RAC-ARQ
From Signal Identification Wiki
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| Frequencies | 3 MHz,30 MHz |
| Frequency Range | 3 MHz - 30 MHz |
| Mode | USB |
| Modulation | FSK |
| ACF | — |
| Emission Designator | — |
| Bandwidth | 1000 Hz,1.3 kHz |
| Location | Worldwide |
| Short Description | RAC-ARQ, also known as MEROD and RACAL-ARQ, is a teleprinter system by Racal, used in MEROD devices. MEROD stands for Message Entry and Read Out Device. Hasn't been seen since 2010. |
| I/Q Raw Recording | — |
| Audio Sample | |
RAC-ARQAutomatic Repeat reQuestAutomatic Repeat Query, also known as MEROD and RACAL-ARQAutomatic Repeat reQuestAutomatic Repeat Query, is a teleprinter system by Racal, used in MEROD devices. MEROD stands for Message Entry and Read Out Device. Hasn't been seen since 2010.
Characteristics[edit]
RAC-ARQAutomatic Repeat reQuestAutomatic Repeat Query uses FSKFrequency-Shift Keying at 150 BdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second. or 267 BdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second. with a wide shift of 800 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz)..
Samples[edit]
| 266 BdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second. | 150 BdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second. |
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Frequencies[edit]
Additional Links[edit]
- RadioReference.com RAC-ARQ
- shoc Database: MEROD
- Digital Signals FAQ
- Crypto Museum Racal MA-4450 (MEROD)
- Racal MA4480 Message Entry and Read Out Device
- RACAL MEROD Brochure
Additional Images[edit]
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