I am working on a 18.06mile link, this was the distance Slave gave when it was able to register once, very low RSSI.
It is w/ 27RD reflector. Do you think 18-20mile link is just fine for this? Does the elevation attribute to poor signal as Point A is too high from Point B.
To give more scenario:
Point A = 300Ft Above Sea Level
Point B = 2400Ft Above Sea Level
Distance = 18.06miles.
Can you elaborate more?
This link should have -70dB at each end which should give you enough for a 1X link but probably not a 2X link.
What is the noise floor at the master and slave? (you will have to switch the master to a slave to do a spectrum analysis). If it’s close to -70 you may not get a link at all.
18 miles is a pretty long shot, you will have to spend quite a bit of time peaking the two dishes.
Are there any Fresnel issues? the Fresnel zone is 66’ at 9.5 miles.
What do you suggest if I make it a 2 hops/pair link, supposed, I will divide this 18.06 to make:
When you say 1X, means 10mb, right? and 2x is 20mb?
Link A: 8miles
Link B: 10miles
Can I be able to make 2x on it?
wht about earth curvature?
I cannot say without more information.
Are there other 5.7 BH’s and/or AP’s - canopy or otherwise?
What is the noise floor at each point in the path?
How much bandwidth are you trying to transport?
There are lot of APs 5735/5775/5815/5835.
I am using a Packetflux Synch to synch the BH Master.
The elevation is like this:
I hope you can advise me of more possibilities to make this work.
Or would you advise, 2400BH20/5400BH20 instead?
Bandwidth is like Internet up to 1mbps + frequent viewing of up to 6 IP Cameras from the other side.
Here is my Option B, making it into 2 Links/Hops:
This will make a 14mile and 6mile hops, from the original 18.06 direct link.
Have you done a spectrum analysis to see what the noise levels are across the 5.7 band?
I will do and post screenshot again.
Made it work already.
I have an 18.9 mile link with 2X running at 99%/99% link test. This is using Wireless Beehive Reflector Dishes. I get about -72dbm. Been up for years now.
Jerry, how are you determining the size of the Fresnel zone on these links?
Here are the calculations for the Fresnel zones.
http://en.wikipedia.org/wiki/Fresnel_zone
Remember, Fresnel is cylindrical so F1 (and the other F) are all around the path; above, below, left, right, odd angles.