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jonirak
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Everything posted by jonirak
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Thank you for updating the post above with the images. I think the 186mm is the diameter of the cone base. What is the height of the cone and the outside diameter?
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Thank you. I opened the batwing rond.dxf you sent me and it looks like this on the 2nd page. The graph doesn't look very good at 1800MHz. Is it different? The diameter of the antenna in "batwing rond.dxf" is 103mm. What is the diameter of the reflector? And what is the distance, 35mm?
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Which do you think is the best for 1800MHz? I'm not expert but I asked for that because I saw a low VSWR on 1800.
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I will design the covid-20 version. What is this radius?
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Thank. I think they are different from the ones I mentioned but I might try them. The other ones I asked have dimensions so I could redesign them and build one of them.
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I want to build one antenna for 1800MHz. I will use power tools to cut 0.5mm steel. I have access to 3d printer and a small cnc but not laser cut so I want a simple design to cut all the parts and weld them together. Is this with the wings reflector the best? This one with the simple reflector and the m3 screws looks good on 1800 and simple to make. Also this with the bucket reflector looks good and not so difficult to build. Should I build the bucket with the exact dimensions or it doesn’t matter? Which one would you suggest? I cannot open cst files. Can you share dxf for the 3 antennas above?
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I know it's old post but could I have the dimensions in a sketch file? I'd like to copy it using a double side pcb like the original. What other designs would you suggest for 4G 1800MHz to build easily using pcb, copper wire or sheet metal? I have build this for 1800MHz and it's decent but I'm looking for a better one.
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What about the 75 Ohm cables+connector? I don't know about antennas so I don't know if I can use 75Ohm with the Huawei modem. Can I use any type (50/75) with any modem?
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I wan to build an antenna 1800MHz for a Huawei E5372. I have ordered TS-9 to F female connectors. Is it possible to use 75 Ohm cable+connector to use them on my modem or it supports only 50 Ohm? I would prefer a disk yagi because it's much easier to build with galvanized sheet. Should I isolate the driven element? Are these dimensions correct?