| 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 |
|
|
|
|
