Search results

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    Solar Panel + Super Bright LED Strips for Night Sign

    I would put the solar cells on top as noted above, in a box that shields them from view. some people just have to steal solar panels and some people just have to break glass.
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    Capture traffic in and out of OBDII port?

    Arduino OBDII adapters: https://forum.arduino.cc/index.php?topic=171058.0 https://www.sparkfun.com/products/9555 https://learn.sparkfun.com/tutorials/obd-ii-uart-hookup-guide
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    (How) Do divining rods work?

    BS does not dispel, it spreads.
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    (How) Do divining rods work?

    years and years and years and years ago, I was arguing a point of science with a man of faith. he eventually ran out of ideas and said "you know, i wouldn't care if you are right. you're such a smug jerk about the way you say things that I would rather be wrong than agree with you" reading...
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    How does NAT and VNC work?

    I believe the answer is: you need to port forward past the NAT to the ISP. the NAT is an obstacle, port forward is the way past it.
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    TV-Transmitting Antenna 490MHz

    there is one kind of omnidirectional horizontal antenna: the turnstile array. two dipoles with a 90 degree phasing harness there are a few vertical omnidirectional antennas with gain. the one that might be useful for you would be a collinear array four collinear arrays arranged as two...
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    Mythbust this please.

    yes, it would work. no, it's not legal simple inexpensive legal solution, if the content is suitable for amateur radio: 1) get an amateur radio technician license. It's a 35 question test. 2) get a frequency agile RF modulator from eBay. ChannelPlus 5525 at $80...
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    Needing a little advice on a Computer Video system

    A generic hint for asking questions on message boards: Paragraphs. you organize your thoughts into groups, and separate them. you make paragraphs with the ENTER key. big rectangle on the right side of the keyboard A big wall of text is not a sign of an organized mind.
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    Is the universe/galaxies all on a general plane?

    the fact that we can see spiral galaxies proves that they are not in the same plane. if all galaxies were in the same plane all galaxies would look like a line with a bump in the middle
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    if LED lights are so efficient then why do they get almost as hot as incandescents?

    the ratio of light produced versus heat produced is where the efficiency can be found
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    What would happen if the Earth had a total blackout for a few days?

    web site said sun outage, not power outage. to know what would happen peruse this website: http://www.survivalistboards.com/ It would be TEOTWAWKI it and everybody would grab their BOB and take the BOV to the BOL because the SHTF. I find their communications recharges my dingbatteries...
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    How are we able to send a satellite signal so far out to space?

    the parabolic dish for the earth station was 210 feet across. then they added to it: http://eecue.com/a/1581/Goldstone-NASA-Deep-Space-Network.html a story you won't hear anywhere else: that bright white thing is a subreflector. the antenna is a catadioptric, AKA a Schmidt-Cassegrain, a...
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    DIY HDTV Antenna

    bigger antenna element diameter = wider bandwidth. in simple terms, it works better for more adjacent channels. if you are making an antenna with wire elements, thicker wire = thicker elements. so thicker wire is better. Copper pipe or aluminum tube is way better. which is why commercial TV...
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    2km wireless bridge

    boring tedious essential technical details: http://www.wirelessforums.org/how-tos/wireless-103-long-link-67730.html
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    Nuclear Car

    shipyard workers have twice the cancer rate of the general population. workers on nuke subs have 6 times the cancer rate of the general population. workers who refuel nuke subs have 12 times the cancer rate of the general population. per the union at the shipyard I worked at in 1978
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    Tkip+aes?

    the point of TKIP+AES was to make the router available to people who had old technology and people who have new technology. If you don't have 1996 laptops in use it serves no purpose.
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    Pulse frequency modulation

    an FM 2 way radio, yes. AM, probably not. they would hear a buzz. FCC might get cranky if you don't have permission
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    What is DD-WRT?

    routers are computers with at least two network interfaces; wireless routers have 3. A wireless router has a wireless interface that functions as an Access Point, an AP the manufacturers firmware allows the interfaces to perform one task; passing network traffic from a LAN to a WAN. The...
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    Old VHS movies

    google helican scan video tape
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    Detecting spread spectrum

    yes, those are spectrum analyzers. the third from the left seems to be showing a spread spectrum signal. you look for a big wide hump in the noise floor. narrowband signals show up as a spike sticking up out of the noise floor.
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    Detecting spread spectrum

    with a spectrum analyzer. bring money.
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    CMOS sensor chip, what limits it from saving 2400p 120fps video

    there is a finite rate at which data can be reliably transferred off the chip. Think of a square wave as rise time - dwell - decay time. You need some stable dwell time so the device the data is transferred to can reliably read the data. If you reduce dwell to zero, all you have is rise time...
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    Security Camera suggestions

    http://www.diysecurityforum.com/index.php?PHPSESSID=itp3vniepl081ud22rva4gtra2&board=20.0 read first: http://www.diysecurityforum.com/index.php?PHPSESSID=itp3vniepl081ud22rva4gtra2&topic=17357.0
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    (How) Do divining rods work?

