User's Manual

Medi-View User Manual
32 Medi-View User Manual
Recommended separation distance
The Medi-View is intended for use in an electromagnetic environment in which radiated RF disturbances are
controlled. The customer of the user of the Medi-View can help prevent electromagnetic interference by
maintaining a minimum distance between portable and mobile RF communications equipment (trans-mitters)
and the Medi-View as recommended below, according to the maximum output power of the com- munications
equipment.
2. 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 elec t rom agnetic
environment due to fixed RF transmitters, an electromagnetic site survey should be considered. If the measured field strength in the location
in which the Medi-View is used exceeds the applicable RF compliance level above, the Medi-View should be observed to verify normal
operation. If abnormal performance is observed, additional measures may be necessary, such as re-orienting or relocating
the Medi-View.
3. Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
Rated maximum output
power of transmitter
4
W
Separation distance according to frequency of transmitter
150kHz to 80MHz
d=1.2√P
80MHz to 800MHz
d=1.2√P
800MHz to 2.5GHz
d=2.3√P
0.01
0.12
0.12
0.23
0.1
0.38
0.38
0.73
1
1.2
1.2
2.3
10
3.8
3.8
7.3
100
12
12
23
At 80 MHz and 800 MHz, the separation distance for the higher frequency range applies.
These guidelines may not apply in all situations. Electromagnetic propagation is af-
fected by absorption and reflection form structures, object and people.
5.6 Explanation of symbols
Symbols on the device
On the device or power supply, you may find the following symbols (nonrestrictive list):
Indicates the device meets the requirements of the applicable EC directives.
Indicates compliance with Part 15 of the FCC rules (Class A or Class B)
Indicates the device is approved according to the UL Demko regulations
Indicates the device is approved according to the VCCI regulations
4. 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 m anufactur er .
Indicates the device is approved according to the BSMI regulations
Indicates the USB connectors on the device