Israeli Navy Hybrid Modem (188-110 MOD)
From Signal Identification Wiki
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|---|---|
| Frequencies | 3 MHz,30 MHz |
| Frequency Range | 3 MHz - 30 MHz |
| Mode | USB |
| Modulation | PSK |
| ACF | MIL-STD body: 66.6 ms |
| Emission Designator | — |
| Bandwidth | 2.75 kHz |
| Location | Israel |
| Short Description | The Israeli Naval Hybrid Modem is based on the MIL-STD-188-110 Serial Standard. Has characteristic preamble with 4/6 Tone and 18 QPSK parallel mode before 110 Serial transmission. Possible use as a broadcast transmitter for ships. Used by the Israeli Navy 4XZ station from Haifa. |
| I/Q Raw Recording | — |
| Audio Sample | |
The Israeli Naval Hybrid Modem is based on the MIL-STD-188-110 Serial Standard. Has characteristic preamble with 4/6 Tone and 18 QPSKQuadrature Phase-Shift Keying (2 bits per symbol) parallel mode before 110 Serial transmission. Possible use as a broadcast transmitter for ships. Used by the Israeli Navy 4XZ station from Haifa.
Variations of this hybrid modem have been seen. Some start with 6 tones, others start with 4 tones. Furthermore, some have a single short 1000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). tone right before the 4/6 tone preamble with a length of 233ms.
Samples[edit]
| 6 Tone Preamble | 4 Tone Preamble (with add tone) |
|---|---|
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Additional Samples[edit]
Decoding Software[edit]
- Professional Equipment/Software
Video Examples[edit]
Additional Links[edit]
- WAVECOM Database: MIL-188-110A-MOD
- i-56578 swl Israeli Navy HF Modem & datalink protocol
- Military Standard: Interoperability and Performance Standards for Data Modems MIL-STD-188-110A
- Department of Defense Interface Standard: Interoperability and Performance Standards for Data Modems MIL-STD-188-110B
- Department of Defense Interface Standard: Interoperability and Performance Standards for Data Modems MIL-STD-188-110C W/ CHANGE 1
Additional Images[edit]
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