Update 28 April. On page two of this thread, TruTrak explains that I misunderstood a post on their forum.
Having two GPSes connected, one via ARINC and one via serial with both having identical active flight plans, - will not revert to the serial source for Flight Plan if the ARINC source fails.
It will instead revert to GPS ground track using the serial source UNLESS you hit the mode button again on the TruTrak.
Not as good as I thought, but still possibly a useful feature.
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Hey gang,
For those of you with TruTrak II (I believe all variations) I have some interesting news which comes of asking "stupid questions." From the TruTrak forum:
So, for those of you who have a "typical" setup with a GNS 480/430/530 as primary and an x96 as backup, there is no need to have a "switch" to have the best of both worlds. Just hook up the ARINC lines from the primary, and the serial line from the x96, and in the event the primary fails you will still have GPS guidance to your TruTrak.
Having two GPSes connected, one via ARINC and one via serial with both having identical active flight plans, - will not revert to the serial source for Flight Plan if the ARINC source fails.
It will instead revert to GPS ground track using the serial source UNLESS you hit the mode button again on the TruTrak.
Not as good as I thought, but still possibly a useful feature.
______________________________________________________
Hey gang,
For those of you with TruTrak II (I believe all variations) I have some interesting news which comes of asking "stupid questions." From the TruTrak forum:
TruTrakTech said:Nothing adverse would happen. It would work perfectly. When an ARINC steering command is present, it gets priority as we assume you'd like to use GPSS if it's available over GPS Nav.<paraphrased> said:So, what would happen if I wired only the ARINC lines from my GNS480 and wired the serial line from my 496?
Are you saying that steering commands from the 496 would be ignored as long as the unit is receiving ARINC steering from the 480?
Would that not provide true backup in the event my GNS 480 failed?
That would be a great way to have a back up rigged. It would also eliminate the need for switched input. Thanks!
So, for those of you who have a "typical" setup with a GNS 480/430/530 as primary and an x96 as backup, there is no need to have a "switch" to have the best of both worlds. Just hook up the ARINC lines from the primary, and the serial line from the x96, and in the event the primary fails you will still have GPS guidance to your TruTrak.
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