14
*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 of the location in which the Merlin@home
transmitter is used exceeds the applicable RF compliance level above, the Merlin@home transmitter should be
observed to verify normal operation. If abnormal performance is observed, additional measures may be
necessary, such as re-orienting or relocating the Merlin@home transmitter.
**Over the frequency range 150 kHz to 80 MHz, field strengths should be less than [V
1
]V/m.
NOTE: The Merlin@home transmitter is intended for use in an electromagnetic
environment in which radiated RF disturbances are controlled. The user of the
Merlin@home transmitter can help prevent electromagnetic interference by maintaining
a minimum distance between portable and mobile RF communications equipment
(transmitters) and the Merlin@home transmitter as recommended below in Table 8,
according to the maximum output power of the communications equipment. For
transmitters rated at a maximum output power not listed in Table 8, the recommended
separation distance (
d
) in meters 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.
Table 7. Recommended separation distances between portable and mobile RF communication
equipment and the Merlin@home transmitter
Rated
maximum
output power
of transmitter
(W)
Recommended separation distance according to frequency of transmitter
(m)
4F
5
150 kHz to 80 MHz
80 MHz to 800 MHz
5F
6
800 MHz to 2.7 GHz
0.01
0.12
0.12
0.23
0.1
0.38
0.38
0.73
1.0
1.2
1.2
2.3
10.0
3.8
3.8
7.3
100.0
12
12
23
Radio Frequency Information
EX1150 and EX1150W Merlin@home™ transmitters use a 2.45 GHz wake-up sequence then
switch to Medical Implant Communications Service (MICS) -based RF telemetry to communicate
with St. Jude Medical implantable devices.
MICS band: 402-405 MHz. The effective radiated power is below the limits as specified in:
Europe: EN ETSI 301 839
USA: FCC 47 CFR Part 95.601-95.673 Subpart E, 95.1201-95.1219
MICS operates at 200kb/s or lower.
5
These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from
structures, objects, and people.
6
At 80 MHz and 800 MHz, the separation distance for the higher frequency range applies.
Summary of Contents for Merlin@home EX1150
Page 1: ...Merlin home Transmitter Model EX1150 EX1150W User s Manual ...
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