# Timer for flashing text

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The gauge below begins flashing alternating red and white when the aircraft descends through the decision height (selected in a separate radar altimeter). I would like to have the flashing stop after three seconds. Can that be done? I didn't spot any solution in my search of the forum or FAQ - I hope I didn't miss something obvious!*********************************************(A:Radio height, feet) 1000 <%((A:DECISION HEIGHT, feet))%!4d! DH*******************************************Cheers, Bob

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Hi, Just thought of this practical solution:...Color="%('White' 'Red' (A:Radioheight, feet) (L:radio_ht_adjust,feet) - (A:DECISION HEIGHT,feet) < d (L:ThreeSecs,number) * (>L:ThreeSecs,number)(P:absolute time, number) 1 % 0.5 > d (L:ThreeSecs,number) + 7 min (>L:ThreeSecs,number) * ! (L:