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Admin

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  1. yagi

    ,,, most of the antennas on this forum are for 50 Ohm coaxial cable adaptation...!!
  2. TP-Link CPE510/520 is a 5 GHz outdoor access point similar to Ubiquiti NanoStations. There is also a 2.4 GHz Version of this AP, the TP-Link CPE210/220. The device has a built-in 13 dBi 2x2 dual-polarized directional MIMO antenna with a beamwidth of 45° (H-Plane) and 30° (E-Plane). Installation 1,Connect the TP-Link CPE510 with your computer via ethernet 2,Set the IP address of your computer to 192.168.0.10 with a subnetmask of 255.255.255.0 3,Open your browser, go to https://192.168.0.254 and accept the invalid certificate 4,Log in with user "admin" and password "admin", change the password in the next step 5,Go to the "System" tab and upload the OpenWrt firmware in the "Firmware Update" section and select "Restore" in the dialog promted the filename is limited to a length of 68 characters (as of: "1.3.0 Build 20150612 Rel. 50997", the real limit seems to be 80 characters - including the implicite prefix "C:\fakepath\") 6,Follow official OpenWrt setup instructions (e.g. IP address of the device is now 192.168.1.1)
  3. The cross antenna is a medium gain and circular polarization structure made of a conductor or a strip line over the ground plane following a cross contour of four or more branches.The construction repeatability is verry easy as well the facility to obtain 14dBi gain in a small antenna.
  4. Wardriving - (eng. wardriving - combat driving) scanning broadcast on a frequency of 2.4 Ghz with the goal to find as many wireless access points Wi-Fi (Acces Point or Hotspot). Typically the "on wheels", hence the name WarDriving. Wardriving - not necessarily hacking. Most often it is just harmless collecting, attempt to discover as many access points and put them on the map as proof of your achievements =) But many for personal gain or just for fun hacking wireless networks using equipment and specsoft for the exploitation of vulnerabilities in Wi-Fi, since its protection in the first implementations was, and still is full of holes like a sieve =) Few know what wardriving, although he did not appear yesterday. Now, thanks to articles in some journals , as well as publications on the Internet wardriving goes to mass. Many, my wifi technology, Intel Centrino, etc. rushed to use all these charms of the era of high-tech, unaware that their network can break any student. This website is not intended to be a global RTFM on wardrive, and without missing (unfortunately, most of them in English). This is a rather small collection of content on the topic, assembled enthusiastic person... In connection with the opening of the new section on wireless security, decided to write an article that would help beginners to answer many of the questions at the first acquaintance with the vulnerabilities of wireless protocols. To write what is wi-fi, wardriwing about the wireless standards, I will not, on this subject is already enough information in this section. I certainly do not consider myself a Pro in this, but a couple of tips I can give, and in General I would like to organize some knowledge on the subject. The repeatedly asked questions like: "What is the better adapter to buy for wardriving'a?", "What software to use and how to configure it?", etc. to all these questions, I will try to answer. 1. Why do I need it? Indeed, at the beginning would do well to ask ourselves the question, what is it you want to do wardriving'? All people have different motivation for this. Explore wireless protocols, and without the risk of being caught for illegal activities and causing extensive damage and, of course, to bear in all that criminal liability. I'll tell you about both sides wardriving'. First, some do it only for fun, finding the access point, and by mapping their location and information is quite harmless, as these cards can be useful and other people involved in the analysis of wireless networks. Also something else that is not bringing any harm to the direct application of the markings on buildings, sidewalks, fences about wireless network availability, learn more about these characters in the app. The second part wardriving'and applies directly to the discovery of vulnerabilities, benefits and damage. One of the main purposes of hacking wifi networks is gaining access, and illegal use of another channel when working with internet, despite the fact that in our time, free access points are becoming more and more, getting free Internet is a threat to wireless networks. But as you can see not only free Internet you can make money in wi-fi networks. The second threat is in most cases practically not protected traffic is transmitted in wireless networks, as far as we know traffic is transmitted by air, unlike wired networks, and if you have a particular software is not be easy to intercept unprotected traffic, from which you can get enough useful information, such as usernames, passwords from various services, the wep keys closed wireless nodes, etc. also, nothing prevents portati any machine in the network, and use it to their advantage. For special lovers of brutal solutions that are easily implemented dos attacks on the network-class wi-fi, just one powerful adapter(about 400-500 mW) and a good antenna, you can easily launch an attack "denial of service" at any point. These are all basic attacks, also there are many other types, such as attack type "man in the middle" attack on a RADIUS server, attacks on the first and second network level, and so on. General facilities study of wireless protocols is very broad and I think that after reading the above you have already decided what you will do and what it is you really need. 2. Preparation equipment. 