Things forbidden over ham radio in the US: 1) Encryption (Spread spectrum is a bit of a grey area here, some consider it "encryption", also some radio systems use scrambling codes for "whitening" data patterns. In general, "whitening" scramblers were OK as long as they were fully documented, spread spectrum is a pain in the !*@#)!*$#@! regulation-wise) 2) Broadcast is forbidden with a few exceptions. (Repeater IDs, for example. APRS is also kosher. Broadcasting anything like a "radio show" is not. In the digital age it's a bit grey, but in general sustained transmissions are not kosher, but brief bursts (IDing, position reports) are OK. 3) Commercial usage is forbidden. It used to be that if there was ANYTHING commercial about a transmission it was illegal, however a decade or two ago the US changed rules so that it was OK as long as none of the radio operators involved were benefiting financially. The main effect of this difference is that it used to be illegal to order pizza through an autopatcher (Allows a ham to make phone calls from their radio via a gateway, usually located at a repeater site), now it is legal. I think it was primarily done so that hams supporting emergency/even communications could order food for emergency/volunteer event workers. In France they may still use the old-style rules.
Hulu hasn't supported PS3 in a long time. They explicitly blocked it, and you could work around that with some user-agent-mangling-proxy tricks, but then Hulu required Flash 10 which the PS3 doesn't have.
(The original explicit blocks are still in place.)
Netflix gives more (other than "current season shows") at the same price.
"All WiFi must comply with 47CFR15.5(b) [gpo.gov]."
No it doesn't. It's perfectly legal to reclassify it under Part 97 rules if you have the appropriate license. (However, most owners of such licenses will try to take corrective action if they discover they are causing interference, which is why hams tend to stay out of the 2.4 GHz band in the first place.)
Same for military users (primary user in the band, but they usually stay away for the same reason as the hams).
I would reccommend the $60 EXT version and a cantenna (fab-corp.com sells Cantenna kits that include an N female chassis connector and a whateveryouneed-to-N-male pigtail) - You'll need some directionality to nail down the source.
May also need some attenuators for sniffing "close in"
Unless the interference cause isn't subject to Part 15. The general pecking order in most of the ISM bands is:
Primary user: Military - They can run whatever power levels they want, and the secondary/tertiary users are screwed. However, the military typically stays out of the ISM bands because they're an interference cesspool unless they run crazy power levels. Secondary user: Amateur (ham) radio operators - Legal limit 1500W, can't interfere with the military but can interfere with the tertiary user (but usually try to avoid doing so), and tend to stay away from the ISM bands for the same reason as the military. Occasionally hams will reclassify Part 15 devices under Part 97 (pretty much need to disable encryption and adhere to IDing rules), but it's very rare these days - just not worth the trouble. Tertiary user: Unlicensed users.
The FCC is unlikely to investigate unless you have some evidence. Get a card supported by NetStumbler or Kismet (this won't help you much if your interference source is not 802.11), or get a 2.4 GHz spectrum analyzer such as the Ubiqiti AirView2-EXT ($60) or WiSpy 2.4x ($200).
I'm surprised that an Intel card isn't supported by any of the Wi-Fi monitoring tools. Intel cards usually are. (Maybe Kismet supports it but NS doesn't?)
I just had a comment from a coworker that I always seemed to be online. I replied that I used Facebook's XMPP support and was logged in to it from an IM client, even when I wasn't actually at the computer. (My home computer has Pidgin running almost constantly.)
In addition to that, my home machine usually has Facebook open in a tab in Firefox. Facebook and GMail are pretty much my "always open even when out of the house" tabs.
I haven't had an opportunity to read the MIT report, but the article summary indicates that it is describing a solution to lower carbon emissions.
We need to see the forest through the trees - who cares if it reduces carbon emissions if it poisons our water? There are numerous cases of groundwater aquifers becoming undrinkable shortly after gas drilling (specifically modern hydraulic fracturing drilling) began. The gas industry continues to defend themselves by saying there is "no conclusive evidence" - But how is it that multiple towns have perfectly drinkable water for decades and then the water becomes undrinkable (saturated with pollutants including methane itself - some people near drilling sites can light their tapwater on fire.) within a year or two of drilling operations commencing?
