Yeah we get higher throughput w T-mo as well, on bands 4+2 4x4 = 60Mb p/s vs 4+2+5 2x2 =55Mb p/s. I even found and authenticated band 4/66 on AT&T, MFBI too. I have had so much trouble just connecting to it, let alone getting 15Mb p/s down. rsrp is like -120, but SNR is -14. EARFCN's 66486 @10MHz and 66661 @5MHz checking in with 4x4 MIMO.
This is a dream.
4x4 MIMO is fun! / How we learn to cope w (signal)Loss.
Tl;dr: Physically measuring each connection as you test to confirm is important. Double checking port number values and what command line values represent. This is one of the early things to add to the checkbox for us tinkerers as 4x4 becomes more accessible.
While cleaning up in the lab, I thought of something and naturally stopped to do some more work in the lab. I figured I should clean up the wiring a little more in my test box, and make room for another board, hopefully the rb11g, failover and such. I inventoried a few jumpers and connectors and found I could be a little more efficient in my setup. I added in some sma>3'>N adapters, instead of a couple more adapters I had screwed in already that kept it shorter. I am going to use those any way when I permamount this thing and add better auxiliary antennas for 4x4 MIMO, than what I have attached now.
I decided to double check my understanding of the documentation Telit provides for the LM960. Well after some reading, some at#commands as swapped 2 for 2, deciding what 0 and 1 ports on what side correlate to the first two and the last two of the 4x4 setup it, turned out I had my setup wired exactly backwards. Very inefficient, not good. I no longer have loss on my upload and is now 7x faster. I am surprised at how well my backups pulled down. I understand how useless a couple of commands were in describing what I needed.
It is even more tough when using one band that is always 4x4, but I used that to my advantage as only mains Tx and Rx. I connected and tested each variation of antenna>port. Naturally my 5 footer was best, it just had to be on the mains. Wanted to document my misunderstanding so others didn't have to, especially before it goes on a roof or up a pole. I also am much happier with performance, glad my antenna is not defective and it was fun to figure it out. Gotta sweep up. Have a great night everyone.
I’ll ask the tread. I guess as band 26 is still being optimized could there be issues on the network? My data on the I phone xs max keeps timing out in the middle of loading stuff I’ll pull 80mbps and then next second it won’t work anymore and I have to toggle airplan mode for it to work again. I had this phone replace once already. Sent from my iPhone using Tapatalk