GM2100 (R&S)
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|---|---|
| Frequencies | 3 MHz,30 MHz |
| Frequency Range | 3 MHz - 30 MHz |
| Mode | USB |
| Modulation | PSK |
| ACF | 133.3 ms |
| Emission Designator | — |
| Bandwidth | 3 kHz |
| Location | Europe |
| Short Description | This is the proprietary HF Data Signal Protocol for the Rohde & Schwarz HF Modem GM2100. |
| I/Q Raw Recording | — |
| Audio Sample | |
This is the proprietary HFHigh Frequency (3-30 MHz) Data Signal Protocol for the Rohde & Schwarz HFHigh Frequency (3-30 MHz) Modem GM2100. The modem itself supports three data modes, this special R&H data format, STANAG 4285, and MIL-STD-188-110.
Characteristics[edit]
This R&S signal format is compatible with those of data modems GM857C4 and GM2000. For GM2100 it was optimized to give data rates between 900 and 5400 bit/sBits per second (bps).
It uses 2PSKBinary Phase-Shift Keying (1 bit per symbol), 4PSKQuadrature Phase-Shift Keying (2 bits per symbol), and 8PSK8-Phase Phase-Shift Keying (3 bits per symbol) modulation. Each frame is 320 symbols, and ACFAutoCorrelation Function is 133.33 msmilliseconds (.001 of a second). Every frame is made up of 5 data subframes of 64 symbols (26.66 msmilliseconds (.001 of a second)).
Samples[edit]
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