La qualità del segnale registrato non era volutamente perfetta in modo da misurare le capacità dei singoli software nel decodificare correttamente i messaggi anche in presenza di rumore o disturbi.
Questo test non ha pretese di avere un livello "scientifico", ma solo quello di comparare i diversi risultati ottenuti nelle mie condizioni di lavoro, utilizzando cioè un computer certamente non di ultima generazione e sul quale alcuni programmi, a causa della loro struttura, avrebbero potuto trovare delle difficoltà a compiere il loro lavoro.
La decodifica è stata ripetuta più volte in modo di avere il miglior risultato possibile.
Questi sono i risultati ottenuti:
- Frisnit Navtex Decoder v215 - In USB decodifica al 95% - In CW decodifica quasi nulla
- Multipsk - Sia in USB che in CW la decodifica è al 100%
- JVComm32 - In USB decodifica al 90% - In CW decodifica al 80%
- SeaTTY - Sia in USB che in CW la decodifica è al 100%
- Yand - In USB decodifica al 99% - In CW decodifica al 80%
Da segnalare una certa difficoltà iniziale nell'agganciare la sincronia da parte di JVComm32 ed in misura minore da Yand.
Qui nel dettaglio i messaggi decodificati:
Modo USB
1 - Frisnit Navtex Decoder v215
R GULF OF GENOA WITH LITTLE CHANGE.
HIGHPRESSUR AROUND 1016 OVER SOUTHWEST OF FRANCE BUILDING A N
AND EXPECTED AROUND QPQIM
EAST OF PROVENCE.
CONTINUING TO 19/00 UTC AT LEAST.
NORTHWEST 8, BACKING WEST IN MORNIN. GUSTS.
WEST OF ROVNCE.
CONTINUING TO 18/00 UTC.
NORTHWEST 8 USTS.
SOUTH OF LIGURE.
2 - Multipsk
GULF OF GENOA WITH LITTLE CHANGE.
HIGH PRESSURE AROUND 1016 OVER SOUTHWEST OF FRANCE BUILDING AT END
AND EXPECTED AROUND 1018.
EAST OF PROVENCE.
CONTINUING TO 19/00 UTC AT LEAST.
NORTHWEST 8, BACKING WEST IN MORNING. GUSTS.
WEST OF PROVENCE.
CONTINUING TO 18/00 UTC.
NORTHWEST 8. GUSTS.
SOUTH OF LIGURE.
3 - JVComm32
HIGH P_EYSURE_ARO_ND_1016 OVER SOU_H_EST OF_FRANCE BUILDING S_ _N____
AND EXPECTED AROUND 1018._
EAST OF PROVENCE.
CONTINUING TO 19/00 UTC AT LEAST.
NORTHWEST 8, BACKING WEST IN MORNING. GUSTS_M
_
WEST _F PROVENCE.
CONTINUING TO 18/00 UTC.
NORTHWEST 8. GUSTS.
SOUTH OF LIGURE.
4 - SeaTTY
GULF OF GENOA WITH LITTLE CHANGE.
HIGH PRESSURE AROUND 1016 OVER SOUTHWEST OF FRANCE BUILDING AT END
AND EXPECTED AROUND 1018.
EAST OF PROVENCE.
CONTINUING TO 19/00 UTC AT LEAST.
NORTHWEST 8, BACKING WEST IN MORNING. GUSTS.
WEST OF PROVENCE.
CONTINUING TO 18/00 UTC.
NORTHWEST 8. GUSTS.
SOUTH OF LIGURE
5 - Yand
{}ULF OF GENOA WITH LITTLE CHANGE.
HIGH PRESSURE AROUND 1016 OVER SOUTHWEST OF FRANCE BUILDING AT END
AND EXPECTED AROUND 1018.
EAST OF PROVENCE.
CONTINUING TO 19/00 UTC AT LEAST.
NORTHWEST 8, BACKING WEST IN MORNING. GUSTS.
WEST OF PROVENCE.
CONTINUING TO 18/00 UTC.
NORTHWEST 8. GUSTS.
SOUTH OF LIGURE.
Modo CW in reverse
1 - Frisnit Navtex Decoder v215
AZQ
FOUCT9/0UCA
ZKPE COKBFZGNE
NNN
ZCZ W38
21RGHMEP
VVMMPUX
ZA
N P 1 FROM PTO3
2 - Multipsk
WESTERLY 8 IN BONIFACIO STRAITS AND VICINITY. SEVERE GUSTS.
ELBE.
FROM 18/15 UTC TO 19/00 UTC AT LEAST.
WEST OR SOUTHWEST 8 NEAR CAPE CORSE, AT TIMES 9. SEVERE GUSTS.
NNNN
ZCZC WL38
121541 UTC SEP 13
AVURNAV TOULON 907/13
PROVENCE
ON 15 SEP 13, FROM 0000Z TO 2359Z
3 - JVComm32
WESTERLY _I IN_B_N_F_CI___T_AI_S _ND V______Y_________
ELBE.
FROM 18/15 UTC TO 19/00 UTC AT LEAST._
WEST OR_S_UTH_EST_8 NEA_ CAPE CORSE, AT TIMES 9. SEVERE GUSTS.
NNNN
ZCZC WL38
121541 UTC SEP 13
AVURNAV TOULON 907/13
PROVENCE
ON 15 SEP 13, FROM 0000Z TO 2359Z,
4 - SeaTTY
WESTERLY 8 IN BONIFACIO STRAITS AND VICINITY. SEVERE GUSTS.
ELBE.
FROM 18/15 UTC TO 19/00 UTC AT LEAST.
WEST OR SOUTHWEST 8 NEAR CAPE CORSE, AT TIMES 9. SEVERE GUSTS.
NNNN
ZCZC WL38
121541 UTC SEP 13
AVURNAV TOULON 907/13
PROVENCE
ON 15 SEP 13, FROM 0000Z TO 2359Z,
5 - Yand
WESTERLY 8 IN [BONIFACIO] ~~~~~{}INITY. ~~V~~~~{}
ELBE.
FROM 18/15 UTC TO 19/00 UTC AT LEAST.
WES~~~~~~{} NEAR CAPE CORSE, AT TIMES 9. SEVERE GUSTS.
NNNN
ZCZC WL38
121541 UTC SEP 13
AVURNAV TOULON 907/13
PROVENCE
ON 15 SEP 13, FROM 0000Z TO 2359Z,
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