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Hardware Equipments for GSM All about Hardware Instruments and equipments like Soldering Stations, Hardware Tools, Oscilloscopes , Frequency Counters ..ext. |
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03-04-2006, 18:31 | #1 (permalink) |
Freak Poster Join Date: May 2005 Age: 49
Posts: 138
Member: 148029 Status: Offline Thanks Meter: 9 | wireless signal booster anybody have schematic for wireless signal booster for gsm or any other type signal booster schematic. my area is very signal poor area pls help |
The Following User Says Thank You to abdullatheef For This Useful Post: |
09-24-2009, 00:48 | #5 (permalink) |
Banned Join Date: Jul 2009
Posts: 542
Member: 1071056 Status: Offline Thanks Meter: 897 | Homemade Cell Phone Signal Booster Before we proceed any further, we cannot stress enough that any homemade solution is purely experimental and there are no guarantees that your cell phone reception will be improved in any way. Before resorting to a homemade cell phone signal booster, we suggest that you look into other avenues like commercially available signal boosters, different mobile phones, or other official solutions. What you will read below are two methods for creating a homemade booster. Neither has been tested by LoveToKnow staff, so do take care if you choose to attempt what is described below. Typically, there are several reasons why your cell phone reception may be poor, but most commonly it is because of the inhibiting features of walls and other structures that may block the incoming signal. It is also noteworthy than certain phones from certain manufacturers are known to have better reception than others. Do your research before you make any major purchase. Will a Coat Hanger Work? Jason O (Username Jdo300) of physicsforums.com discovered a rather interesting quirk with his cell phone. As with so many others, Jason was suffering from rather poor reception in his house. In an effort to actually be able to take and make calls, Jason decided to fashion a homemade cell phone signal booster. His mobile phone came equipped with a small stubby antenna. What Jason decided to do was to remove this stub and replace it "with a large, homemade one." This homemade signal booster consisted of nothing more than a screw and a metal coat hanger. Although this is far from being any sort of official solution, Jason reports that "it works great despite its obvious cheapness." To his knowledge, this will only work with cell phones that have external stubby antennas, so if you have something like a Motorola RAZR (which has an internal antenna), it might not work. That said, most cell phone usually have a rubber-covered opening near the back where you can attach an external antenna. Obviously, you should proceed with caution with any experiments such as this. There is a possibility that you may void your warranty, harm your handset or otherwise cause irreversible damage. The Coffee Can Booster: Video Tutorial In looking for the best cell phone signal booster that you can make right at home, we came across a fantastic video from the people at PopSci. The video tutorial -- which you can view on YouTube -- shows you how to construct a rather powerful signal booster using little more than an empty coffee can! There are obviously other components involved, but the video does an excellent job of walking through the entire construction process. Near the end, Mike Haney mentions that this signal grabber is designed to nab the 1900MHz band, so it's probably most effective with providers like T-Mobile and Rogers Wireless which use this frequency. Check with your mobile operator to see which band/frequency they use. http://www.youtube.com/watch?v=zwNZGuKzGWY |
The Following User Says Thank You to bestin For This Useful Post: |
09-24-2009, 01:06 | #6 (permalink) |
Banned Join Date: Jul 2009
Posts: 542
Member: 1071056 Status: Offline Thanks Meter: 897 | Bi-Directional 2.4 GHz One Watt Amplifier With Receive Pre-Amp Some designs are for research only. Advanced microwave and RF design skillz will be required to build these circuits. This will show you how to add a bi-directional, 2.4 GHz amplifier to your Proxim Symphony for under $100. Bi-directional means you can mount the amplifier at the antenna to help overcome any cable loss, and the amplifier will automatically switch between receive and transmit modes. The cost is reduced by using readily available materials and components. Also, instead of a complicated RF sensing transmit/receive switch, a logic level indication of transmit is sent to the amplifier through a length of low cost coaxial cable. The