MikroTik

Can anybody tell me about the board and mini PCI combination for 20Km, 40Km and 65km PTP links respectively.
and troughput should be 10Mb, 8Mb and 6Mb respectively.
I had used 433AH with XR5 card with 35 dbi Parabolic solid dish antenna in 65Km link and strangly my guys failed in that link. I know some tracking issues were there but when we left that link again on RADWIN radio's also this link is not working. Don't know the exact reason, but a big river is there between this link, can the river create some problem?
Help me this link has caused us a lot.

(Rb433AH + R5H card)x2 should be a good combination for any of those links. I'll let others comment about antennas and stuff

wht is the height of the mast at both ends for the 65 km link.

wht is the height of the mast at both ends for the 65 km link.

Height is not an issue, more than sufficient height is there.

wht is the height of the mast at both ends for the 65 km link.

Height is not an issue, more than sufficient height is there.

If you want our help, you need to answer our questions.

Are you sure you have LOS? How did you confirm it?

hav u trried replacing antenna and pigtails, my suggestion is that u shd 1st give a try using XR2 card both sides.(2.4 GHZ just give a try for troubleshooting,) and if still u dont connect u shd install one section(3 meter) of mast each side..i m sure u will win it.. keep updating us.

(Rb433AH + R5H card)x2 should be a good combination for any of those links. I'll let others comment about antennas and stuff

Normis: I had used 433 with SR5 card, but it was not giving proper throughput and on the same link when I had used 133 with R52 350, it is running excellent
Cards wise SR5 is better than R52 350 and 133 is succedded by 433, so why it is not working, I dont know.
Please tell me the reason and best card configurations with 433 and 433AH so that I can run long links without any fear.

it doesn't matter so much which of the mentioned card you use, they are all good. The only differences could be improper installation or defective card. R5H should be very good actually

with those 35dbi dishes, alignment, alignment, alignment ........

water do absorbed and reflect signals,
with your ~75m height and los, use Hpol.

water do absorbed and reflect signals,
with your ~75m height and los, use Hpol.

Also can heavy dust create some interference?
Actually a chimney is there and continuous fire and dust comes from it and it is approximately 50m from our signal route, so can it create some interference?
Urgent