2.1. Iron Regardless of whether you chose a legitimate path of study or not, you should prepare the equipment for analysis and implementation attacks. First you need the device that will take your high-frequency research. If you're not going to cross the line of law, but only to study wireless networks and their location, some information, for these purposes, it is quite suitable conventional PDA with a built-in or external wireless module, the necessary software for pocket PC, you can find here. Also quite possible to detect wireless networks and get information about them you can use the portable console . For a more serious study, you can use a sub-notebook or a regular laptop with a wireless adapter, or specialized spectrum analyzers. Also, if you use adapters with a small signal strength, you may need a power amplifier or a good antenna(more about antennas here). So with the device decided, it remains to select the adapter, in the case of a PDA, it's much easier, and many models have built-in wireless adapters if one is not available, you can buy an external adapter, the most common connector CF. In the case of a laptop it's much more difficult, the market provided a huge amount of external adapters, although modern laptops are increasingly common built-in adapters, I would suggest to buy external, you'll soon see why. For the standard study wireless networks without any serious interventions, the model and chipset of the adapter is not critical, as long as it was compatible with the software, and if you are going to work with maps and gps adapters.Now consider the adapters for combat purposes, here is a little more complicated, firstly not all adapters are compatible with the software, and still have to decide which OS will deal wardriving'ω personally, I suggest to put Linux, or FreeBSD, since the OS is designed for these much more soft than under all your favorite Windows. So let's go straight to the adapters a long time to paint, I will not, let me just say that the main criteria for choosing a combat card is a chipset, connectors for external antennas, and power built-in transmitter. With the adapters figured out there the last part is the antenna, I don't want to copy-paste existing info, so learn more about antennas you can read here. 2.2. Soft Start looking at the software used for wardriving'a. I'm not going to tell you about all the software, and give a bunch of links to download, I just wanted to introduce you to the software most often used in wardriving'e, and which will be more understandable to beginners, I want to divide the software into several categories: 1. Scanning, information. 2. Hacking, the selection of wep, wpa keys. 3. Dos attacks, generating frames. With the first category, I think everything is clear, just before active actions to discover the network and get some information about her. The first tool in this category is NetStumbler, a well-known product, excellent scanner to detect access point, and outputs the maximum of useful information, have the opportunity to work with a gps receiver, the platform is Windows. Linux system as there is a great software product, Kismet, a great scanner with lots of features. To scan and retrieve information this software is enough. There is a common mistake when beginners, download a bunch of software, and don't know what to do. NetStumbler Kismet The second category I want to include only one program which don't have analogues, it is Aircrack. There is a version both under win and under nix. A good software product, able to easily crack any wep and wpa keys. Built-in sniffer allows you to intercept the required number of packets to decrypt the key. The possibility of opening a key, as the selection and dictionary. On a more detailed configuration of the program may be read in my article . Aircrack The third category is the software used for more violent purposes. One of the most effective programs in this category is void11. C this program implements a dos attack by flooding the frames and sending requests for session termination. The most destructive program in its class, able to attack hosts on the list, you might need for active protection of your network. 3. Where and how to start fighting. I hope you have already prepared the necessary equipment and software, now proceed directly to combat operations in the city. If you don't know of any places in your city where the access point does not matter, you can see list of available access points in your city on the website freewifi.ru if you don't find any points on this site, you will have to look for yourself, in General, the big work it will not be enough to translate mode the scan software, which I've mentioned above, and just to ride around town with your wi-fi device(PDA, Laptop, PSP). Look for the access point preferably in the center of town, where more business offices, hypermarkets, etc. After finding the available points should specifically focus on one of them, and to engage in more detailed study, to determine the signal bandwidth, the presence of encryption, etc. Then, you can decide exactly what we need from this point, free Internet, network traffic, or just to get back at someone, and to have a big dos attack. 4. Conclusion. In this article I tried to show newcomers how interesting may be the study of wireless networks, as well as to give the first push, and tried to explain in General terms why we should start to do wardriving'ohms. I was not here to describe in more detail some types of attack, and configuration of software, I just wanted to encourage the reader that he would have had the motivation to further, independent study of this area.
