Radar Bands and Wavelengths

World War II Bands

Band Name

Band Frequency

Band Wavelength

VHF

214 – 236 MHz

1.4 to 1.27 meters

P

300 MHz

1 meter

UHF

425-610 MhZ

70.6 to 49.18 cm

L

1250-1380 MhZ

24 to 21.74 cm

S

2700-3900 MHz

11.11 to 7.69 cm

C

5300-5520 MHZ

5.66 to 5.43 cm

X

9,230 – 9,404 MHz

3.25 to 3.19 cm

Ku

16,000 MHz

1.88 cm

Ka

>20,000 MHz

1.5 cm

Q

40,000 MHz

7.5 mm

IEEE Band

Band Name

Band Frequency

Band Wavelength

I Band

0 - 200 MHz

Up to 1.5 meters

G Band

200 - 250 MHz

1.5 to 1.2 meters

P Band

250 - 500 MHz

1.2 meters to 60 cm

L Band

500 - 1,500 MHz

60 to 20 cm

S Band

2,000 - 4,000 MHz

15 to 7.5 cm

C Band

4,000 - 8,000 MHz

7.5 to 3.75 cm

X Band

8,000 - 12,000 MHz

3.75 to 2.5 cm

Ku Band

12,000 - 18,000 MHz

2.5 to 1.67 cm

K Band

18,000 - 26,000 MHz

1.67 to 1.15 cm

Ka Band

26,000 - 40,000 MHz

11.54 to 7.5 mm

V Band

40,000 - 75,000 MHz

7.5mm to 4 mm

W Band

75,000 - 111,000 MHz

4mm to 2.7 mm

NATO Bands
(Modern Radar Bands)

Band Name

Band Frequency

Band Wavelength

A Band

0 - 250 MHz

Up to 1.2 meters

B Band

250 - 500 MHz

1.2 to 0.6 meters

C Band

500 - 1000 MHz

60 to 30 cm

D Band

1,000 - 2,000 MHz

30 to 15 cm

E Band

2,000 - 3,000 MHz

15 to 10 cm

F Band

3,000 - 4,000 MHz

10 to 7.5 cm

G Band

4,000 - 6,000 MHz

7.5 to 5 cm

H Band

6,000 - 8,000 MHz

5 to 3.75 cm

I Band

8,000 - 10,000 MHz

3.75 to 3 cm

J Band

10,000 - 20,000 MH

3 to 1.5 cm

K Band

20,000 - 40,000 MHz

15 to 7.5 mm

L Band

40,000 - 60,000 MHz

7.5 to 5 mm

M Band

60,000 - 100,000 MHz

5 to 3 mm

Computing the Frequency of a Wavelength

Frequency = (C / Wavelength)

Where:

Frequency: Frequency of the wave in hertz (hz).
C: Speed of light.
Wavelength: Length of the wave.

NOTE: Both the speed of light and the wavelength have to be in the same measurement units.

Speed of Light (cee) for Reference

29,979,245,800 cm/sec (3 x 1010 approx)
299,792,458 m/sec (300 x 106 approx)
983,571,056 ft/sec (984 x 106 approx)
327,857,019 yards/sec
299,792.458 kilometers/sec
186,282.397 miles/sec (186 x 103 approx)
161,874.977 nautical miles/sec (186 x 103 approx)


EXAMPLE: What is the frequency of a radar with a 3 centimeter wavelength?

Because our wavelength is centimetric; we must insert the speed of light in centimeters/sec; thus:

(3 x 1010 cm/sec divided by 3 cm) = 10,000,000,000 Hz = 10,000 MHz

The frequency of a 3cm radar is approximately 10,000 MHz. More precise numbers can be found by using the exact speeds instead of approximations.

Computing the Wavelength of a Frequency

Wavelength = (C / Frequency)

Where:

Wavelength: Length of the wave.
C: Speed of light.
Frequency: Frequency of the wave in hertz (hz).

NOTE: Both the speed of light and the wavelength have to be in the same measurement units.

EXAMPLE: What is the Wavelength of a 300 MHz radar in centimeters?

First, we must convert from MHz to Hz:

300 MHz * 1,000,000 = 300,000,000 Hz

Because our wavelength is centimetric; we must insert the speed of light in centimeters/sec; thus:

(3 x 1010 cm/sec divided by 300,000,000 Hz) = 100 cm

The wavelength of a 300 MHz radar is approximately 100 cm. More precise numbers can be found by using the exact speeds instead of approximations.