Link with 20 Mbps in mode "both"

Hello Friends:
Look, I have a link of 140 Km with RB 433 and XR5. It is with -77 dBm and N-streme dual. It go good. The problem is I have 15 Mbps in Tx and 15 Mbps in Rx. Then, when I set the bandwidth test in “both” it is at 6 Mbps.
The real problem is I have a new client that wants 10 Mbps in mode “both”.

Do you knows how to increase the transmission speed??.

Thanks. Any ideas will be helpful. success!!!

you have nstreme dual with 2 xr5 cards? separate antennas or dual polarity?

Hello:
I am using N-streme dual with two separate antenas.
purpose. Although not the topic, but how to do N-strem dual polarity?

Thanks for the fast answer.

i wonder if you just use single nstreme with a single antenna, using turbo mode, if you will get better performance (less interference). When I use dual nstreme2 i get about 15mbps, when i use a single antenna / polarity, i get 45mbps.

Thanks Changeip:
Now, I am using N-streme Dual that needs two antenas each one with a miniPCI, because this configuration needs wlan 1 and wlan 2.

The configuration that you say, I never see. Please pass me the configuration for probe it.

One question more: I am using simple antenas with a single connector N type. Does your configuration need other type of antenna?

Thanks again…