circuit for wlan repeater?
98899
See article in sources. \n\nA repeater can kill your throughput.  Two ways you might get around this are to have the repeater and WAP use orthogonal channels (i.e 1 and 11) and use directional antennas, i.e., the repeater might use a small dish, "cantenna", or yagi pointed at the WAP and another directional antenna pointed away from the WAP towards the area to be covered.
131655
If you do not move around much, and the AP does not need to provide service to a wider arc, I recommend a directional antennae.\n\nyou may find this website helpful:\n\nhttp://www.cantenna.com
437532
Possibly Rectangular Series Transformer (RST).  See Page 7 of the link.
986929
want cheap?  Try the loacte wirless seach tool that comes w/ your comp.\n\nIt will locate any in the area and display signal strength.  \n\nCheap is free and free is....well you arn't paying for it someone else is lol.
1153457
go to radioshack...they sell basic instruction manuals, circuits and all the bits you'll need
32955
Here's some instructions from Toms Networking Products Review for the Linksys Wireless-G Range Expander (WRE54G)
974581
depends on what you want I suggest a \nWireless-G Broadband Router with SpeedBooster\nThe Wireless-G Networking Solution with SpeedBooster Performance Enhancement\n\nwhere you can have one pc wired and one wireless \n\nmust have cat5 cables and a broadband connection
1150404
Cisco has a utility to calculate gain and loss of RF for their bridge. You can use that to find out how much gain you will get after 50 feet of cable if you know all db info of your device, cable, antenna.\nI believe WRT54G should be able to alter for outdoor use if you can spend time. But, you can put an outdoor wireless bridge at your roof or another AP/wireless router on bridge mode at attic (with good ventilation)  to get outdoor performance without running long RF cable.\nGood luck!
802418
Depends on what sort of frequency you are working at and how much inductance you want ; if it's a fairly low frequency RF you might put a little air-coil in as an inductor or just a single loop, maybe arrange for some mutual inductance between a pair of loops if your impedance matching network relies on a transformer.\nCould be something else of course but this is my best guess based on the information you have given.
934598
Try this website http://www.discovercircuits.com they have 1000's of circuits for all different applications
464881
Several options...\n\nYou can add a high-gain antenna to your router, if it has a detachable antenna type...\n\nYou can add a "Wireless access point" at a different location in the building...\n\nYou might consider re-locating your router...  perhaps it's in a shielded spot..\n\nYou can get a "repeater" which is connected through the building power wiring (though I've never actually tested one of these, and have my doubts about the bandwidth...)\n\nAn "amplifier"? No, because that would put your router outside the limits in the regulations - and probably do all kinds of horrid things to the signal. In addition, yo'd need one at each end of the link...\n\nYou could try a router with a MIMO adatptive antenna system, that might help.\n\nYou could also look at systems like Pre-N, which supposedly has a better range, though you'll need to replace all your devices with Pre-N compatible ones, to get the benefit.
1167165
You will find them here ...\n\nhttp://www.discovercircuits.com/R/rfid.htm\nhttp://www.electro-tech-online.com/electronic-projects-design-ideas-reviews/22061-need-help-rfid-circuit.html
371578
I have had the best distance results with the D-Link DI-784 -- it supports both 802.11b and 802.11g, and one of the two should be detectable by your wireless device.\n\nYou should know, however, that if you're talking about cinderblock walls, you don't stand a chance -- they kill the signal completely.
186229
Here are some sites that may help.  Both have circuit examples utilizing LVDT's.  Hope this helps.
947396
ideally and cheaply put one in the center of the house... this not only gives you good range for single access point but also reduces the amount of signal that goes out to the surrounding area.... so that someone in the street finds it harder to find your signal...\n\nIm not sure what kind of wireless router options Comcast offer... but make sure you get a wireless router/modem option that has strong security / encryption for your signal.. as the signal transmitter will be close to an external wall... \nI have a Belking wireless modem/transmitter for my connection that not only has a strong signal and encryption but also has an option for "Bridge".\n\nThis means i can get more of them and use them in Bridging mode. You then enter the MAC addresses of the routers on either side of it and it will talk  to them (only them)  and pass the signal along.\nNo extra network cables... all you need are places that you can put a extra hardware with a plug socket. I have used this configuration in 4 story houses and it worked fine.\n\nso bascially find a quality router that offers the bridge option.\n\nremember that you WILL need a computer with a nic card in it to set the routers up... if its a laptop even better... as you will need to check them just like any access point that is not directly attached to a network cable.\n\ngood luck.
98829
rf modulator.\nhttp://www.radioshack.com/search/index.jsp?kwCatId=&kw=rf%20modulator
250774
The amp is only going to help a little bit.  What you would need would be repeaters set up along the outer range where the signals fade.  A 10 mile span would need quite a lot of repeaters and is a serious undertaking.