  5. Antennas are essential wherever wireless communication required. They are the indispensable link between the contained signal and the “ether”. CST provides a variety of tools for each stage of the antenna design flow to study and improve your design. Antennas are used in a vast variety of applications, and thus take come in a vast variety of form factors and radiation mechanisms. The range of simulation methods in CST MWS allows the engineer to choose the best technique for each application. The transient solver could be best for wideband or planar antennas, the frequency domain solver may be more suitable for electrically small antennas, while the integral equation solver can efficiently simulate electrically large or wire antennas. Antennas never operate in isolation, but are attached to a feed network. CST DESIGN STUDIO™ (CST DS) allows the hybrid co-simulation of the effect of an attached circuit on the antenna performance. Installation of an antenna in a device or on a platform makes its analysis even more complex. The System Assembly and Modelling framework in CST DS allows the user to set up coupled simulations which can combine different solvers automatically by making use of field sources. Finally, powerful automated post-processing allows you to extract every magnitude of interest for an antenna designer – nearfield plots, SAR, phase center, directivity or farfield gain for single antennas or arrays - and to process those data further for use in parameter sweeps or optimizations in order to improve the performance of your design. Few pictures started...
  6. Name and model: Alfa Network 1000mW AWUS036H Chipset: Realtek 8187 L monitor and reinjection mode: Yes, Data and specifications Remarks: The adapter No. 1 for audits, especially reinjecting in monitor mode in windows technology B / G is becoming obsolete, somewhat unstable in navigation. Possibility of using high power application alfatools accepts promiscuous mode. WIRELESS SECURITY RECOMMENDED for use in monitor mode. Name and model: Alfa Network AWUS036NH Chipset: Ralink RT3070 monitor and reinjection mode: Yes, Data and specifications Notes: After the previous model, it is the second best choice for monitor mode. Has many supporters as detractors, saturated environments was somewhat unstable in navigation, supports standard N Name and model: Alfa Network AWUS036NHA Chipset: Atheros AR9271 monitor and reinjection mode: Yes, Data and specifications Remarks: Connector for exchange or connect more gain antennas, standard IEEE 802.11b / g / n with a transmission capacity of 150 Mbps data Somewhat less powerful than the two previous models to monitor alpha mode, but more sensitive and stable her sisters to navegar.En new models have replaced the atheros chipset AR9271L. Name and model: WNDB-ANT Connection Dual Band Chipset: Ralink RT2870 / RT3070 monitor and reinjection mode: Yes, Data and specifications Comments: Very good adapter and monitor navigation mode, the option to use 5 Ghz makes it much more versatile than any other adapter, external antenna connector for 2.4 GHz and integrated antenna for use in 5Ghz. Name and model: Signal King N 360000 Chipset: Ralink RT3070 monitor and reinjection mode: Yes, Data and specifications Observations: RPSMA connector to exchange antennas different model and gain Name and model: Startech USB300WN2X2D Chipset: Ralink RT3572l monitor and reinjection mode: Yes, Data and specifications Comments: Very good adapter 2 connectors antena.Doble 300 mbps.Mimo2T2R band. Name and model: TP-LINK TL-WN722N Chipset: Atheros AR9271 monitor and reinjection mode: Yes, Data and specifications Observations: RPSMA connector to exchange more gain antennas of the best adaptadadores for its relacción quality / cheaper price.The with excellent results, only 100 mw will limit their power in monitor mode. To overcome the above mentioned is advisable to use with antennas direccionales.Tambien is recommended for use with an amplifier. Name and model: ASUS USB-N14 Wireless N-300 Chipset: Ralink RT5372 monitor and reinjection mode: Yes, Data and specifications Comments: Very good adapter at an unbeatable price, dual-band. Name and model: WNDB-ANT Connection Dual Band Chipset: Ralink RT3572 And reinjection monitor mode: If, Data and specifications Notes: The option to use 5 Ghz makes it versatile. 