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CHAPTER TWENTY-FOUR
Technical specifications
198
Technical specifications
Recommended separation distances between portable and mobile RF communications
equipment and the Otoport OAE+ABR
The Otoport OAE+ABR is intended for use in an electromagnetic environment in which
radiated RF disturbances are controlled. The user of the Otoport OAE+ABR can help prevent
electromagnetic interference by maintaining a minimum distance between portable and mobile
RF communications equipment (transmitters) and the Otoport OAE+ABR as recommended
below, according to the maximum output power of the communications equipment.
Rated maximum Separation distance according to frequency
output power of of transmitter (m)
transmitter (W)
150 kHz to 80 MHz to 800 MHz to
80 MHz 800 MHz 2.5 GHz
d = 3.5√ P d = 3.5√ P d = 7√ P
0.01 0.35 0.35 0.7
0.1 1.1 1.1 2.2
1 3.5 3.5 7
10 11 11 22
100 35 35 70
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.
Notes:
1 At 80 MHz and 800 MHz, the separation distance for the higher
frequency range applies.
2 These guidelines may not apply in all situations. Electromagnetic
propagation is affected by absorption and reflection from structures,
objects and people.
The Otoport OAE+ABR can be optionally configured with either/both Bluetooth and RFID
functions. The frequency bands for reception and transmission of RF energy for these
functions are as follows:
(a) Bluetooth – 2.4GHz to 2.4835GHz
(b) RFID – 13.56MHz
The Bluetooth and RFID functions of the Otoport OAE+ABR may be interfered with by other
equipment, even if that equipment complies with CISPR emission requirements.