Separation Distances; Essential Performance - GE Vscan Extend User Manual

Safety

Separation distances

Recommended separation distances between portable and mobile RF communications
The ultrasound unit is intended for use in an electromagnetic environment in which radiated RF
disturbances are controlled. The customer or the user of the ultrasound unit can help prevent
electromagnetic interference by maintaining a minimum distance between portable and mobile RF
communications equipment (transmitters) and the ultrasound unit as recommended below, according to the
maximum output power of the communications equipment.
Rated maximum output
of transmitter W
0,01
0,1
1
10
100
For transmitters rated at a maximum output power not listed above the recommended separation distance d
in metres (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.
NOTE 1: At 80 MHz and 800 MHz, the separation distance for 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.

Essential Performance

2-18
Table 2-4: Separation distances
equipment and the ultrasound unit
Separation distance according to frequency of transmitter (m)
150 kHz to 80 MHz
0,12
0,38
1,2
3,8
12
The essential performance of the Vscan Extend is:
• The ability to display physiological images as input for
diagnosis by qualified and trained healthcare professionals.
• The ability to display quantified data as input for diagnosis
by qualified and trained healthcare professionals.
• The display of ultrasound indexes as aid for safe use of the
Vscan Extend.
80 MHz to 800 MHz
0,12
0,38
1,2
3,8
12
Vscan Extend
800 MHz to 2,5 GHz
0,23
0,73
2,3
7,3
23
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User Manual
5721203-100 Rev. D