2 external connector 5 dBi antennas to use in both frequencies, the power adapter is minimal. Name and model: Alfa AWUS036NEH Chipset: Ralink 3070 monitor and reinjection mode: Yes, Data and specifications Observations: threaded external antenna rp-sma Name and model: Connection WANT 15-3W Chipset: Ralink RT2870 / RT3070 monitor and reinjection mode: Yes, Data and specifications Remarks: Good adapter monitor mode, does not give the power of 3 watts advertised, high-gain omnidirectional antenna. Name and model: Connection WANT9-2W Chipset: Ralink RT2870 / RT3070 monitor and reinjection mode: Yes, Data and specifications Observations: Connector to exchange more gain antennas incorporates omnidirectional antenna 9 dBi .No gives 2 watts of power advertised. Good performance in monitor mode. Name and model: Wifiscan WS2024e Chipset: Ralink RT3070 monitor and reinjection mode: Yes, Data and specifications Observations: AIO adapter + directional antenna 14 dBi gain Name and model: Wifiscan 2000mw / 6dbi Chipset: Ralink RT3070 monitor and reinjection mode: Yes, Data and specifications Observations: Aerial 6 dBi antennas RPSMA connector to exchange more profit. Name and model: TP-LINK TL-WN727N Chipset: Ralink RT2870 / RT3070 monitor and reinjection mode: Yes, Data and specifications Remarks: internal antenna. Name and model: Alfa Network 500mW Wireless USB Adapter AWUS050NH Chipset: Ralink RT2770 monitor and reinjection mode: Yes, Data and specifications Remarks: external antenna connector. Name and model: Alfa Network AWUS036NHR Chipset: Realtek RTL8188RU And reinjection monitor mode: If, Data and specifications Notes: RPSMA connector to exchange antennas. Audita well only medium distances. Not recommended for use in monitor mode. There is a version v2 Name and model: Érize ERZW54-USB04RS300 Chipset: Realtek 8187 L monitor and reinjection mode: Yes, Data and specifications Remarks: external antenna connector, it supports promiscuous mode, possibility of using high power application alfatools Name and model: Érize ERZW54-USB03H1W Chipset: Ralink 2571 w monitor and reinjection mode: Yes, Data and specifications Remarks: external antenna connector. Name and model: kasens 2000 mw Chipset: Realtek 8187 L monitor and reinjection mode: Yes, Data and specifications Remarks: external antenna connector, posiblilidad alfatools application using the high power driver supports promiscuous mode. Model name: Edimax EW-7711USn Chipset: Ralink RT2870 / RT3070 monitor and reinjection mode: Yes, Data and specifications Remarks: external antenna connector to exchange more gain antennas. Name and model: TP-LINK tl-wn422gc Chipset: Atheros AR9271 monitor and reinjection mode: Yes, Data and specifications Observations: connector for exchanging different antennas profits. Good choice quality, price Name and model: TP-Link TP-WN321G v4.1 Chipset: Ralink RT2870 monitor and reinjection mode: Yes, Data and specifications Observations: a little deaf. 100mW. without antenna, MOD. Name and model: TP-Link TL-WN422G USB 802.11g 100mW Chipset: Zydas zd1211rw monitor and reinjection mode: Yes, Data and specifications Remarks: supports promiscuous mode. There is another similar model but without external antenna, the TP-LINK TL-WN322G .Del TP-Link TL-WN422G-there are two versions v1 has the zydas zd1211rw chipset and Atheros AR9271 v2 Name and model TP-Link TL-WN321G Ralink RT73 chipset monitor and reinjection mode If, Data and specifications Remarks: internal antenna Name and model: Érize ERZW54-USB04RS1W Chipset: Realtek 8187 L monitor and reinjection mode: Yes, Data and specifications Notes: works perfectly in both managed and monitor mode. I do not know if the application alfatools sevira also for erice 1w, accepts promiscuous mode. Name and model: Érize ERZW54-USB04RS800 (800 mw) Chipset: Realtek 8187 L monitor and reinjection mode: Yes, Data and specifications Observations: I think that is the twin brother of gold 800mw externally, sensitivity is higher in the gold 800mw, supports promiscuous mode. Name and model: WIFLY-CITY 1500MW 20G Chipset: Realtek 8187 L monitor and reinjection mode: Data and specifications Observations: economic Adapter (14 €) connector sma, configurable antenna with alfatools, configurable with the driver and utility of Alfa 1w, internal heat sink. Name and model: WIFISKY 1000 mw Chipset: Realtek 8187 L monitor and reinjection mode: Yes, Data and specifications Remarks: external antenna connector, high sensitivity, supports promiscuous mode, possibility of using high alfatools chipset power application Name and model: HIGH POWER 500mw USB LAN CARD Chipset: Realtek 8187 L monitor and reinjection mode: Yes, Data and specifications Remarks: external antenna connector, it supports promiscuous mode, ability to use the application alfatools high power driver Name and model: freewifilink FL2016G 1000 mw Chipset: Realtek 8187 L monitor and reinjection mode: Yes, Data and specifications Notes: Known as Black Dragon, external antenna connector, it supports promiscuous mode, possibility of using high alfatools power application
