On Fri, Aug 12, 2016 at 1:33 PM, Keith Whyte keith@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