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New release (4.6) of MULTIPSK
Patrick Lindecker F6CTE has made available the latest
version of his popular data mode software MULTIPSK 4.6
that now features the BPSK250 mode.
Patrick writes:
The new release of MULTIPSK (4.6) is in my Web site (http://f6cte.
free.fr).
The main mirror site is Earl's, N8KBR: http://multipsk.
eqth.info/ index.html (click on "United States").
Another mirror site is Terry's: http://www.hamshack
.co.uk/
MULTIPSK associated to Clock are freeware programs but with functions
submitted to a licence (by user key).
The main modifications of MULTIPSK 4.6 are the following:
1) Decoding/coding of the BPSK250 / QPSK250 modes.
The BPSK250 and QPSK250 modes derive from BPSK31 / QPSK31 but they are
eight times faster. See specifications further on.
2) ALE and ALE400: transmission of small DTM and DBM messages.
3) Frequency meter function
This frequency meter, integrated to the "Spectrum" function,
measures the frequency of respectively the left input signal and the right
input signal, up to about 20 KHz (only the licensed copies).
4) Fax HF: possibility to modify the shift, from 700 to 1200 Hz.
For information, for all the MULTIPSK exotic modes (PSKFEC31, PSK10, PSKAM,
PSK63F, PSK220F (+DIGISSTV), CCW-FSK, MFSK8, THROBX, DominoF, DominoEX,
PAX, CHIP, Voice, Packet 110 bauds...), I propose the QRP frequency: 14075
Khz USB (AF around 1000 Hz), at 17h00 UTC.
73
Patrick F6CTE
BPSK250 and QPSK250 description:
Baud rate: 250
Speed: 296 wpm in capital letters and 408 wpm in small letters (average)
Bandwidth: about 500 Hz,
Lowest S/N: -2 dB
For the remainder, the characteristics are identical to the ones of BPSK31
/ QPSK31 modes.
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