  7. Interesting, very interesting program to check network security in linux and windows:http://sniff.su/download.htmlhttp://intercepter-ng.blogspot.ru/20...1_archive.html
  8. Double Patch Regular Polyhedron The rectangle 94*68 mm, the sides of the cutting plane 28 and 16 mm rack Diameter 6 mm. each patch has an input impedance of 100 Ohms, between 0.5 *Lambda of the connecting line. Obtained by parallel connection of 50 Ohms. And cool chart SWR the broadband is a patch in the form of an pseudo- ellipse with eccentricity 0.8, 2 Patches of narrow-band, but with the increase of the gap band of operating frequencies increases at 0.1 Lambda reaches 10/11 %. When band gaps, increases the ability of multi-mode excitation. With the increase of the gap increases and the value of the input impedance. Based on this information, can built a patch with a gap from the reflector is 15 mm. The line length is 0.5 L, so its width is not critical. In this project its width is about 2 mm d = 1 mm The gap( between the surfaces) 15 mm width to reflector Conn. line 13 mm. the distance between the two coherent emitters choose, usually based on two criteria. Or the maximum gain, then it's 1 lambda or a little more. Or at a minimum side lobes, then it is less than lambda, about 0.7/0.8.
  9. Planar microstrip antenna arrays have conformal nature andgood directivity. However, they have low efficiency because or feed network losses and higher cross-polar radiation from the feed network. Reflector antennas provide high gain but their curved reflecting surfaces and large weight are disadvantages.To mitigate the above problems, space-fed microstrip antenna arrays have been proposed.
  10. Offset irradiator in the range of 1670-1720 MHz. Ra=50 Ohms. GAIN=10 dBi. It is intended for use as part of equipment (mirror antennas) for receiving L-band RCPH signals from geostationary satellites. Electrical characteristics Operating frequency range, MHz 1670 - 1720 Native gain, dBi 10 The resulting CU and radiation pattern width in terms of level is 3 dB for different diameters of an offset parabolic antenna (at a frequency of 1695 MHz) with an F/D ratio of 0.5 0.55 m 17,5dBi 21 gr. 0,6 m 18,6dBi 19,5 gr. 0.9 m 21,7dBi 14 gr. 1.3 m 25dBi 9 gr. 1.5 m 26,4dBi 8 gr. Width of the bottom of the irradiator in the H-plane by level-10dB, deg 100÷115 Width of the bottom of the irradiator in the E-plane by level-10dB, deg 100÷115 Input impedance, Ohms 50 SWR in the operating frequency range, max. 1,3 Permissible power, W 10 Polarization of the irradiator\offset mirror antenna left\right circular map Mechanical characteristics Weight, g 300 Overall dimensions, m 0, 145x0,145x0, 154 Connector SMA-male on flexible cable Irradiator material galvanized steel Protective coating powdered polymer paint Material of the protective box ABS+Polycarbonate
  11. In telecommunications, a collinear antenna array is an array of dipole antennas mounted in such a manner that the corresponding elements of each antenna are parallel and collinear, that is they are located along a common line or axis. Collinear arrays of dipoles are high gain omnidirectional antennas. A dipole has an omnidirectional radiation pattern when in free space and not influenced by any other conductors in that it radiates equal radio power in all azimuthal directions perpendicular to the antenna, with the signal strength dropping to zero on the antenna axis. The purpose of stacking multiple dipoles in a vertical collinear array is to increase the power radiated in horizontal directions and reduce the power radiated into the sky or down toward the earth, where it is wasted. They radiate vertically polarized radio waves. Theoretically, when stacking idealised lossless dipole antennas in such a fashion, doubling their number will produce double the gain, with an increase of 3.01 dB. In practice, the gain realized will be below this due to imperfect radiation spread and losses.
