Coherent BPSK

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Coherent CW | Coherent BPSKBinary Phase-Shift Keying (1 bit per symbol)
Coherent BPSKBinary Phase-Shift Keying (1 bit per symbol)
Coherent PSK.jpg
Frequencies 138 kHzKiloHertz (kHz) 10^3 Hz138,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
0.138 MHzMegaHertz (MHz) 10^6 Hz
,1.881 MHzMegaHertz (MHz) 10^6 Hz1,881,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
1,881 kHzKiloHertz (kHz) 10^3 Hz
,14.081 MHzMegaHertz (MHz) 10^6 Hz14,081,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
14,081 kHzKiloHertz (kHz) 10^3 Hz
,18.081 MHzMegaHertz (MHz) 10^6 Hz18,081,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
18,081 kHzKiloHertz (kHz) 10^3 Hz
138 kHzKiloHertz (kHz) 10^3 Hz
0.138 MHzMegaHertz (MHz) 10^6 Hz
18,081 kHzKiloHertz (kHz) 10^3 Hz
18.081 MHzMegaHertz (MHz) 10^6 Hz
Frequency Range 138 kHzKiloHertz (kHz) 10^3 Hz138,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
0.138 MHzMegaHertz (MHz) 10^6 Hz
- 18.081 MHzMegaHertz (MHz) 10^6 Hz18,081,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
18,081 kHzKiloHertz (kHz) 10^3 Hz
Mode USBUpper Side Band Modulation (Radio, referring to reception and modulation mode)Universal Serial Bus (Computer, referring to USB Ports and cables)
Modulation PSKPhase-Shift Keying
ACF
Bandwidth 200 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).0.2 kHzKiloHertz (kHz) 10^3 Hz
2.0e-4 MHzMegaHertz (MHz) 10^6 Hz
0.2 kHzKiloHertz (kHz) 10^3 Hz
2.0e-4 MHzMegaHertz (MHz) 10^6 Hz
0.2 kHzKiloHertz (kHz) 10^3 Hz
2.0e-4 MHzMegaHertz (MHz) 10^6 Hz
Location Worldwide
Short Description Coherent BPSKBinary Phase-Shift Keying (1 bit per symbol), also known as C-BPSKBinary Phase-Shift Keying (1 bit per symbol), was an experimental amateur mode developed by Bill DeCarle VE2IQ.
I/Q Raw Recording
Audio Sample
Coherent BPSKBinary Phase-Shift Keying (1 bit per symbol), also known as C-BPSKBinary Phase-Shift Keying (1 bit per symbol), was an experimental amateur mode developed by Bill de Carle VE2IQ.


Characteristics[edit]

Coherent BPSKBinary Phase-Shift Keying (1 bit per symbol) is actually DBPSK (Differential BPSKBinary Phase-Shift Keying (1 bit per symbol)) with a user-defined baudBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second. rate. The length of each symbol can be anywhere between 5 msmilliseconds (.001 of a second) to 1000 msmilliseconds (.001 of a second) (200 BdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second. to 1 BdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second.) in 5 msmilliseconds (.001 of a second) increments. Typically, 40 BdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second. (25MS, used in HFHigh Frequency (3-30 MHz) band) and 1 BdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second. (1000MS, used in 130 kHzKiloHertz (kHz) 10^3 Hz experimenters band). are used.

10 bits make an ASCII character (7 data bits, one start bit, two stop bits). For successful reception, 1 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). frequency resolution is required to successfully receive Coherent PSKPhase-Shift Keying.

In addition to baudBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second. rates, there are optional FECForward Error Correction encoding modes to improve robustness. These are named ET1 and ET2, ET short for Extended Table. For ET1, instead of 10 bits per ASCII character, there's 16 bits, and for ET2, 27 bits are used.



Samples[edit]

MS25 (40 BdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second.) with ET1 FECForward Error Correction:

Frequencies[edit]

These were the schedules: 14.081 at 1600z weekdays, 18.081 at 1700z especially on week-ends and 1.881 at 0300z (Mainly USA roundtable).


Decoding Software[edit]

Hobby Level Software
*Both COHERENT and AFRICA are 16-bit DOS applications*

Video Examples[edit]

Additional Links[edit]



Additional Images[edit]