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 <br...@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