  12. Triton_Mgn says,,, Good afternoon, give the antenna a good antenna for the 1800 MHz mimo Found 2 antennas on the forum: 1 - http://www.lan23.ru/forum/showthread.php?t=12671 But, unfortunately, not its size at the desired frequency, tell me who knows. 2 - http://www.lan23.ru/forum/showthread.php?t=10879 Could you tell me the thickness of the disc, can I use galvanized? In the drawing, the antenna of this size for the lower frequency 1747,5 pink color, and upper 1842,5 green. Why, then, in the drawing there are dimensions in blue? My answer is,, it can build a patches antenna instead of a disks, a horizontal patch antenna group (at one end of the frequency band) and the other group with vertical polarization (at the other end of the frequency band)
  13. This is an article edited by the user "com666", for which, I would like to thank them....!!! The range of mobile communications covers a wide frequency band. The bands LTE800, LTE900, LTE1800, LTE2600 are already used to transmit LTE signals in Russia. 3G signals are transmitted in the ranges wcdma900, wcdma2100. To receive mobile signals in these ranges you need broadband antennas. Among industrial designs, it is difficult to find simple and repetitive designs. Most often, antenna manufacturers use separate antennas for the low-frequency and high-frequency parts of the range to cover the entire range and combine them with a frequency-dependent combiner. This approach has many disadvantages, such as: The design of the antenna is much more complicated. The hardest thing to do is a filter adder. The area occupied by the antenna is increasing. Losses from summing ranges are growing. Examples of such antennas in the photo below. SHYAM Antenna for 900 + 1800 Dual Band Repeater: However, full coverage of all ranges of mobile communications is not provided. There is a need for a simple broadband design with the overlap of the entire range of mobile communications 800-1700 MHz. Here is an example of such an antenna: The antenna is a modernized broadband Batwing, 1945 patent. "Batwing Super-Turnstile Antenna US Patent Number: 2480153 Year: 1945 Inventor: Robert W. Masters Original Document: US Patent Number 2480153 " There is a mention of this antenna at Rothamel in the book "Antennas" The antenna sheet can be cut from a flat galvanized sheet, 0.7 mm in one pass with a laser cutter. Additionally, you need to solder or rivet the cables from the same material with a size of 34x14mm. The antenna uses two flat square screens: Lower 220x220, above 95x95. Specifications:
  14. A method to improve the gain of axial-mode helical antenna is proposed. This method involves a parasitical circular metal disk,which is installed on the front of general axial-mode helical antenna and is apart from the helical line. A circular current whose phase lags behind that of helical line current appears,which brings a more concentrated radiation field. Consequently,the antenna gain is improved, Based on the simulation results,an antenna array model fed independently is proposed.This model gives an excellent explanation of the radiation characteristic of helical antenna, Both the simulation and experiment results show that for obtaining the same gain,the antenna length in this new method is only 71% of that in traditional helical antenna.The reduction of antenna length favors the miniaturisation of antenna. In addition, this method has a little effect on the bandwidth of antenna, so it can be widely used in the design of helical antenna element and array.
