Hi, People are using EU VHF if they are in a contest requiring either a serial number and/or the full 6-digit locator. This is required in the major VHF contests in Europe. Many contests on HF also requires a serial number, so this feature applies to more than just EU VHF.
I suggest the labeling on the Settings page is split into two saying: "I need an exchange with serial number" "I need an exchange with a 6-digit locator" When a station calls CQ with one or both of these options set, FT8 of the answering station should just transmit the requested exchange. No need for flashing a anything about a particular contest mode. If you have one or both of these options set and you call a station his FT8 should send you the requested exchange. The logic should be that you request the exchange you need and you get it without intervention from the other station. This should keep all happy and you only transmit the exchanges needed by the other station. This logic should be used for all kind of supported exchanges, e.g. also the one for NA fieldday. It could also work the other way around: if a station does not need your locator - transmit only what the other station requests (though at present the abbreviated 4-digit locator is inherited in the protocol). If a serial number is requested from you and you did not set a starting serial number in your settings, your FT8 should just send 0001. To make sure everyone is able to send the full 6-digit locator this should always be set in Settings. 73, Palle, OZ1RH. - written on a Hawaiian Airlines plane on route to KH8, see kh8.oz0j.dk ----------------------------- > > Message: 3 > Date: Sun, 14 Apr 2019 12:56:50 +0100 > From: Tom Melvin <[email protected]> > To: WSJT software development <[email protected]> > Subject: Re: [wsjt-devel] FT8 DX Contest notices > Message-ID: <[email protected]> > Content-Type: text/plain; charset=windows-1252 > > What I can?t workout is why people are using EU VHF in the 1st place. > > It is not specifically in the rules page as Saku pointed out, but top of > the contest page has a link to FT8 settings, that clearly shows should be > RTTY, the links to MSHV has a big page on contest setup, again says rtty - > wsjt points to manual at contest settings. > > So why are so many people using EU VHF? - Hopefully as you all point out > if it is specified on the same page as the rules it _may_ help. > > Tom > > -- > 73?s > > Tom > GM8MJV (IO85) > > > > > > On 14 Apr 2019, at 09:45, Saku <[email protected]> wrote: > > > Neil Zampella kirjoitti 14.4.2019 klo 6.49: > >> That is something they will need to change if they decide to do another > >> one, declare what contest mode will be used. > >> > >> Neil, KN3ILZ > > > > > > Yes! > > > > I agree! > > > > > > But it is bad thing that wsjt-x switches from RTTY RU to EU VHF > automatic if it detects that kind of answer. > > Backwards it does not do it. It just reminds that mode should be > switched to RTTY RU. But that needs user action via settings/advanced. > > > > > > And EU VHF is, I think, a little tested mode. It is so unstabile. > > I did some UDP message testings a while ago with ft8sim and small > mistakes made wsjt-x crash with EU VHF. Mistakes means pressing wrong > button at wrong time. Sometimes crash kills also whole xwindow (LXDE) at > same go. > > All other modes allow all kind of operations, but EU VHF is very > sensible. Everything must go in right order. > > > > > > -- > > Saku > > OH1KH >
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