10 - 500 kHz - Most Commonly Used Subcarrier Bugging Frequencies
15 - 150 kHz - Typical Broadcast FM/TV Subcarriers (TV/FMSubC)
0 - 15 kHz - Typical Broadcast FM L+R Signal (Mono)
19 kHz - Typical Broadcast FM Subcarrier - Pilot
23 - 53 kHz - Typical Broadcast FM Subcarrier L-R Signal (Stereo, 38 kHz center)
57 kHz - Typical Broadcast FM Subcarrier - RBDS/EAS
67 kHz - Typical Broadcast FM Subcarrier SCA/Musicast/Musak
92 kHz - Typical Broadcast FM Subcarrier SCA/Musicast/Musak
15 - 105 kHz - Typical Broadcast Television Subcarriers (TVSubC)
0 - 15 kHz - Typical Broadcast TV Audio L+R Signal (Mono)
15.75 kHz - Typical Broadcast TV Subcarrier - Pilot
31.50 kHz - Typical Broadcast TV Subcarrier L-R Signal (Stereo)
62.94 kHz - Typical Broadcast TV Subcarrier - SAP Secondary Audio
102.27 kHz - Typical Broadcast TV Subcarrier - Cue Channel
2 - 10 MHz - Typical Video Component Subcarriers (4.2 - 8 MHz common)
5 kHz - 750 kHz - Realistic Subcarrier Threat (Audio)
5 kHz - 15 MHz - Realistic Subcarrier Threat (Video)
Note: A typical FM broadcast may contain 2 to 12+ subcarrier voice
channels in addition to the main signal, and subcarriers may have
subcarriers.
VLF and Carrier Current Type Bugs
9 kHz - 490 kHz Carrier Current 47 CFR 15.219 Auth (250 mv max.) 490 kHz - 1.705 MHz Lossy Cable 47 CFR 15.221 Auth (1000 mv max.) 450 kHz - 30.00 MHz PLA Systems 47 CFR 15.207 Auth (30 mv@ft/30ft max.) 3 - 200 kHz 300 mw High Grade Pro Bugs (over 500$ each) 100 - 200 kHz 50-100 mw Older VLF Bugs 120 - 200 kHz 30-50 mw Pre 1990 intercoms 200 - 300 kHz 30-50 mw Post 1990 intercoms 300 - 400 kHz 250-450 mw TELCO Line transmitters (355 kHz popular) 300Hz - 30 kHz Cable TV Carrier - Hardwired Microphones (Baseband Audio) 30 kHz -300 kHz Cable TV Carrier - Coaxial Bugs (Wideband Audio/Video) 100 - 450 kHz Threat Window #1 Most CC Bugs 3 kHz - 3 MHz Threat Window #2 Expensive "Pro-Grade" Bugs 5 kHz - 32 MHz Threat Window #3 Popular WJ Carrier Current Rcvr 3 kHz - 50 MHz Threat Window #4 Realistic Threat Window for Telephone Wire 15 MHz - 70 MHz Threat Window #5 Audio/Video "Micro-Wire" RF circuits
VLF Devices
25 kHz - 90 kHz Tape Recorder Bias Osc-Low End (35-45 kHz Common) 80 kHz - 145 kHz Tape Recorder Bias Osc-Mid Range (88.2, 96, 100 kHz Common) 100 kHz - 325 kHz Tape Recorder Bias Osc-Pro Grade (100, 150, 300 kHz Common) 40 kHz - 50 kHz Tape Recorder DAT/Hi8 (44.1/48 kHz Common) 4 kHz - 35 kHz Recorder Audio Servo Noise (10-20 kHz Common) 7 kHz - 35 kHz Video Camera VLF Detectable emissions 15.750 MHz Common NTSC Video Camera 15.734 MHz CCD/PCB Video Camera (very easy to detect) 15.625 MHz Common Video Camera Also, be aware that ultrasonic signals are emitted from most VLF devices. (Utilize a EOD/Bomb Tech Stethoscope, and Spectrum Analyser with an wideband ultrasonic transducer).
WECO Bugs
Boosted/ultrasonic audio coupled to Power, CATV, and Telco lines
64 kbps to 1.5 mbps Digital Bugs T-Carrier-Lo (T-1 and Below) 1.5 mbps to 50 mbps Digital Bugs T-Carrier-Hi (T-1 and T-3) 2.048 mbps Digital Bugs Definity Circuit Pack Bug 32 mbps Digital Bugs TMS Channel/Backplane bridge Designed to transmit QAM on Microwave Spread Spectrum (2.4-9.0 GHz)
VLF Emission and Subcarrier Detection
Common Eavesdropping Frequencies used by Amatuer Eavesdroppers
Professional and Law Enforcement Bugging Frequencies
Surveillance Device "House" Frequencies/Bands
Federal Surveillance Frequencies
Surveillance and Spy Satellite Frequencies
Spread Spectrum and Frequency Hopping Bug Frequencies
Bandwidth Resolutions and Filters
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