I'm fairly certain Verizon picked up a lot of student customers when they added a cell site to one of the Barton Hall towers at Cornell University.
VZW, ATT, and T-Mo all worked to some degree, but coverage was spotty until VZW put that tower down a few years ago. (However, since then, AT&T has increased coverage a lot too, and the only place I've seen a coverage delta is in Lynah Rink - metal-roof-and-brick-wall building, but effectively adjacent to Verizon's site.)
I have an apartment, so for me it's "floorstand by the wall".:)
I'm surprised you haven't heard of Ubiqiti before, they're pretty well known. Their AP units are Atheros chipsets and they run a Linux-based OS. They've made some tweaks for improved performance when using Ubiqiti clients with their APs, but the AirMax stuff also can operate in standard 802.11n mode.
The Rocket M5 is 5 GHz-only. The M2 is the 2.4 GHz version.
Actually, Hahn didn't do this - He created a fission reactor. (Which, IMO, makes him deserve far more credit because fission is dangerous and far harder to get the materials for.)
Basic fusion is easy with the Farnsworth Fusor design. The problem is that it's not a useful design for anything but low-yield neutron generation for experiments - it can't generate power due to operating nowhere close to breakeven and, if I recall correctly, with quite a bit of physics saying that such a design will never be able to achieve breakeven at any scale.
Guess what I'll be using indoors once I get around to buying an antenna, and what a good friend of mine has been using to cover his house?
The only real "deficiency" for house use would be the fact that it is JUST an AP, not a router/AP combo with a built-in switch.
However, if you're rackmounting most of your gear, independent router and APs (esp. if you decide to use multiple APs to cover a large area) aren't a bad thing.
Another small disadvantage is that the mounting mechanism is outdoor-oriented. I'm probably going to make a floorstand out of PVC pipe to mount the unit on. Not sure how my friend has his mounted.
"Hmmm... at that point might as well use POE and those thin wireless APs. But that's a commercial solution and a LOT more expensive than a consumer integrated unit."
For the performance they provide, Ubiqiti's Rocket and Bullet series are pretty reasonably priced. A complete high power 5 GHz N setup (with PoE injector, AP, and antennas) will run you around $150-170. A Rocket M5 is $90, and a matched 16 dBi 120 degree sector antenna is $80, total $170.
Low power (Likely 100 mW or less as opposed to 1000 mW) 5 GHz N routers with integrated (crappy, not anywhere close to 16 dBi) antennas are in the $100+ range. PoE with a Ubiqiti solution is just icing on the cake at that point.
My experience is that since 802.11n degrades severely when legacy devices are nearby and takes pretty much the entire 2.4 GHz band, properly designed G devices are superior. (Esp. since it's VERY difficult to find N routers that support external antennas.) At ranges greater than 10-20 feet, my old workhorse (Buffalo WHR-G54S with a 500 mW amp and sector antenna attached) kills N solutions that cost more than the Buffalo + antenna + amp combo.
A dual-band router for $300 just plain isn't going to sell, channel bonding between bands isn't worth the $100-150 premium over two separate devices.
A Ubiqiti Rocket M in either band is $100 and has higher transmit power than anything I know of from D-Link or Linksys, plus supports external antennas (unlike all recent Linksys gear and most D-Link units.)
Yes, you need to purchase antennas for the Rocket, but you can get a 5 GHz Rocket M with a high gain sector antenna for less than $150 total - so what is the justification for a shitty dual-band consumer grade unit with internal antennas at a $300 price point?
If Ubiqiti can hit their price points without large-scale ISP subsidies and a pretty low volume specialty market, why can't D-Link?
