residential/smb internet access in 2019 - help?

Wed Mar 27 21:18:02 UTC 2019

Wisp here.

Our subscribers can get 100mbps bi directional. 

But we also know what we are doing. 

Technology is getting better, so speeds are getting better.   

> On Mar 27, 2019, at 4:04 PM, Bryan Fields <Bryan at bryanfields.net> wrote:
> 
>> On 3/27/19 3:30 PM, TJ Trout wrote:
>> You are way out of line, and grouping a whole industry into your experience
>> with (probably) one hack
> 
> I don't think I'm out of line, I'm relating what I've seen time and time
> again.  Most WISP's are poorly capitalized and have to run extremely lean.
> Most WISP's cannot afford to employ experienced engineering staff.  This
> causes problems in any company, let alone one where a lightning strike can
> take out an entire tower of equipment. Couple this with a lack of RF savvy
> engineering and failures are inevitable.
> 
> Looking at the website of http://pcguys.us/services.html, one can see the
> highest service offered is "5.0Mbps" and pricing is 89.99/month for this
> service.  I've got 45 Mbit/s on my Tmobile LTE card, and fully unlimited is in
> the same ballpark.
> 
> Looking at the typical equipment used (64 QAM, 20 MHz channel), you're going
> to have a raw bitrate of around 80 mbit/s.  Couple this with overhead and some
> inevitable interference and an access point will have about 50 mbit's of large
> frame capacity.  This is not much, and every client added will slightly reduce
> this due to multicast and supervisory signaling losses.  Each system is going
> to be Time Division Duplex (using the same channel for transmit and receive),
> so you will split this say 75/25 down/up stream.  This means you have at best
> 37.5 Mbit/s available for all clients to share, which isn't much for a 90 or
> 120 degree sector out to 10 miles (or more) depending on density.
> 
> 802.16 WIMAX had several things to address these issues, but it's dead and
> slow.  In the US (as this is NANOG), few operators had the 3.65 GHz licenses
> for true wimax, and CBRS is eclipsing these licensed operators shortly.
> 
> Wireless has it's place, but Point-to-Multi-Point broadband on 5 GHz is not it.
> 
> -- 
> Bryan Fields
> 
> 727-409-1194 - Voice
> http://bryanfields.net