I will start a project and we must use the 4.9Ghz frecuency but I have a doubt about if I need upgrade the license Level 4 or the RouterOS will recognize the card by default.
Thanks for the reply, but I must use 4.9Ghz because is the license to police deparment; so I just need know if with the leve 4 of RouterOS I can will use the 4.9Ghz or I will need buy other license. Because actually in the combotext only apper 5Ghz and 2.4Ghz
they are cards in 2.4 working with frequency convertors, it is because of it that often can be observed nets in this spectrum. It is necessary to look for the suitable channels, in the same way as for one xr9.
I have installed these under license for our local government. You need to buy the Custom Frequency Upgrade for each RouterBoard that you are running at 4.9GHz. You can buy thius directly from Mikrotik or from Mikrotik distributors that sell them.
Tom
PS You need this upgrade even if you are using the sr4 card for 4.9GHz.