User's Manual

Wideband Radio Head Safety
1-4 044-05251 Rev A
Indoor UMTS
The safety distance can be read to 0.035 meter for 10W/m
2
(2100MHz).
Electrostatic Discharge (ESD)
ESD can severly damage essential parts of teh equipment if not handled carefully. Parts on
printed circuit board assemblies (PCBA) as well as other parts in the equipment are sensitive
to ESD. Never touch the PCBA or uninsulated conductor surfaces unless absolutely
necessary.
If you must handle the PCBAs or uninsulated conductor surfaces, use ESD protective
equipment or first touch the chassis with your hand. Never let your clothes touch PCBAs or
uninsulated conductor surfaces and always store PCBAs in ESD-safe bags.
Figure 1-1 Safety distance to active antenna.
WRH output power +24dBm
Feeder loss –5dB
Antenna gain +3dBi
EIRP +22dBm
10
15
20
25
30
35
40
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
1.0
45
50
1.1 1.2 1.3 1.4
0.0
1
0.0
3
0.1
0.3
1.0
3.2
10.
0
31.
6
100
4.5W/m
2
(900MHz)
9W/m
2
(1800MHz)
10W/m
2
(2100MHz)
Antenna output power in dBm
Antenna output power in W
Safety distance to antenna in meter