On Tue, Nov 1, 2011 at 9:13 AM, <[email protected]> wrote: > I read the white paper, but still not sure about this. I know the > phrasing of this will be technically incorrect but, Is TNF in the audio or > RF domain? >
The TNF operates at the IF and inside the AGC loop. It just happens that the IF is usually at an audio frequency so people get confused. The key is that when you notch out a noise source, its effect is removed from the AGC as well so the noise won't "capture" the AGC and reduce the receiver gain. Also the noise, if it is not constant, will not cause the receiver gain to "pump". So, if I understand your question properly, and you are asking if it will act more like an "RF" notch filter or an "audio" notch filter, it will react like a traditional "RF" or "IF" notch filter. Bottom line: Flex did it the right way. -- Brian Lloyd, WB6RQN/J79BPL 3191 Western Dr. Cameron Park, CA 95682 [email protected] +1.767.617.1365 (Dominica) +1.916.877.5067 (USA) _______________________________________________ Flexedge mailing list [email protected] http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is used for posting topics related to SDR software development and experimentalist who are using beta versions of the software.
