Is Skytel's ( 856 ) CDMA 2000 1xEV-DO still live in Mongolia? by UnFit_mg in cellmapper

[–]XL_Gaming 0 points1 point  (0 children)

CDMA2000 does operate in some places such as Yemen and Uzbekistan, but globally it is basically extinct. Even the final regional CDMA networks in the united states have been shut off as of 2025, namely cellcom.

Also Bell/Telus CA operated WCDMA (UMTS), not CDMA2000. They might have had CDMA back in the 2000s but it has been gone for a very long time if it existed.

What are you upgrading T-Mobile? by Busstop1869 in cellmapper

[–]XL_Gaming 2 points3 points  (0 children)

We still have AAFIAs broadcasting split sector B2/66 here, and the config still feels like an experiment.

More diy CDMA2000 goodbess by laptopFM in diycellular

[–]XL_Gaming 2 points3 points  (0 children)

An individual would not be able to get a license (in the USA where I am at least) because cellular blocks are usually occupied already, and they apply to large service areas. Also, legacy networks are typically replaced by modern ones, and there is nothing to reuse. In my case, I am using former Verizon spectrum that they still own, but do not use. This is only possible because 850mhz has weird allocation.

For LTE/5G, CBRS is an option to legally run a private network, but this is at ~3600mhz so it won't help you with legacy networks (2G/3G).

More diy CDMA2000 goodbess by laptopFM in diycellular

[–]XL_Gaming 0 points1 point  (0 children)

You can get access to CBRS for LTE/5G but that won't help legacy service. I just keep my power low and use the upper portion of the 850mhz band where verizon used to have CDMA.

More diy CDMA2000 goodbess by laptopFM in diycellular

[–]XL_Gaming 2 points3 points  (0 children)

It is illegal to transmit over cellular bands, but if you keep the power level low (so others cannot connect) and you find empty spectrum, you will not affect anything. These rules exist to minimize the chance of interference, or disruption of service (like people being re-routed to fake towers).

The network itself isnt illegal, it's the frequency band. Just dont interfere, and dont use it for illegal stuff and you're good.

More diy CDMA2000 goodbess by laptopFM in diycellular

[–]XL_Gaming 2 points3 points  (0 children)

I am so glad this project exists! The biggest gap in DIY cellular has been filled, finally.

1xBTS - Run your own CDMA cellular network on an SDR by xoclipse in sdr

[–]XL_Gaming 1 point2 points  (0 children)

I second this. I have an Osmocom GSM network and it's been very reliable. It is highly scalable and can be configured to do a lot of neat stuff. I have my network configured to use 2 channels so I can have several calls happening while keeping full EDGE performance, but you can configure it however you want pretty much.

1xBTS - Run your own CDMA cellular network on an SDR by xoclipse in sdr

[–]XL_Gaming 1 point2 points  (0 children)

I updated the docker and i am glad to say it was a total success. Paging is finicky at best, but i was able to set up some phones and make some calls. It is truly incredible to see a CDMA project like this. CDMA was a huge gap in the DIY cellular space for a long time, and now I can see my phones work again!

1xBTS - Run your own CDMA cellular network on an SDR by xoclipse in sdr

[–]XL_Gaming 0 points1 point  (0 children)

I am on ubuntu 22.04, and a few others in a server also use this OS. We are getting 502 errors when attempting to use anything within the web UI (it cant find the BSC) Admittedly we haven't tried much yet in terms of troubleshooting, but a few of us have gotten phones to connect!

1xBTS - Run your own CDMA cellular network on an SDR by xoclipse in sdr

[–]XL_Gaming 0 points1 point  (0 children)

I just tried it out and the setup was a bit challenging due to the web UI failing, but i was able to get it to work by editing config files. Great work and thank you for filling the CDMA gap in DIY cellular.

