• 2 Posts
  • 39 Comments
Joined 2 years ago
cake
Cake day: July 20th, 2023

help-circle
  • Except they literally couldn’t? Official documentation for 3.0 is 100 up and 1G down in a lab setting. As someone who’s actually tested that with an ISP it doesn’t work in the real world. 500/50 was what was achievable in most cases. Then 3.1 pushed the download with OFDM splits, but practical applications still couldn’t hit the 1G they got in lab environments. 3.0 was never advertised to hit 200 up and 3.1 hasn’t actually hit it in real world. 4.0 will get us closer to symmetrical max.

    I will say that Comcast being the biggest ISP does likely mean they’ll reach true d4 first but to my knowledge they haven’t achieved it yet.



  • The technology is there, but we need to free up that space. Cable companies don’t just do things to their own beat. Cable Labs is the one responsible for organizing how that bandwidth is used and removing the cable frequencies to open up more internet frequencies is literally the next step.

    But you need to do entire markets at a time. We can’t just upgrade the people that move to IP tv because at a certain point they share lines with people who haven’t upgraded so that bandwidth is already used.

    Everyone needs to upgrade in an area to allow the business to reallocate that bandwidth. What you described is literally what is in progress right now. It just takes time


  • The asymmetrical aspect of cable will be here to stay. Fiber can do it because it was build on a different foundation.

    Copper cable transmits data using electric signals in various frequencies. There are a batch of frequencies reserved for phone and TV. ALL of the tv programming is constantly streamed to your lines whether you have TV or not and whether you pay for it or not. It’s encrypted and is only decrypted by your cable boxes when your provider says they can decrypt it. The phone frequencies are reserved so you can make phone calls and still max out your download.

    So what about the rest of the bandwidth? Well, way back in the early days of cable it was pretty much everyone for themselves. Every company did things its own way. That’s where DOCSIS came in. It’s a platform that allows modem manufacturers to make modems that will work on any cable network that supports Docsis. And the key part is that DOCSIS is always backwards compatible. The network upgrade to 3.1 did not break the old d2 devices.

    When it was developed the download was extremely more necessary than the upload. You’d be sending small single line commands on upload and receiving entire files in download. So more frequencies went to download than upload. In a lab setting 1.0 could reach 40mbps down and 10 up. That’s not what was sold because real life isn’t a lab and there’s loss over large distances. Realistically most people got 10 mb down and upload wasn’t even listed.

    Whats changed? Well today those same download and upload frequencies are still used. We’ve added more around them to deliver higher speeds. But we’ve also kept the same principles that people need more download than upload. Docsis 3.1 was released in 2013. We really didn’t start stressing over upload until Covid and work from home had us on zoom calls all day.

    Docsis 4.0 is technically released but requires quite a bit of overhaul to work with existing networks. We pretty much need to do away with cable tv. That’s why many ISP’s are pushing IPTv. It removes the need for all that bandwidth devoted to just TV. If everyone in a region drops traditional cable for IPTv they can easily switch to d4. D4 does increase upload but does not make it symmetrical.

    Your cable company does not decide their highest tier realistically. It’s the most that medium will offer. It’s gonna be a while too for d4 to be available everywhere. Everyone would need to drop traditional cable (which is honestly a nice move regardless) and people don’t upgrade plans very often. When I worked in tech support I would frequently deal with customers complaining about slow speeds while on plans from 2002.




  • Your electric bill absolutely will not go up by as much as your saving on gas. It’s tough to figure out how much because it depends on your electric rate and how much you drive as well as your charging habits.

    I charge my car to full every night and live in western PA, but not sure of what the rates are for electric. My bill is under $150/month though. Gas is almost $4/gallon. Before our first EV in 2018 we spent about $200 a week on gas and gas has only gotten more expensive. We spend less on Electric per month for the entire house (not just the car) than we did on a week in gas.

    As for long trips, that’s an area seriously lacking. I use ABRP which is a mapping software that uses your specific model, battery charge, distance, elevation, traffic, and weather to figure out when to charge and for how long. You can also link up a OBDII sensor to get live data for more accurate route adjustments. I’d recommend giving that a look and mess with different cars to see what cars fit the routes you drive the best.

