I am planning to make a trace with 1 hop in the middle.... In fact - there are 3 points.

I am going to buy:

- 1.40m dish antennas
- RBs 433AH
- XR5 cards

1 point is 12-13 stage building in a town in lowland... maybe about 50 meters high
2 point is not very high roof in a village in a lowland... maybe 5-6-7 meters high
3 point is at the beginning of a mountain about 200m high

I want to carry about 50 Mbit/10 Mbit (down/up), do you think this is possible at 50km distance?

The link to the mountain is feasible but, i dont think any 5ghz radio can do 50Mbit thoroughput in actual sense except you use nstreme.

Of course i ll use Nstream and Turbo.... and i hope it will do 50 Mbits

I've never made a link as long as this, but on testbench (table):
RB433AH with rd52 card facing to the same device.
Without turbo: ~33 mbps tcp thruput
with turbo: ~70mbps tcp thruput

RB433AH with r52H card facing to the same,
without turbo, 10km distance
~30mbps thruput (rx level @-62dBm, ccq 100%)

so if you can make high levels (like under -65) you probably need 600mW cards for this
it could do the job.
Decreasing tx power level could also helps, so go for bigger antenna
(and you have to calculate also with freshnel!)

Can you give me link to some tool to calculate the Fresnel Zone?

On such distance - 50 km.... will be problems when rains.... on fog.... when snows? For example in huge rain?

Can you give me link to some tool to calculate the Fresnel Zone

Here you go: http://www.terabeam.com/support/calcula ... l-zone.php

However, if I were you, I would use Radio Mobile to have a more accurate calculation for that distance.

Regards,

MA

so if you can make high levels (like under -65)

Wireless links should be in the -64 to -72 range for ideal operations.