I don't believe NaCl is nearly as effective as a desiccant as CaCl or LiCl is, especially once in an aqueous liquid solution. (NaCl still has some desiccant properties but not much at this point, while I believe CaCl is still a strong desiccant at this point.)
I think that the desiccants can reduce the wet-bulb temperature of incoming air in an (at least mostly) closed loop for the desiccants. (The desiccant salts would stay in the system but the water wouldn't.)
It's much harder to do it for the evaporative water feed, and in fact I'm not sure if it can be done with a continuous system without effectively making it another phase change refrigeration system.
However, it is possible to do closed-loop desiccant based systems if they are "intermittent" - I've seen one that used two chambers of silica gel. Don't have a link to it right now.
Also there have been other absorption/adsorption based refrigeration technologies for a while. In some cases they are highly inefficient, but have the advantage of using cheap/readily available low temperature heat sources like generator exhaust, solar hot water (a LOT cheaper than concentrated solar or PV), or hot springs. (Who cares if your AC is inefficient if the energy comes from cheap thermal solar collectors on the roof, esp. since they are now contributing to cooling your house and not heating it.)
The good thing about this is that it's less likely BP will be able to shirk their compensation committments or drag out the legal proceedings for eternity without massive public outrage like Exxon did.
Prince William Sound is apparently a beautiful, natural pristine area, but Exxon was lucky - it was not highly populated and not many people visited there so they could get away with dragging out the compensation lawsuits for decades.
Shut up until you can show me a link to a full Adobe Flash specification which includes RTMPE protocol documentation.
Shut up until you can show me ONE Flash implementation containing RTMPE support that has been written or distributed within the United States that hasn't resulted in a DMCA takedown notice from Adobe. (Gnash has never at any point been Hulu compatible.)
Flowplayer is light on the details of exactly how it is implemented, but it does not appear to be an alternative Flash client implementation. In fact it appears to depend on a Flash implementation being present on the client side.
Nearly all of the tools linked in that swftools link require Adobe's flash implementation to also be present on the client side, they are add-ons for it, NOT replacements. For example, the Eltima Flash'In'App is NOT a Flash reimplementation, but just a method for embedding Flash 8 or above into standalone apps. Flash 8 or above must still be present on the user's machine. From the site: "Your users will need at least Mac OS X 10.4 or later and Flash Player 8 or newer to run applications that you develop with Flash'In'App. Note: transparency will only work correctly on Intel-based Macs (sorry, it's not our limitation, but Adobe's one)."
It appears, to me, that you are the one drinking Adobe's "we have documented Flash sufficiently for alternative implementations" Kool-Aid.
While Hulu may require 10.0.22 for the newest features, it requires 10.x just to work at all.
Critical components of Adobe's Flash implementation formerly used by Hulu (RTMPE) were never documented by Adobe, only a reverse engineered specification for RTMPE exists and anyone implementing that specification within the United States will get a DMCA takedown issued by Adobe.
Hulu has since moved to an even more "super-secret" undocumented protocol, most likely with Adobe's cooperation.
So no, Flash is not by any means open, when any attempt to create or distribute a fully compatible alternative within the United States will result in a DMCA takedown notice issued by Adobe.
There's the issue of getting that hose downhole. The BOP is partially closed - not enough to stop the flow of oil, but not open enough to allow anything to be easily shoved down the tube.
Otherwise they'd just run a drill tube down the hole and start pumping kill mud.
And so far, in my experience (I live right on the border of a very rural area in the Southern Tier of New York), I have seen little to no deltas between Verizon service and AT&T lately. There used to be huge deltas (thanks to Verizon inheriting Frontier Cellular's network, which specialized in rural coverage in NYS), but not these days.
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I've always wondered about W1AW, and figured it was an approved "special exemption" of some sort.
