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FCC Emission Designators

Bandwidth Modulation Type Of The Main Carrier Nature Of Signal Modulating The Main Carrier Type Of Information To Be Transmitted
Definition Code Definition Code Definition Code Definition
# In KHZ followed by K A Double Side Band 0 No Modulating Carrier A Telegraphy For Aural Reception
B Independent Side Bands 1 Single Channel Quantizized Or Digital Information, Without The Use Of A Modulating Subcarrier Excluding Time - Division Multiplex B Telegraphy For Automatic Reception
C Vestigial Side Band 2 Single Channel Containing Quantizized Or Digital Information With The Use Of A Modulating Subcarrier Excluding Time - Division Multiples C Facsimile
D Carrier Is Amplitude And Angle Modulated Either Simultaneously Or A Pre-Established Sequence 3 Analog Information D Data Transmission, Telemetry, Telecommand
F Frequency Modulation 7 Two Or More Channels Containing Quantizized Or Digital Information E Telephony
G Phase Modulation 8 Two Or More Channels Containing Analog Information F Television (Video)
H Single Side Band Full Carrier 9 Composite System. One Or More Channels Containing Quantizized Or Digital Information, With One Or More Channels Containing Analog Information N No Information Transmitted
J Single Side Band Suppressed Carrier X Cases Not Otherwise Covered W Combination Of Any.
K Pulses Modulated In Amplitude X Cases Not Otherwise Specified
L Pulses Modulated In Width / Duration
M Pulses Modulated In Position / Phase
N Unmodulated Carrier
P Sequence Of Unmodulated Pulses
Q Carrier That Is Angle Modulated During The Period Of The Pulse
R Single Side Band - Reduced Or Variable Level Carrier
V Combination Of Pulses Modulated By Combination Or By Other Means
W Carrier Modulated Simultaneously Or In Pre-Established Sequence, In A Combination Of Two Or More Of The Following, Amplitude, Angle, Pulse
X Not Otherwise Covered