It bugs me people think you need proof of work to run blockchains.
Brooklyn Bitcoin Mine Causes Static for T-Mobile Users
41–50 of 52 posts
Re: Brooklyn Bitcoin Mine Causes Static for T-Mobile Users
#42As a ham radio operator, this sort of thing is extremely common. Most cheap Chinese power supplies tend to broadcast a lot of noise. Nowadays, it's mostly impossible to operate the short wave bands in a city due to all the static on the air. The regulation agencies have pretty much given up, save for the most egregious cases, due to how prolific the problem is. It's pretty sad.
One might imagine with better technology, something like noise-detecting spread-sprectrum or automatic link establishment, along with advanced DSP filtering would be able to dodge these sorts of noise generators.
But no. The noise is omnipresent, and there's no way to escape it. https://apps.fcc.gov/edocs_public/attachmatch/DA-16-676A1_Rc...
Re: Brooklyn Bitcoin Mine Causes Static for T-Mobile Users
#43Somehow it doesn't surprise me that Bitcoin mining hardware is generating harmful RF interference. If I was a miner, I'd be quite worried that someone with direction finding equipment could easily discover a hidden mining location. The FCC or another government entity finding you is kind of the best case scenario if you think about it... :)
I have also thought about this. If you have a serious mining operation ($$$$$), you have armed security.
Re: Brooklyn Bitcoin Mine Causes Static for T-Mobile Users
#44People have been speculating about how someone can turn a profit with power rates in NYC. It’s highly likely that this guy rents an apartment that comes with power, or he rigged a connection to an outlet in the common area. I had friends who used to run hydroponics rigs in their apartments (for veggies!), it made sense because their landlord footed the bill. The only electricity cheaper than hydro, is electricity whe…
How much of the power used by something like this ends up as heat? The FCC notice says it was an "Antminer s5". A bit of Googling suggests it uses a little under 600 watts.
If most of that ends up as heat in his apartment, that could reduce his need for other heating which could offset some of the electricity cost, especially if that other heating is electric heating.
Re: Brooklyn Bitcoin Mine Causes Static for T-Mobile Users
#45Earlier quoted context omitted.
“Faraday cage complete protects the interior from external charges but does nothing to shield the interior from the external charges” What are you on about?
Basic electrostatics. >So for all intents and purposes, the cage generates the same DC electric field that it would generate if it were simply affected by the charge placed inside. https://en.m.wikipedia.org/wiki/Faraday_cage
I think what he means when he asked what you are on about is what is the difference between "protects" and "shields"?
You said:
> Faraday cage complete protects the interior from external charges but does nothing to shield the interior from the external charges
So you are saying that the interior IS protected from but IS NOT shielded from the exterior charges. Most people would expect "protected from" and "shielded from" to mean the same thing. Hence the confusion.
Re: Brooklyn Bitcoin Mine Causes Static for T-Mobile Users
#46I wonder if it wasn't the miner at all. Maybe the guy had an (illegal) cellphone jammer as well, and somehow managed to convince the feds that it was his antminer causing the trouble.
Looks like AntMiner S5 runs at 350Mhz, and this interference is at 700Mhz. Also 700Mhz in cell phones is relatively new.
Re: Brooklyn Bitcoin Mine Causes Static for T-Mobile Users
#47People have been speculating about how someone can turn a profit with power rates in NYC. It’s highly likely that this guy rents an apartment that comes with power, or he rigged a connection to an outlet in the common area. I had friends who used to run hydroponics rigs in their apartments (for veggies!), it made sense because their landlord footed the bill. The only electricity cheaper than hydro, is electricity whe…
How much of the power used by something like this ends up as heat? The FCC notice says it was an "Antminer s5". A bit of Googling suggests it uses a little under 600 watts. If most of that ends up as heat in his apartment, that could reduce his need for other heating which could offset some of the electricity cost, especially if that other heating is electric heating.
As there is no other energy output, all of it.
Re: Brooklyn Bitcoin Mine Causes Static for T-Mobile Users
#48Earlier quoted context omitted.
Heat pumps are more efficient. A miner makes an inefficient heater.
And heat pumps are more expensive to buy and impossible for a tenant to install themselves in an apartment they rent from, which is why people use small portable and cheap resistive heaters. And in that case, a miner is just as efficent if not more efficient since it's making the user some money (maybe).
First thing I found on Amazon US
https://www.amazon.com/Honeywell-MM14CHCS-Portable-Condition...
Portable heat pump + air con. I've had something like this before, typically comes with something to slot/seal up into a gap from leaving the window open. Can be moved between rentals.
Re: Brooklyn Bitcoin Mine Causes Static for T-Mobile Users
#49Earlier quoted context omitted.
Brooklyn apartments this time of year are often poorly heated. If you're paying for the electricity to run a space heater, it might as well produce bitcoins.
Heat pumps are more efficient. A miner makes an inefficient heater.
Efficient in what units? Heat pumps are more efficient in BTUs/kWh, but I doubt you've done the pricing to say they're more efficient in BTUs/dollar, because that's fairly complicated.
Re: Brooklyn Bitcoin Mine Causes Static for T-Mobile Users
#50Earlier quoted context omitted.
Heat pumps are more efficient. A miner makes an inefficient heater.
Efficient in what units? Heat pumps are more efficient in BTUs/kWh, but I doubt you've done the pricing to say they're more efficient in BTUs/dollar, because that's fairly complicated.
Sure, lets say $500 for a heat pump, $50 for a heater. Then what 'yield' are you getting on the $450. Let's say heat pump is 2x as efficient (should be understimate). Let's say that you run 2kw normal heater for 1 hr / day winter only for 3 months. That's 180kwh. @12c that's $21.6. So you save $10 a year. A 2.2% yield tax fee. So admittedly not great.
OTOH a mining rig, well who knows that IS complicated. You might lose money, or spend a lot of time tweaking but break even.