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<J_P> hi all
<J_P> SteveWrightNZ: remember when I do question about DGPS(base in linux box) ?
<SteveWrightNZ> hi J_P.. yes
<Myself_248> oh not this again
<SteveWrightNZ> hey, be nice
<J_P> SteveWrightNZ: I need do correction online(real time) from BASE in other linux box with GPS ?
<SteveWrightNZ> yes
<Myself_248> last time, it was 100% composed of questions that would've been answered by reading the dGPS FAQ.
<SteveWrightNZ> Myself_248: yeah this is true
<J_P> SteveWrightNZ: I think in use GPRS for this online correction..
<J_P> SteveWrightNZ: or internet... have anyone problem /
<J_P> SteveWrightNZ: I think gprs have some delay..
<SteveWrightNZ> I havent tried that.. but it should be ok
<Myself_248> There are internet dgps systems. But if you already have WAAS in your receiver, it's not needed.
<J_P> i go use GPS in linux box and do correction online via GPRS or CDMA 1x
<Myself_248> What does that gain you that WAAS doesn't already do?
<J_P> SteveWrightNZ: i test in gprs have much more latecy than one 256k internet..
<J_P> Myself_248: what is "WAAS" ?
<J_P> s latecy/latency
<Myself_248> Google "GPS WAAS".
<J_P> ok
<Myself_248> It's dGPS correction signals, sent down from a pair of geostationary satellites. They're on the same frequency as regular GPS, so an old receiver can pick them up, with new firmware.
<J_P> Myself_248: so not have problem use GPRS link for do correction ?
<Myself_248> You don't need *any* link for corrections. The corrections come in along with the regular signals.
<J_P> Myself_248: but if I have one simply USB GPS, then o need one link to BASE(DGPS) for do this correction right ? And another case is my box with GPS are constantly motion, never stop...
<Myself_248> I give up. Read the FAQ.
<J_P> Myself_248: please, paste agaim FAQ for me ?
<Sweeper> maybe the one in the TOPIC?
<Myself_248> http://gps.faa.gov/FAQ/faq-waas.htm http://www.garmin.com/support/faqs/ http://www.gpswaypoints.co.za/FAQ_waas.htm
<Myself_248> Nah, that's the #wireless faq, and he needs the GPS/WAAS FAQ.
<J_P> Myself_248: ok, thank you!
<Myself_248> http://gpsd.berlios.de/gps-hacking.html http://gps.gov/gps/WAAS-DGPS.htm
<Myself_248> (All this is in the first 2 pages of a Google search for GPS WAAS FAQ, by the way. You should've done that.)
<Myself_248> http://users.erols.com/dlwilson/gpswaas.htm
<J_P> sorry, becouse I was find somethink very simple explaim, becouse english not is my native languave.. but not problem I go read all that anyway! thanks
<J_P> Myself_248: yes, I see last two link yesterday... veru nice, thank you for your help... :-)
<dtm> is anyone big on tranzeo here? i'm trying to gauge the feasibility of a screen scraping monitoring app
<esac> anybody know what the diff is between wpa_supplicant and xsupplicant?
<T`> Myself_248, read your reply last night.. yea, i was at first sceptical about the chipset's ability, but i posted to their mailing list (zd1211 dev) and someone replied it could act as one.. so i'm kinda stuck with why I'm not seeing any beacon broadcasts
<T`> Myself_248, thanks btw :-)
<J4k3> Myself_248: they're not using it anymore... there was an electrical availability crisis there for a couple years, now they literally sit next door to a substation + high tension lines.
<J4k3> ;)
<pileofbones> i live near those things
<Myself_248> ahhh, well hell, pick up that generator! Sounds like a fun project.
<pileofbones> they shouldn't be putting them up near houses
<pileofbones> the towering metal ones
<J4k3> and yeah, I inquired about the engine... the cranshaft is cracked and the manufacturer insists they replace the entire rotating ***embly at the same time
<J4k3> from pistons to front/rear seals :P
<J4k3> basically they went from having a tugboat engine to having a boat anchor :)
<Myself_248> I don't blame them, a cracked crank could've damaged all sorts of bearings.
