INDOOR WITHOUT LINE OF SIGHT

HELLO ALL.

I HAVE THIS SCENARIO, 2 OFFICES WITH OUT WINDOWS IN THE SAME BUILDING AND IN THE SAME FLOOR WITH OFFICES BETWEEN THEM AND 20MTS OF DISTANCE.

THE BETTER SOLUTION IS USIING CABLE, BUT I MUST NOT USE THAT.

I HAVE BEEN TRYING WITH RB433 AND SR2 IN BOTH SIDES, I GOT 3.5mbps/2.4mbps IN BANDWIDHT TEST

My customer needs 15-20mbps max, can i get thiss??? if I its possible, how ???

Im thinking about 900mhz.

Help.

Regards.

RB433 on both sides? what kind of antennas do you use? what kind of material are walls made of? did you run Bandwidth test from RB to RB directly? In this case speed will show as slower, because resources are needed to run the test. You need to test some actual file transfer

Hi Normis.

Is an old building, the walls are of concrete some of them has 18cm and other 40cm.
In the branch are 10pc and 5 VoIp.

I have been using the Omni Swivel antenna, that was my first proof.

I was thinking about 900Mhz but is more expensive that 2.4.

Could you give me an advice about what kind of equipment is the best solution???

Thanks.