General Information
Morse code was the first method for data transfer over radio. By now it has been mostly replaced by digital modes.
Usage:
§ Transfer of textual information over HF.
Mode Details
|
|
Item |
Value |
|
Standard |
Modulation |
Carrier keyed on/off |
|
|
Bandwidth (Hz) |
400 |
|
|
Symbol rate (Bd) |
Depending on data-rate |
|
|
Data rate (cpm) |
30 … 300 |
|
Demodulator Settings |
Demodulator |
Morse |
|
|
Range (cpm) |
60…125 |
|
|
Keying rate (cpm) |
250 |
|
|
Tolerance (cpm) |
250 |
|
Features |
Demodulation |
yes |
|
|
Recognition |
yes |
|
|
Decoding |
yes |
|
|
Automatic Polarity Adjustment |
yes |
|
|
Combination with other modems (modem list) |
yes |
|
Tuning |
The tuning frequency is the center of the signal | |
Table 144: Morse
Figure 50: Morse Spectrogram