mungewell

Agents of the Revolution
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Everything posted by mungewell

  1. Hi, I don't know for certain, but I would assume that the RF signal generator can provide for modulating the output (in different modes ie. AM, FM, NFM, etc) from a secondary input. Example: http://www.testequity.com/products/1405/ The function generator almost certain has the ability to generate different types of waveform, if it's an 'Arbitrary Waveform' one you'll be able to output any waveform you choose (given a limit on the number of samples/maximum frequency). Munge.
  2. Funny and spot on. Occasionally I [have|volunteer] to give presentations and attempt to keep them simple and clean. I came across this podcast (http://www.manager-tools.com/complete-index) which is quite informative. The 'Presenting with PowerPoint' was very helpful. The 'Secrets of a Great Handshake' was just bizarre.... Munge. PS what does using 'Gentium' (http://scripts.sil.org/cms/scripts/page.php?site_id=nrsi&item_id=Gentium) say about me?????
  3. While looking for an RTC I found this 'LEET' chip: http://datasheets.maxim-ic.com/en/ds/DS1337-DS1337C.pdf Mungewell.
  4. Winmodems are the devil's spawn..... but this might help: http://www.linmodems.org/ Mungewell.
  5. Its a shame the article didn't include a circuit diagram, this would make it easier to understand.... see http://www.nirvis.com/mixers.htm The main reason for a resistors in a passive mixer is to prevent 'shorting' the two outputs from the sources (Xbox and PC in this case) together. Think of the outputs providing a voltage level (but changing really quickly) at a moment in time one might be +1V whilst the other is -1V connecting these together would be 'bad' ('don't cross the streams' you know!). The resistors provide a resistive load so that the outputs are not overloaded, the output of the mixer will be half way between the 2 inputs. The resistors will attenuate the signal levels, but that should not be a issue when using amplified PC speakers. Munge.
  6. This is the root hub of the system, it appears that you don't have any USB devices connected. When you run the command as a 'mere' user you don't have permission for all the information. Run the command with 'sudo lssub' (it will ask for your password) and there will be no error. Try something simple like a mouse or keyboard (these are HID devices and almost certainly supported). Things like wireless dongles, may show up in 'lsusb' as just numbers which generally means they aren't supported. Good luck, Mungewell.
  7. There is a useful bootable CD which contains a whole load of utilities, some of which are disk wipers... http://www.ultimatebootcd.com/ As an extra note, when I read your posting I thought you might be talking about clearing re-mapped sectors which I don't think any of the utilities actually consider. Modern hard disks have spare space on them which are unallocated. As the drive detects failing sectors they auto-magically remap these to use the spare space. So in theory there could still be data on the drive even if you successfully clear the 'whole' drive as these previously used blocks will not be accessible through the usual drive access stuff..... Just a thought.| Munge.
  8. There is a Debian package (live-helper) which will create a LiveCD (or USB image) from the standard repositries or custom/specific repositries, and makes custom CD a snip.... More details: http://wiki.debian.org/DebianLive/Howto/ISO Munge.
  9. It sounds like you've already requested a copy (or more) from Ubuntu's ShipIt site, who post them for free: https://shipit.ubuntu.com/ Local LUG's (Linux User Group) are another place to get distro's. You'll probably find someone who'll burn you a copy. Munge.
  10. I have seen that it appears to freeze when downloading the language packs, although I think this is later than you are suggesting. You can skip this stage, one of the buttons says 'skip'.... I had problems with dapper that the ATI drivers would crash during installation, you could try dropping to Vesa if this is the case. Munge.
  11. I believe that they're actually doing substantial damaged to the concept of DRM. The AACS is running around doing: 1). Saying 'You can't tell anyone this sequence of 16 bytes!'. 2). Saying 'We're revoking these Pirate keys'. I have not seen the connection made in the main stream media, but once some clearly states that the AACS can effectively stop your HD-DVD player working on newer HD-DVD titles, who in their right mind is actually going to spend upwards of $600 on a peice of hardware which might suddenly become useless? If the opponents of DRM really want to make a point they should be focusing on releasing the hardware key from a Sony [or other mainstream hardware player] which will *REALLY* mess with the AACS. I guess this could either be done with reverse engineering a player, or by brute forcing a particular title. How long would brute force take with a distributed system? The moment they revoke a hardware player key they will kill the HD-DVD industry.... Munge. PS. They have already done significant damage to the industry with the 'Down sample on non-HDCP outputs'. The people who spent shitloads on the bleeding edge HDTV are probably not happy....
