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From: | John Ackermann N8UR |
Subject: | Re: Strategies to save/display low sample-rate data |
Date: | Wed, 10 Apr 2024 13:44:31 -0400 |
User-agent: | Mozilla Thunderbird |
On 4/10/24 11:29, Fons Adriaensen wrote:
Both the decimation and 80 size 1024 FFTs per second should be peanuts for any modern PC... And of course you don't need to do the FFT again for every sample, it just generates a lot of redundant data.
I understood that if you have a 1024 bin waterfall, it takes that many samples to fill it and output a vector. With a sample rate of 80, that means about 12.8 seconds to show one line of the waterfall. Or do I have that wrong?
(I used 80 samples/sec for simplicity. The actual rate after decimating from a 1.536 ms/s stream is 93.75.)
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