General Information
MIL-STD-188-110B-16Tone is a parallel mode which uses 16 subcarrier tones in the audio frequency band with differential phase shift keying (DPSK) modulation for bit synchronous data transmission. The modulation rate of the modulator output is constant for all data rates. The system supports data rates of 75 to 2400 bps.
Usage:
§ Data communication over HF between departments and agencies of the MOD.
Mode Details
|
|
Item |
Value |
|
Standard |
Modulation |
DPSK |
|
|
Number of tones |
16 |
|
|
Bandwidth (Hz) |
2500 |
|
|
Symbol rate (Bd) |
75 |
|
|
Data rate (bit/s) |
75 … 2400 |
|
Demodulator Settings |
Demodulator |
MDPSK 2,4,8,16 A/B |
|
|
Symbol rate (Bd) |
75 |
|
|
SR tolerance (Bd) |
1 |
|
|
Modulation order |
4 |
|
|
Version |
B |
|
|
No. of channels |
16 |
|
|
Channel position type |
Channel distance |
|
|
Channel distance (Hz) |
110 |
|
|
Min. burst length (s) |
0.100 |
|
|
Max. burst length (s) |
1.000 |
|
|
Min. pause length (s) |
0.100 |
|
|
0 | |
|
Features |
Demodulation |
yes |
|
|
Recognition |
yes |
|
|
Decoding |
yes |
|
|
Automatic Polarity Adjustment |
no |
|
|
Combination with other modems (modem list) |
yes |
|
Tuning |
The tuning frequency is the center of the signal’s frequency range | |
Table 13: MIL-STD-188-110B 16Tone
Figure 15: MIL-STD-188-110B 16Tone Spectrogram
Modem Version History
|
Release |
Date |
History |
|
2.1.0 |
2013-07-31 |
Modem added |