Signal Signature Identification
TSCM (Technical Surveillance Counter-Measures) is the abbreviation denoting the process of bug-sweeping or electronic counter-surveillance. It is related to ELINT, SIGINT and electronic countermeasures (ECM).
Kestrel TSCM Signal Library
Basic Frequency Allocations
Siganl Identification Guide
MeteGeek Common Signatures
MetaGeek Out-of-Band Interference and Noise Floors Sigantures
MetaGeek Interface Identification Guide