final RF power output of this amplifier will be around +31 dBm (1.3 watts) and the receive gain is around 16 dB (with a 2 dB noise figure). If adapting for use on direct sequence spread spectrum systems, you'll want to lower the overall P1dB (+28 dBm or so) to keep the RF power amplifier in its linear region. To do this, attenuate the RF input power slightly.Schematics Most schematics are in their native Xcircuit PostScript format for ease of printing and modification. To use PostScript under Window$, you'll need to install the Ghostscript & Ghostview packages. Set Media to A2 for ease of viewing.Commercial Amplifiers Here are some really nice commercial 2.4 GHz amplifiers.FCC Records & Pictures of Commercial Amplifiers Construction Notes Start by reading the data sheet for the RF Micro Devices RF2126 1 watt 8-pin PSOP 2.4 GHz amplifier IC. If you are up to working with this device, call RFMD up at 336-664-1233 and order a few (around $7 each), or ask if they will send you some free engineering samples.Datasheets & Notes Insertion, DC Power Input & Control Stick the entire amplifier board inside a well designed waterproof case (Hammond boxes are perfect) and mount it right next to your antenna installation or on the antenna mast. You should run LMR-400 coax for the RF input feed line. The DC power for the amplifier is also inserted in this line, so you'll have to modify your Symphony to allow that. Run RG-6 quad-shield coax (Radio Shack #278-1317) for the amplifier's control line. Run this along side the RF input feed line and try to keep this line as short as possible. You can use normal F connectors on the control line if you desire.Operation Notes This bi-directional amplifier uses an external control line to switch between transmit and receive modes. This eliminates the complexity of a homebrew RF sense circuit. The components and design are such that anyone with some experience in microwave circuit construction should be able to build this amplifier. You can then mount this amplifier directly at the antenna or, for a much easier setup, just a few feet away from the Symphony card.Pictures View some of the construction pictures. Note that most of these cover prototype and experimental amplifiers.Cautions & Notes
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The Following 3 Users Say Thank You to bestin For This Useful Post: |
09-24-2009, 19:20 | #7 (permalink) |
Freak Poster Join Date: Nov 2003
Posts: 370
Member: 44625 Status: Offline Thanks Meter: 36 | Most people using cell phones are on 900 and 1800MHz (1.8GHz) frequencies on GSM networks. Some are on 850 and 1900MHz. Why make a 2.4GHz booster? It may be good for bluetooth and Wifi, but cell phones? |
The Following User Says Thank You to Trion For This Useful Post: |
03-17-2012, 12:53 | #8 (permalink) |
Junior Member Join Date: Feb 2012
Posts: 4
Member: 1725378 Status: Offline Thanks Meter: 0 | You can get all kind of information regarding the cell phone boosters and cell phone amplifiers on our <a href=”http://cellphoneboosterstore.com/”> website </a>. You can always come to our website if you have any kind of queries regarding cell phone signal boosters and cell phone repeaters. |
03-23-2012, 05:48 | #9 (permalink) |
Junior Member Join Date: Feb 2012 Location: Bangladesh
Posts: 3
Member: 1723476 Status: Offline Thanks Meter: 4 | poor signal solution i don't know the exact solution. but may help you. you may visit the website for your solution Decision Group |computer forensics | Network Forensics | Lawful Interception | Cyber Security i think you will serve your purpose. |
03-25-2012, 17:24 | #10 (permalink) |
Junior Member Join Date: Mar 2012 Location: wakefield
Posts: 1
Member: 1739372 Status: Offline Thanks Meter: 0 | Problem-solving is the lack of GSM professionally. I work in the all territory UK, EU. If you have a problem call 07511552705 or http://www.gsminstallations.co.uk/ greet. |
03-26-2024, 11:30 | #13 (permalink) |
Major Poster Join Date: Jan 2022 Location: Germany, Munich Age: 36
Posts: 41
Member: 3005236 Status: Offline Thanks Meter: 8 | Experiencing a weak mobile connection can be incredibly frustrating, especially when your work relies on staying connected. That's why Uctel provides a range of mobile signal coverage solutions tailored for commercial buildings. Whether you're dealing with dropped calls or sluggish data speeds, Uctel's offerings, available at https://www.uctel.co.uk/in-building-...gnal-solutions, are designed to ensure reliable connectivity when you need it most. Don't let poor signal quality hinder your productivity—explore Uctel's solutions today. |
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