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Feb 22, 2021 at 14:32 vote accept Matthew
Feb 22, 2021 at 14:19 comment added SteveSh Just watched that video and came away with more questions than answers. First of is what is the "percentage" things he's talking about when connecting to the access points? Is that suppose to be a surrogate for signal strength?
Feb 22, 2021 at 13:28 comment added Russell McMahon Note warning in video at 8 minutes - the driven element needs to be ISOLATED from the main "boom". But it's still not very good.
Feb 22, 2021 at 13:25 comment added Russell McMahon Here is a video analysis of that aerial. Conclusion: Not marvellous.
Feb 22, 2021 at 13:19 answer added jwh20 timeline score: 3
Feb 22, 2021 at 13:18 comment added Russell McMahon Search on "maximum power transfer theorem" wrt impedance matching.
Feb 22, 2021 at 13:15 comment added Russell McMahon This site looks to be what you want. This specific antenna is questioned by a commenter. The site will have much more on it.
Feb 22, 2021 at 13:12 comment added Russell McMahon This May be good - have only had a quick look
Feb 22, 2021 at 13:10 comment added Russell McMahon Many of these look more liable to be useful.
Feb 22, 2021 at 13:00 comment added Bimpelrekkie Here are some channels with REAL information on RF: youtube.com/channel/UC1TtnT24NS1v12Si2qstYZA youtube.com/channel/UCKxRARSpahF1Mt-2vbPug-g youtube.com/channel/UCiqd3GLTluk2s_IBt7p_LjA You might want to ask one of these YouTubers what they think of KREOSAN's video. Did you also notice how, in the comments on KREOSAN's video, there is NO ONE writing how they successfully build a similar antenna. Hmmm...
Feb 22, 2021 at 12:54 comment added Bimpelrekkie In my opinion, that video is a bunch of nonsense. He's using RG6U cable: youtu.be/zKcz6rEXamc?t=183 which is 75 ohms Coax cable for TV up to 1 GHz. He uses such a large length of cable: youtu.be/zKcz6rEXamc?t=276 , the attenuation of such a long and cheap RG6U will be more than what his "antenna" can gain. Also the size of his antenna is too small to be able to work properly below 1 GHz while his cable has lots of attenuation above 1 GHz. This video is a JOKE and made as click-bait to generate views. Educate yourself on RF and you will know I'm right.
Feb 22, 2021 at 10:47 comment added Matthew I already know the different frequency band in 4G and 3G networks , i already know to how to calculate the length per parts of a yagi-uda antenna i am planning to make a disk SO INSTEAD OF LENGTH I WILL MAKE IT A DIAMETER . I already know the different applications to measure signal strength, im sorry for the lack of enough informtion the design is inspired by a youtube video here is the link: link @ Bimpelrekkie I am willing to study, i am a grade 12 student i don't take any course yet. I hope you understand
Feb 22, 2021 at 10:38 history edited JRE CC BY-SA 4.0
added 2 characters in body; edited title
Feb 22, 2021 at 10:32 comment added Bimpelrekkie If you have to ask about impedance matching then you REALLY lack the skills to make this a success. Impedance matching is so basic, you should know this already. Do you know what power matching is? In my opinion: find a proven to work antenna design and re-build that. Designing your own is really a couple of bridges too far for anyone who doesn't have a background in antenna design.
Feb 22, 2021 at 10:31 history edited JRE CC BY-SA 4.0
deleted 1 character in body
Feb 22, 2021 at 10:30 comment added Bimpelrekkie i dont have any background information regarding AntennasThen educate yourself first because is it pointless to build/design your own antenna "blindly" (not knowing what/how) because the antenna will not work or only very poorly. it is for 4G and 3G mobile network any tips? 3G or 4G is irrelevant, look on Wikipedia what frequencies the 3G and 4G standards support: a lot! To make an antenna work properly you need to know what frequency band you're going to use it for.
Feb 22, 2021 at 10:30 comment added Finbarr 3G and 4G aren't frequencies, they're protocols that work across a whole range of different frequency bands.
Feb 22, 2021 at 10:29 history edited Transistor CC BY-SA 4.0
Clean-up.
Feb 22, 2021 at 10:21 review First posts
Feb 22, 2021 at 15:02
Feb 22, 2021 at 10:17 history asked Matthew CC BY-SA 4.0