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Datalink tuning behavior: Tuning both PRI and STBY, invalid frequency, sync with EUFD


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Posted (edited)

Sorry to be posting about our favorite topic again 😞

I've been having some issues with the Datalink recently. I think there could be some display or data logic bugs here.

On the Caucasus cold-start mission, VHF PRE1 has an invalid VHF SC frequency of 263.000, which you are allowed to tune to. Tuning PRI seems to tune both PRI and STBY at the same time.

Swapping PRI and STBY also has some strange behavior if one of the frequencies is associated with a link. I'm not sure whether this is intended behavior or I need to re-read the manual or re-watch the videos. I also remember a while back there was a WIP item for EUFD updates, so I don't know if this is known already.

In this track file I perform the following actions:

  1. Select Preset 1 and tune PRI to VHF SC
  2. Screenshot 2024-06-08 001046.png
  3. Attempt to change Preset 1 VHF SC frequency to an invalid value (200.000)
  4. Successfully change Preset 1 VHF SC frequency to a valid value (145.000)
  5. Select Preset 1 with new frequency and tune PRI VHF to the VHF SC preset
  6. Screenshot 2024-06-08 001142.png
  7. Use the swap PRI/STBY button on the EUFD to change between values
  8. Specify a MAN frequency of 127.500 for VHF
  9. Swap PRI/STBY on the EUFD
  10. Tune VHF PRI to the VHF SC preset on Preset 1 again
  11. Screenshot 2024-06-08 001646.png

ah64_datalink_eufd.trk

Edited by GCRev
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