Domain: techsplanet.com
Stories and comments across the archive that link to techsplanet.com.
Comments · 18
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Re:Two Towers & tube transitPlugging some numbers into a wireless link calculator, I find that two towers would have to be about 38 miles high to see each other above the radio horizon. (Don't forget you need to take into account the fresnel zone.) A more realistic height of 150' yields 38 towers at 54 km apart, 33 towers 62 km apart at 200', 26 towers 80 km apart at 100 meters high, or 8 towers 252 km apart at 1km high.
Overall, I'd say putting a satellite constellation (say, 4 satellites so one's always visible) in non-equatorial orbit would be one plan, and a wire to a spot where at least 2 geostationary satellites are visible would be the other. Wireless links won't cut it here. Even if you could put a couple of the towers on specially picked mountains, you'd still have too much possibility of failure.
On the other hand, and in an off the wall comment, if I were doing this, I'd include in the contract a requirement for an elliptical 1m wide, 1.25m high space running the length of the inside of the conduit. Its going to be a huge conduit already, might as well make it multi-purpose, right? Imagine being able to just hit the antarctic coast and taking a tube-shuttle from the coast to the station. Wheee!!!
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Great antennas
This is a great set of antenna kits for the WAP11
http://www.techsplanet.com/antenna_by_brand.htm#li nksys -
Re:Extending a wireless network?
techsplanet has some antenna specials they claim hoook right up to ths linksys's. Any one had any luck with these?
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wISP Tower feeds?
I we could get this to work for around 15 miles LOS, then it would make the ideal tower feed system. Our current tower feet systems max out about 50mbps, with the exploding growth in wireless broadband, we could use 100mbps. What we could REALLY use is 1gbps data feeds....
Donald Beckman
Wireless internet Broadband Products:
www.techsplanet.com/wlan -
They finally did it....
This is the tech that gave the NSA cold sweats. AT&T was going to make a cheep encrypted phone like this, it freaked out the general intelligence groups. They tried to make encryption unlawful, but it didn't work (as we all know). I would mind getting one of these just to spark hits on the computer they must have setup to find these types of calls when they are placed....
Shameless Plug for my website:
Wireless Lan Systems!
Network over a 25 mile radius!
MicroCellular Systems!
www.techsplanet.com/wlan
Hey, at least I didn't use the BLINK tag!
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Jsut how smart is "smart'?
We could really use these, we use complex access filters as it is to deliver QOS for the different protocols, but we still see problems on our network. Many of a time have I had to govern a user who was abusing a cheep residential account, trying to exceed the contractual bandwidth caps, trying to run a high load game server, ect. We try to be as flexible with the users as possible, we even host most light load and game servers on our server pod for free or nearly free for our customers. A smarter router that would allow us to be more flexible and cut our bandwidth up between our users would be great. I am wondering HOW much smarter, because QOS and ACLs tend to provide a high degree of control all ready.
Shameless Plug for my website:
Wireless Lan Systems!
Network over a 25 mile radius!
MicroCellular Systems!
www.techsplanet.com/wlan
Hey, at least I didn't use the BLINK tag!
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Re:Oh, cool!
do you really know how many tons of CO2 you would need? also, the 2 O atoms would be split off. Their isn't enough C in the air to do that. Their is enough captured in the ground to do it, however. We may need to mine the moon to do it, if we don't want to do mass conversion of Coal to Carbon.
Shameless Plug for my Web Site:
Wireless LAN Hardware and Systems
Network with a 15 mile radius!
Provide high speed connections to your ISP with out the expensive infrastructure!
Network your campus!
www.techsplanet.com/wlan/
Hey, at least I didn't use the BLINK tag! :) -
We do this already...
We do this already...
It isn't hard to get a 20 mile point to point link. You can use an off the shelf Cisco BR342 or 352 AP and a 19 DBI antenna. The main problem is radio horizon, you will need to get both antennas off the ground about 50-75'
The systems we build do this sort of thing all the time. We are very careful to not violate the FCC radiated wattage limits, which is why it is important to use pre made plug and play if you are not a network professional with wLAN experience.
We get new toys in all the time. For example, we just got in a micro cellular system that has an effective range of 5 miles. It only cost $1499, and you can link multiple units together without wires to create a micro cellular network. The signal will get relayed till it gets to your servers.
Shameless Plug for my Web Site:
Wireless LAN Hardware and Systems
Network with a 15 mile radius!
Provide high speed connections to your ISP with out the expensive infrastructure!
Network your campus!
www.techsplanet.com/wlan/
Hey, at least I didn't use the BLINK tag! :) -
Re:Shouldn't be too hard... THANKS FOR THE LINK!!!
Thanks for the link to my web site, I was wondering why i got a surge in hits. It did take it and want more BTW!
And yes, it runs on Linux....
Shameless Plug for my Web Site:
Wireless LAN Hardware and Systems
Network with a 15 mile radius!
Provide high speed connections to your ISP with out the expensive infrastructure!
Network your campus!
www.techsplanet.com/wlan/
Hey, at least I didn't use the BLINK tag! :) -
Shouldn't be too hard......but what's the point? There's already some pretty inexpensive equipment that'll do long range point-to-point connections
Also, with the questionable security of 802.11, even with WEP enabled, would it really be that good of an idea to have that large of a coverage radius? With technology like this, people wouldn't even have to drive up to the parking lot to gain access to the network, they could do it from their home or someplace far away from their actual target.
