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Everything posted by Admin
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,,,mitiche...please tell me how you posted the images above...!!!???
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Antenna BDM-2 is designed for outdoor use, although often applied in residential/non-residential premises. Experts recommend the use of antenna BDM-2, as a client equipment in all cases, build wireless networks of small and medium-range. The original of the antenna is with a 64mm diameter cylindrical vibrator
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Waveguide slot antennas are a type of microwave antenna that use a hollow metal tube, called a waveguide, to transmit and receive electromagnetic waves. They have slots cut along the length of the waveguide, which act as radiating elements. Waveguide slot antennas have some advantages over other types of antennas, such as high efficiency, low loss, and wide bandwidth. Single Sided 8 Slots Waweguide...41x20x360mm....
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Antenna for digital TV is no different from antennas for analog TV. choose from a large Ku. Specify which channels are broadcasting UHF. the antenna should cover the range(500-800MHz). This is a realization of VodkaMan friend. Some improvements for this type af patch antenna UHF: Mounting studs M6 with nuts and washers. Line powering with ramps instead of fillets (I think smarter). Reflector rectangular 340mmx290mm, the distance between studs 120mm. Patch - 208mmx208mm truncated cylinder 214mm installed at a height of 65 mm (the gap). Director - 173.6 mm in diameter, at a height of 95.5 mm from the reflector (the gap). Material - galvanized 0.5 mm.
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,,,length=multiples of 58.45 mm...!!!
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,,,preferably RG-316...
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,,,hi buddy...!!! The isolation between the two ports in this case is not very good....
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,,,much like an omni-batwing antenna would behave... ,,,,but be aware that the sizes are different...!!!!
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(DTA)Double Triangular Antenna is one of the best zig-zag antenna. Her canvas in contrast to the previously discussed antenna differs in that instead of two rhombuses consists of two triangular frames. The antenna pattern in the horizontal plane with no reflector is an eight The input impedance of the antenna in the receive frequency range depends on the antenna dimensions and its forms, from the placement of terminals to which is connected a coaxial cable or other transmission train, and also the location in close proximity to antennas of different construction which influence the distribution of electromagnetic field in space. In this case, the antenna is in good agreement with the coaxial cable is 75-Ohm characteristic impedance without other adaptation This antenna is made by "com666" user.
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By the way, the reception of both " circular "polarization and" linear " can be conducted on ONE converter..... How....???? I'll tell you about it ..... in the meantime, take a close look at the "inside" of the circular converter. You can see the DIELECTRIC PLATE there, at a 45 degree angle...???? That's the key...,,,,, that is, capable of receiving both linearly polarized signals and circularly polarized signals..... ,,,and the dimension are...
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Antenna-Bank (bandanna, banctenn, eng. cantenna) — name directional antennas-waveguide, made at home from tin cans. Typically used to extend the range of wireless devices. This cantenna, presents some changes as it would be 1) plate vibrator 2) adding a directing element 3) attaching a cone to the cylinder You can also use the simple vibrator....
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,,,something like that...)))
