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Good Luck Don KA9QJG/R 444.750 All Mot Micor
 
Bandwidth
This is the required bandwidth of the transmitter.
The above example represents "16.0kHz bandwidth".
The decimal point is replaced with "H", "K", "M", or "G".
These define as:
H = Hertz
K = Kilohertz
M = Megahertz
G = Gigahertz
 
1st Digit
A = AM (Amplitude Modulation), double-sideband
B = AM, independent sidebands
C = AM, vestigial sideband
D = Amplitude and Angle Modulated carrier
F = Angle Modulated, frequency modulation
G = Angle Modulated, phase modulation
H = AM, single-sideband, full carrier
J = AM, single-sideband, suppressed carrier
K = Pulse, amplitude modulation (PAM, PSM)
L = Pulse, width modulation (PWM)
M = Pulse, phase or position modulation (PPM)
N = Emission of an unmodulated carrier
P = Pulse, no modulation
Q = Pulse, carrier also angle-modulated during pulse
R = AM, single-sideband, reduced or variable level carrier
W = Pulse, two or more modes used
X = All cases not covered above
 
2nd Digit
0 = No Modulation
1 = Digital, on-off or quantized, no modulation
2 = Digital, with modulation
3 = Single analog channel
7 = Two or more digital channels
8 = Two or more analog channels
9 = Composite, one or more digital channel, one or more analog
X = All cases not covered above
 
3rd Digit
A = Aural telegraphy, for people (Morse code)
B = Telegraphy for machine copy (RTTY, fast Morse)
C = Analog fax
D = Data, telemetry, telecommand
E = Telephony, voice, sound broadcasting
F = Video, television
N = No Information
W = Combinations of the above
X = All cases not covered above








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