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From: | John Ackermann N8UR |
Subject: | [Discuss-gnuradio] Gnuradio clock coherence? |
Date: | Tue, 14 Nov 2017 14:13:37 -0500 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.3.0 |
Then, if there is a hardware source (SDR) as well as an internal source, does the hardware source provide the master clock for the flowgraph, such that any other software-derived sources are coherent with it? Or does a Signal Source block still get its clock from the PC?
My real question is whether it's safe to assume that a flowgraph is entirely clocked by the samples from its hardware source, and consequently that processing within the flowgraph (e.g., oscillator and mixer for tuning) does not introduce potential frequency errors.
Thanks, John
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