Welch Allyn Spot VS100, Инструкция по применению

Страница: 53 / 64

Recommended separation distances between portable and mobile RF communications
equipment and the device
between portable and mobile RF communications equipment (transmitters) and the device as recommended below,
according to the maximum output power of the communications equipment.
Separation distance according to frequency of transmitter (m)
Rated max. output
power of transmitter
(W)
150 kHz to 80 MHz
d=(1.17)
80 MHz to 800 MHz
d=(1.17)
800 MHz to 2.7 GHz
d=(2.33)
0.01 0.12 0.12 0.23
0.1 0.37 0.38 0.73
1 1.17 1.20 2.30
10 3.69 3.79 7.27
100 11.67 12.00 23.00
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 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.
Test specifications for enclosure port immunity to RF wireless communications equipment
Test frequency
(MHz)
Band
a
MHz
Service
a
Modulation
b Maximum power
(W)
Distance (m) Immunity
test level (V/
m)
385 380 - 390 TETRA 400
Pulse modulation
b
18 Hz
1.8 0.3 27
450 430 - 470 GMRS 460,
FRS 460
FM
c
±5 kHz
deviation
1 kHz sine
2 0.3 28
710 704 - 787 LTE band 13, 17 Pulse modulation b
217 Hz
0.2 0.3 9
745
780
810 800 - 960 GSM 800/900,
TETRA 800,
iDEN 820,
CDMA 850,
LTE Band 5
Pulse modulation
b
18 Hz
2 0.3 28
870
930
Directions For Use Specifications 49