    the second book printed on a printing press ( first was the Bible ) was De Re Metallica, http://en.wikipedia.org/wiki/De_re_metallica a treatise on detecting and mining minerals. this was also the first book to have "Dowser uses divining rod A to detect..." they are wearing hoods because...
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    (How) Do divining rods work?

    the psychic hotline does not call you and say "You will be using Visa number 1234....."?
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    How can they tell what a star or galaxy is made of just by observing the light?

    this is precisely what happens in Abbies beloved spectrum analyzer in NCIS. Material is burned, the burned material emits light that has a spectral signature unique to and characteristic of the burned material. pesticide analyzed with a GC/MS AKA Gas Chromatograph / Mass Spectrometer AKA Mass...
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    (How) Do divining rods work?

    if anyone is actually interested in the subject; http://www.amazon.com/Divining-Hand-.../dp/0924608161 I wonder how many of the people who posted The Definitive Word Of God As Revealed By Yours Truly ever tried.
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    (How) Do divining rods work?

    do this. walk around a fire hydrant - you know there is a charged high pressure system feeding that hydrant. if the hydrant is in a row of hydrants, with more hydrants upstream and downstream, the rods should cross twice as you walk around the hydrant. observe closely the manner in which they...
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    Wrt54gl

    DD-WRT is the reason to buy a WRT54G. I have three running as wireless bridges, five as a Freifunk mesh network, one as a web server that lets me access the configuration pages of everything on the network, three as APs, and two as a VPN server / client pair. if I tried to do this with any other...
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    What ebay seller of RJ45 connectors?

    at best that leads to this at worst: if the boss or the customer insists on neat and orderly, roll your own. if you want the cable to sit where it obviously needs to go, roll your own.
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    Can the space shuttle take off from a runway?

    I have to wonder how many people here are pilots. There are some remarkable posts here, indicating remarkable thought processes. ( Private pilot single engine land ) There is a term called Wing loading: pounds of aircraft per square foot of wing: Cessna 150: docile trainer. 10 pounds per...
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    Best router for long range on a budget?

    Ubiquiti bullet, described here. One on each end. http://www.wirelessforums.org/how-tos/wireless-103-long-link-67730.html
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    Is My IP Address Exposed?

    chances are you are buried under layers of NAT addresses. When I look for my IP from the Internet side I see an address in El Paso, Santa Fe, Albuquerque or Denver. I am in fact in that area, but so are a million other people.
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    Extending WiFi Coverage

    a faster way to do it, using a router and a bridge: http://www.wirelessforums.org/how-tos/configuring-network-wireless-bridge-53364.html
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    Connect to wifi 1/3+- mile away?

    http://www.wirelessforums.org/how-tos/wireless-103-long-link-67730.html the hows and the whys
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    (Wireless) I am a little bit stumped here

    drop their RF connections to each other, or their wired connections to each other, or their connection to the internet? when you ping from the nearest to the farthest device on the signal path, where do you lose connectivity? can you ping an IP outdide your local network?
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    Do you assign a static IP to your machine? (for a home network)

    I want: Routers & APs 192.168.1. ( 2 - 19 ) Computers 192.168.1. ( 20 - 29 ) printers, scanners 192.168.1. ( 30 - 39 ) DVRs & video devices 192.168.1. ( 40 - 49 ) so static for devices that don't access the internet; Static DHCP for computers because the DNS address changes dynamically One...
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    How do I put wireless within wireless?

    what you need http://www.wirelessforums.org/how-tos/wireless-101-day-one-65311.html how to do it. http://www.wirelessforums.org/how-tos/configuring-network-wireless-bridge-53364.html I would not use a cantenna for a spitoon. Patch, dish or yagi for me, thank you.
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    Resetting a DDWRT router and staring over

    if you connect the bridge, only, to a computer via a CAT5 cable on a LAN port it's the only thing that can respond. one computer, one device, no confusion
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    Thinking of changing careers to IT

    the CCXX certs are about Cisco; only Cisco do not discount the CWNP certs: http://www.cwnp.com/certifications/
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