Also you sent a very interesting response!...
Sure the best way to indicate a multislot normal operation is the use of the ODD timeslot to indicate that they are NOT using FT8 DX mode. BUT, as you said, most users don’t know that feature of the FT8 DX mode and even less the Spmsg meaning.I confess that I don't know what Spmsg is and I would like to understand it.😁
Regarding the F/H specific management of the frequencies and timing, I have a better idea how it works and I know that this process is governed internally by the WSJT-X software.
Best regards,
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73 de Marco, PY1ZRJ (former IK5BCU)
Il 19/02/22 07:33, Reino Talarmo via wsjt-devel ha scritto:
Hi Michael, Marco and all
I know that this is not a wsjt-x development issue at all and should not be discussed on this list, but may I present my observations.
I got the opportunity to work 3X2021 with my contest call ov9a. And as you can see at the picture I worked him in WSJTX Normal mode beacuse there not TX'ed any Spmsg from him at any time. And it all worked as surpposedt.
The Spmsg as such may or may not affect to wsjt-x normal mode auto sequencer behavior and an operator may need manually log the QSO.
By the was way the TU5PCT Dxpedition was not using WSJT-X but MSHV software in FOX Look a Like Mode and what I call a Pseudo FOX Mode.
I would not call it as a “Pseudo FOX Mode” at all as there is no “Hound” related frequency jumping behavior assumed or needed. It is simply a multislot transmission.
The Z22O team are also using the MSHV software. In the beginning of the DXpedition they was TX'ing ODD (15/45) with spmsg ON and that made WSJT-X going bananas because people thought it was a FOX due to the Spmsg and then put their WSJT-X in Hound Mode. But when WSJT-X is in Hound Mode it will only TX ODD (15/45). So all the WSJT-X users were TX'ing on the same timeslot as Z22O. What a mess. Lately they are only TX'ing EVEN (00/30) as a normal FOX but sometimes they don't have Spmsg ON and then it ain't a FOX or Pseudo FOX.
Sure the best way to indicate a multislot normal operation is the use of the ODD timeslot to indicate that they are NOT using FT8 DX mode. BUT, as you said, most users don’t know that feature of the FT8 DX mode and even less the Spmsg meaning.
I wish people would use 4-5 minuttes looking at their screen B4 hitting the TX and make a Spot on the DX-Cluster.......😁
Agreed!
There could be another “protocol” for a multislot operation, where the DX station uses audio frequencies above say 2000 Hz and listens only below that. That would also minimize possible intermodulation signal above their transmission, when a TX filter is used as normally in most SSB rigs. Even the Spmsg, could be used, if normal FT8 supports it.
Of course this will be a new mess before operators learn how the DX station is using split. For sure that needs clearly stated beforehand, hi! On the other hand most unintended interference will be above the DX station.
Well, it may not prevent wrong spottings as spotters will report a 2k higher frequency.
My 2 cents.
73, Reino OH3mA
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