First two value is correct but both -140 should be around -81 too./interface lte at-chat lte1 input="AT+QRSRP"
output: +QRSRP: -81,-81,-140,-140
I read that post like that:Will read the link :)
means, 2x antenna with mimo 2x2, but in specification and brochure of Quectel SoC we see "Mimo 2x2,4x2" who give us info about that 4 connectors are1. There are total 4 antenna connections for the CAT12 modem
means like we can change int/ext for both antennasand for 2 antenna connections you can change from internal to external antenna
again, means like we can change int/ext for both antennas- you can configure both antennas connectors separately (which will be external and which internal).
Tx=UL=upload is done only at main, 1st antenna.For the TX only the main (first) antenna is used - which can be configured to external.
OK1. There are total 4 antenna connections for the CAT12 modem
I don't really understand this part[*]1st antenna (2 connectors): 1 pair for DL+UL what give 2x2 as internal and external
[*]2nd antenna (2 connectors): 1 pair for DL only to create 4x2 but I think only with "internal setup" bcs with external that antenna will be not used ?! and that why you reach -140 ?? By testing only you can confirm that stuff. Remember that 2nd antenna not have pigtail to outside of chateau.
Chateau have got EG12-EA soldered at PCB and that 2nd internal antenna must be always set as internal and to use your own antenna you must unplug ipex from PCB and install own pigtail with still internal settings - because I not see at photos the empty connectors at PCB, they not should be exist. and setting the second one as external you just disable it.
Ok, I'm pretty sure you are right but you lost meThat I read this answer.
It seems that reboot is not needed anymore but I can't confirm this, at least I always set a setting and reboot and get the same result as when before rebooting.system/routerboard/modem/set main-antenna=
auto external internal
[admin@MikroTik] > system/routerboard/modem/set diversity-antenna=
auto external internal
[admin@MikroTik] > system/reboot ;
Seams like main-antenna is for DL+UL but second antenna know as diversity-antenna was always as DL antenna. And we not receive info about reboot needed but I have one person who confirm that only after reboot he see changes in signals.
Me too, trying to figure outI hope that can help you in anythink, maybe I just write obvious stuff and this is just empty post.
ThanksPS. 20 photos from inside Chateau here .
/interface lte at-chat lte1 input="AT+QRSRP" Return : +QRSRP: -81,-82,-140,-140
/interface lte at-chat lte1 input="AT+QRSRP" Return : +QRSRP: -81,-81,-82,-83
/interface lte at-chat lte1 input="AT+QRSRP" [Admin@Router-LTE12] > /interface lte at-chat lte1 input="AT+QRSRP" output: +QRSRP: -81,-82,-82,-84 OK [Admin@Router-LTE12] > /interface lte at-chat lte1 input="AT+QRSRP" output: +QRSRP: -80,-81,-82,-83 OK [Admin@Router-LTE12] > /interface lte at-chat lte1 input="AT+QRSRP" output: +QRSRP: -81,-81,-140,-140 OK
The modem supports 6 spatial streams, so it works like this:
- For 1 CA single band 4x4 mimo = 4 streams.
- For 2 CA primary band 4x4 mimo + secondary 2x2 mimo = 6 streams
- For 3 CA all 3 bands use 2x2 mimo = 6 streams
Modem uses the mimo1 and mimo2 antenna only when operating in 4x4.
The last 2 values of AT+QRSRP should return the levels of the mimo1 and mimo2 or -140 if not used.
But keep in mind that only main antenna is used for Tx and Rx the rest are only for Rx.
So 4x4 MIMO is supported only up to 2 CA for the EG12 modem.
Also 4x4 MIMO is supported only for LTE-FDD: B1/B3/B7.
You can use a MIMO antenna (that who have 2 cables) to this two SMA connectors at back and it's all.so to understand..I would like to attach my panel antenna with two SMA connector to the chateau.
do I have to attach them to ANT1 and ANT4..correct?
Set Main and Div as external. This say that two cables/connectors will be moved to power bigger antenna (external one).then, how should I configure with winbox?
Where I can configure this?Maybe I didn't connect correctly ?
This is what I have done to use both antenna and both mimo2.
The idea is to set external antenna to NONE to set CHATEAU to use all internal, except here, I did connect all internal (MAIN/DIV/MIMO) to four external connector :
This give that :
ANT1 -> MAIN_INT
ANT2 -> MIMO1
ANT3 -> MIMO2
ANT4 -> DIV_INT
Like this, setting CHATEAU to NONE, will not emit any 4G wave (the router is near me) and all 4G will use external antenna but if I'm letting only connected ANT2 and ANT3.
We can clearly see that performance are not good like no antenna connected :(
PS : Reboot done ofc :)
EDIT : Led indicate no signal and internet is very low and after few seconds, no more internet !!!
ReRead this post #10 viewtopic.php?f=13&t=162363#p800352Where I can configure this?
Ant1 can be internat or external.Guys am I reading this right - to get full potential I need to solder uFL-SMA to get extra two SMA connectors?
-140 means that is not work now, you can try download some stuff to generate traffic and check that in loop to see if it's activated.output: +QRSRP: -102,-104,-140,-140
This gives me B3 as primary band and B1+B20 as CA
This video will help you ;)Hi all.
It is quite clear to me how to connect the pigtails to the rear part of the router. What is scary for me is opening the box without destroying it. From the pics posted on the polish (mikrotikon) website, it seems that with a screwdriver (or better with two) it should be possible to unlock the front side of the box from the rear one. Can anyone confirm this?