Descriptions of the digimodes and protocoles offered in  MULTIPSK by Patrick F6CTE

The last release of the software MULTIPSK is available from the site of his author Patrick F6CTE.

There is a Yahoo group  "multipsk " on the web. Please use it if you have questions about the software MULTIPSK.

I write this page and the others about descriptions of the modes from the documentation of the release 3.12 after obtainment of the authorization from Patrick F6CTE . I thank him here. You can find a translation in French oh this page here.

Pascal BIMAS F1ULT

LIST

You will find below the list of the available modes in MULTIPSK with a decription with often a screen save of the signal corresponding as well as an audio sample.

PSK Modes :

- BPSK31 and QPSK31

- BPSK63 and QPSK63
- BPSK125 and QPSK125

- PSK10
- PSKFEC31

- MT63 (the MT63 is a PSK mode or rather MPSK meaning Multi PSK)
- CHIP 64 and 128

Others reliable PSK modes which are able to send and receive pictures in DIGISSTV :

- PSK63F

- PSK220F

Morse Modes :

- CW (MORSE) in OOK

- CCW (CW cohérente) in OOK

FSK Modes :

- RTTY
- ASCII
- AMTOR
- NAVTEX System (for information as it is AMTOR)
- PACKET (AX25)
- APRS protocol
- PACTOR 1
- 1382
- GMDSS

MFSK Modes

- THROB and THROBX
- MFSK16 and MFSK8
- OLIVIA
- CONTESTIA and RTTYM
- VOICE
- DOMINO DF ("mode by DeFault")
- PAX and PAX2
- MIL-STD-188-141A ("141A") + Unproto + ARQ FAE+ALE400 
- DMTF

Hellschreiber Modes :

- FELD HELL in OOK
- PSK HELL in PSK
- FM HELL in MSK
- HELL 80 in FSK

FSK and MFSK Modes for transmission of picture :

- SSTV
- HF FAX

IMPORTANT: all the minimum signal-to-noise ratios are given for 2% of error obtained from a sequence of "8" symbols. The noise power is normalized on a 3 Khz bandwidth. The signal power is a mean power and not a peak power. As the ratio between mean power and peak power ("Pmean/Ppeak") is given, it is easy to deduce the peak power-to-noise ratio.

Used Frequencies

The following is a list of recommended frequencies (in Khz) used by the modes of MULTIPSK, for the LF, HF, VHF bands (based on IARU region 1).

BPSK31, QPSK31 (USB), BPSK125 and QPSK125 (USB)
1838, 3580, 7035, 10140, 14070, 18100, 21080, 24920, 28070, 28120, 50000, 144000 (144605 in France and 144144 in Italy).

PSK10, PSKFEC31, PSK63F +DIGISSTV "Run", PSKAM10/31/50 (USB)

These modes (out of PSK220F) are QRP transmissions and they are used very little, Patrick F6CTE proposes to focus calls at the following frequencies and times :

* 14075 Khz USB (AF around 1000 Hz) at 17h00 UTC,
* 10148 kHz. USB (AF around 1000 Hz) at 22h00 UTC.
* 144620 kHz. USB (AF around 1000 Hz) at 20h00 UTC.

A CW prefix, at 12 or 20 wpm, indicating mode, software and power used, for example: "VVV DE F6CTE / MODE PSKFEC31 / SOFT MULTIPSK / PWR: 5 WATTS" could be transmitted before the CQ call itself.

PSK220F +DIGISSTV "Run" (USB)
Patrick F6CTE proposes to focus calls at the following frequencies and times :

* 14075 Khz (AF around 1000 Hz), at 17h00 UTC if few traffic,
* 10148 kHz (AF around 1000 Hz), at 22h00 UTC if few traffic,
* 144620 kHz (AF around 1000 Hz), at 20h00 UTC if few traffic.

BPSK63 et QPSK63 (USB)
14072,5 - 14080 Khz. It is recommended to use fixed frequencies multiple of 100 Hz : 14072,5, 14072,6, 14072,7... For that, the user sets his transceiver on 14072 Khz in USB and operates on 500, 600, 700,..., 2400 or 2500 Hz...on the spectrum indicator.

CHIP (64/128) (USB)

7090 (for USA), 14077 and 14110 KHz

CW
135,7-137,8, 1810-1838, 3500-3580, 7000-7035, 10100-10140, 14000-14070, 18068-18100, 21000-21080, 21120-21149, 24890-24920, 28000-28050, 28150-28190, 50000-50100, 144000-144150 (call on 144050 or 144060)

CCW(-OOK) (USB)
For CCW which is a mode close to CW, the following frequencies are suggested :
1844, 3561, 7031, 10107, 14061, 21061, 24907, 28061 Khz (QRP frequencies + 1KHz).

CCW-FSK (USB)
The following frequencies are suggested:
3590, 7043, 10143, 14075 Khz (CQ calls in 24 wpm).

For North America, it is proposed:
3575, 7075, 10137, 14075, 18105, 21075, 24905, 28075 Khz.

MFSK16, MFSK8, THROB, THROBX, DOMINO (USB)
1838, 3580, 7037, 10147, 14080, 18105, 21080, 24929, 28080 Khz
Note: for SSTV in MFSK16, in general, it is not authorized to transmit a mix of text and pictures because the authorized frequencies, for these modes (MFSK16 / SSTV), are different.

