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Subscribe to this list via RSS Blog posts tagged in Data Transmission
06
Feb
0

High Speed Data Transmission for Non-EE's - Part 9 – Insertion Loss: Speak Up!

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So back to the table model, when you want to talk to someone at the far end of the table, you might have to shout for them to hear you. This is due to two things: The sound waves spread outward as they are emitted out of your mouth, so only a small amount of the acoustic energy falls on the ears of the recipient. The rest of the energy becomes potential crosstalk to others at the table. This is like an unshielded set of conductors in a... Continue reading
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24
Jan
1

High Speed Data Transmission for Non-EE's - Part 8 – The Rocky Road of Connectivity

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b2ap3_thumbnail_Blogpost8-Image-1.jpgGrowing up in Vermont, I experienced my fair share of pot holes in roads.  When riding my bike, while I always tried to avoid pot holes, but when there was no other option but hit one, I’d either take a jolt to the backside, or ideally absorb the impact by standing on the pedals, and keep moving forward with the bike.  With my limited skateboarding skills, the pot hole would stop the skateboard cold and send it backward as my inertia would carry me tumbling forward.

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  • Nick Perlick
    Nick Perlick says #
    Dear Mr. Selfridge; I find your technical mastery coupled with a profound universal understanding of life invaluable to folks like
22
Nov
0

High Speed Data Transmission for Non-EE's - Part 6 – Can You Hear Me?

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If we stick with the acoustic communication model, have you ever purchased tickets from someone behind a protective glass barrier?  If there is no speaker/microphone set up, this can be tough, as most of the acoustic energy gets reflected back, thus very little passes through. Or have you ever been at one end of a large corrugated pipe, and shouted towards the other end?  A series of echoes bounce back at you, as some of the acoustic energy is reflected by the corrugations.  While the reverberation... Continue reading
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05
Nov
0

High Speed Data Transmission for Non-EE's - Part 5 - Isolation

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b2ap3_thumbnail_Blogpost-Image-7.jpgNow, instead of spacing the people out, or putting quiet pairs of people between the pairs of people that like to talk, we can break the table up with booth walls that shield portions of the tables from each other.  This minimizes the crosstalk between adjacent pairs of people while taking up a minimum of space in either shielding or isolating them from one another.  With this arrangement, one can achieve a high density of communicators (or electrical signals) at a single table with minimal crosstalk.

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