XPost: alt.home.repair, sci.electronics.repair   
   From: _arlen.george@halder.edu   
      
   On Thu, 17 Oct 2019 21:20:27 -0400, Paul wrote:   
      
   > The IEEE articles on the South American distance records,   
   > they do it between two mountain-tops. And the distance   
   > is several hundred kilometers. (The protocol timer needs   
   > to be modified to get any datarate with that setup, and   
   > the datarate isn't exactly high.)   
   >   
   > And these efforts are more "hiking trials" than fancy tech.   
   > If there's a mountain with a road to the top, so much the better.   
   > The topography is the enabler. And aiming the dish is more   
   > than half the fun. Not many home users will have two   
   > conveniently placed mountain-tops, to get over the trees.   
      
   Hi Paul,   
      
   In summary, all pjp needs is to be able to "see" each antenna.   
      
   I agree you can go pretty far line of sight, as you just shared with us,   
   where I happen to live on a mountain surrounding Silicon Valley, where I   
   can likely see for more than 20, maybe 30 or more miles in some directions,   
   but only five or ten miles in others.   
      
   At WiFi frequencies, the distance pjp can attain will depend on how "clear"   
   his line of sight path is from the home to the RV.   
      
   If he can "see" the antenna, then, in our experience, the obstructions in   
   the Fresnel Zone aren't going to kill his signal, as long as he chooses a   
   powerful enough setup.   
      
   In the clear, I doubt there is a single Ubiquiti CPE radio that wouldn't   
   treat 1 kilometer as child's play though. A kilometer is nothing for WiFi.   
      
   What pjp needs, mainly, is simply the following:   
   a. A radio at his house that can see the radio at his RV.   
   b. A radio at his RV that can see the radio at the house.   
      
   I didn't think of this, until you brought up distances, but pjp doesn't   
   really even need AC power at the RV since these radios are about as   
   flexible as anything on this planet when it comes to power supplies.   
      
   They're usually able to handle from about 12 VDC to about 24 VDC at about 1   
   amp to 2 amps peak, which, if pjp only wants the radio working when he's   
   literally sitting in the RV, he can do by mooching off the RV battery.   
      
   I haven't ever needed to do that; but it sure seems possible (and, if not,   
   one of the folks on this ng will be glad to ream me with facts).   
      
   The main requirement pjp needs is each radio has to each the other.   
   o The radios are about $100 (give or take) depending on the radio   
      
   For example:    
   o Bullet    
        
   o LiteBeam    
        
   o NanoBeam    
        
   o PowerBeam    
        
   etc.   
      
   I've never used them, but maybe these "nanostation" pairs would work:   
      
      
   They're designed to mount with "no tools" (or so they say).   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)