Things forbidden over ham radio in the US:
1) Encryption (Spread spectrum is a bit of a grey area here, some consider it "encryption", also some radio systems use scrambling codes for "whitening" data patterns. In general, "whitening" scramblers were OK as long as they were fully documented, spread spectrum is a pain in the !*@#)!*$#@! regulation-wise)
2) Broadcast is forbidden with a few exceptions. (Repeater IDs, for example. APRS is also kosher. Broadcasting anything like a "radio show" is not. In the digital age it's a bit grey, but in general sustained transmissions are not kosher, but brief bursts (IDing, position reports) are OK.
3) Commercial usage is forbidden. It used to be that if there was ANYTHING commercial about a transmission it was illegal, however a decade or two ago the US changed rules so that it was OK as long as none of the radio operators involved were benefiting financially. The main effect of this difference is that it used to be illegal to order pizza through an autopatcher (Allows a ham to make phone calls from their radio via a gateway, usually located at a repeater site), now it is legal. I think it was primarily done so that hams supporting emergency/even communications could order food for emergency/volunteer event workers. In France they may still use the old-style rules.
pulled the trigger now he's dead
easy come, easy go
Hulu hasn't supported PS3 in a long time. They explicitly blocked it, and you could work around that with some user-agent-mangling-proxy tricks, but then Hulu required Flash 10 which the PS3 doesn't have.
(The original explicit blocks are still in place.)
Netflix gives more (other than "current season shows") at the same price.
Odd, there are actually two subbands within the 5 GHz band, and phones are in a different one than wifi.
Phones are usually around 5.8 GHz, wifi is usually a bit lower IIRC.
Yeah, the 6.0 is misleading, it was called DECT 6.0 in the US for marketing reasons. The 6.0 means nothing other than being a higher number than 5.8.
Even though 1.9 is far better than 2.4 and 5.8 (2.4 is a noisy band, higher frequencies don't penetrate obstacles as well.)
"All WiFi must comply with 47CFR15.5(b) [gpo.gov]."
No it doesn't. It's perfectly legal to reclassify it under Part 97 rules if you have the appropriate license. (However, most owners of such licenses will try to take corrective action if they discover they are causing interference, which is why hams tend to stay out of the 2.4 GHz band in the first place.)
Same for military users (primary user in the band, but they usually stay away for the same reason as the hams).
I would reccommend the $60 EXT version and a cantenna (fab-corp.com sells Cantenna kits that include an N female chassis connector and a whateveryouneed-to-N-male pigtail) - You'll need some directionality to nail down the source.
May also need some attenuators for sniffing "close in"
Unless the interference cause isn't subject to Part 15. The general pecking order in most of the ISM bands is:
Primary user: Military - They can run whatever power levels they want, and the secondary/tertiary users are screwed. However, the military typically stays out of the ISM bands because they're an interference cesspool unless they run crazy power levels.
Secondary user: Amateur (ham) radio operators - Legal limit 1500W, can't interfere with the military but can interfere with the tertiary user (but usually try to avoid doing so), and tend to stay away from the ISM bands for the same reason as the military. Occasionally hams will reclassify Part 15 devices under Part 97 (pretty much need to disable encryption and adhere to IDing rules), but it's very rare these days - just not worth the trouble.
Tertiary user: Unlicensed users.
The FCC is unlikely to investigate unless you have some evidence. Get a card supported by NetStumbler or Kismet (this won't help you much if your interference source is not 802.11), or get a 2.4 GHz spectrum analyzer such as the Ubiqiti AirView2-EXT ($60) or WiSpy 2.4x ($200).
I'm surprised that an Intel card isn't supported by any of the Wi-Fi monitoring tools. Intel cards usually are. (Maybe Kismet supports it but NS doesn't?)
I just had a comment from a coworker that I always seemed to be online. I replied that I used Facebook's XMPP support and was logged in to it from an IM client, even when I wasn't actually at the computer. (My home computer has Pidgin running almost constantly.)
In addition to that, my home machine usually has Facebook open in a tab in Firefox. Facebook and GMail are pretty much my "always open even when out of the house" tabs.
Mod parent up.
Although to add more detail than the AC had:
I haven't had an opportunity to read the MIT report, but the article summary indicates that it is describing a solution to lower carbon emissions.
