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anonymous_iam

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BladeRF is pretty cool. It doesn't have quite the frequency range of HackRF, but it's full duplex, and uses 12-bit ADC/DAC (vs. HackRF's 8-bit ones). Also it uses USB 3 so the bandwidth is not limited to 20MHz. (I think it's around 40MHz.)

Anyone know the story behind why baudline hasn't been updated in seven years? The site has promised a beta version with some highly desirable features for a LONG time, but nothing. Also, since it's closed source, there's nothing we can do but hope and wait (unless someone were to start an open source equivalent project).

The estimate for my house dropped by 25% in one month when the market was still rising. I'm assuming that the cause was the house next door which was in poor condition and was sold for about 20% below market value. The buyer put $100k into the house and is now selling it above market value ($200k more). It will be interesting to see what the zestimate for my house will be when the other house sells again. (It will probably sell within a month.)

Is it just a coincidence that Musk's main competitor in the space business is called "The Boeing Company"? I don't think so.

The article makes no mention of single event upsets (SEUs). These occur randomly when cosmic rays can cause a bit flip anywhere in the chip. ECC is a good way to mitigate SEU effects.

This is not a new thing. Decades ago when Verizon contracted with Microsoft to "upgrade" their web portal, it was no longer usable from any browser other than IE. I had been using it from Netscape on various SPARC machines and from my mobile device (PalmOS). The web page html source had no exotic platform specific language elements. It was obviously a "business decision". I wrote the VP at Verizon a letter pointing out that they had just abandoned 5% of their user base. I also switched to AT&T.

Generally the RTC in a computer is not as accurate as a typical wall clock or wristwatch. Although the RTC usually uses the same type of crystal as a watch, the circuit is not usually calibrated (tuned) as part of the production and test process. I have seen drift rates of up to 5-10 minutes per month on systems that aren't using NTP.

I did a similar comparison last year, but mine was for an embedded system with no FPP (MSP430). I was able to shave more than half of the average execution time compared to the (highly optimized TI) math library function. The only drawback to my method was that it would fail for input values greater than 255. Fortunately my application was guaranteed to never supply an input value greater than 240.

When I began reading the article, I was hoping it would detail their deceptive bandwidth management policies. I had the service for about 3 years (recently terminated) and found that speeds would slowly degrade over months. In the end my 200mbps service was giving me about 50mbps. The cable-modem link diagnostics indicated good signal levels and nearly non-existent error rates so obviously it had nothing to do with the cable plant.

[dead] 9 years ago

Just once I would like to see an objective article from The Post. Something such as the number of campaign promises kept by each of the last three presidents. Bezos pulled out all of the stops and ran hit piece after hit piece on Trump all through his campaign. In my view The Post has lost all credibility when it comes to political reporting.

[dead] 10 years ago

Most people who are uncertain are probably uninformed. Anyone who spends the time to do historical research on the candidates will have more than enough information to make a decision.