# MD-522

MD-522 (Also known as MIL-M-55529A) is a synchronous FSKFrequency-Shift Keying mode built into GRC-MD522 teletypewriter sets and used for wirelessly transmitting ASCII information. MD-522 has a narrowband, wideband, and diversity mode. MD-552 uses the same general modulation type as MD-674.

The narrowband mode uses a shift of 85 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). centered at 2805 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). and with speeds of 50 BdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second., 75 BdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second., 100 BdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second., and 110 BdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second.. The wideband mode had the same features as narrowband, but the shift is 850 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). and is centered at 2000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz)..

The Diversity mode uses two narrowband 85 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). signals, one at 2805 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). and at 425 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz)..

## Sample[edit]

100 BdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second. NB | 100 BdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second. Diversity |
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## Frequencies[edit]

## Decoding Tutorials[edit]

## Decoding Software[edit]

- Professional Equipment/Software

- go2DECODE
- go2MONITOR
- Krypto500
- Wavecom W-Code
- Wavecom W-Spectra