  12. Just to clarify; it is the AACS Licensing Authoritity which is issuing these take down notices, not the MPAA. Realistically they have no choice, their whole existance (pointless as it is) depends on the AACS encryption scheme being used on HD-DVDs. If the studios decide not to encrypt (as if!) they loose their jobs. Watchout, they're coming for you! http://news.bbc.co.uk/1/hi/technology/6623331.stm Mungewell [Pedantic Little Shit].
  13. Voted Debian, but run Xubuntu on my underpowered laptops as I wanted (easy) access to newer applications. Munge.
  14. Appologies for saturating this thread.... but browsing Hack-a-day around the subject there a link for hacking into OnStar units to get GPS data out. http://members.cox.net/onstar/ Me thinks it's time to take the soldering iron out to the truck. Mungewell. PS. Might just be a really cheap source of GPS units, just head down to the breaker's yard. Though don't forget to find the GPS antenna as well....
  15. Not exactly 'built from scratch' as he (or she) uses a GPS module. Credit to packaging it up and writing a user app though. Mungewell.
  16. The way GPS works is that there is a psuedo random signal containing a time stamp transmitted from all satellites on a given frequency (L1=1.575GHz). The GPS unit has to receive these signals, phase lock onto them and then calcaluate all the possible locations (accounting for interger ambiguity) that the receiver could be and disregard the obviously wrong ones. After a lot of maths an answer pops out in UTM, which then has to be converted to local reference system. Obviously this isn't that easy.... but I guess if you have a suitable RF front-end/antenna you could do all the math in software. If all you're wanting is a rough (10ft - 100ft) precesion then I would suggest buying a second hand USB device off ebay, or a old handheld. The yellow etrex are basic, but perfectly functional to war drive/geocache with. Even damaged handhelds (i.e. cracked screen, etc) may be good fodder for your project. Almost all GPS receivers have a NMEA output, which is simple serial strings containing information on location/heading/speed/etc... and can easily be parsed. Mungewell.
  17. This page may help you.... "Mini-howto on Flashing Intersil Prism Chipsets" http://linux.junsun.net/intersil-prism/ Have fun. Mungewell.
  18. The guy who does the cryptophone project did a talk at Hope 6, see: http://www.hopenumbersix.net/mp3/16/cryptophone.mp3 http://www.hopenumbersix.net/pls/16/cryptophone.pls He also mentioned the benefits of bugging the microwave links from remote cell towers, as a way to get to a bigger stream (ie. all the calls from the various cells around a town). Munge.
  19. They seemed to have missed one option for the hardware to hack. GSM data cards - the PCMCIA variety which are used for GPRS access. They basically are a GSM phone without display and keypad and in theory could be used to place an audio call. Mungewell.
  20. Bluetooth is designed to work in the proximity of other bluetooth devices. It uses a spread spectrum signal to minimise interference and automatically 'frequency hops' on 79 channels (between 2.402GHz and 2.480GHz). Later revisions (2.0) introduced adaptive hoping, so the hoping sequence could be tailored to additionally minimise interference. My view is that 'they' are full of BS. What's the betting that 'they' are also running 802.11b/g, cordless phones and microwave ovens at the same premises... Mungewell.
  21. Well if you normally heat your house with electricity you're no worse off (appart from the addition noise of all the fans).... Mungewell.
  22. They are often a better solution than 'more power' as it's really the noise floor on the reception end which limits how far you can transmit. However greater gain requires more precise aiming and mounting. I found this great online book (http://wndw.net/) which describes how to do a proper link budget: http://wiki.wndw.net/moin/English/Chapter3...b1942976342a8d2 Cheers, Munge.
  23. How about a portable USB/Firewire drive embedded in the contrete floor, running encryption with a random key generated at boot time....? 1) They kill the power the data is gone. 2) They can't get physical access easy. Seriously though is the data THAT secure, or is this a hyperthetical question? Munge.
  24. Free Version: * Microsoft Windows® Not Needed :-) Looks like a pretty good system, and not a bad price for a complete solution. Not much info on the website (didn't register to see if there's more there), but it seems to be Debian based (sarge?) and is running Mozilla Firefox 1.0.4. Hope this works out for you. Munge.
  25. Fairly sweet idea... but this distro is a little out of date - Firefox 1.0!!! Depending on how much effort you want to put in you could roll you own 'Live-CD' and use the same CF idea. With Debian there is a live-cd tool which can turn your current Debian install into a Live-CD with almost no effort, so this would enable you to track security updates quite easily and roll a new revision when needed. If you were being completely paranoid, you could even add a write-blocker to the IDE interface to be really sure the CF couldn't get corrupted. Glad you could make use of Free/OpenSource, Munge.