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Tom Tsou tom at tsou.ccOn Fri, Aug 12, 2016 at 1:33 PM, Keith Whyte <keith at rhizomatica.org> wrote: > On 10/08/2016 19:35, Tom Tsou wrote: >> There are two ways to implement multi-ARFCN with the B210 - using >> independent, direct channels for each ARFCN and mutiplexing multiple >> ARFCN's onto a single RF channel. > oo.. Possible silly question, but then is this multiplexing single RF > channel mode possible on the N210? Not a silly question at all. In fact, it's a very good question. Yes and no. The N210 device is capable of operating in a similar configuration, but the implementation is more complicated and, more importantly, does not exist. The reason is that the N210 uses a fixed FPGA clocking frequency that doesn't match up well with the polyphase channelizer used for multiplexing. The B200/B210 has configurable clocking so that the desirable sampling rate for GSM channel spacing can be used. -TT