Very nice! ----- Original Message ----- From: Ken Hohhof To: [email protected] Sent: Friday, December 18, 2015 11:23 AM Subject: [AFMUG] 900 MHz 450i update with better results :-)
So yesterday I did some tweaking on the sync parameters and was able to get better results. I'll put the details in a second post, but I wanted to update the grim picture I painted the other day. As initially set up, I was only getting 1X MIMO-A, even on a 5 MHz channel and after trying a bunch of frequencies, and the SMs would not reliably stay registered. After tweaking the sync parameters and channel, I was able to get one sub to 4X MIMO-B and the other to 2X MIMO-B, and increase the channel width to 7 MHz. They have stayed registered now for 18 hours and while the speed varies a bit they hold 4X and 2X. Here are linktest results I just ran: subscriber #1 2 miles with a few bare trees and apparently some multipath issues 2X MIMO-B 8.6M down, 4.4M up, 13.0M aggregate subscriber #2 8 miles with 2 lines of trees and a house in the path 4X MIMO-B 14.6M down, 4.6M up, 19.3M aggregate The AP and subscriber #1 have bad interference across the band, interference is not as bad at subscriber #2. These numbers may not look great compared to 100M aggregate capacity, but they are around a 6 times improvement over what we had with FSK. I'm sure we would see better results at another site with less interference, in fact I have another tower where we can run 2X FSK but 4M aggregate just isn't enough capacity.
