JVC 240-020-505 manual Xii, Recommended separation distance

Guidance and Manufacturer’s declaration-electromagnetic immunity

The Model 240-020-505 is intended for use in the electromagnetic environment specified below.

The customer or the user of the Model 240-020-505 should assure that it is used in such an environment.

Immunity Test	IEC/EN 60601	Compliance Level	Electromagnetic environment-
	Test Level			guidance
			Portable and mobile RF communications
			equipment should be used no closer
			to any part of the Model 240-020-505,
			including cables than the recommended
			separation distance calculated from
			the equation applicable to the
			frequency of the transmitter.
			Recommended separation distance
RF Common mode/	3 Vrms	3 Vrms	d =1.2
Conducted
Susceptibility	150 kHz to 80 MHz
IEC/EN 61000-4-6
Radiated RF	3 V/m	3 V/m	d =1.2	: 80 MHz to 800 MHz
Electromagnetic
Fields	80 MHz to 2.5 GHz		d =2.3	: 800 MHz to 2.5 GHz
IEC/EN 61000-4-3
			Where P is the maximum output
			power rating of the transmitter in
			watts (W) according to the transmitter
			manufacturer and d is the recommended
			separation distance in meters (m).
			Field strengths from fixed RF
			transmitters, as determined by an
			electromagnetic site survey,a should
			be less than the compliance level in
			each frequency range.b
			Interference may occur in the vicinity
			of equipment marked with the
			following symbol:

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.

aField 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 Model 240-020-505is used exceeds the applicable RF compliance level above, the Model 240-020-505should be observed to verify normal operation. If abnormal performance is observed, additional measures may be necessary, such as re- orienting or relocating the Model 240-020-505.

bOver the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.

Recommended separation distance between portable and mobile RF communications

equipment and the Model 240-020-505

The Model 240-020-505is intended for use in the electromagnetic environment in which radiated RF disturbances are controlled. The customer or the user of the Model 240-020-505can help prevent electromagnetic interference by maintaining a minimum distance between portable and mobile RF communications equipment (transmitters) and the Model 240-020-505as recommended below, according to the maximum output power of the communications equipment.

Rated maximum	separation distance according to frequency of transmitter
output power of		m
transmitter
W	150 kHz to 80 MHz	80 MHz to 800 MHz	800 MHz to 2.5 GHz
	d =1.2	d =2.3	d =1.2
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 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 watt (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.

XI XII