FEC-A
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| Frequencies | 3 MHz,30 MHz |
| Frequency Range | 3 MHz - 30 MHz |
| Mode | USB |
| Modulation | FSK |
| ACF | — |
| Emission Designator | — |
| Bandwidth | 100 Hz,1.2 kHz |
| Location | Worldwide |
| Short Description | FEC-A, also known as FEC-100 or FEC-100A, is a synchronous simplex ARQ system that uses the ITA 2 alphabet. This mode was once used by many embassies, diplomatic services, and news agencies worldwide. This mode was developed by Siemens. |
| I/Q Raw Recording | — |
| Audio Sample | |
FECForward Error Correction-A, also known as FECForward Error Correction-100 or FECForward Error Correction-100A, is a synchronous simplex ARQAutomatic Repeat reQuestAutomatic Repeat Query system that uses the ITA 2 alphabet. This mode was once used by many embassies, diplomatic services, and news agencies, including Turkish, German, French, Nigerian, and Serbian. This mode was developed by Siemens.
Users that have used FECForward Error Correction-A:
- Turkish and German Press
- French (P6z) Diplo Services
- Serbian (DFZG) Diplo Services
- Turkish (TAD) Diplo Services
FECForward Error Correction-A has shifts of 85 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz)., 200 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz)., 400 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz)., and 850 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).. FECForward Error Correction-A has speeds of 96 BdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second., 144 BdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second., 192 BdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second., and 288 BdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second.. It was once reported that MFA Paris and French Embassy in Romania used a 2x192 BdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second. speed of 384 BdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second..
FECForward Error Correction-A uses a convolutional error correction scheme based on data bits being read into a shift register, the length of which may be changed. Values of 72 and 128 bits are common.
Samples[edit]
| 144 BdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second. 850 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). |
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| 96 BdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second. 400 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). | 144 BdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second. 400 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). | 192 BdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second. 400 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). |
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| 144 BdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second. 400 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). Idle |
192 BdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second. 400 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). Idle |
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Video Examples[edit]
Decoding Software[edit]
- Hobby Level Software
- Professional Equipment/Software
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