Israeli Navy Hybrid Modem (188-110 MOD)

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Israeli Navy Hybrid Modem (188-110 MOD)
Mil Mod Israeli.jpg
Frequencies 3 MHz,30 MHz
Frequency Range 3 MHz - 30 MHz
Mode USB
Modulation PSK
ACF MIL-STD body: 66.6 ms
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)
Hybrid Israeli MIL STD 188 110 Serial QPSK.jpg
4 tone Lsraeli hybrid.jpg

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