Community discussions

MikroTik App
 
brandonros
just joined
Topic Author
Posts: 11
Joined: Sat Aug 15, 2009 9:20 am

Router to Router problem

Fri Aug 21, 2009 11:39 am

Hi,
I currently have an RB133 supplying my internet connection to an RB411, which is located, by line of sight, slightly over 5 miles away. Both locations are using 20" grid antennas, but I'm not sure on their gain. From reading online, I know these routers should easily handle 5 miles, but when I do a bandwidth test from router to router, one of the routers has a very low Tx rate as you can see from the attached image. I'm using nstreme and polling. Could this be caused by the noise? If so, will the adaptive noise immunity help? I tried it, but it didn't seem to improve anything. Could it be some limit set that I'm unaware of? Can anyone tell me what I can do to fix the problem?
Also, the RB133 has an internet connection of 1.5Mbs down/up, however, when I test it on the RB411 side, I get 900Kbs/800Kbs.
Thanks so much
You do not have the required permissions to view the files attached to this post.
 
User avatar
cjack
just joined
Posts: 12
Joined: Tue Jun 05, 2007 11:42 am
Location: South Africa
Contact:

Re: Router to Router problem

Sun Aug 23, 2009 12:25 am

looking at your atc file the signal to noise is 14dB witch is really bad. i also noticed your running 5320Mhz make sure your antennas is in that range allot of mistakes comes from using a strong antenna like a 24dBi gain grid and having it blast a signal out side of it's focused range most common antenna's is 54xx to 57xx or 57xx to 58xx . it will still work but noise will be high.

Bad signal to noise can be a result of thing's like a wet connector, damaged lmr cable or wireless card also ofc something close to you on that same frequency.
 
brandonros
just joined
Topic Author
Posts: 11
Joined: Sat Aug 15, 2009 9:20 am

Re: Router to Router problem

Sun Aug 23, 2009 11:36 pm

Thanks for the help. I changed the frequency to 5765 Mhz and it seemed to help a little bit. On my station wds side, I now have a signal to noise of closer to 20db and an overall CCQ closer to 45. However, on my AP backhaul, I'm only getting an Overall Tx CCQ of about 15% - 25%, but on the same router on the local wireless side, I'm getting 100%. I've attached a screen shot. Why would the AP only transmit 15%? Would would cause that? Hardware? A setting?

Also, now that it's on 5765Mhz, my download speed is about 300Mbps. When I was on 5320Mhz, I was getting about 500Mbps. We pay for a 1.5 down/up speed, which the AP gets, but the station has never gotten that speed.
Thanks
You do not have the required permissions to view the files attached to this post.
 
User avatar
cjack
just joined
Posts: 12
Joined: Tue Jun 05, 2007 11:42 am
Location: South Africa
Contact:

Re: Router to Router problem

Mon Aug 24, 2009 8:22 pm

hi

OK let's start at the beginning .. first make sure your freq. your using is in your antenna range. next if i understand you correctly your 5ghz is running your 5mile link try turning on Nstream for this link this will up your data rate and ccq most of time. just make sure you tun it on on the furthest link first as only nstream can connect to nstream .. if you have nstream running all rdy, and this link us 2 work fine i suggest looking at interfearince by scanning or hardware (wet ,connector, cable etc.) or wireless card.
 
brandonros
just joined
Topic Author
Posts: 11
Joined: Sat Aug 15, 2009 9:20 am

Re: Router to Router problem

Tue Aug 25, 2009 7:24 am

Ok, after tuning to every frequency available, I found that I get the fastest download/upload speed by being on 5320Mhz. At the higher 5700-range frequencies, I get a better CCQ, but for some reason, my internet speeds are way down. But either way, I'm not exactly sure what my frequencies my antenna's range is. It was purchased from my ISP, so I may call and ask them. Here's a pic... Image It's about 20-inches wide.

Here's some good news though... After your suggestion to mess with Nstreme, I made some progress. Our Nstreme was already turned on. With the Nstreme turned on, I checked my internet speed and got about 400Mbps. Soooo, I turned Nstreme off, and checked my speed, and I got nearly 1400Mps. This is a great improvement so thank you for the help! Unfortunately, I'm still getting a signal-to-noise of about 14db and overall ccq of about 50%, so I think there can definitely still be improvement. My guess is that there may be a few trees slightly taller than my antenna causing interference between the 5-miles.

Who is online

Users browsing this forum: jb1204, voytecky and 31 guests