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The KP15-750/2900 broadband (multi-band) directional panel antenna with a gain of 15 dBi is recommended for use with 3G/4G/YOTA modems, Wi-Fi routers, GSM 900/GSM 1800/3G/4G cellular communication amplifiers (repeaters), and other equipment operating in the 750-2900 MHz frequency range (radio communication systems, GSM alarms, etc.). The antenna is designed to work in wireless communication networks with equipment of the following standards: 2G (EDGE, GPRS on GSM 900 and GSM 1800 frequencies); 3G (UMTS 900, UMTS 2100); 4G (LTE 800, LTE 1800, LTE 2100, LTE 2300, LTE 2600), YOTA; WI-FI 2400 (IEEE 802.11b, g, n). Dimensions, weight, and quantity of the product in the package: Dimensions of individual packaging (length, width, height), mm 250 x 250 x 100 Weight in individual packaging, grams 1400 Antennas-characteristics : Operating frequency range, MHz 790-960 ,1700-2700 Antenna gain, dBi 8-15 VSWR in the operating frequency range, no more than 1.6 Polarisation Vertical Wave resistance, Ohms 50 (N connector) -75 (F connector) Maximum input power, W 10 Connector N- female F- female Allowable wind load, m/s 30 Operating temperature range, oC -40 ... +90 Maximum permissible air humidity, % 100 Communication Standard -Multi-band
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Professional panel antenna for modems and routers that support MIMO 4x4 technology. F=1700-4200MHz, CU=9dBi, 4 x N-female connectors, vertical+horizontal polarization, decoupling between channels of more than 25dB. Electrical characteristics of the PETRA-9 MIMO 4x4 antenna Operating frequency range, MHz 1700÷2700 Gain factor, dBi 8,5÷10 Bottom width in the H-plane, deg 59÷82 Bottom width in the E-plane, deg 35÷57 Side lobe level, max -7 dB Decoupling between ports in the operating range, not less than 25 dB Input impedance, Ohms 50 SWR in the operating frequency range at the inputs, max. 1,6 Permissible power, W 10 Slope of polarization of received / emitted waves -45°/+45°(X-pol) Mechanical characteristics Antenna weight, g 820 Bracing mast diameter 20-52mm Operating temperature range -60°C to +80°C Overall dimensions without mounting, m 0, 24x0, 24x0, 1 Permissible wind speed, m / sec 25 Connectors 4 x N-fe male Material of the protective cover Polycarbonate Antenna Material Galvanized steel, brass Mounting material steel / Polycarbonate+ABS
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I don't understand anything anymore, I'm in a different location and I can't see some previous posts and some pictures ...like this....
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This adaptation doesn't work very well...
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The KP20-5500 antenna is used in 4900-6100 MHz transceiver systems. The antenna is designed for use in wireless computer networks of Wi-Fi standards IEEE 802.11 a/h/n, as well as in alarm systems, radio communication, etc. Dimensions (length, width, height), mm 200 x 200 x 120 Dimensions, weight, and quantity of the product in the package: Dimensions of individual packaging (length, width, height), mm 215 x 215 x 90 Weight in individual packaging, grams 1050 Number of products in a group package, pcs 12 Antennas-characteristics : Operating frequency range, MHz 4900-6100 Antenna gain, dBi 20 VSWR in the operating frequency range, not more than 1.6 Polarisation Linear Wave resistance, Ohms 50 Maximum input power, W 50 Connector N- female SMA-female Allowable wind load, m/s 30 Operating temperature range, oC -50 … +90 Maximum permissible air humidity, % 100 Communication Standard WiFi 5GHz Mounting type on the pipe Execution type Panel version MIMO Support No ,,,and I still tried to simulate this antenna....!!!!
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Clanon, can you show me this details...
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This page details the construction of a biquad antenna. The biquad antenna is easy to build, and provides a reliable 11dBi gain, with a fairly wide beamwidth. an antenna geometry of ideal biquad...
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Bottom of a circular metal box can build a simple antenna with an elliptical radiator...
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Is a Russian patch-antenna for its positioning in the focus of a parabola offset... Antenna is broadband (2.3-2.7GHz) Bester Antenna on the offset dish It has a elliptical polarization antenna.
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"I don't think I have this file anymore...!!! Maybe only if I bring this topic up again.
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It was interesting to design a small and lightweight antenna from available materials for FPV. After looking at what is available in household stores, I decided to stop at zinc/brass for the antenna elements and a canister cover as a radom. And so everything is in order - as it seemed to me, a lid from paint cans / mounting foam / air fresheners is perfect for radom. Its diameter is 77 mm external and 84 mm internal. Height from 12 to 40 mm. Material-polypropylene. Based on this, the dimensions of the entire structure were selected. you will need brass / galvanized 0.25 mm thick, brass tube diameter 4 mm external (wall thickness 0.25 mm), screw m3 -40 mm. cap nut m3, SMA connector, pipe cutter, metal scissors, drills with a diameter of 1.4 and 3 mm. The reflector is made of sardine cans. General view of the structure and results:
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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)