The MFSK8, DominoF, DominoEX and THROBX modes are QRP transmissions. They are very little used. Patrick F6CTE proposes to focus calls in the same conditions as for PSK10, PSKFEC31, PSK63F, PSKAM10/31/50 modes (see above).

OLIVIA (USB)
With an AF frequency of 1000 Hz, frequency displayed on the transceiver:
7038,5, 14104,5, 14105,5, 14106,5, 14107,5, 14108,5 (call frequency), 18102,5, 18103,5, 18104,5, 21129,5 KHz
.
See DK4ZC text : Commands and use of the Olivia modes in Help file of MULTIPSK


PAX (USB in HF, FM in VHF)
The following frequencies are suggested:

3590, 7042, 10148, 14075, 144620 Khz.

Patrick F6CTE proposes to focus calls at the following frequencies and times :

* 14075 Khz (AF around 1000 Hz), at 17h00 UTC if few traffic,
* 10148 kHz (AF around 1000 Hz), at 22h00 UTC if few traffic,
* 144620 kHz (AF around 1000 Hz), at 20h00 UTC if few traffic.

PAX2 (USB en HF, FM en VHF)
The following frequencies are suggested:

3610, 7042, 14112, 18112, 21112, 24932, 28302, 144620 Khz.

MT63 (USB)
1822, 1838, 3580, 3590, 3635, 7035, 7037, 10140, 10145, 14106, 14109, 14114, 18100, 18105, 21130, 24925, 28130 Khz

RTTY 45 bauds (50 and 75 bauds) (Ham), ASCII 110 bauds (Ham) et PACTOR 1 (USB)
1838-1842, 3580-3600, 7035-7045, 10140-10150, 14070-14099, 18100-18109, 21080-21120, 24920-24929, 28050-28150, 50100-50500, 144600, 144800-144990

RTTY 50 bauds (commercial) (LSB, examples)
85 Hz shift: DDH47 (20 kW) on 147,3 KHz

avec des transmissions SYNOP:
Shift de 450 Hz: DDK2 (1 kW) sur 4583 KHz, DDH7 (1 kW) sur 7646 KHz et DDK9 (10 kW) sur 10100,8 Khz

RTTY 75 bauds (commercial) (LSB, exemple)
Shift de 425 Hz: Bracknell meteo sur 4489 KHz

AMTOR ARQ ou FEC (OM) (USB, quelquefois LSB)
Same frequencies as for  RTTY 45 bauds (Ham), in particular around 14075 KHz.

SITOR A (ARQ) or SITOR B (FEC) (commercial) (USB, examples)
4210-4218, 6314-6329, 12579-12646

NAVTEX (commercial) (USB, examples)

The NAVTEX frequencies are 518 et 490 Khz. The user will set his transceiver on USB at 517 or 489 Khz. The transmissions are done at fixed time, for example for NITON (GB): 7h00 and 19h00 UTC on 518 Khz in English, 5h20 and 17h20 on 490 Khz in English, 7h10 and 19h10 on 490 Khz in French.

PACKET 300 bauds + APRS + DIGISSTV "Run" (USB)
3590-3600 (QSO), 10150 LSB (APRS), 14090-14099 (QSO), 14101-14112 (BBS), 14105 (APRS), 18102 (APRS), 21100-21120 (QSO), 21113 (APRS), 28120-28150 KHz (QSO)
For the pictures transmission in DIGISSTV, Patrick F6CTE proposes to focus calls on 14090 Khz USB (AF around 1000 Hz), at 17h00 UTC if few traffic.

PACKET 1200 bauds + APRS + DIGISSTV "Run" (FM)
29250 (APRS), 144800 (APRS)
BBS can be found around 145000 Khz (QRG examples: 144900, 144925 and 144950 KHz).
For the pictures transmission in DIGISSTV, Patrick F6CTE proposes to focus calls on 144630 kHz at 20h00 UTC if few traffic.

FELD HELL, PSK HELL, FM HELL and HELL 80 (USB)

3580, 7035, 10135, 14063, 21063 and 28063 KHz

SSTV
3730 (LSB), 7035 (LSB), 14230 (USB), 21340 (USB), 28680 (USB), 144500 (FM)

HF Fax (Ham) (USB)
3730-3740, 7035-7045, 14230, 21340, 28680, 50550, 144700

3730-3740, 7035-7045, 14230, 21340, 28680, 50550, 144700 KHz

U.S. hams are allowed image transmission on 80 m from 3750 kHz and up, 7150 kHz and up for 40 meters, and 21200 khz and up, commensurate with the license class: Extra Class = 14150 kHz and up ; Advance Class = 14175 kHz and up ; General Clas = 14225 kHz and up  - (Dave N4EF info).

Hf Fax (commercial) (USB, 120 lpm, examples)
Hambourg Meteo: 3855, 7880, 13882.5 Khz
Bracknell Meteo: 2618.5, 3289.5, 4610, 4782, 8040, 9203, 11086.5, 14436, 14582.5 Khz
RN London: 2374, 4307, 6446, 8331.5, 12844.5, 16912 KHz
NMG New Orleans, LA 8503 kHz