  15. This MiMo antenna was made by the user "com666" and has a circular polarization(RHCP+LHCP)... According to simulation the antenna is good, but isolation between ports is not the best...!!!
  16. ,,, type of antenna,not very easy to produce , but with good results in circular polarization. Between the patch and irradiated put plate of polystyrene or polyurethane...
  17. Flat (strip, patch) antenna array (16 patches). Antenna Sarma gives up to 19 dBi, the maximum gain at frequencies of 2100 and 1800, 2400, 2600 MHz operating frequencies with a gain of 8 to 19 dBi from 800 to 2700 MHz radiation Angles vertical: 20.7 degrees, horizontal: 25.8 degrees Weight, Assembly, Size 1 kg. 300х320 mm in the package. Has a high quality presentation. Output connector F-mA, 50 ohms. Maybe order compactoffice other connectors. Reliable and hard to wind load, swivel mount, capable dolgovremennoi locking perpendicular to the radiation source. Bolting M6, M8, M8 pipe clamp for pipes up to 48 mm. closed loop, lightning protection. The use of drop cables 75 Ohm slightly alter the characteristics of the signal. When working with operators of mobile Internet, when using multi-standard equipment can simultaneously efficiently liaise at all speeds 2g, 3g, 4g (900, 1800, 2100, 2600 MHz) and CDMA 800 MHz. Supply options: 1. the maximum gain on the "2400" MHz (wi-fi, flying machines, etc.) 2. the maximum gain on the "2100" MHz +2600 +1800 (3G + 4G) 3. 2300 MHz (Wi-Max, etc.)
  18. ,,, this antenna is not very good, after resizing I got this...
  19. Increase the signal strength and performance of your wireless router or WLAN PCI card with this high gain 13dBi antenna - 2.4GHz high gain networking antenna - Frequency range: 2,4-2,483 GHz
  20. Manufacturer: Delta Satellite Model: Delta MIMO 20 LTE Band, MHz: 2500-2700 Gain factor, dB 2*20 Vertical / Horizontal polarization VSWR less than 1.5 Connector 2 n connectors (Female) Operating conditions -40 +80 protection against moisture and dust IP 54 Overall dimensions 370*370*25 Weight, kg 2.0 Additional information: Delta 4G-20 (MIMO LTE) antenna) Powerful 2x20 dB, two-polarization MIMO (vertical and horizontal polarization), directed 20°X20°, all-weather IP54 antenna on the range of 2.5-2.7 GHz 2600 LTE (Band 7, FDD 2600) is designed to work as part of modems, routers, routers, LTE-4G access points. Provides maximum connection speed and stable operation in 4G networks for Yota, MegaFon, MTS, Beeline, Tele2 operators in conditions of uncertain signal reception. The 4G MIMO antenna is connected to a modem or router via cable assemblies and allows the antenna to operate on a 4G LTE network.
  21. Connector types and sizes(SMA Series)... 2-SMA.pdf
  22. Arif4050,,, this simulation is older and I no longer have the file ... !!!
  23. The invention relates to radio engineering and can be used in microwave technology, in particular in the art of satellite television. The technical result of the claimed invention is to improve the effectiveness of the radiation reflector antennas with different opening angle by forming a different directional pattern. Due to the displacement of the dielectric tubes of the radiator is ensured by the simplicity of the design. Manufacturing method of dielectric feed for reflector antennas with circular waveguide is a circular waveguide set cylindrical irradiator, is made of at least two dielectric tubes inserted into each other with the possibility of displacement relative to each other, and the outer diameter of a smaller pick up tube equal to the inner diameter larger. One of the types of antennas in the reception of radio waves of ultrahigh frequency are mirror antenna consisting of a specular reflector and the receiver unit. The reflector is usually made of a parabolic shape, and the receiving unit is receiving the pin length of a quarter wavelength, which is installed in the waveguide. Reflected from the mirror signal is fed into a waveguide and then to the receiving pin and cable. The disadvantage of this method is that the cutoff waveguide has a radiation pattern wider than the geometric size of the antenna, and a significant part of the energy does not come in the waveguide. To correct this, at the end of the waveguide must be an irradiator that forms a directivity pattern that is optimal for a specific antenna. And here below a practical example