Table 3
Radar performance at different frequencies

Parameter	L-band	S-band	C-band	X-band	Ku-band
Frequency (GHz)	1.3	3.0	5.5	10.0	16.7
Wavelength (cm)	23.08	10	5.45	3.0	1.8
SNR1(dB) @1,000 km	8.06	0.5	-5	-10.86	-18.4
Range (km)@SNR1 = 0 dB	1,950	1,029	752	535	347
Altitude (km)1	1,532	991	724	516	334
Add SNR (dB)2 @R = 2,000 km	16.6	24.14	29.6	35.5	43

Note 1: Antenna beam elevation is assumed to be 75°.
Note 2: Additional SNR is required to detect target RCS of 1 m² at 2,000 km with threshold SNR of 12.6 dB.