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15120-101 Rev. D

Table 206 – Recommended Separation Distances between

Portable and Mobile RF Communications Equipment and the Xcel 255 for ME

Equipment and ME Systems that are NOT Life-supporting.

Guidance and Manufacturer’s Declaration - Electromagnetic Immunity

Recommended Separation Distances for between

Portable and Mobile RF Communications Equipment and the Xcel 255

The Xcel 255 is intended for use in the electromagnetic environment in which radiated RF distur-

bances are controlled. The customer or user of the Xcel 255 can help prevent electromagnetic

interference by maintaining a minimum distance between portable and mobile RF Communi-

cations Equipment (transmitters) and the Xcel 255 as recommended below, according to the

maximum output power of the communications equipment.

Max Output Power

of Transmitter

(W)

Separation (m)

150kHz to 80 MHz

d=(3.5/V1)(Sqrt P)

Separation (m)

80 to 800 MHz

d=(3.5/E1)(Sqrt P)

Separation (m)

800MHz to 2.5GHz

d=(7/E1)(Sqrt P)

0.01 0.1166 0.1166 0.2333

0.1 0.3689 0.3689 0.7378

1 1.1666 1.1666 2.3333

10 3.6893 3.6893 7.3786

100 11.6666 11.6666 23.3333

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reectionfromstructures,objects,andpeople.

Guidance Tables (continued)

Ametek Reichert XCEL 255 User Manual

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