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Admin
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Everything posted by Admin
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The external antennas can be connected using the coaxial cable as below....
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,,,hi buddy...!!! ,,, good achievement ... !!! In your cst simulation, the polystyrene spacer is missing...??
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2 + 2 antennas 2-Supports LTE FDD Band 3/7 (1800/2600 MHz) and TDD LTE Band 38 (2600 MHz 2= Supports 3G UMTS 900/2100 MHz ,,,, external antennas with Pigtail cable can be attached in the "P" points
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These files can help you...???!!! 5,8ghz.dxf 5,8ghz.gbr 5,8ghz.gds
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,,,hi buddy...!!! ,,, I think it's possible, I didn't really work with 4nec2, try it anyway .. !!! ,,, from here you can choose a calculator for the helix antenna....https://yandex.ru/search/?text=helix antenna calculator&clid=2270485&banerid=6302000000%3A5e8ad2bd534fbf00271b3d7b&win=383&from=ntp&lr=105372
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,,,hi buddy...!!! ,,,download this and install it...!!! https://play.google.com/store/apps/details?id=com.radioacoustick.cantennator
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,,, show me what your real installation looks like...!!!
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.... this is how a USB connector of ALFA modem is connected to a CAT5 cable...
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,,,hi bro..!!! ,,, how did you connect the antenna to the usb adapter (what type it is ... ???))...!!!!
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,,,hi buddy...!!! ,,, what do you think of this ... ??? ,,, would you like to build it...??? PCB diameter = 50mm
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,,,hi buddy...!!! I designed this antenna(,,,and on PCB,,,!!!) many years ago on a Spanish site that was closed, zero13wireless.com ,,, if I remember correctly, it was like that...!!!
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,,,hi buddy...!!! ,,, yes, but anyway you did not rotate the antennas by 45 degrees as I showed you...!!!
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Covid-19 ,,, if the angle of 90 degrees is increased , a good uniformity of the frequency bandwidth and impedance of Batwing-Antenna can be obtained... angle=100 degrees ,,,Covid 19-1 angle=111,5 degrees
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Different forms of dipole.. ,,, and a simulation of one of them...
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,,,named Covid-19,,, after a moment of inspiration, I managed to configure a new Batwing type antenna that provides a wide frequency band and a VSWR factor <1.5... The antenna is made of round cut galvanized sheet, cut triangularly and rounded corners..
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,,, something like that ... !!!
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,, you're not interested in the Batwing antenna ... ?? ,,, or so it may be...
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,,,, hey man, I only posted this as a price comparison...!!!
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,,, it's not a bit expensive compared to this one...???
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Antennas work and perform their functions, there is a noticeable difference in price, although it should probably be the other way around ! Do not forget that for confident reception of DVB-T2 at a significant distance (60-70 km )from the signal source, it is necessary to raise the antenna from the ground by 12-15 meters, a strong mast + MANDATORY GROUNDING + side lightning protection. Source DVB-T2 Ostankino 10kW — distance 20 km conditionally direct visibility of the floor 12.
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,, and how much does cost the SWR meter from Owl-RC ...???
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,,,ok,thanks,,,!!! ,,, and SWR-meter can be DIY...???
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,,, good job buddy, congratulations...!!!! ,,, please tell me, at what maximum distance can you pilot this drone .. !!!! ,,, and if the SWR meter is built by you...???
