F band

F band

NATO F band
Frequency range	3 – 4 GHz
Wavelength range	10 cm – 7.5 cm
Related bands	S (IEEE) SHF (ITU)
Waveguide F band
Frequency range	90 – 140 GHz
Wavelength range	3.33 – 2.14 mm
Related bands	W / mm (IEEE) EHF (ITU)

NATO F band

The NATO F band is the obsolete designation given to the radio frequencies from 3 000 to 4 000 MHz (equivalent to wavelengths between 10 and 7.5 cm) during the cold war period. Since 1992 frequency allocations, allotment and assignments are in line to NATO Joint Civil/Military Frequency Agreement (NJFA). However, in order to identify military radio spectrum requirements, e.g. for crises management planning, training, Electronic warfare activities, or in military operations, this system is still in use.

NATO Radio spectrum designation
LATEST SYSTEM			ALTERNATIVE SYSTEM
BAND	FREQUENCY (MHz)		BAND	FREQUENCY (MHz)
A	0 – 250		I	100 – 150
B	250 – 500		G	150 – 225
C	500 – 1 000		P	225 – 390
D	1 000 – 2 000		L	390 – 1 550
E	2 000 – 3 000		S	1 550 – 3 900
F	3 000 – 4 000		C	3 900 – 6 200
G	4 000 – 6 000		X	6 200 – 10 900
H	6 000 – 8 000		K	10 900 – 36 000
I	8 000 – 10 000		Ku	10 900 – 20 000
J	10 000 – 20 000		Ka	20 000 – 36 000
K	20 000 – 40 000		Q	36 000 – 46 000
L	40 000 – 60 000		V	46 000 – 56 000
M	60 000 – 100 000		W	56 000 – 100 000

Waveguide F band

The waveguide F band is the range of radio frequencies from 90 GHz to 140 GHz in the electromagnetic spectrum, corresponding to the recommended frequency band of operation of WR8 waveguides. These frequencies are equivalent to wave lengths between 3.33 mm and 2.14 mm. The E band is in the EHF range of the radio spectrum.