i cant change my vhf voulme the right dataref is from 0-1 and my poti goes from 13 to 1023 | MobiFlight | Page 1

brazen veldt Jan 12, 2025, 3:26 PM

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i cant change my vhf voulme the right dataref is from 0-1 and my poti goes from 13 to 1023 what do i have to do to get that working

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spark perch Jan 12, 2025, 3:42 PM

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Try this formula
(@-13)/1010

brazen veldt Jan 12, 2025, 3:51 PM

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working thanks

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but when the poti is on the center its just starting at 0.1 and the poti already is on 90

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spark perch Jan 12, 2025, 4:11 PM

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I would suspect your poti is not linear but logarithmic. Is it a standard B10K poti or something else?

brazen veldt Jan 12, 2025, 4:11 PM

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is a OEM aircraft poti

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so how can i fix that ?

spark perch Jan 12, 2025, 4:13 PM

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Do the extreme positions behave correctly, but middle region is too low?

brazen veldt Jan 12, 2025, 4:14 PM

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no it works normaly from 13-1023 but it starts the dataref at 90 from the poti

spark perch Jan 12, 2025, 4:16 PM

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I don't understand what you say. It starts the data ref at 0.9 and goes to 1.0 as you increase the poti?

brazen veldt Jan 12, 2025, 4:17 PM

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no the dataref is from 0.1 to 1 so when i turn the poti to 15 or so it not doing anything with the dataref

spark perch Jan 12, 2025, 4:19 PM

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The formula is for a poti range of 13 to 1023. Is this correct?

brazen veldt Jan 12, 2025, 4:19 PM

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yes

spark perch Jan 12, 2025, 4:20 PM

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Fully to the left Mobiflight reads 13 and fully to the right it reads 1023. Is this correct?

brazen veldt Jan 12, 2025, 4:20 PM

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yes thats correct

spark perch Jan 12, 2025, 4:22 PM

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brazen veldt no it works normaly from 13-1023 but it starts the dataref at 90 from the poti

Help me understand this

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What is 90?

brazen veldt Jan 12, 2025, 4:23 PM

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when the poti is at 90 then mobiflight sends somthing to the dataref but below 90 not

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maybe have time for a call with screen share

spark perch Jan 12, 2025, 4:24 PM

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90 is the poti reading received by Mobiflight?

brazen veldt Jan 12, 2025, 4:24 PM

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yes

spark perch Jan 12, 2025, 4:25 PM

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From 13 to 90 nothing happens?

brazen veldt Jan 12, 2025, 4:25 PM

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yes i dont now why

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know*

spark perch Jan 12, 2025, 4:27 PM

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OK and what happens after 90? BTW, 90 would correspond to a movement of only 0.08 on the Sim scale.

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Maybe the Sim moves in discrete 0.1 steps.

brazen veldt Jan 12, 2025, 4:28 PM

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spark perch Maybe the Sim moves in discrete 0.1 steps.

yes is start moving when the poti in mobiflight say 90

spark perch Jan 12, 2025, 4:30 PM

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In a linear poti 90 should be achieved at 8% turn or only about 20 degrees

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We can recalculate to ignore the first 90 units

brazen veldt Jan 12, 2025, 4:31 PM

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yea that would be good

spark perch Jan 12, 2025, 4:32 PM

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Try
(@-90)/933

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May need to check the bounds

brazen veldt Jan 12, 2025, 4:33 PM

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will do

spark perch Jan 12, 2025, 4:34 PM

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Max((@-90)/933, 0)

brazen veldt Jan 12, 2025, 4:34 PM

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still the same

spark perch Jan 12, 2025, 4:36 PM

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Is the minimum reading in the Sim 0 or 0.1?

brazen veldt Jan 12, 2025, 4:36 PM

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0.1 is min

spark perch Jan 12, 2025, 4:36 PM

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Ahh

brazen veldt Jan 12, 2025, 4:36 PM

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and max 1

spark perch Jan 12, 2025, 4:36 PM

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The math goes 0 to 1

brazen veldt Jan 12, 2025, 4:37 PM

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at 0.1 the volume handle starts

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and 0.1-0 is swich to off

spark perch Jan 12, 2025, 4:39 PM

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(@-13)/1122 + 0.1

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This formula goes from 0.1 to 1

brazen veldt Jan 12, 2025, 4:40 PM

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works now thanks

spark perch Jan 12, 2025, 4:40 PM

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It is just math

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But you won't be able to switch off

brazen veldt Jan 12, 2025, 4:42 PM

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i have it already on a button

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for press

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when you press the button its if up its on

#i cant change my vhf voulme the right dataref is from 0-1 and my poti goes from 13 to 1023