User's Manual

DH-PFM880 User Manual DaHua All Right Reserved
Page 42
1. Adjust the direction of the DH-PFM880 device.
Please rotate the DH-PFM880 device since the antenna inside the device is
directional.
2. Switch to other wireless channel
Switch to other wireless channel ‘cause there are much interferences in this
channel.
3. Turn off the other interference sources
Maybe there are other WIFI devices nearby and cause interferences. Try to turn
off other WIFI devices nearby, or move DH-PFM880 to another clean
environment.
4. The signal strength between 2 DH-PFM880 devices is too
weak, and throughput is low.
1. The DH-PFM880 AP and Station devices are not Line-of-Sight, or there are
blocks like a building in between the AP and Station devices.
2. The Station device and AP device is not aligned very well, including both
horizontally and vertically, since the antenna of the DH-PFM880 is directional.
3. The Station device is installed in the windows, and the windows glass shields
the wireless signal.
4. The distance between the AP and Station devices is too far.
5. The signal strength is high, but the throughput is low
1. There are two much interferences, or multi-path interferences. For example,
there are two much 2.4GHz or 5.8GHz WIFI device working nearby.
2. The RJ45 ports of the DH-PFM880 device don’t work well.
6. During the point-to-point or point-to-multi-point