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Comment Re:RIPTerm (Score 1) 181

There are many serial port redirectors out there, typically used with telnet server (ethernet to serial) boxes like the SitePlayer Telnet, some of the Lantronix stuff, and stuff from Equinox and Digi. These are very common for remote out-of-band console port admin of switches and routers.

I never used RIPTerm; on the PC I later used Telix, but I used ANSITerm on my TRS-80 Model 4D with hi-res card. I still occasionally fire up the old Tandy 1400LT 8088 DOS laptop and use Telix for console work, and I still have a TRS-80 Model 4P (with an HxC floppy emulator) and use Mel Patrick's FASTTERM as well as my own ANSITerm (hi-res board required.....). Makes some interesting conversation in a datcenter to roll in with a TRS-80 4P in tow...... But it makes a reasonable terminal for many uses.

I ran my part-time BBS in Atlanta on that Model 4, too, incidentally.

Comment The Greene Machine, 8/N/1, Eskimo North, RIME,.... (Score 2) 181

Lots of good memories meeting lots of interesting people. More interesting than Facebook; typically more civilized than Reddit, Slashdot, 4Chan, or pretty much anything else of today.

I ran a BBS in Atlanta in the mid-80's. Was very fun. Until joining Eskimo North (still online!) had not used a multi-user BBS. That was one of the draws of the BBS scene; single-user by nature, most of the time, and replies were far slower in coming..... 8/N1, The Greene Machine, Tandy Trader, Cornucopia, among many others. I still have a print of a 1987 dial-in list from Atlanta, and I was involved in many of them.

BBSing got me into uucp and running my own C-News leaf node attached to Eskimo North. Fun days. Usenet was the next step, really, beyond the dial-up BBS. Especially in terms of loss of civility; alt.flame, alt.barney.must.die.die.die, etc. Discussion of new group creation, some of the interesting things in alt.folklore.computers, and good times in comp.sys.tandy.

Comment Re:Secret Software? (Score 2) 227

I have read it, back in 2009, around Christmastime. While Wheeler's dissertation is impressive, his own list of challenges (Section 8, page 118) is fairly extensive, and many of those challenges apply to the embedded development reality (most notably, the alternative compiler necessary to create the diversity). As an ECU is an embedded, and likely a rather proprietary, platform, it is likely that an alternative compiler would not be available.

Try again.

Comment The Twilight Zone -- a Matter of Minutes (Score 1) 830

Sounds like segment three of the 15th episode of the mid-80's revival of The Twilight Zone to me. See:

The comments about religion are petty spot-on, too; in essence, this makes the universe merely a figment of God's imagination..... our the figment of a computer simulation.....

Comment Re:Tempest protocol (Score 4, Informative) 58

One of the key concepts to realize with 'van Eck phreaking' is that no shielding provides infinite attenuation at all frequencies. Even solid copper shielding has a finite, if very large, attenuation. With a cryogenic-cooled HEMT or similar front-end and a high gain antenna, the requirements for shielding could be as high as an attenuation of 100dB or more (copper screen is good for 30dB or so typically).

A cryo HEMT front-end isn't that far out of reach, even on pennies, as dry ice can get the temps low enough to foil thin shielding, and thicker shielding can be defeated with liquid nitrogen temps. Specialized near-field antennas that work on magnetic induction principles foil even the thickest pure copper, tin, or aluminum shielding; you need a ferromagnetic shield (mu metal is good) in addition to the copper to shield then.

Vent holes are the hardest, as you then want copper honeycomb material to act as 'waveguide beyond cutoff' attenuators. Slots and gaps of any kind can act as antennas; the Parkes radio telescope, for instance, has a webcam that required a very special enclosure where even the screw spacing had to be controlled. (see for details).

Comment Re:False positives (Score 1) 81

While I do have mod points, I need to post this. I regularly see 1,000ms ping RTT on my otherwise reasonably fast (7/.5) DSL service when I have a lot of upstream traffic, and that ping RTT is to the router's gateway, a single hop away. My boss, who is on a 50/5 cable service, has consistent 1,000ms ping RTT to his next-hop. RTT for other packets varies according to protocol and IP target, showing some QoS queueing going on.

My DSL RTT to the next hop varies between a couple of ms to 1,000 ms depending on upstream traffic amount; determining my location based on that would be foolish.

Comment Re:Amazing! (Score 1) 173

They already have control; 47 CFR Part 15 covers this completely.

While you can write whatever code you would like, and you can compile it with no worries, if that code causes interference above and beyond Part 15 rules it is a violation of the regulations for that code to be run if the device running that code is within the jurisdiction of the FCC (USA and its possessions). If you have a license, you are covered by the particular section of 47 CFR that covers your particular license, and you must abide by that license and its covering regulations (code for a TV broadcast transmitter, for instance, has a whole separate set of restrictions).

If a device possesses an intentional radiator of RF it is covered by one or more FCC regulations (in the US; internationally it's covered by the ITU and its vast portfolio of regulations). Many of the provisions of various regulations in 47 CFR are there because of ITU regulations, incidentally, including many in Part 15.

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