Attribute: Estimated range of transmission
Attribute type: F
The estimated range of a non-optical electromagnetic transmission.
Minimum Value: 0
INT 1: none specified;
M-4: none specified;
Unit: nautical mile (M)
45 for a range of 45 nautical miles.
The estimated range (distance) assumes 'in vacuo' transmission and a standard antenna height of 5 metres. Thus it gives a hint to the mariner whether he is likely to receive transmission at a certain distance from an object carrying this attribute.