    I drove to Kentucky from western PA and only had to stop three times for about 2 hours of charge total in a Kia Niro 2022 EV. But we then didn’t stop to eat at other times we would have because we stopped in places with restaurants so it wasn’t 2 hours lost.

    We also did a trip to Washington DC to see the pandas before they left and made it the whole way with no charge. We only had to charge on the way home.






  • I’m redoing a lot of the lighting so that’s not a project I’m afraid to tackle. Last owner loved florescent lights so we’re removing them from the bedrooms and bathrooms currently.

    Inside looks pretty much the same. My biggest fear is breaking it apart and not being able to reassemble it because it leaves a pretty big hole to get inside the house. If I can get in without breaking it I can fix whatever is in there.

    Not sure when the door was installed but the house is 1880’s so it has quite a span to be from. I doubt it’s original but it can be quite old.


  • I don’t think so. We found a mysterious wire in the basement that goes outside to nowhere directly below it. Either way that doesn’t work and I’m just trying to find the best/least damaging way to remove it.

    But it did cross my mind and I tested it with the switch on and off and it worked with neither. That being said I don’t think it’s an outdoor rated plug so it could just be bad either way.








  • Every form of production will have defects. The goal of perfecting production is one to be sought, but never achieved. We should always try to make food production more efficient with less loss, but there will always be loss, and always be waste.

    Even new means of production like lab grown beef can have waste and loss in batches that don’t “grow” properly because they didn’t mix hormones correctly or whatever. I actually don’t know how the science behind that works, but I do know it’s a process. And where there’s a process there’s room for error. That’s where we get loss from.

    We’ll never make something fool proof. Perhaps lab grown meats will be the most efficient form of product in that they have the lowest loss and production can be tweaked fairly quickly so there’s not a lot of loss and ramped up for shipments to areas with food shortages. Honestly, lab grown in my opinion has the best chances of being a major breakthrough but it’s still too early to be sure.


  • These companies are scum. I worked in a call center that contracted to together health. That’s the company that used Joe Nameth in their commercials. I hadn’t sold insurance before so I went through all the training and they paid to get me certified to sell in 15 states.

    Hit the phones and I just couldn’t sell for shit. None of us could. The whole Medicare thing in general is confusing as fuck and these seniors aren’t exactly all there in the head.

    They brought in the CEO. Idk if he actually was the CEO but they claimed he was. He gave us all a “prep talk” that amounted to “say whatever you can to get the sale and let our lawyers work out the legality later down the road”

    He wanted us to get people in strictly worse plans and find new doctors and everything for a quick buck. He was fully Willing to fuck elderly people for a paycheck. I didn’t listen. Tried selling by the book but I was always at the bottom of the barrel so I was trimmed off pretty quick and let go for “poor performance”. You wanna know who was getting all the sales? The fucking drug addict who OD’d in the middle of a sale on my last day and was carted out on a gurney. The same guy who was so clueless the day prior that he tried selling a health plan for a different company and had the gall to ask if he could sell it to them anyways.

    If you want a Medicare advantage plan (which some have some really good benefits if you get the right company) you can call the phone number on the back of your Medicare card and go over plans with them. They are only there to provide information, not sell. While they can enroll you, they do not make more to enroll you or if you hang up. They do not get commission from any health insurer or anything. It is a government office with a database with every health plan offered and they simply put in your location, doctors, meds and ask some basic questions. Then they give you options for Whats available and answer your questions.


  • Uprise42@artemis.camptoAsklemmy@lemmy.mlStar actually have colors
    link
    fedilink
    arrow-up
    10
    arrow-down
    4
    ·
    2 years ago

    Stars can appear red or blue depending on the direction they are traveling. It has to do with the frequency of light they put out. As they move away the frequency gets lower, which we interpret as red. As they get closer the frequency gets faster which we interpret as blue.

    I am not an astronomer or even a casual stargazer. I took a single class in Astronomy in college and this was a neat fact I picked up. I remember next to nothing else from the class other than the fact that you can fit every planet between the earth and moon.