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MikroTik App
 
George90
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Posts: 51
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Spectral scan all channels

Tue Mar 15, 2016 3:52 am

I'm trying to find best channel and I used spectral-scan.
FREQ  DBM GRAPH                                                                  
4811 -107 .                                                                      
4853  -73 :::::::::::::::::::::::::::::::.                                       
4896  -59 ::::::::::::::::::::::::::::::::::::::::::::::::.                      
4938  -99 :.                                                                     
4981  -87 :::::::::::::::.                                                       
5024  -86 ::::::::::::::::.                                                      
5066  -78 ::::::::::::::::::::::::::.                                            
5109  -72 :::::::::::::::::::::::::::::::::.                                     
5151  -77 :::::::::::::::::::::::::::.                                           
5194  -77 :::::::::::::::::::::::::::.                                           
5236  -50 :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::.           
5279  -50 :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::.           
5321  -70 :::::::::::::::::::::::::::::::::::.                                   
5364  -71 ::::::::::::::::::::::::::::::::::.                                    
5407  -75 :::::::::::::::::::::::::::::.                                         
5449  -71 ::::::::::::::::::::::::::::::::::.                                    
5492  -59 ::::::::::::::::::::::::::::::::::::::::::::::::.                      
5534  -60 :::::::::::::::::::::::::::::::::::::::::::::::.                       
5577  -70 :::::::::::::::::::::::::::::::::::.                                   
5620  -62 ::::::::::::::::::::::::::::::::::::::::::::.                          
5662  -64 ::::::::::::::::::::::::::::::::::::::::::.                            
5705  -86 ::::::::::::::::.                                                      
5747  -79 ::::::::::::::::::::::::.                                              
5790  -66 ::::::::::::::::::::::::::::::::::::::::.                              
5833  -67 :::::::::::::::::::::::::::::::::::::::.                               
5875  -72 :::::::::::::::::::::::::::::::::.                                     
5918  -79 ::::::::::::::::::::::::.                                              
5960  -99 :.                                                                     
6003  -98 ::.                                                                    
6045  -98 ::.                                                                    
6088 -100 .
My card is set to Belgium and manual tx power. Why this spectral scan gives frequencies that I can't use?

Here is my Freq. Usage from winbox:
Freq..JPG
I'm currently on 5520 and everything seems fine.
On 5540 signals are better but ccq and throughput are lower.
You do not have the required permissions to view the files attached to this post.
 
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chechito
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Re: Spectral scan all channels

Tue Mar 15, 2016 5:36 am

i think mikrotik spectral analysis can help on some situations

but is far from a real spectrum analyzer so take results with care
 
mennowz
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Re: Spectral scan all channels

Tue Mar 15, 2016 10:18 pm

Hi George,

odd.. i expect this to only show the allowed channels.

I'll test this in the lab and get back to you, can you give us a screenshot of the wireless config (tick the advanced button!) in Winbox or a Export compact in CLI?

Menno
I'm trying to find best channel and I used spectral-scan.
FREQ  DBM GRAPH                                                                  
4811 -107 .                                                                      
4853  -73 :::::::::::::::::::::::::::::::.                                       
4896  -59 ::::::::::::::::::::::::::::::::::::::::::::::::.                      
4938  -99 :.                                                                     
4981  -87 :::::::::::::::.                                                       
5024  -86 ::::::::::::::::.                                                      
5066  -78 ::::::::::::::::::::::::::.                                            
5109  -72 :::::::::::::::::::::::::::::::::.                                     
5151  -77 :::::::::::::::::::::::::::.                                           
5194  -77 :::::::::::::::::::::::::::.                                           
5236  -50 :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::.           
5279  -50 :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::.           
5321  -70 :::::::::::::::::::::::::::::::::::.                                   
5364  -71 ::::::::::::::::::::::::::::::::::.                                    
5407  -75 :::::::::::::::::::::::::::::.                                         
5449  -71 ::::::::::::::::::::::::::::::::::.                                    
5492  -59 ::::::::::::::::::::::::::::::::::::::::::::::::.                      
5534  -60 :::::::::::::::::::::::::::::::::::::::::::::::.                       
5577  -70 :::::::::::::::::::::::::::::::::::.                                   
5620  -62 ::::::::::::::::::::::::::::::::::::::::::::.                          
5662  -64 ::::::::::::::::::::::::::::::::::::::::::.                            
5705  -86 ::::::::::::::::.                                                      
5747  -79 ::::::::::::::::::::::::.                                              
5790  -66 ::::::::::::::::::::::::::::::::::::::::.                              
5833  -67 :::::::::::::::::::::::::::::::::::::::.                               
5875  -72 :::::::::::::::::::::::::::::::::.                                     
5918  -79 ::::::::::::::::::::::::.                                              
5960  -99 :.                                                                     
6003  -98 ::.                                                                    
6045  -98 ::.                                                                    
6088 -100 .
My card is set to Belgium and manual tx power. Why this spectral scan gives frequencies that I can't use?

Here is my Freq. Usage from winbox:
Freq..JPG
I'm currently on 5520 and everything seems fine.
On 5540 signals are better but ccq and throughput are lower.
 
George90
Frequent Visitor
Frequent Visitor
Topic Author
Posts: 51
Joined: Mon Sep 27, 2010 4:50 am

Re: Spectral scan all channels

Wed Mar 16, 2016 6:43 pm

i think mikrotik spectral analysis can help on some situations

but is far from a real spectrum analyzer so take results with care
I attached screenshot bellow.
wifi.JPG
You do not have the required permissions to view the files attached to this post.
 
mennowz
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Posts: 84
Joined: Tue Apr 09, 2013 8:50 pm
Location: The Netherlands
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Re: Spectral scan all channels

Wed Mar 16, 2016 9:33 pm

Hi George,

try and set frequency mode to regulatory domain and do the scan again :D

Menno
 
George90
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Posts: 51
Joined: Mon Sep 27, 2010 4:50 am

Re: Spectral scan all channels

Thu Mar 24, 2016 8:26 pm

Sorry for late reply.

It's same when I use regulatory domain.

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