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fishfinder latency & "real time"
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<blockquote data-quote="iam2sam" data-source="post: 413839" data-attributes="member: 20253"><p>A friend was telling me of new fishfinder models with "real time" display technology. He claimed that there was on the order of 10 seconds of latency between when a fish swims by and when it appears on the display for older tech fishfinders. I find that very difficult to believe. While I don't doubt that there is some measurable latency, it seems to me the sources are the electronic components themselves (miliseconds at most) and the transmission speed of the detection radiation through water. I'd be amazed if the total delay was more than 1 second, and fairly surpised if it was even near that value. Heck if the delay was 10 seconds, I'd think that the devices would be fundamentally useless to avoid obstacles in the water and running aground. Anyone have a pointer to actual statistics for the latency?</p></blockquote><p></p>
[QUOTE="iam2sam, post: 413839, member: 20253"] A friend was telling me of new fishfinder models with "real time" display technology. He claimed that there was on the order of 10 seconds of latency between when a fish swims by and when it appears on the display for older tech fishfinders. I find that very difficult to believe. While I don't doubt that there is some measurable latency, it seems to me the sources are the electronic components themselves (miliseconds at most) and the transmission speed of the detection radiation through water. I'd be amazed if the total delay was more than 1 second, and fairly surpised if it was even near that value. Heck if the delay was 10 seconds, I'd think that the devices would be fundamentally useless to avoid obstacles in the water and running aground. Anyone have a pointer to actual statistics for the latency? [/QUOTE]
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