MikroTik

hi
please write your estimate about bandwidth throughput this links:
LINK 1

dish kenbotong 28db dual pol
433Ah
XR5
dual Nstreme

LINK 2

dish kenbotong 32.5 dual
433AH
XR5
dual Nstreme

thanks

Sorry, not rely answering your question, but what program did you use to plot this?
What i can confirm though is that it appears that your Franzen might be interfered with and usually what i found on this long links is that if that happens, you get a perfect signal, but as soon as you start pulling data on the link, every thing goes downhill.

this software is LINKPlanner.product of motorola
any body no suggestion?

Thanks.

you must estimate STN or the signal level each side see other side.
if you decide radio power output and antenna gain (28dbi) and effective loss (cable, etc) then the software could you estimate singnal levels.
you need also to know: frequency, channel width (5,10,20,40Mhz) and know if sites are noise free or not.
then you need a visual survey of sites: are here trees, lakes ?

in your examples, without any other info you could have from 15 to 40Mbit

Hi, I use the Motorola Link Planner extensively at my job and I can assure you that its estimations are more than precise if you refer to Motorola products. Motorola field installations keep on confirming this.
In the last version of Link Planner Motorola has included the new serie PTP250 that is basically a 2x2 Mimo system that feeds a dual pol 23dBi patch panel. Not far from Mikrotik last systems. When I need to figure out expected performances for MT 802.11n systems I usually start simulating the same link with PTP250 adding later some corrections to keep in play the fact that R52NH are not "exactly the same" as motorola radio modules...
To get a real or, at least, expected real estimations, I usually set interferences to values ranging from -85dBm to -82dBm and I consider an extra loss on MT systems of about 5 to 10dB: for example if Motorola estimates 50Mbps using integrated 23dBi I assume to get the same using 28dBi dish. (28-23 = 5 x 2 = 10)! These kind of estimations usually leads to estimations that are worst but near than what I really get in the field.
Which is the maximum EIRP power you will run the link? Which type of antennas are you going to use?
If you provide me with these infos I can try an estimation for you.
Have a nice weekend.
f.

Based on your information, assuming no fresnel issues, a noise floor of -85, LMR600-2m jumpers, no more than 2db loss pigtails, 5800mhz, 24dbm tx....... and with similar links running today.....

The first link should come in at -58 and yield 30-35mbps on a 36mb negotiation. If running turbo, we see a drop to -60 with 36*2, but yielding around 50mbps throughput (tcp). With no interference, CCQs of 90+ are possible.

The second link should come in at -54. Again, 30mbps are possible on a standard channel.


We have a link of 49.6km running on SR5's and 31db dishes, turbo, 48*2, that delivers a solid 55mbps tcp and 60mbps udp with CCQ of near 100%.

Linkplanner is a solid planning tool and we use it as well. If the path is LOS, then it is a very good place to start.