3 ms·
One interesting thing we discovered about IPXs late one night in the lab is that they're FCC Class A devices -- that is, they didn't have the same level of RF s
by jonburs 15y ago
One interesting thing we discovered about IPXs late one night in the lab is that they're FCC Class A devices -- that is, they didn't have the same level of RF shielding as consumer Class B gear. How did we exploit this? The memory bus timings happened to be in the FM radio range (~90-110 MHz), so by copying buffers in tight loops we were able to create a tone generator with a 10-20 foot transmit range.
I do hope the professors with nearby offices (and conveniently with radios on their desks) enjoyed our looping rendition of the Close Encounters of the Third Kind theme when they came in the next morning.
- furyg3 15y agoThese IPXes were very cute... http://www.obsolyte.com/sun_ipx/ http://www.obsolyte.com/sun_ipx/ In 2000 one of my housemates found a few of these "lunchbox" systems, bought a big piece of glass, and made the IPXes the 'legs' of our coffee table 'cluster'. Trying to track down a picture now... It was extremely cool, but we couldn't really come up with a good use for it outside of running John the Ripper.
- dedward 15y agoFirst sun workstation I ever physically used (I'd used remote servers over terminal sessions for years). Got a new job, and they plunked an IPX down in front of me with a 20" sun monitor. "will that do?" (I knew nothing about the IPX - I did know sunos/solaris rather well from a cli point of view). That thing was slow as heck, but damn if it wasn't fun fun fun to have my own SUN! (In 1995 that was cool)