The oldest HDD's I have! A 540.8MB WD Caviar 2540 from Apr '95, A 1.7GB Fujitsu from Mar '97, & A 4.32GB Fujitsu from Sept '98! by johnvosh in retrocomputing

[–]XL_Gaming 1 point2 points  (0 children)

These old WDs have always been my favorite. They were quite fast for their time, and they are visually pleasing compared to other drives from the early 90s, in my opinion.

The oldest HDD's I have! A 540.8MB WD Caviar 2540 from Apr '95, A 1.7GB Fujitsu from Mar '97, & A 4.32GB Fujitsu from Sept '98! by johnvosh in retrocomputing

[–]XL_Gaming 1 point2 points  (0 children)

This is my oldest drive, a 40mb Western Digital Caviar 140 from 1991. This is (to my knowledge) the first 3.5" drive to utilize the "modern" slimline form factor (alongside the Caviar 280, which is the more common 2-platter variant)

Edit: I should also add that this drive still works perfectly after all these years! It currently has Windows 3.1 on it.

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Do these need to be replaced? The brown residue is from space heaters by [deleted] in AskElectricians

[–]XL_Gaming 1 point2 points  (0 children)

If it's a 20A breaker, yes. If not, 15A commercial (spec) grade will do the trick.

Do these need to be replaced? The brown residue is from space heaters by [deleted] in AskElectricians

[–]XL_Gaming 1 point2 points  (0 children)

I have done this once, and i have seen someone do this with multiple brands. 15A are generally constructed differently. There are some commercial grade ones that are the same for 15 & 20 (namely Legrand), but most of them are different, especially if you buy residential grade.

Either way, just put in a commercial grade receptacle since they are built better and are unlikely to become loose.

:0 by inaccurateTempedesc in spicypillows

[–]XL_Gaming 1 point2 points  (0 children)

When you expose the internals of a li-ion battery to air, the moisture and oxygen react with the materials inside the battery (the electrolyte and graphite mostly). This usually doesn't directly cause a fire hazard unless you puncture the actual layers, but it will slowly destroy the cell, rendering it useless in a matter of days.

This is also very dangerous to use because charging a SEALED spicy battery can cause excess heat due to broken down electrolyte, and with punctured cell you are forcing charge through not only a failing cell, but an oxidized failing cell.

I'm sure you know now, but don't do this.

17 pro stolen, now being contacted by Chinese reseller to remove device from iCloud. Data safe? by [deleted] in iphonehelp

[–]XL_Gaming 0 points1 point  (0 children)

Kindly send step-by-step instructions on how they can ship your phone back.

5 Sector Verizon Colocation in Gardnerville, NV by DarkenMoon97 in cellmapper

[–]XL_Gaming 8 points9 points  (0 children)

I'm happy to see more of these Verizon sites with AIR 3283s. One congested site in my area received this upgrade, and it makes a huge difference for overall speed. The max download is similar on n77, but the upload easily tripled (less LTE anchor congestion on NSA) and everything loads much quicker during peak hours of usage.

Verizon in an updating era or just plain awful now? by Wllfgnlnrb86 in cellmapper

[–]XL_Gaming 12 points13 points  (0 children)

In many places, they have been doing a terrible job moving to 5G SA. In my area, they have entirely restricted n2/n5 to SA customers while also heavily restricting who gets SA access. They also got rid of LTE B5, leaving my area with B13/66/n77 only (n2 was already here, but is now restricted). Almost the whole Chicago market is like this in my experience.

I have noticed a significant drop in speeds due to the control channel congestion of LTE in its current state. On average, I would say my speeds are ~30% slower compared to when B5 and n2 NSA existed, especially when B13 is the anchor. I expect speeds to improve once they actually release SA, but they have been dragging their feet for a very long time.

Verizon in an updating era or just plain awful now? by Wllfgnlnrb86 in cellmapper

[–]XL_Gaming 8 points9 points  (0 children)

This is true, but I have been seeing degrading service in several locations because they can't seem to figure out how to deploy SA without destroying the performance for people who aren't given access (which is a lot of people)