NOTE 2:
These guidelines might not apply in every situation. Elec-
tromagnetic propagation is affected by absorption and reflection
from surfaces, objects and people.
a:
Field strengths of stationary transmitters, e.g. base stations for
wireless telephones (mobile/cordless) and land mobile radio instal-
lations and transmitters for amateur radio, MW and VHF transmis-
sion, cannot be forecast precisely on a theoretical basis. To assess
the electromagnetic environment due to stationary HF transmitters,
an electromagnetic site investigation should be considered. If the
measured field strength at the site where the product is to be used
exceeds the corresponding HF conformity value specified above,
the unit should be observed to check for normal operation. If any
abnormal performance is noted, further measures may be neces-
sary, such as realigning or moving the product.
b:
In the frequency range of 150 kHz to 80 MHz, the field strengths
should be under 3 V/m.
Band
a)
(MHz)
Service
b)
Modulation
b)
Max. output
(W)
Distance (m)
Immunity test
level (V/m)
380 – 390
TETRA 400
Pulse modula-
tion
b)
18 Hz
1.8
0.3
27
430 – 470
GMRS 460
FRS 460
Fm
c)
±
5 kHz
Deviation
1 kHz sine
2
0.3
28
704 – 787
LTE band 13,
17
Pulse modula-
tion
b)
18 Hz
0.2
0.3
9
800 – 960
GSM 800/900
TETRA 800
iDEN 820
CDMA 850
LTE band 5
Pulse modula-
tion
b)
217 Hz
2
0.3
28
Test specification for IMMUNITY OF
ENCLOSING INTERFACE vis-à-vis
wireless HF communication
devices
Safety
EMC and requirements of the electrical standards > Recommended safety distances
26.05.2021
Refrigerator/freezer BL series
32