johnnymanson

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Everything posted by johnnymanson

  1. http://entertainment.slashdot.org/story/11/11/22/1523249/ham-radio-licenses-top-700000-an-all-time-high
  2. I lost interest in the hobby years ago. But a friend of mine just got back into it. Handhelds are really cheap now. You can get a dual band 2M 440 MHz for under $50 USD. Google Baofeng or check them out on eBay.
  3. I did an internal preamp for a friend more than 20 years ago. I got the schematic from Guitar Player magazine. It looks like you can get something similar today. Google Tonekicker and see if this might be something you are interested in.
  4. Thanks for pointing out the Wikipedia page. Pretty impressive Dawg!
  5. I have been getting text messages from different people on my contacts list that are not coming from their usual number. It has always been a different area code. These contacts have sent text messages to my Google Voice number which gets forwarded to my Verizon Android phone. I can understand Google forwarding a text from another number, but the strange thing is I can call that number and it always rings the contacts phone. Does Google assign everyone that sends me a text extra phone number? That seems like a huge waste of numbers. How could they do that? It seems to be somewhat persistent. I can reach my sister in South Carolina by calling a in the Sacramento California area code. It worked more than 24 hours later. Has anyone else seen anything like this? Can anyone duplicate this?
  6. Here is the cheat sheet I used a long time ago to remember the essential subnetting stuff. Subnetting Memory Stuff Position 8 7 6 5 4 3 2 1 Value 128 64 32 16 8 4 2 1 Number 256 128 64 32 16 8 4 2 Subnet 10000000 128 Class A MSB 0 0 to 127.255.255.255 Bits 11000000 192 Class B MSBs 10 128.0.0.0 to 191.255.255.255 11100000 224 Class C MSB 110 192.0.0.0 to 223.255.255.255 11110000 240 11111000 248 11111100 252 11111110 254 11111111 255
  7. each contact or person you called or received a call from with GV will have a unique telephone number from google assigned to it.. these numbers are shared amongst all of the GV subscribers.. so for example someone texts you google will forward the text from NPA-NXX-XXX1 calls to this number from ANY number that is associated as a forwarding number on your GV account will be sent to that person with your GV number as the caller ID.. sort of like a shortcut instead of having to call into your GV number and press 2 to place a call, or using click to call, or an app... if someone texted my GV number i could end up with the same NPA-NXX-XXX1 number, but when I called that number from one of the numbers associated with my GV number i would reach someone different than you would.. calling from a number that is not linked with a GV account would result in whatever error recording that GV chooses to put up on the line... but even the CBCAD calls would probably be supervised calls... Makes sense. Hope you are safe from the effects of Sandy.
  8. Another thing I don't understand is why I can call the number from my cell and it rings my friends phone. When I call it from a landline phone I get a "your call cannot be completed as dialed" message.
  9. I found a thread on this. http://productforums.google.com/forum/#!topic/voice/ae2ExaPUduc%5B1-25%5D
  10. Try 123.45 MHz for some interesting air to air traffic. This frequency is not really authorized for this but it has been in use for this purpose since the 1970's or before. Us pilots are a simple bunch, tuning 12345 is easy for us!
  11. both wired... one directly to the router.. one connected to the second router that has DHCP off and is only acting as a switch... you say that the router should have picked it up... but originally i thought it was the router, and i just replaced the router about 2 weeks ago it was actually a freak accident that i found the problem, because my wife had her PC connected directly to the modem while i was playing around with some settings on the router, and ended up being able to ping the IP address of "her computer" i know usually when there are multiple devices with the same IP address on a network that there will be an IP address conflict - but i guess because they both had the same MAC address, the router thought that it was the same device? EDIT - i just emailed customer service @ netgear and advised them of this problem with their firmware, hopefully it gets passed to the proper place for them to see if they can develop a solution to this problem - they have IP address conflicts... why not MAC address conflicts? Any chance the MAC address of one of the routers got cloned to match the MAC address of your wife's computer sometime? I know this is possible in many home routers. MAC addresses should be unique for all device as set by the factory. If the MAC of one of your routers is different from what is printed on it then this is probably what happened. Check out this link and see if it is similar to your situation. http://support.netgear.com/app/answers/detail/a_id/1086/~/no-internet-with-new-router,-computer,-or-adapter%3A-mac-spoofing
  12. I like the idea of tethering your Droid. I've been doing that for a while with mine. I usually get better than 1Mb/s download speeds. That's better than the speeds at most Universities I have been too.
