* Posts by Jon Bar

14 publicly visible posts • joined 28 Jun 2011

Quirky QWERTY killed a password in Paris

Jon Bar

Re: All your QWERTY belong to us...

Sounds like the original programmers were working down at the BIOS level to intercept the keystrokes for the password before they were converted to ASCII. In which case, you'd better not make any typos when typing the login no matter what the keyboard layout or language installed were.

Not to dis your diskette, but there are some unexpected sector holes

Jon Bar

Re: Love "Duh!" moments! It's the techie life that chose me!

Can't remember where I first saw it, could have been SKB or GLS, but one of the absolute laws of programming is that it takes two people to debug any program, only one of whom needs to know what it does.

Are we springing into a Y2K-class nightmare?

Jon Bar

Re: How long until the US forgets DST ever existed?

Well, Marco RubiNO conveniently forgets that back in 1974, during the Oil Embargo, the US tried year-round DST. Lasted 2 years before that naff idea got deep-sixed. If he really wanted to make a useful suggestion (Oops, I forgot who it was, sorry!) he'd suggest year-round Standard Time. I was just getting to leave for work in some semblance of light; now I'm back leaving in the dark - and I was VERY LUCKY to see the genius in a dark coat and slacks running across the middle of a 4-lane road before I hit her. I'd suggest that we shift the US time zones to start with Atlantic (GMT-4) so we get daylight more of the morning hours. Hawaii isn't connected physically to any other part of the US, so they can do as they please.

FYI: Catastrophic flooding helped carve Martian valleys, not just rivers of water

Jon Bar

Re: Olds?

When I was in grad school in geology back in the mid-'70s one of the professors in the department had NASA funding to study earth-analogues of Martian fluvial features. The features of interest were predominantly fluvio-glacial (jokulhlaups) in origin, so much the type of processes this article's ascribing the features to.

I haven't bought new pants for years, why do I have to keep buying new PCs?

Jon Bar

Re: SSD

As far as I'm concerned, any HP computer newer than the Omnibook 800 is "Not Fit For Purpose". I have pretty much the same view of Acer. Just finished dealing (via remote control) with my sister's dead HP, which she told me she (her husband) was going to try to resurrect with a new HDD and the recovery USB from her previous Acer. Why don't they ever listen?

Pizza and beer night out the window, hours trying to sort issue, then a fresh pair of eyes says 'See, the problem is...'

Jon Bar

Re: Proof reader

My father was a design engineer for Boeing Vertol. He used to get my mother (a social worker) to proof the operators' manuals for the helicopters for much the same reason.

Or, as my classic debugging maxim has always been (can't remember if I owe it to SKB or GLS) "It takes two people to debug any program, only one of which needs to know what it's doing."

OK brainiacs, we've got an IT cold case for you: Fatal disk errors on an Amiga 4000 with 600MB external SCSI unless the clock app is... just so

Jon Bar

Re: Which reminds me of an AI koan ...

My wife used to handle computer support for a large consulting firm (which has since been absorbed, and shredded, by a misguided management of what used to be a good computer manufacturer). One time when she was called to solve the luser's problem everything worked fine for her, and continued to. The user, of course, asked what she did, to which she replied "It knows Mommy's here."

Confirmed: Bezos' salvaged Saturn rocket belonged to Apollo 11

Jon Bar

Re: If the Cosmosphere were on I70....

US routes maintain their identity even when they cross state boundaries; for example US 1 runs from Maine to Florida with a consistent designator. You don't need to worry about following (arbitrary numbers for purposes of the example) PA (Pennsylvania) 234 and discovering you're on MD (Maryland) 345, or worse, an unnumbered, named street when you cross a boundary. Maintenance for state, US and US Interstate routes is largely handled by the individual states, with varying degrees of federal (US) funding.

ICANN puts Whois on end-of-life list

Jon Bar

Um, yeah, No.

I moderate on several forums and I use "whois" to track down spammers (in order to ban their sorry arses) and to find out banned members who are trying to sneak back in. Both of those instances are certianly violations of the ISP's Terms & Conditions; that should be something ICANN should encourage people to use. Or maybe they want the cash pool of people registering new bogus domains so they can spam more freely.

LightSquared sheds a lonely tear as Sprint legs it

Jon Bar
WTF?

Robust?

Robust has never been part of the Lightsquared plan. Loud, maybe. But they've never done more than try to shout doen people who objected to their efforts to trample others. And now they're getting trampled, in poetic justice.

LightSquared blasts GPS naysayers in FCC letter

Jon Bar

Lightsquared is completely in the wrong . . .

DOD was one of the earliest objectors to LightSquared. The full details of their tests are, naturally, classified.

LightSquared wants to use, for terrestrial purposes, a band that is internationally set aside for satellite use only (at substantially lower power levels than LightSquared wants to use on the ground).

The precision GPS users (military, aerial navigation, precision agriculture, civil engineering to name a few) are the worst-impacted, and they're using multi-thousand-dollar receivers, usually many of them.

Glonass and Galileo are affected too, as they use the same part of the spectrum that the American NavStar GPS uses. And if LightSquared manages to pull this off, count on them, or competitors, to want to go world-wide with this, so don't pretend that an ocean makes you safe from this.

LightSquared is most analogous to light pollution. You may not notice that you can't see as many stars when that street light goes up nearby, but when they build a brightly-lit shopping mall there, you'll start to see. And the astronomers would have noticed the street light. Precision GPS is the astronomers in this case. Give LightSquared what they want and you'll start to see the problems yourself. Tests to date haven't used the full spectrum LightSquared wants to use, haven't used their signal at full power, and have only used a single tower, not the forest they want to build. And they're still showing massive disruption to the adjoining frequencies.

LightSquared faces challenge from the House

Jon Bar

LightSquared Tests

You can find a number of links to articles and webinars on the LightSquared tests at GPSWorld, http://www.gpsworld.com. I posted the link earlier. The webinars can be accessed at: http://www.gpsworld.com/webinar

Jon Bar
FAIL

They've been testing for interference

There's a series of tests being run, which LightSquared is a party to. And LightSquared's test tower is interfering with precision GPS systems over ranges of miles, not yards. That's interfering with as in "rendering completely useless", not as in "causing a couple of meters inaccuracy". And these results are why LightSquared's under attack. Currently there are no other systems of comparable power output anywhere near the frequencies used by GPS (be it NavStar, the US system, Glonass, the Russian system, or Galileo, the European system).

Jon Bar

LightSquared

LightSquared has consistently, since the new management came on board, misrepresented its plans. The original proposal in 2003 was for a satellite-based system with a few land-based low power towers, using power levels that were on the order of those used by NavStar, Galileo and Glonass GPS satellites. Only last November did they formally propose to to the FCC that they change their operating mode to a land-based system with very high power levels. The initial tests showed significant interference to precision satellite navigation equipment and also revealed that the LightSquared towers that were used in those tests weren't even using the full power or frequency range that LightSquared now wants to deploy. For more: http://www.gpsworld.com/