Radio range variables

SINCGARS planning ranges (general guidelines). List below: antenna type, terrain transmitted over and manmade noise cause variations in ranges given.

Power Voice Data
Lo 200-400m  
Med 400m-5km  
Hi 5-10km 3-5km@600-4,800 bps
1-3km@16 kbps
PA 10-40km 3-10km@16 kbps
5-22km@4,800 bps
5-25km@600-2,400 bps
    Enhanced data mode
Hi   5-10km@1,200N-2,400N
5-10km@4,800N
5-10km@9,600N
PA   20-35km@1,200N-2,400N
15-25km@4,800N/packet
10-25km@9,600N

Why is there a large variance in ranges?

Antenna type

Manpack (five-10 km)
Vehicle whip (10-40 km)
OE-254 (40-50 km)

Terrain

Vegetation
Soil conductivity
Blocking terrain

Manmade noise

Adjacent to power cables
Antenna cables close to generators

dividing rule

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04/04/12

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