First thing to check is to make sure you get a decent mobile signal at and inside your home. If the tower is too far away you'll get horrible throughput rates.
What will most likely go into that space are 802.22 WRAN devices, so look for manufacturers that are claiming to be working in this area. The problem is that the 802.22 isn't finalized, so as the previous poster states, its a little soon to know who the players are. However, a good guess would be the members of the white space coalition: Adaptrum, I2R, Microsoft, Motorola, and Phillips.
TV Band/whitespace Devices are not in-between. They are "on top of" existing TV channels: 2 to 51.
White space devices work in the "white space", in the same bands as TV channels 2 to 51. FCC will not certify a device if it has any chance of causing co-channel interference.
We've done multiple studies at the University of Kansas and in order for a 802.11 basestation operating at the standard 15 dBm power to cause interference to a DTV receiver it would have to be within a couple meters if operating on adjacent channels. 802.22 (similiar signal) is the most likely candidate for using this spectrum.
Check out the IEEE Dynamic Spectrum Access (DySPAN) conference proceedings on many hardcore studies on the effects of these devices.
Phil DT-6 is in the low-VHF band (2-6) which is more susceptable to various noise. This is why the FCC recommends not putting digital tv signals there. They have lower max transmission power constraints also.
Um, no.
You know the "F" is for Foreign? It has never had jurisdiction over domestic communication.
Yes, I understand the "F" is for Foreign. Did you know that two "Foreign" persons can actually communicate within the US? This is considered a domestic communication because it is within the US, yet is still covered under FISA because the end users are "Foreign". So yes it has jurisdiction over domestic communication.
This is just for international communications coming in and out of the US. FISA is still valid for domestic communication.
Also, correct me if I'm wrong, but this really only means they don't need a warrant immediately, they will still have to go through FISA to get a longer term warrant. This "warrantless" program just gives them a few extra days of immediate listening instead of having to wait the few days it takes to get a warrant and miss some valid data.
Digital communication DOES take up less room than an analog signal. You can pack much more capacity in a digital signal then an analog signal. That 6 MHz analog signal can be sent using a 2 MHz digital signal.
This is a bit more than catching up. The officers don't have to go to 6 different sites to get this information. It seems like its all presented to them in one application. This ease of access information is probably the most useful part of this program.
Previous posters were right when saying this has been done before. In fact, I've purchased the Cyranose 320 made by Smiths Detection for a project at the University of Kansas I was working on. We were actually going to use it for authentication. Instead the project ended and we configured it to distinguish between different beers. It worked great!
Slashdot Mirror
This was posted back in 2008. http://hardware.slashdot.org/article.pl?sid=08/06/27/1551232
"I don't have time to track down every possible lib/etc/opt/local/share path that different packages try to use by default."
Sorry to sound like a jerk, but isn't this what you're paid to do?
First thing to check is to make sure you get a decent mobile signal at and inside your home. If the tower is too far away you'll get horrible throughput rates.
What will most likely go into that space are 802.22 WRAN devices, so look for manufacturers that are claiming to be working in this area. The problem is that the 802.22 isn't finalized, so as the previous poster states, its a little soon to know who the players are. However, a good guess would be the members of the white space coalition: Adaptrum, I2R, Microsoft, Motorola, and Phillips.
TV Band/whitespace Devices are not in-between. They are "on top of" existing TV channels: 2 to 51.
White space devices work in the "white space", in the same bands as TV channels 2 to 51. FCC will not certify a device if it has any chance of causing co-channel interference.
We've done multiple studies at the University of Kansas and in order for a 802.11 basestation operating at the standard 15 dBm power to cause interference to a DTV receiver it would have to be within a couple meters if operating on adjacent channels. 802.22 (similiar signal) is the most likely candidate for using this spectrum.
Check out the IEEE Dynamic Spectrum Access (DySPAN) conference proceedings on many hardcore studies on the effects of these devices. Phil DT-6 is in the low-VHF band (2-6) which is more susceptable to various noise. This is why the FCC recommends not putting digital tv signals there. They have lower max transmission power constraints also.
Um, no. You know the "F" is for Foreign? It has never had jurisdiction over domestic communication.
Yes, I understand the "F" is for Foreign. Did you know that two "Foreign" persons can actually communicate within the US? This is considered a domestic communication because it is within the US, yet is still covered under FISA because the end users are "Foreign". So yes it has jurisdiction over domestic communication.
This is just for international communications coming in and out of the US. FISA is still valid for domestic communication. Also, correct me if I'm wrong, but this really only means they don't need a warrant immediately, they will still have to go through FISA to get a longer term warrant. This "warrantless" program just gives them a few extra days of immediate listening instead of having to wait the few days it takes to get a warrant and miss some valid data.
Digital communication DOES take up less room than an analog signal. You can pack much more capacity in a digital signal then an analog signal. That 6 MHz analog signal can be sent using a 2 MHz digital signal.
This is a bit more than catching up. The officers don't have to go to 6 different sites to get this information. It seems like its all presented to them in one application. This ease of access information is probably the most useful part of this program.
Is it just me or does the IdeaPad remind you of the Jump To Conclusions Mat?
Previous posters were right when saying this has been done before. In fact, I've purchased the Cyranose 320 made by Smiths Detection for a project at the University of Kansas I was working on. We were actually going to use it for authentication. Instead the project ended and we configured it to distinguish between different beers. It worked great!