<T`> does anyone here have a Airlink+ zd1211 (zydas) based wireless usb stick?
<J4k3> Myself_248: yep... the broken rod managed to fly straight out one of the explosion plates
<furrywolf> if the crank cracked, all that is going to need replacing... seals, etc you always replace when the engine's apart, and the bearings may well be toast.
<pileofbones> are the explosion plates supposed to stop projectiles?
<furrywolf> no; they're supposed to pop in a crankcase explosion in a reasonably gentle, directed away from people manner
<furrywolf> rather than the crankcase fragmenting
<pileofbones> how do they know where the people are?
<furrywolf> as in, not aiming them at the controls, but instead towards bulkheads, etc.
<Myself_248> "down" is generally a good direction.
<furrywolf> depending on the engine, it might also have giant flapper-like valves designed to vent a small explosion with no damage, but preventing fresh air from being ****ed in, causing a secondary explosion.
<Myself_248> I've never heard of a crankshaft explosion. I guess blowby gases would be combustible, but.. why don't we ever hear about that in cars?
<furrywolf> crankcase explosions are Bad Things (TM). :)
<T`> Myself_248, does it matter if i use hostAP or just wireless tools to setup an AP ?
<J4k3> furrywolf: thats exactly what it has
<T`> Myself_248, i just set my wlan0 interface in master mode.. with wireless tools.. was wondering if that is enough to broadcast a essid
<Myself_248> T`, I'm a Win-weenie, can't help ya there.
<T`> uh ok
<esac> anybody have any success in setting up xsupplicant or wpa_supplicant with authenticating to a microsoft IAS server ?
<T`> anyone else can answer that question please?
<furrywolf> usually it's not blowby g***es (all real engines are pressurized crossheads anyway), but a hot spot (worn bearing, etc) vaporizing oil.
<furrywolf> cars don't have nearly the crankcase volume, and aren't crossheads, so are usually continually ventilated.
<furrywolf> no blowby gets to the crankcase on a crosshead engine
<Myself_248> "crossheads"? I'm familiar with the PCV system..
<pileofbones> do turbochargers ever blow up?
<pileofbones> or does that valve thing save them from such a fate?
<furrywolf> crossheads use a separate bearing to translate the up and down motion of the piston into the reciprocating sideways motion of the crankshaft, to eliminate side loads on the pistons.
<J4k3> turbos will over-spool and slag bearings
<J4k3> I've never heard of one 'exploding' in the typical sense
<furrywolf> the piston rod moves straight up and down with no side-to-side movement through a seal, then to the crosshead bearing, which has the connecting rod to the crankcase.
<Myself_248> The combination of a wastegate and blowoff valve, working properly, should keep the turbo sane. If your blowoff valve is set wrong, your turbo's intake side, or intercooler, could explode. If the wastegate is set wrong, the turbo's rotors could fragment.
<furrywolf> because of the separate seal (and sometimes measures such as a dual seal chamber with the inside preasurized), no blowby gets to the crankcase.
<Myself_248> Oh, so it's like on the old steam engines, there's a secondary mechanism to take the side-to-side motion away from the piston itself.
<furrywolf> yes
<pileofbones> why would a crankcase blow-up?
<J4k3> if you wanna slag a turbo quick
<J4k3> drop marbles down the intake
<J4k3> ;)
<pileofbones> what does slag mean?
<furrywolf> pileofbones: as I said, a hot spot (a worn bearing, some metal contamination on a rotating part, etc) causes oil to vaporize, and the same hot spot then ignites it when it gets to the LEL...
<furrywolf> ruin
<J4k3> slag as in 'destroy'
<furrywolf> newer engines have oil vapor alarms that either sound sirens or directly kill the engine if they detect buildup in the crankcase
<Myself_248> "slag" is the dross left over from metal ore refining. It's a general term for useless metal.
<pileofbones> i think there's a crankcase pressure gauge?
<pileofbones> cause i saw one somewhere but i forget where now
<pileofbones> i think it was inside a race car
<furrywolf> haven't seen one of those
<pileofbones> it's just a strain gauge for monitor pressure inside of the crankcase
<Myself_248> It's not the worst idea. I've heard of pressurized tube frames too, a pressure loss indicates a crack somewhere.
