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A17.9.2 Working conditions

A17.9.2 Working conditions

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Longley-Rice model works correct in given frequency ranges, antenna heights, distance, surface refraction, as shown in Table 87.

Table 90: Range of ITM model correctly working

 

Parameter

Range

Frequency

20 MHz – 40 GHz

Antenna height

5 cm – 3 km

Distance

1 – 2 000 km

Surface refraction

250 -400 N

 

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