colsandurz
colsandurz on Hacker News
I don’t know about everyone else but I’m just so sick of Apple releasing marginally improved products, calling it their biggest update ever, and then jacking up prices. $700 for an iPad mini is absurd RAM price increases or not.
Just another reason to get a local model
Can I have a 4 day work week?
This comment is over-the-top mean and unfair.
Alex was my advisor in grad school and I only know him to be honest, hard working and technically sound. I haven’t read this book closely but I’m not convinced that it’s poorly written based on cherry picking one paragraph from it.
What’s the difference between this and Google Flu trends?
I work at a place with a flat structure and I can’t emphasize enough how true this is.
It’s especially noticeable when you’re not one of the in-crowd.
What’s wrong with giving people options?
What do we have Sheriffs? What do they do that local and state law enforcement don't do?
Not really. To geolocate a user the cell providers would need to know the absolute position of all the LTE repeaters and cells (which they might). But they'd also need to compensate for indoor propagation (which is much more complex than outdoor).
Also AGPS only provides satellite ephemeris, which enables a faster time to fix, not better accuracy.
A GPS repeater would only give accurate time, not position. The repeater only repeats the signal that's captured by the antenna on the roof. I use GPS repeaters frequently in my labs to supply timing to instruments.
Does this work with Apple Health?? Is there an easy way to get data out of Apple Health?
So the NSA is doing what they actually should be doing?
Would you ever be able to test two potential parents to see if they're both carriers for genetic diseases? Or, is that a completely different type of test?
And the square foot below me has 575x the density of Monaco and there are no problems here!
94% loss is only 12.2 dB (10 * log10(1-0.94) == 12.2)... not that much.
Also, where's the STL if I want to try this myself??
Not only that but APs usually have more antennas, which makes a huge difference. The antennas can also be spaced out more (for better diversity) and be physically larger (typically you get more gain the closer your antenna length is to the wavelength of the signal).
You can also have better analog RF components with more space (filters, LNAs, PAs, etc).
It's not necessarily true that the "advantage" of the AP is symmetric as well. The tx power is limited by FCC part 15 so the difference in tx power between AP and client is probably less than the difference in Rx sensitivity between the AP and client.
Even if the uplink and dowlink are symmetric, the traffic profiles are probably not - there's probably a lot more data going to the client.
Me too. Haven't missed it either.
So what's semiennial mean?
Software Defined Radio | Boston | Devin | dwwkelly at fastmail.fm
I program radios professionally and I've taught several short courses on SDR. If there's anyone in my area who's interested let me know.
What can I do about this?
Does anyone have any recommendations for a high sample rate microphone? Something that can do 120,000 samples per second or more? I don't need USB, really just the high sample rate.
How do I show the FCC that I care about this???
I've got a 3rd gen and I like except for button-less mouse, the weird touch-strip for the function key. They fixed both of these with the 4th gen though.
I use Arch and pretty much everything "just works," the camera, sound, wireless, etc.
In general Ettus is the best around unless you have a really large budget and want to get something with a backplane (which I highly recommend you avoid unless you have really specific requirements). Ettus is about to come out with a low cost B200 mini which could be a good option. I think it's so they can compete with the BladeRFs and HackRFs of the world. Ettus boards aren't perfect but they've really come a long way since the USRP2 days when I started using them. The UHD is also a really nice library to work with.
The RTLSDRs are definitely the best value (get one with a metal box around it). Also look for the HackRF Blue.
Finally, think hard about what you want to do. You mention decoding TV signals but the RTLSDRs can't do that (in America at least) since they can only do about 3 MHz of instantaneous bandwidth and TV signals are 6 MHz wide. You could try using 2 or 3 RTLSDRs for that but then you'd have put them all on the same clock, which can be difficult.
If you can spend around $1500 I'd go for a B200 with a GPSDO. GPSDOs let you accurately timestamp signals and time evens (i.e. start transmitting at some specific time). In my eyes the 210 isn't worth the bigger FPGA and dual transceivers. The isolation between the transceivers probably isn't great (but I could be wrong) and a bigger FPGA isn't worth anything to me.
This also isn't an artificial pancreas because you still have to wear an insulin pump and insulin pumps aren't artificial pancreases. To me, an artificial pancreas acts like the pancreas I already have - it monitors and excretes insulin so I never have to think about what my blood sugar is or think about it dropping low or spiking.
I second privoxy. I never see ads and the memory usage is low, 0.1% on my 8GB laptop. I use it along with polipo (a caching proxy).