this is an osha nightmare

It looks exactly like the network cable in my house

The real ones know where jakes shirt came from

Yes.

11:49 Cos you're the little one.

Linus: "And you can even put it up your butt. I mean, tecnically that's a feature of pretty much anything, if you try hard enough"

Talking about a $20.000 probe.

AND then Jake, instead of pointing out how dumb that remark is, sais that "you wouldn't really see anything, since it's so much zoomed in"

Thank was so funny

can you check and review fiber command Hybrid Cables

No safety violations at all in this video

does linus have braces on his bottom teeth?

Don't you actually mean to say "we are going to tell you all ABOOT it"?

let's say optical computer including optical cpu/gpu will takeover everything.. light speed.. wow

Ltt in 2750: installing 100 exabit internet for our editors

What's great is that even in HFC systems, thanks to both DOCSIS 3.1 (soon DOCSIS 4.0) as well as OFDM (orthogonal frequency-division multiplexing) telecommunication providers are now able to compete with purely copper systems due to OFDM using multiple stacked carriers, providing the ability to reach higher orders of QAM (quadrature amplitude modulation), and a super important factor being the modulation/phase symbol and Forward Error Correction software to greatly reduce the impact of signal issues such as low SNR (signal to noise ratio),MER (modulation error ratio), noise, etc.

The easiest way to explain that is the FEC software exists to predict, anticipate, then correct errors associated with the cable modems locked on DOCSIS RX carriers (downstream/forward/receive/RX) of which for most DOCSIS 3.1 e-MTA there are 32 down and 4 up (which can potentially differ depending on placement of OFDM RX and any OFDMA TX carriers).

Imagine having a bucket with 1 billion pennies and a friend standing 10 feet away with their own bucket.

Let's say you launch all 1 billion pennies into the air from your bucket towards your friends bucket.

Your friend will undoubtedly catch a large number of pennies, but many will not make it into their bucket.

Now imagine those pennies are each 1 packet of data. This is where the FEC (forward error correction) modulation software comes into practice.

It uses an algorithm to predict what those pennies/data packets that didn't make it into your friends bucket were; was it a 1 or a 0?

So when there are signal impairments that software tries really hard to correct, cover it up, and mask any service issue to hopefully avoid any disruption or drop in connectivity quality.

OFDM is REALLY good at this. Pairing that with DOCSIS 3.1 and DOCSIS 4.0 standards (Google "Cable Labs DOCSIS explained") and HFC coax topologies have massively extended their shelf life and ability to stay competitive with purely fiber applications (head end CMTS to modem.

Copper hasn't reached it's full potential yet and with the right software, hardware, and radio frquency modulation I believe you could achieve comparable results to what fiber would net you for THIS SPECIFIC application.

The amount of signal loss due to attenuation over coax in your setup here is not sufficient enough to alone warrant the need for a full-duplex fiber star topology, although your symmetrical RX and TX transfer rates probably make it worth it.

In Hybrid Fiber Coax (HFC) markets it is light and fiber to each node and from each node to each home or business it is copper (coax/hardline.)

I wanted to shout out the Viavi ONX signal level meter for having a fiber USB dongle for measuring light levels in addition to RF signal levels AND another USB dongle that turns your meter screen into a stethoscope screen.

The dongle has a microscope and camera, so it shows you if your fiber connector is dirty. If so, one click tool and pray 🙏 lol.

Just a bit about me:

I'm a commercial and small/medium business field tech for the second largest ISP in the United States and SCTE/NCTI certified "Master Technician".

In my duties I install and repair fiber to the premise, POTS, CAT5E and CAT6, and coax. Everything from simple internet repairs to punching down dozens of phone numbers on 66 blocks, repairing PBX and complex coax, generating IP blocks from the CMTS pool, writing scripts and dropping scripts using KiTTY/PuTTy for Gateways + 2 box e-MTa/Router solutions for static IP blocks, configuring GUI, port forwarding, etc., fiber epon and gpon, terminating and troubleshooting fiber/light in keystone patch panels, diagnosing and interpreting RF telemetry using soft tools and Viavi ONX SLM's….the list goes on and on lol you get the idea.

Linus, if you ever want any inside scoop from an in-house ISP tech, have any questions or projects I could useful to you for then please, don't hesitate to give a shout.

Great video, as usual!!!

Continuously press the left arrow at the beginning of the video. You're welcome. Ha-Ha-Ha-Ha.

Just wondering, would mounting an SFP converter on the wall been an option? So you run fiber to the wall, and then convert fiber to DAC so the fibre doesn't get damaged.

#lienus