BeneVision TM80, Руководство оператора

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B - 6 BeneVision TM80 Telemetry Monitor Operator’s Manual
a The ISM (industrial, scientific, and medical) bands between 150 kHz and 80 MHz are 6.765
MHz to 6.795 MHz; 13.553 MHz to 13.567 MHz; 26.957 MHz to 27.283 MHz; and 40.66 MHz to
40.70 MHz. The
amateur radio bands between 0,15 MHz and 80 MHz are 1,8 MHz to 2,0 MHz, 3,5 MHz to 4,0
MHz, 5,3 MHz to 5,4 MHz, 7 MHz to 7,3 MHz, 10,1 MHz to 10,15 MHz, 14 MHz to 14,2 MHz,
18,07 MHz to 18,17 MHz, 21,0 MHz to 21,4 MHz, 24,89 MHz to 24,99 MHz, 28,0 MHz to 29,7
MHz and 50,0 MHz to 54,0 MHz.
b 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 device is used exceeds
the applicable RF compliance level above, the device should be observed to verify normal
operation. If abnormal performance is observed, additional measures may be necessary, such
as re-orienting or relocating the device.
c Over the frequency ranges 150 kHz to 80 MHz, field strengths should be less than 3V/m.
Recommended Separation Distances between Portable and Mobile RF, Communications
Equipment and This Equipment
The equipment is intended for use in an electromagnetic environment in which radiated RF
disturbance are controlled. The customer or the user of the device can help prevent
electromagnetic interference by maintaining a minimum distance between portable and
mobile RF communications equipment (transmitters) and the device as recommended below,
according to the maximum output power of the communication equipment.
Rated Maximum
Output power of
Transmitter Watts
(W)
Separation Distance According to Frequency of Transmitter (m)
150kHz -80MHz
d
80MHz to 800MHz
d =
800MHz to 2.7GHz
d =
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
For telemetry monitors at a maximum output power not listed above, the recommended
separation distanced in meters (m) can be determined 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 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.
P
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