User's Manual

DN:ZRY721-SMSY01 V1.0 Operation Guide
Template version:1 17/18
Radiated RF
IEC 61000-4-3
3 V/m 80 MHz to 2.5
GHz
3 V/m
equation applicable to the
frequency of the transmitter.
Recommended separation
distance：
：：
：
80 MHz to
800 MHz
800 MHz to 2.5
GHz
Where P is the maximum
output power rating of the
transmitter in watts (W)
according to the transmitter
manufacturer and d is the
recommended separation
distance in meters (m).
Field strengths from fixed RF
transmitters, as determined by
an electromagnetic site
survey,
a
should be less than
the compliance level in each
frequency range.
b
Interference may occur in the
vicinity of equipment
marked with the following
symbol:
NOTE 1 At 80 MHz and 800 MHz, the higher frequency range applies.
NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation is
affected by absorption and reflection from structures, objects and people.
a Field strengths from fixed transmitters, such as base stations for radio (cellular/cordless)
telephones and land mobile radios, amateur radio, AM and FM radio broadcast and TV
broadcast cannot be predicted theoretically with accuracy. To assess the electromagnetic
environment due to fixed RF transmitters, an electromagnetic site survey should be
considered. If the measured field strength in the location in which the ZRY721 is used exceeds
the applicable RF compliance level above, the ZRY721 should be observed to verify normal
operation. If abnormal performance is observed, additional measures may be necessary, such
as re-orienting or relocating the ZRY721.
Pd 2.1=
Pd 3.2=