MILITARY
Radar Distance Calculator
Range · Horizon · Pulse timing · Target detection · Unambiguous range
pulse radar
horizon
Radar parameters
ft
Height above ground/sea level
ft
Target height above ground
µs
Time for pulse to travel to target and back
Hz
Pulse rate (PRF)
Radar formulas
- R = (c × t) / 2 range (two-way time)
- R_hz = 1.22 × (√h_ant + √h_tgt) radar horizon (NM)
- R_max = c / (2 × PRF) max unambiguous range
- PRI = 1 / PRF pulse repetition interval
Target range
9.3
NM
Radar horizon
12.2
NM
Max unambiguous range
81.0
NM
Radar geometry
Radar
Target
Horizon
Signal time: 100 µs
Detection details
Range (km)
17.2
km
Horizon (km)
22.6
km
Unambiguous (km)
150
km
Pulse repetition interval
1.00
ms
Signal timing
two-way
Time of flight
100 µs
Range to target
9.3 NM
Horizon range
12.2 NM