  13. Nyphonejacks is probably correct about the screwdriver. Listen to him and don't use it.
  14. I don't know about the Ethernet over power thing, but it seems pretty expensive to me. I doubt that it would be as reliable as a wired connection anyway. Wired is more secure and reliable than wireless. You can't beat it for speed either. If possible run the wire. The wall jacks make terminating easy. You can get them at Bestbuy, Staples or Radio Shack. If you want to order them here is a link to Newegg. http://www.newegg.com/Product/Product.aspx?Item=N82E16812996030&cm_re=rj_45_jack-_-12-996-030-_-Product Here is how you connect the jack. Its not as hard as it looks. You can get away with using a small screwdriver if you don't want to buy a punchdown tool. Good luck.
  15. I don't have anything specific to contribute but you might look at the Howardforums web site. There is lots of cellphone info there. http://www.howardforums.com/
  16. If you go with the larger drive give Backtrack a try.
  17. The bootable USB drive is not really the best way to play around with Linux because usually the USB installs are not persistent. By that I mean that when you boot into the USB install and make changes to the OS such as screen background WIFI settings or anything else really they aren't saved. Rebooting causes all the changes you made to revert to whatever they were when you initially setup the install. I have a secondary hard drive in my PC with Ubuntu installed on it. With a dual boot system like mine you can use Windows or Linux according to what you want do. This really comes in handy when Windows crashes and you need to recover files. With dual boot any changes you make in the OS are saved and you can get really learn a lot about Linux.
  18. I tried out Damn Small Linux a while back. It is small enough to fit on your flash drive. Don't know how well it work on the Aspire One but it worked ok on the desktop PC I tried it on. Puppy Linux is another small one. Here is the link to DSL. http://www.damnsmalllinux.org/ I also recommend UNetbootin to make bootable USB drives. It comes with several Linux distros and some utilities. You might want to check it out. http://unetbootin.sourceforge.net/ Good Luck
  19. High level hacking. http://www.nytimes.com/2011/01/16/world/middleeast/16stuxnet.html
  20. You can find frequencies in your local area here. http://www.radioreference.com/apps/db/
  21. I just discovered that the University where I work uses public IP addresses on their internal network. The results of ipconfig in windows and a web site like whatismyip.com produce the same results. Everywhere else I have worked used private IPs internally and then NATed them through one or two public IP to reach the internet. Does anyone have any idea why the Uni might do that? It seems wasteful to me. I also did an ARIN search and found out that we own a block of Class B addresses that would seem to correspond to all the internal IPs on campus. What gives?
  22. The other thing you have to bear in mind, is universities & colleges were "the internet". Most colleges, universities and even many leading schools had interlinked campus networks a decade or two before there was any hint of widespread "public" access. They're the ones that made all the investment and lead the internet revolution. Personally I recon the next step is with wireless meshworking. Wireless 802.11s devices given IPv6 at manufacture that can communicate globally as long as they are in range of another 802.11s device. But there is still a lot of work todo in bandwidth management and routing (how do you manage finding a route to 3ffe:1900:4545:3:200:f8ff:fe21:67cf which is in Japan, when your address is 3ffe:1900:4545:3:200:f8ff:fe21:67ce in Moscow) The assumption has been that they can just scale up IPv4 to IPv6, but there is no pressure for this when the backbone is happy on IPv4, and public providers are busy locking up their customers in tiny localized networks. Good point about universities being "the internet." I'll have to find out how long the campus has been online. Also did the ARIN search on MIT. They are a /8. Pretty big network, or at least they have the potential to be.
  23. Thanks for the info guys. Guess I now understand why the world is running out of IPs.
  24. What about the cost? Do you think we pay a yearly fee for the addresses? I've checked several IP blocks around ours. They are mostly small colleges and universities. Sure seems a waste with us running out of v4 addresses.
  25. I have a new job at a small university. My background is electronics, computers and networking. I have no phone system experience but my boss has set me up with admin rights on the phone system. I think he expects me to learn the system on my own. This seems like it could be very interesting and I would like to pick it up quickly to make a good impression, earn more money, etc. The system is Avaya. We have a SIP server and a Telephony server. About all I know so far is how to setup an IP phone and get it working on the system. We use Avaya Communications Manager and the Native Client on the telephony side. On the SIP server I just login and interact with it using a GUI. I'm looking for suggestions on quickly learning the system. I have no malicious intentions and just want to do a good job. Any help or suggestions from the group will be greatly appreciated.