User's Manual

ZDC ZA-5000-D User's Manual V2.3.2
Chapter 3 Basic configuration
Page 24
Notice:
The signal strengthens (dBm) is negative value, the more little the absolute value of it, the
better the signal strengthens. For the better throughput of wireless network, you should
better adjust the signal strengthen as better as possible.
The signal strengthens (Percent) is just a reference value. It lies on not only the real signal
strengthen but also the academic signal strengthen which lies on the Link Test settings. So
you should take the signal strengthens (dBm) as reference while adjusting antenna.
6. Take the Access Points outdoor and do “Link Test”.
Normally, after the step from 1 to 5, move the Access Points outdoor, they can work well
only make sure that there are direct visual space between them. The only thing you should do
is to adjust the antenna to best angel to get the best signal strengthen. The following table
shows those values.
Diagram 8 Distance and Signal Strengthen
Distance(km) Best Signal Strengthen (dBm)
3 －64 ~ －56dBm
6 －72 ~ －62dBm
10 －75 ~ －67dBm
18 －80 ~ －72dBm
For example, in 5GHz, －64～－56dBm, data rate can reaches 54Mbps, So you should adjust
antenna to get at least
Example: If the space between wireless bridges is 3km then the best signal strengthen can reach
－60dBm.If get any other trouble outdoor while set up AP. please see
Troubleshooting chapter.