53
Test
Frequency
(MHz)
Band
(a)
(MHz)
Service (a) Modulation
(b)
Maximum
Power
(W)
Distance
(m)
Immunity
Test Level
(V/m)
Note: If necessary to achieve the IMMUNITY TEST LEVEL, the distance between the transmitting
antenna and the ME EQUIPMENT or ME SYSTEM may be reduced to 1 m. The 1 m test distance is
permitted by IEC 61000-4-3.
(a) For some services, only the uplink frequencies are included.
(b) The carrier shall be modulated use a 50% duty cycle square wave signal.
(c) As an alternative to FM modulation, 50% pulse modulation at 18 Hz may be used because while it
does not represent actual modulation, it would be worst case.
Recommended Separation Distances
Recommended Separation Distance Between Portable and Mobile RF Communication Equipment
and the ME Equipment
The ME Equipment is intended for use in an electromagnetic environment in which radiated RF
disturbances are controlled. The customer or the user of the ME Equipment can help prevent
electromagnetic interference by maintaining a minimum distance between portable and mobile RF
communications equipment (transmitters) and the ME Equipment as recommended below, according to
the maximum output power of the communication equipment.
Rated maximum output power of
transmitter (W)
Separation Distance According to Frequency of
Transmitter (m)
d = 0.6*Sqrt (P)
0.01 0.06
0.1 0.19
1 0.6
10 1.9
100 6
For transmitters rated at a maximum output power not listed above, the recommended separation
distance d in meters (m) can be estimated using the equation applicable to the frequency of the
transmitter, where P is the maximum output power rating of the transmitter in watts (W) according to the
transmitter manufacturer.
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