We're considering using nstream2 for a PTP backhaul. Current requirement is that it be able to do 10 M bps full duplex, but it is likely going to have to go a bit higher than that (possible up to 25 M bps or so).

Currently the link is on a Trango T-link-10, which has been working flawlessly for over 3 years. Unfortunately, the T-link is half-dux, and we are getting close to the maximum throughput on the beast.

The good news is that we put up the T-link with a pair of 3 foot, dual-polarity dishes from Radio Waves. I'm thinking that it might just be possible to slip in a pair of MT boxes with nstream2, run horizontal at 5.8 GHz, and vertical at 5.2 GHz.

Has anybody tried this? Or do we need more separation than the V-pol/H-pol and band separation will provide?

I have seen Grid's with both horizontal and vertical feeds built into the same antenna.

Apparently they work really well. As 5.8GHz channels doesn't overlap as badly as 2.4GHz, I don't see why it would not work.

I would say one of the more important aspects to consider, is your router's CPU.

We ended up putting in a 2' (60 cm) dish with a dual polarity feed (from mWave). Operating on 5.7 H-pol, and 5.2 V-pol.

Seems to be working fine. We get about -65 db both ways, and generally run at 54 Mbps radio speed both ways. Our speed tests show fairly consistent 20+ Mbps both ways, full dux. This is on a pair of RB133's.

We did turn off connection tracking and filtering. This helped a bunch in the throughput department, and the CPUs are running 3-5 percent busy now with a half-dozen subscribers. We're pushing less than 3 GB of data per day.

We ended up putting in a 2' (60 cm) dish with a dual polarity feed (from mWave). Operating on 5.7 H-pol, and 5.2 V-pol.

Seems to be working fine. We get about -65 db both ways, and generally run at 54 Mbps radio speed both ways. Our speed tests show fairly consistent 20+ Mbps both ways, full dux. This is on a pair of RB133's.

We did turn off connection tracking and filtering. This helped a bunch in the throughput department, and the CPUs are running 3-5 percent busy now with a half-dozen subscribers. We're pushing less than 3 GB of data per day.

Are you using 1 RB133 on each side? When doing +-20Mbps, what are your CPU's doing?

What do you mean with you disabled filtering? Are you referring to Wireless security such as MAC Filtering or WEP?

you are not doing full duplex 20mbit on a 133, with nstreme...

way too much CPU for a 133.

please clarify.

thanks

K'mon 20+ Mbps full duplex !!!!! on RB133's !!!! You got to be kidding us.

That is impossible as far as I know, read and according to the test I have already made... even RB532A w/400Mhz will be on its knees with that amount of data passing through it.

Please explain.... How are your CPU's at that speed? ... 3-5 percent busy know whit what? 100kbps?

Please explain, thks.

Jorge Boardman