We need to see the forest through the trees - who cares if it reduces carbon emissions if it poisons our water? There are numerous cases of groundwater aquifers becoming undrinkable shortly after gas drilling (specifically modern hydraulic fracturing drilling) began. The gas industry continues to defend themselves by saying there is "no conclusive evidence" - But how is it that multiple towns have perfectly drinkable water for decades and then the water becomes undrinkable (saturated with pollutants including methane itself - some people near drilling sites can light their tapwater on fire.) within a year or two of drilling operations commencing?
I'm fairly certain Verizon picked up a lot of student customers when they added a cell site to one of the Barton Hall towers at Cornell University.
VZW, ATT, and T-Mo all worked to some degree, but coverage was spotty until VZW put that tower down a few years ago. (However, since then, AT&T has increased coverage a lot too, and the only place I've seen a coverage delta is in Lynah Rink - metal-roof-and-brick-wall building, but effectively adjacent to Verizon's site.)
I have an apartment, so for me it's "floorstand by the wall". :)
I'm surprised you haven't heard of Ubiqiti before, they're pretty well known. Their AP units are Atheros chipsets and they run a Linux-based OS. They've made some tweaks for improved performance when using Ubiqiti clients with their APs, but the AirMax stuff also can operate in standard 802.11n mode.
The Rocket M5 is 5 GHz-only. The M2 is the 2.4 GHz version.
Actually, Hahn didn't do this - He created a fission reactor. (Which, IMO, makes him deserve far more credit because fission is dangerous and far harder to get the materials for.)
Basic fusion is easy with the Farnsworth Fusor design. The problem is that it's not a useful design for anything but low-yield neutron generation for experiments - it can't generate power due to operating nowhere close to breakeven and, if I recall correctly, with quite a bit of physics saying that such a design will never be able to achieve breakeven at any scale.
Guess what I'll be using indoors once I get around to buying an antenna, and what a good friend of mine has been using to cover his house?
The only real "deficiency" for house use would be the fact that it is JUST an AP, not a router/AP combo with a built-in switch.
However, if you're rackmounting most of your gear, independent router and APs (esp. if you decide to use multiple APs to cover a large area) aren't a bad thing.
Another small disadvantage is that the mounting mechanism is outdoor-oriented. I'm probably going to make a floorstand out of PVC pipe to mount the unit on. Not sure how my friend has his mounted.
"Hmmm... at that point might as well use POE and those thin wireless APs. But that's a commercial solution and a LOT more expensive than a consumer integrated unit."
For the performance they provide, Ubiqiti's Rocket and Bullet series are pretty reasonably priced. A complete high power 5 GHz N setup (with PoE injector, AP, and antennas) will run you around $150-170. A Rocket M5 is $90, and a matched 16 dBi 120 degree sector antenna is $80, total $170.
Low power (Likely 100 mW or less as opposed to 1000 mW) 5 GHz N routers with integrated (crappy, not anywhere close to 16 dBi) antennas are in the $100+ range. PoE with a Ubiqiti solution is just icing on the cake at that point.
My experience is that since 802.11n degrades severely when legacy devices are nearby and takes pretty much the entire 2.4 GHz band, properly designed G devices are superior. (Esp. since it's VERY difficult to find N routers that support external antennas.) At ranges greater than 10-20 feet, my old workhorse (Buffalo WHR-G54S with a 500 mW amp and sector antenna attached) kills N solutions that cost more than the Buffalo + antenna + amp combo.
A dual-band router for $300 just plain isn't going to sell, channel bonding between bands isn't worth the $100-150 premium over two separate devices.
A Ubiqiti Rocket M in either band is $100 and has higher transmit power than anything I know of from D-Link or Linksys, plus supports external antennas (unlike all recent Linksys gear and most D-Link units.)
Yes, you need to purchase antennas for the Rocket, but you can get a 5 GHz Rocket M with a high gain sector antenna for less than $150 total - so what is the justification for a shitty dual-band consumer grade unit with internal antennas at a $300 price point?
