R52H problem

Hardware MikroTik hardware general
1

Hi,

I have some difficulties with R52H signal strenght. RB433AH work with R52H and R5SHPn (pictures below)… both in AP bridge mode with some clients registered on it. (hardware is placed in ITELITE SRA 50016 dual H&V sector antenna - dual polarization). In the beginning (when I activate sector) everything work just fine (signal strenght on R52H is ok… app 53/57 per client) , but 24-36 (more or less) hours later signal strenght fall (shown on picture below). I’v already have 3 similar cases in 2 days (same hardware configuration)

…any solution?
signal.png
060420121243.jpg
060420121241.jpg

2

Do you have another card to try to see if maybe the card is going bad?

3

I have tried to replace it… but after 24-36 h same problem… (I have similar hardware configuration at 3 diferent locations)… they all have problem

4

F5 ?

5

You might have some VSWR issues.
There’s a nice presentation of my friend Ahmad about wireless troubleshooting from last Europe MUM
http://mum.mikrotik.com/presentations/PL12/ahmad.pdf
Give it a look!

6

Did you ever figure this one out?

I am thinking heat related.

7

if you replace card and problem continue check routerboard or adpater wich voltage you have in adapter?

8

I have the same problem.

I have ensured that the power is good to the unit so power is not dipping. I have also replaced them with several cards and had the same problems.
I replaced them with a different manufacturer and all is 100%

We have +/- 12 cards and the communications I had to move back to the other cards as they are more stable and reliable.
Currently we have 0 installed they are gathering dust.

E