Did I buy the wrong LTE Router?

RouterOS Beginner Basics
1

Hey Guys,

Been years since I’ve looked at and used RB probucts, and now have a situation where I need a decent 4G router.

I live on a farm with line of site to cell tower, 1.3KM away. Mounted on antenna mast, on 2nd story, pointing at tower, I am getting 17Mb download and 4mb upload.

There the tops of a handful of large tree between us and tower, but still results are terrible. While on the roof, I was getting 45/20 on my cell phone.

I have a basic TP link 4G router sitting in my office, on ground floor, inside that also gets 45/20

So I think I may have bought the wrong version, the vendors site I got it from is sooooo confusing and I have no idea which model I need to be honest :frowning:

RBSXTR&R11e-LTE On roof pointing at Cell Tower:
SNR: 8-12
17/4Mb

TP Link ac 1200
SNR: 20
45/20mb
Distance.png

2

Should be the correct LTE device. SNR is very low. Using the same frequencies (band) as the other router?
My experience is getting -80dBm RSRP , where the inhouse unit gets -105dBm.

3

Please see attached results:
results.JPG
Same channel, seems like different planet :frowning:

4

Is the Tik LTE connecting to 3G or 4G, turn off 3G on the device

5

While RSRP (it’s the cell’s signal strength) difference between indoor (-93 dBm) and outdoor (79 dBm) is sensible one, it’s RSRQ (signal quality) which is rather low. If it was the unrelated noise, tgen RSRQ should be lower (i.e. more negative) when RSRP gets higher. But the fact that RSRQ remains the same (assuming receivers in both devices are of same quality) indicates that interference is directional and coming from the same general direction as 4G signal. It could be self-interference (trees and other “small” obstacles on the signal path can cause signal scattering which can show as increased interference) and that us very hard to diagnose without using specialized measurement equipnent (e.g. spectral scanner capable of decoding QAM modulations and OFDM and LTE signals).

6

Maybe Maybe you get better results with another band, with lower RSRP reception level, but better RSRQ. (SXT TE kit lets you indicate allowed bands for connection)
https://www.cicra.gg/media/3104/t1020gj-information-notice-award-of-800-mhz-1800-mhz-and-2.6-ghz-spectrum-sure.pdf

7

R11e-LTE

First, upgrade the MODEM FIRMWARE

My list is like this:

  • R11e-lte6 v025 (31.03.2020)
  • R11e-lte MikroTik_CP_2.160.000_v015
  • R11e-lte-4g v9
  • R11e-lte-us v16.02.183961
  • SXT LTE 3-7 |-> chip:2.0 fw:0.1.2.4
8

… or you catch the guy who’s maintaining your local cell-tower by impeding his beer in the local pub, because you instructed the bar-crew before, to do so
… and ask him if it’s worth !?
.. or you spend then a “beer more” on him … and he’s considering a custom config for your IMEI (please have that printed on a card for such use-cases : )
.
LTE performance is like a corona-statistic … it’s customized for “use-cases”
.
you wanna be a ‘network-admin’ ? … consider you’re holding both ends of the equation !