Manual:Wireless card diagnostics: Difference between revisions

From MikroTik Wiki
Jump to navigation Jump to search
No edit summary
Line 21: Line 21:
== DC grounded antennas ==  
== DC grounded antennas ==  


Also make sure that your antenna is DC grounded:  
Also make sure that your antenna is DC shorted:  


DC grounded antenna. This antenna doesn't need a Coax lightning arrestor:  
DC shorted antenna. This antenna doesn't need a Coax lightning arrestor:  


[[File:Dc grounded.jpg|DC grounded antenna]]
[[File:Dc grounded.jpg|DC shorted antenna]]


NOT DC grounded antenna. This antenna needs a Coax lightning arrestor to avoid sudden wireless card damage. Note the OL (Overload) in the multimeter:
NOT DC shorted antenna. This antenna needs a Coax lightning arrestor to avoid sudden wireless card damage. Note the OL (Overload) in the multimeter:


[[File:Dc notgrounded.jpg|DC NOT grounded antenna]]
[[File:Dc notgrounded.jpg|DC NOT shorted antenna]]


[[Category:Manual]]
[[Category:Manual]]

Revision as of 11:36, 17 December 2009

ESD damage

To test if your R52 or R52H card is malfunctioning due to lightning/storm electrostatic damage, use a multimeter:


Damaged card:

Storm1.jpg


Normal card:

Storm2.jpg

Testing area close-up:

Storm3.jpg


DC grounded antennas

Also make sure that your antenna is DC shorted:

DC shorted antenna. This antenna doesn't need a Coax lightning arrestor:

DC shorted antenna

NOT DC shorted antenna. This antenna needs a Coax lightning arrestor to avoid sudden wireless card damage. Note the OL (Overload) in the multimeter:

DC NOT shorted antenna