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Surveillance and Spy Satellite Frequencies
(Mostly Wideband Spread Spectrum/LPI channels)


	 220 MHz -  450 MHz 
	 1.2 GHz -  1.4 GHz
	 1.7 GHz -  1.9 GHz (1.76-1.84 active)
	 1.9 GHz -  2.2 GHz (2.115 active)
	 4.9 GHz -  5.0 GHz  
	 5.5 GHz -  8.8 GHz  
	10.6 GHz - 12.8 GHz (11.7-12.2 active)
	17.8 GHz - 22.5 GHz (Low Orbit SIGINT/IMINT Birds)
	
	23.6 GHz - 24.0 GHz (Low Orbit SIGINT/IMINT Birds)
	25.5 GHz - 25.7 GHz (Low Orbit SIGINT/IMINT Birds)
	22.8 GHz - 33.5 GHz (SIGINT Birds)
	42.5 GHz - 47.0 GHz (High Orbit SIGINT/IMINT Birds)
	50.3 GHz - 52.4 GHz (High Orbit SIGINT/IMINT Birds)
	78.0 GHz - 85.5 GHz (High Orbit SIGINT/IMINT Birds)
	86.3 GHz - 98.3 GHz (High Orbit SIGINT/IMINT Birds)

also, 95 - 275 GHz is also used for government surveillance applications and operations, however; the usage is fairly limited.

Note: Surveillance satellite can be anywhere between 200 MHz and 325 GHz, mostly spread spectrum.


Advanced TSCM Signals Detection and Analysis
TSCM - Sweeping the Spectrum for Eavesdropping Devices

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