Recommended separation distances between portable and mobile HF-
communications equipment and the product
The product is intended for use in an electromagnetic environment in which radiated RF
disturbances are controlled. The customer or the user of the product can help prevent
electromagnetic interference by maintaining a minimum distance between portable and mobile
RF communications equipment (transmitters) and the product – according on output power and
frequency of the communications equipment – as recommended in the following table.
Rated maximum
output power of
transmitter in
watts
[W]
Separation distance according to the frequency of transmitter in
meter [m]
150 kHz do 80 MHz
d
= 1.2√P
80 MHz do 800 MHz
d
= 1.2√P
800 MHz do 2,5 GHz
d
= 2.3√P
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 800MHz, 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, people and an.
RF - frequency, from the electromagnetic spectrum interval, which is between the low range of
radio frequencies of long waves and the infrared range; useful for radio transmission. Limit
frequencies are 9 kHz and 3 000 GHz.
Close vicinity (e.g. 1 m) of a device for treatment via
microwaves or short waves may cause unstable product
operation.
Use of accessories and cables other than accessories and
cables described in this manual may cause increased
emission of electromagnetic waves and decreased wear
resistance of the product.
The product can neither be operated near, nor put over,
another medical device, otherwise it will be necessary to
watch the product operation in order to make sure that no
disturbances occur.