78
Radiated RF
IEC 61000-4-3
(continued)
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:
(IEC 60417 No. 417-IEC-5140:
“Source of non-ionizing
radiation”)
Note: U
T
is the AC mains voltage prior to application of the test level.
At 80 MHz and 800 MHz, the higher frequency range applies.
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 SonoSite ultrasound system is used exceeds the
applicable RF compliance level above, the SonoSite ultrasound system should be observed to verify normal operation. If
abnormal performance is observed, additional measures may be necessary, such as re-orienting or relocating the
SonoSite ultrasound system.
b. Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
FCC Caution:Changesormodificationsnotexpresslyapprovedbythepartyresponsiblefor
compliancecouldvoidtheuser’sauthoritytooperatetheequipment.
Thisdevicecomplieswithpart15oftheFCCRules.Operationissubjecttothefollowingtwo
conditions:
•Thisdevicemaynotcauseharmfulinterference.
•Thisdevicemustacceptany
interferencereceived,includinginterferencethatmaycause
undesiredoperation.
Table 2: Manufacturer’s Declaration - Electromagnetic Immunity (Continued)
Immunity Test IEC 60601 Test Level Compliance Level
Electromagnetic
Environment
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