Hi,
Also, which is the general criteria to know from which number, that the output shows, is considered a good, regular, bad or "imposible to use" link?
the number gives information about the link quality as batman measures it. 1.00 means 100% link quality, 2.00 means 50%, etc. Basically the idea is that the number tells you how many packets you need to send in order to get a single successful transmission. HNA are announced networks which do not run batman.
The criteria for a good / bad / regular / etc link is rather subjective and depends on your demands. Do you need high throughput or just a few bytes per week ? A live video stream over a link which looses more than 50% of the packets requires quite some patience. ;-)
Regards, Marek