<furrywolf> don't forget we're talking about marine diesels here, and the crankcases can easily be larger than my bedroom. lots of explosive power. :)
<pileofbones> does the oil temp gauge measure inside the crankcase or some other part of the oil system?
<furrywolf> depends on the engine, I'd guess.
<furrywolf> might grab it from the oil pan, or after the oil pump.
<pileofbones> do you think a hotspot could show up on the temp gauge?
<furrywolf> no
<furrywolf> we're talking, say, a tiny bur of metal stuck in a bearing
<pileofbones> oh
<furrywolf> it's not going to have any effect on engine operation or temperature, but it's going to heat up glowing hot and vaporize oil that touches it.
<furrywolf> eventually the oil vapor will reach its lower explosive limit, at which point said hot spot can ignite it
<furrywolf> most engines have blast panels that let a shock wave blow out, hopefully with minimal damage, then seal tight to prevent fresh air from being ****ed back in. if it's allowed to such fresh air back in, it can cause a secondary explosion, sometimes a fair bit larger than the first.
<Myself_248> I'd think that blowing exhaust through the crankcase would make sure there's not much available oxygen. :)
<Myself_248> But that probably has its own set of problems, like moisture condensation.
<furrywolf> also contamination of the oil with fuel impurities, etc.
<esac> anybody have any success in setting up xsupplicant or wpa_supplicant with authenticating to a microsoft IAS server ?
<amimusa> hello, can anybody help me to use a wireless connection ?
<amimusa> i have this
<amimusa> 0000:02:00.0 Network controller: RaLink Ralink RT2500 802.11 Cardbus Reference Card (rev 01)
<amimusa> manou@nomada:~$ iwconfig
<amimusa> lo no wireless extensions.
<amimusa> eth0 no wireless extensions.
<amimusa> sit0 no wireless extensions.
<dragorn> sounds like you haven't installed the drivers. google for drivers for the rt2500.
<dtm> does anyone here use tranzeo gear? cpe200 namely?
<DrDT> I've hard things about tranzeo... good quipment, but a number of bugs that support won't even admit exists, even when explicitely pointed out
<dtm> DrDT: yes such as complete lack of snmp reporting ;)
<dtm> which is why i'm reverse engineering their web gui
<dtm> all the web gui reports is signal and noise pretty much
<dtm> but that's better than nothing
<udtst> I have a question. what would be the best antenna to build if I wanted to send a 2.4ghz signal anywhere between 3-5 miles?I am new to the citywide wifi thing and am not sure which homemade antenna I should foucus on.
<dtm> DrDT: i called tech support and had them issue a wishlist request
<dtm> DrDT: they have intentionally obfuscated the contents of the web gui, incredulously, using a primitive but obscure encoding technique
<dtm> so the embedded web server gets the radio data, encodes it, sends it encoded, and sends the javascript needed to decode it.
<dtm> pure bull****
<dtm> so you gotta have a javascript engine *just* to read a single number.
<dtm> now what in the HELL kind of advantage does that give their business model?
<dtm> they dont even have a remote monitoring/mgmt app!!!!
<dtm> WHY would anyone do that ?! :)
<DrDT> udtst: if you're new to wifi then building an antenna may not be a great idea... you can spend hours to make something that's essentially worthless (a few mm can make a huge difference)
<DrDT> if you really want homemade a cantenna can usually be made without trouble
<DrDT> making it go 3-5 miles is possible, ***uming one at both ends, but not guaranteed
<udtst> ok.
<udtst> what would you suggest I do? what would be best if I wanted to sent up a community wifi then? go all pro gear?
<jdhutchin1> well, yes, get good gear
<jdhutchin1> the biggest thing with longer-distance wifi links is Line of Sight
<jdhutchin1> (LoS)
<jdhutchin1> if you don't have it you're pretty much screwed
<udtst> could I use a linksys router with pro antennas running from a pigtail or do/should I bye a better router?
<udtst> cause I ahve 2 wrt54g linksys wireless routers right now
<udtst> have*
<jdhutchin1> not really
<jdhutchin1> linksys stuff has problems with timing issues as distances go farther
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