Auteur Sujet: FT8-Simulation du mode DXpedition  (Lu 2190 fois)

Hors ligne VE2PID Pierre

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FT8-Simulation du mode DXpedition
« le: 03 Mars 2018, 12:19:45 »
Message de K1JT le 3 Mars 2018 8h55 AM. Test public et simulation du mode FT8 DXpedition:

Hi all,

I write to remind you of the public test of *FT8 DXpedition Mode* scheduled for March 6-7. The more participants, the better! The main goal is to simulate pileups in which many "Hounds" call and attempt to work a desirable rare DX station, the "Fox", and to maximize the resulting QSO rate. We hope you can be there and work each of our Foxes on each band.

All participating stations must use program version WSJT-X v1.9.0-rc2.If you don't yet have it, download links are available here:

Detailed instructions for Fox and Hound stations are posted here:

It's important to read and follow these instructions carefully! Don't just try to wing it.

Each hour during the test has a designated frequency and Fox callsign, "Fox_A" in the following table.

Date UTC Freq Fox_A Fox_B NSlots
Mar 6 2300 14.080 K1JT W7/KH7Z 3
Mar 7 0000 10.141 W1/KH7Z K9AN 5
Mar 7 0100 7.080 W7/KH7Z K1JT 4
Mar 7 0200 3.585 K9AN W1/KH7Z 3

As you will know after reading the FT8 DXpedition Mode User Guide, Fox can conduct up to "NSlots" QSOs simultaneously. W7/KH7Z will be operated by AA7A, and W1/KH7Z by N1DG.

Fox_A will operate for the full hour if plenty of Hounds keep calling. Fox_B is on standby reserve. If the QSO rate for Fox_A approaches zero at the half-hour mark, Fox_A will stop transmitting and Fox_B will call CQ.

If you (as a Hound) can legitimately use more than one callsign -- your spouse's call, club call, etc. -- please try to work each Fox multiple times. No dupe QSOs with the same call and same band, though.

Real-time liaison will be available via the "Ping Jockey Relief" chat page (PJB), . Everyone should monitor this page for possible announcements of frequency changes or switch-overs from Fox_A to Fox_B. To ensure that announcements from Fox stations are easily visible, Hounds should monitor PJB but not post messages there during the test.

The deepest pileups will help us to tune the final-release software version for optimum performance on both Fox and Hound sides. After the test, please post any comments you feel will be helpful to one of our two email forums, or wsjt-devel@... . You will need to be subscribed to the list in order to post there.

We sincerely hope you can join us for this test, working each Fox on each band!

-- 73, Joe, K1JT (for the WSJT Development Group)
« Modifié: 03 Mars 2018, 21:55:30 par VE2PID Pierre »

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Re : FT8-Simulation du mode DXpedition
« Réponse #1 le: 04 Avril 2018, 09:23:10 »
... de l'ARRL et de Joe Taylor K1JT: Seconde répétition générale du mode FT8 "mouture DXpedition" programmée pour le 7 avril 2018 ...
La documentation a été modifiée donc à relire.

Lien: Second Test of FT8 DXpedition Mode Set for April 7 2018