If Ubiqiti can hit their price points without large-scale ISP subsidies and a pretty low volume specialty market, why can't D-Link?
I don't believe NaCl is nearly as effective as a desiccant as CaCl or LiCl is, especially once in an aqueous liquid solution. (NaCl still has some desiccant properties but not much at this point, while I believe CaCl is still a strong desiccant at this point.)
I think that the desiccants can reduce the wet-bulb temperature of incoming air in an (at least mostly) closed loop for the desiccants. (The desiccant salts would stay in the system but the water wouldn't.)
It's much harder to do it for the evaporative water feed, and in fact I'm not sure if it can be done with a continuous system without effectively making it another phase change refrigeration system.
However, it is possible to do closed-loop desiccant based systems if they are "intermittent" - I've seen one that used two chambers of silica gel. Don't have a link to it right now.
Also there have been other absorption/adsorption based refrigeration technologies for a while. In some cases they are highly inefficient, but have the advantage of using cheap/readily available low temperature heat sources like generator exhaust, solar hot water (a LOT cheaper than concentrated solar or PV), or hot springs. (Who cares if your AC is inefficient if the energy comes from cheap thermal solar collectors on the roof, esp. since they are now contributing to cooling your house and not heating it.)
The good thing about this is that it's less likely BP will be able to shirk their compensation committments or drag out the legal proceedings for eternity without massive public outrage like Exxon did.
Prince William Sound is apparently a beautiful, natural pristine area, but Exxon was lucky - it was not highly populated and not many people visited there so they could get away with dragging out the compensation lawsuits for decades.
The GOM is a whole different story.
Why don't you get an education?
Shut up until you can show me a link to a full Adobe Flash specification which includes RTMPE protocol documentation.
Shut up until you can show me ONE Flash implementation containing RTMPE support that has been written or distributed within the United States that hasn't resulted in a DMCA takedown notice from Adobe. (Gnash has never at any point been Hulu compatible.)
Flowplayer is light on the details of exactly how it is implemented, but it does not appear to be an alternative Flash client implementation. In fact it appears to depend on a Flash implementation being present on the client side.
Nearly all of the tools linked in that swftools link require Adobe's flash implementation to also be present on the client side, they are add-ons for it, NOT replacements. For example, the Eltima Flash'In'App is NOT a Flash reimplementation, but just a method for embedding Flash 8 or above into standalone apps. Flash 8 or above must still be present on the user's machine. From the site: "Your users will need at least Mac OS X 10.4 or later and Flash Player 8 or newer to run applications that you develop with Flash'In'App. Note: transparency will only work correctly on Intel-based Macs (sorry, it's not our limitation, but Adobe's one)."
It appears, to me, that you are the one drinking Adobe's "we have documented Flash sufficiently for alternative implementations" Kool-Aid.
While Hulu may require 10.0.22 for the newest features, it requires 10.x just to work at all.
Critical components of Adobe's Flash implementation formerly used by Hulu (RTMPE) were never documented by Adobe, only a reverse engineered specification for RTMPE exists and anyone implementing that specification within the United States will get a DMCA takedown issued by Adobe.
Hulu has since moved to an even more "super-secret" undocumented protocol, most likely with Adobe's cooperation.
So no, Flash is not by any means open, when any attempt to create or distribute a fully compatible alternative within the United States will result in a DMCA takedown notice issued by Adobe.
There's the issue of getting that hose downhole. The BOP is partially closed - not enough to stop the flow of oil, but not open enough to allow anything to be easily shoved down the tube.
Otherwise they'd just run a drill tube down the hole and start pumping kill mud.
iPhone doesn't support CDMA at all.
And so far, in my experience (I live right on the border of a very rural area in the Southern Tier of New York), I have seen little to no deltas between Verizon service and AT&T lately. There used to be huge deltas (thanks to Verizon inheriting Frontier Cellular's network, which specialized in rural coverage in NYS), but not these days.