Scheduled maintenance: Community will be offline Monday June 17th, 1:00 AM - 6:00 AM (PT)
Highlighted
New Member
Posts: 7
Registered: ‎05-23-2016
Accepted Solution

Nanostation 5AC and loco PtmP Installation needs experienced advise

Hey Guys,

 

A costumer wanted to get internet in other buildings on his property. 

At first just one building so I thought of using Nanostation ac locos. 

This was my first time of a non temporarily installation with Nanostations. 

I dont have that much experience regarding performance, alignment and configuration so I would be very thankful if someone here could help me with some problems and questions. 

 

following Setup:

 

NS loco is Access Point ptmp ac with a Gigabit uplink. 

I have two stations. NS 5AC loco and NS 5AC. 

The two locos are placed behind windows and can see each other. Distance about 50m. 

 

My biggest confusion now is the low throughput capacity of this bridge connection. Maximum of 55Mbit allthough they had 500+ when I pre configured them at home. 

Further I dont really understand why the lwo signal quality? 

 

Signal power? frequency? What can I do to improve this installation? 

 

Thanks

Bildschirmfoto 2019-04-28 um 17.43.56.png

Accepted Solutions
SuperUser
Posts: 42,834
Registered: ‎06-23-2009
Kudos: 8761
Solutions: 1491

Re: Nanostation 5AC and loco PtmP Installation needs experienced advise

[ Edited ]

Without the actual setup details, I can only guess.

 

I'll start with the highest probability: the glass is multi-pane,

or coated with a thin metal film ['low-E']. If so, they will very

effectively block rf signals in this band. Only placing the

radios outdoors with no obstructions will fix this.

 

Your one screenshot shows extremely low signal levels [-82dBm].

That accounts for the terrible performance, but the reason isn't

clear. Again: the glass is most likely, but it could also be a low

rf output setting--if you even set that. You should not use 'auto'

frequency settings; instead choose a channel in the 5700MHz

region. [But this doesn't account for the low signal.] Select

30MHz channel width and don't change other wireless settings.

 

Of course, always update firmware to the latest release.   Dave


> HQ in Seacoast region New Hampshire U.S.A.
> Ubiquiti Certified Trainer [UCT] for:
     UBWA [AirMax] / UEWA [UniFi] / UBRSS [routers]
UBNT.NH@gmail.com

View solution in original post

SuperUser
Posts: 42,834
Registered: ‎06-23-2009
Kudos: 8761
Solutions: 1491

Re: Nanostation 5AC and loco PtmP Installation needs experienced advise

You can tell by that metallic sheen on the windows

that this is coated [low-E] glass. Here, the mistake

was to use these radios behind this kind of glass.

It simply doesn't work properly, and there's no fix.

 

Put the radios on the outside of the buildings.

 

You should not use very high rf output; it puts the

radios in a very poor operating range, and it simply

reflects off the glass to create huge interference.   Dave


> HQ in Seacoast region New Hampshire U.S.A.
> Ubiquiti Certified Trainer [UCT] for:
     UBWA [AirMax] / UEWA [UniFi] / UBRSS [routers]
UBNT.NH@gmail.com

View solution in original post


All Replies
SuperUser
Posts: 42,834
Registered: ‎06-23-2009
Kudos: 8761
Solutions: 1491

Re: Nanostation 5AC and loco PtmP Installation needs experienced advise

[ Edited ]

Without the actual setup details, I can only guess.

 

I'll start with the highest probability: the glass is multi-pane,

or coated with a thin metal film ['low-E']. If so, they will very

effectively block rf signals in this band. Only placing the

radios outdoors with no obstructions will fix this.

 

Your one screenshot shows extremely low signal levels [-82dBm].

That accounts for the terrible performance, but the reason isn't

clear. Again: the glass is most likely, but it could also be a low

rf output setting--if you even set that. You should not use 'auto'

frequency settings; instead choose a channel in the 5700MHz

region. [But this doesn't account for the low signal.] Select

30MHz channel width and don't change other wireless settings.

 

Of course, always update firmware to the latest release.   Dave


> HQ in Seacoast region New Hampshire U.S.A.
> Ubiquiti Certified Trainer [UCT] for:
     UBWA [AirMax] / UEWA [UniFi] / UBRSS [routers]
UBNT.NH@gmail.com
New Member
Posts: 7
Registered: ‎05-23-2016

Re: Nanostation 5AC and loco PtmP Installation needs experienced advise

Hi Dave,

 

thanks for your quick response. 

Something I actually didnt recognize is a metal structure in front one of the windows (facepalm).

But still such a bad signal quality within 50m? Is there any way to find out if the windows have a thin layer? 

 

Your recommended configuration changes improved the throughput by around 70%! 

I dont get it. How is 30Mhz in the frequency 5770 (DFS) better than 40Mhz? 

 

The output power is on 23dbm (maximum)

Bildschirmfoto 2019-05-02 um 20.47.17.png
IMG_7006.jpg
New Member
Posts: 7
Registered: ‎05-23-2016

Re: Nanostation 5AC and loco PtmP Installation needs experienced advise

Hi Dave, 

 

thanks for your quick response. 

 

Your recommendations improved the throughput by roundabout 70%! 

I dont get it. How is 30Mhz and the frequency 5770 better than 40Mhz?

Output power is 23dbm. 

 

In addition, I totally forgot that in front one of the windows is a metal strukture...(see pic)

But still...within 50m such a bad signal? 

 

Is there any recommended way or tutorial to get to know all features and ways/tricks to configure this hardware the right way?

Bildschirmfoto 2019-05-02 um 20.47.17.png
IMG_7006.jpg
SuperUser
Posts: 42,834
Registered: ‎06-23-2009
Kudos: 8761
Solutions: 1491

Re: Nanostation 5AC and loco PtmP Installation needs experienced advise

You can tell by that metallic sheen on the windows

that this is coated [low-E] glass. Here, the mistake

was to use these radios behind this kind of glass.

It simply doesn't work properly, and there's no fix.

 

Put the radios on the outside of the buildings.

 

You should not use very high rf output; it puts the

radios in a very poor operating range, and it simply

reflects off the glass to create huge interference.   Dave


> HQ in Seacoast region New Hampshire U.S.A.
> Ubiquiti Certified Trainer [UCT] for:
     UBWA [AirMax] / UEWA [UniFi] / UBRSS [routers]
UBNT.NH@gmail.com