It's a security breach waiting to happen.
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Stupid managers.....
Simple, make the manager feel stupid without them realizing it was you who did it. Managers NEVER want to admit their wrong, so the will go along with what you said, and play like they never said what they did. At least that has always been my experience in corp. America....
They are much more worried about looking stupid in front of their upper managers, so you can normally correct them before things get out of hand.
The real danger is the managers who have no contact with the tech staff.
Shameless Plug for my Web Site:
Wireless LAN Hardware and Systems
Network with a 15 mile radius!
Provide high speed connections to your ISP with out the expensive infrastructure!
Network your campus!
www.techsplanet.com/wlan/
Hey, at least I didn't use the BLINK tag! :) -
I hope this happens...
Dam, as an ex-arch student, I know that is going to be the most complex building in the world. Several of you have mentioned the lift problem. Do you know how air powered bank tubes work? Several designers have made elevator designs on the same concept. They use controlled air channels to lift the car almost unlimited heights. The only problem is pumping air fast enough. This thing is gona take so much power, expect a small nuke plant in it to power the thing.
Why do the Chinese want to do this?
Simple, we don't respect them. We do not see them as a super power. Their nukes (bombs) are primitive, and their government cant see spending money on weapons that they will never get to use. So, they are busy on two fronts; a manned space flight mission, and creating this engineering masterpiece. Could we do this? Yes, it isn't really a technology problem as a money problem. Donald Trump was thinking of something like this to show the world how much money and power he had, till he lost a big chunk to the ex wife... ;) And that was nearly 8 years ago. The Cost/sq-ft ratio builds up too high for economic sense at 100 floors on a building. The Chinese can conscript all the labor they wish because they are communist ( the Chinese are really not socialist, in a socialist government, they would be responsible for the welfare of their citizens, and guarantee jobs, and provide housing & food, the Chinese govt. does not do any of this for all of its citizens.), so the labor factor is severely reduced. I do hope the competition from the Chinese creates another tech/space race here in the US. We need competition to fuel national projects of great magnitude.
Shameless Plug for my Web Site:
Wireless LAN Hardware and Systems
Network with a 15 mile radius!
Provide high speed connections to your ISP with out the expensive infrastructure!
Network your campus!
www.techsplanet.com/wlan/
Hey, at least I didn't use the BLINK tag! :) -
Free Game Market!
I wish them the best of luck.
An open source gaming console would make a system that independent developers can create games for without having to pay the high licensing fees that price them out of most other systems. It would also do the same for the accessory hardware and services market for the console. Basically, this would create a freer market for high powered game consoles.
Shameless Plug For my web site:
Wireless LAN hardware and systems
Network over 15 Miles radius!
www.techsplanet.com/wlan/ -
How about htis award...
The "You have Been Slash Doted and Survived Without A Crash" award? That would really mean something to a web admin...
Plug for my website:
Wireless Networking Systems
Network over a 15 mile radius!
Create your own Wireless ISP!
www.techsplanet.com/wlan/ -
Modern Data Medium is Dynamic, not Static
My family has a central data server in which all of our data and backups of our programs are stored. It uses a nice IDE RAID system to insure that our 40+GB of files are safe. (although this includes a library of 122 program install sets, such as office, windows, Photoshop, ect...) Our USER directory is over 21gb of hard data files, which includes financial records, Office App save files (word, excel, power point, access), image files (no porn you dirty minded geek!), and email. Also backed up is our web pages, and other important information.
I foresee a time when almost every home has its own central server, and the data on such a server is by design, self backing up. A family with such a server would never loose copies of their records, that is as long as a fire or something didn't kill the server.
Since the server in my house has so much important data , I also have a hard drive copy in my bank safe deposit box, wrapped in magnetic shielding (just in case). I update the back up once a year, which isn't very often, but better than nothing... This is something I doubt the average family will do in the future, but as online backup increases in durability, the backup will be held on internet servers instead.
And I use a different hard drive on each backup, BTW....
Basically, modern data media is dynamic, not static. The information has to be re-copied and compressed regularly or it is lost. I had a case of this before we went to the server, I lost all my AutoCAD file, which HURT!!! I had years of files just erase with out a way to recover. Can you say ouch?
Plug for my website:
Wireless LAN Hardware and Systems!
Network over an area of 15 or more miles!
www.techsplanet.com/wlan/ -
Well....
One point, what if I run from a proxy in another country? That would defeat this software.
Use the KISS method, it works!
Plug for my website:
www.techsplanet.com/wlan.htm
wLAN Products and more! -
A byte of reality?
Come on, we all know that we are going to have to see bigger impact advertising on the new. Some one has to pay for all of this. It is just like a magazine, you see lots of adds which pay for 97% of everything, and you pay the cover price to get it shipped to you (or less). The same with the internet, the 'shipping' is our ISP bills and the Advertising pays for the content. Anyways, The only adds I hate are the
.GIFs that someone set to animate as fast as it can, for some reason it slows my whole system down to a crawl, on every computer I have. Plug for my web site: www.techsplanet.com/pelicanbay -
This is why I am auth MAC addys with IP addys on m
This is why I am verifying MAC addresses along with IP address on my access lists. I take a little more effort, but this will keep peeps from stealing service at my wireless ISP . Seriously, you should be ashamed of yourself..... My ISP depends on each and every customer to stay in business, If a leech on the system starting knocking off IP addresses, I would start tracking down the signal, then use a 400w microwave source pointed at your NIC's antenna!