On Fri, Aug 12, 2016 at 1:33 PM, Keith Whyte <keith(a)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