Last time I looked at the XCVR2450 schematic, there was no AGC. Any
AGC would be implemented in software in the end application, and the
PLLs on the XCVR2450 are used to set the center frequency of the
quadrature downconverter. The hardware doesn’t “know” anything about
whatever modulations you’re using. The USRP family shovel
basebanded-and-filtered RF bandwidth back and forth to your host
computer. What you do with those samples is up to you.
o ADC Dynamic range–there’s at least 70dB of dynamic range
available, so you should be able to distinguish the two signals, unless
they’re right on top of each other.
o Analog Dynamic range–if one of
the signals is starting to drive the analog front-end into compression,
it doesn’t matter how much dynamic range you have on the digital side
On Tue, 21 Feb 2012 19:13:42 +0100, [email protected] wrote:
First of all thanks a lot for any support!
using the XCVR2450 Daughterboard together with the USRP1. My
consists of two transmitting nodes and one receiving node, in
both transmitters send messages in overlapping time slots.
wondering how I can access any settings related to the capture
when receiving two signals. In my opinion either related to the
Lock Loop or Automatic Gain Control.
Any hints, suggestions or
detailed help will be highly appreciated!
best regards and thanks a
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