From: malQassRimiMlation@gmail.com   
      
   On Thu, Oct 22, 2020 at 09:43:21AM -0400, Fred Goldstein wrote:   
      
   > This does lead to a push to use more private microwave solutions.   
   > We've replaced Verizon repeater backhauls with a mix of licensed and   
   > unlicensed microwave here. You'd be amazed what you can do unli-   
   > censed if you know what you're doing, though you really do have to   
   > know what you're doing or at least run it by someone who does, since   
   > some vendors will happily sell you a bill of goods. And unlicensed   
   > links need maintenance to check that they're not being clobbered by   
   > interference -- you may sometimes want to change frequency,   
   > especially on the popular 5 GHz band.   
      
   Is interference a common problem? Can low-beamwidth antennas help?   
      
   > The Wireless ISP industry has come a long way in 20 years. Its   
   > vendors have gone through multiple generations (not the same as   
   > mobile G's!) of technology. Fixed outdoor (WISP) gear is not the   
   > same as fixed indoor (WLAN, like Wi-Fi) or mobile. It's a category   
   > of its own. The biggest unlicensed-band equipment vendors in the US   
   > market are probably Cambium Networks (spun out of Motorola almost a   
   > decade ago), Ubiquiti, and Mimosa. MikroTik is a major radio-gear   
   > player in, uh, developing countries, but mainly a major router and   
   > switch player in the US.   
      
   Which vendor do you recommend for short (1-3 miles) and for longer   
   routes? How are the prices? How much time and effort goes into aiming   
   the dishes?   
      
   > Point to point and point to multipoint are different too -- with   
   > PtP, both ends have a highly directional antenna, while PtMP   
   > typically pairs a highly directional client radio with a sector. On   
   > 5 GHz, power limits for PtP use are highest, so you can easily shoot   
   > 10 miles with a pair of 2-foot dishes, if you have line of sight. If   
   > there's clutter (trees or buildings) in the way, though, all bets   
   > are off -- 5 GHz gets through a little bit of wood but not a lot. I   
   > do blast it through clutter on some short links though.   
      
   There used to be a couple of sites that would let me lookup the Tower   
   Height needed for a given route, without charge: do they still exist?   
      
   Thanks for the info: there's always another way to get it done, but   
   knowing how and who makes all the difference.   
      
   Bill   
      
   --   
   Bill Horne   
   (Remove QRM from my email address to write to me directly)   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)