tag:blogger.com,1999:blog-1592992209402300549.post7752374735266502634..comments2024-03-28T08:06:43.198-04:00Comments on The Silicon Graybeard: Early 5G Deployments Aren't Looking Much Like 5GSiGraybeardhttp://www.blogger.com/profile/00280583031339062059noreply@blogger.comBlogger6125tag:blogger.com,1999:blog-1592992209402300549.post-17300078133563283222020-01-12T14:03:54.402-05:002020-01-12T14:03:54.402-05:00Since I've never heard of these issues and the...Since I've never heard of these issues and the first few pages of search engine returns don't show anything, do you have any references? SiGraybeardhttps://www.blogger.com/profile/00280583031339062059noreply@blogger.comtag:blogger.com,1999:blog-1592992209402300549.post-23188877562563855132020-01-12T09:47:43.181-05:002020-01-12T09:47:43.181-05:00Don't forget about the passive inter modulatio...Don't forget about the passive inter modulation with where those frequencies are at. Funny how doppler radar has become unreliable in areas that have 5g.<br /> Tsquarednoreply@blogger.comtag:blogger.com,1999:blog-1592992209402300549.post-71390274956950691292020-01-11T16:01:42.034-05:002020-01-11T16:01:42.034-05:00I worked on "things" in various MM wave ...I worked on "things" in various MM wave bands for Hughes when it was <i>really</i> hard to get any appreciable amount of power at those frequencies.<br /><br />Weird stuff starts to happen propagation-wise when you get up around 25 GHz. Things you would expect to reflect the RF start acting like they absorb it, and things that are supposed to absorb the RF start acting like reflectors.<br /><br />And there's absolutely no way to model these things.<br /><br />Reminds of the old microwave joke: "Microwaves - Where amplifiers oscillate, and oscillators won't."drjimhttps://www.blogger.com/profile/05647484115197408897noreply@blogger.comtag:blogger.com,1999:blog-1592992209402300549.post-77422671554594791942020-01-11T12:02:55.357-05:002020-01-11T12:02:55.357-05:00Thanks. Part 2 is the one I used as my source.
...Thanks. Part 2 is the one I used as my source. <br /><br />I find the challenges of doing 24 GHz networks interesting, both from the technical aspects and that mm wave radios draw the ire and fear of people far more than they seem to justify. There have been bans on 5G in places that I'd think would love to see the technical progress. <br />SiGraybeardhttps://www.blogger.com/profile/00280583031339062059noreply@blogger.comtag:blogger.com,1999:blog-1592992209402300549.post-30595906485757911942020-01-11T03:15:30.460-05:002020-01-11T03:15:30.460-05:00It sounds like scenarios that we have all seen bef...It sounds like scenarios that we have all seen before. Nothing is as easy as it looks, everything takes longer than you think, etc. <br /><br />Thanks for the update.LLhttps://www.blogger.com/profile/05538854359365988863noreply@blogger.comtag:blogger.com,1999:blog-1592992209402300549.post-79134820217527695352020-01-11T01:03:22.327-05:002020-01-11T01:03:22.327-05:00The links are easy enough to find, and better than...The links are easy enough to find, and better than the info I've been seeing elsewhere.<br /><br /><a href="https://blog.pasternack.com/5g/updates-on-millimeter-wave-5g-part-1/" rel="nofollow">Updates on Millimeter-wave 5G (Part 1) - Pasternack Blog</a><br /><br /><a href="https://blog.pasternack.com/5g/updates-on-millimeter-wave-5g-part-2/" rel="nofollow">Updates on Millimeter-wave 5G (Part 2) - Pasternack Blog</a><br /><br />There is an old Dilbert Cartoon... <a href="https://dilbert.com/strip/1994-10-17" rel="nofollow">Dilbert Comic Strip on 1994-10-17 | Dilbert by Scott Adams</a> where the pointy-headed manager is drawing up schedules for stuff he doesn't understand. But it isn't really only about scheduling.<br /><br />And if they don't understand programing, are they going to understand RF design? ("You just put up an antenna, right?")Zendo Debhttps://www.blogger.com/profile/00094772654735415974noreply@blogger.com