Barkey plasmatherm - Page 21

Safety advice
3.4.3 Recommended safety distance
Recommended safety distances between portable and mobile
HF telecommunications devices and the Barkey plasmatherm
The Barkey plasmatherm is intended for operation in an electromagnetic environment in
which HF interference is controlled. The customer or user of the Barkey plasmatherm can help
avoid electromagnetic interference by observing the minimum distance between portable and
mobile HF communications devices (transmitters) and the Barkey plasmatherm as stated be-
low, depending on the output power of the communication device.
Nominal
transmitter
power W
Safety distance depending on transmitter frequency m
150 kHz to 80 MHz
Pd 17,1
80 MHz to 800 MHz
Pd 17,1
800 MHz to 2.5 GHz
Pd 33,2
0.01
0.12
0.12
0.23
0.1
0.37
0.37
0.74
1
1.17
1,17
2.33
10
3.69
3.69
7.38
100
11.67
11.67
23.33
For transmitters whose maximum nominal output is not given in the above table, the recom-
mended safety distance d in metres (m) can be determined using the equation belonging to the
appropriate column, where P is the maximum nominal output of the transmitter in Watts (W)
as stated by the transmitter manufacturer.
NOTE 1 The higher frequency level applies at 80 MHz and 800 MHz.
NOTE 2 These guidelines may not apply in all cases. The propagation of electromagnetic
variables is affected by absorption and reflection of buildings, objects and people.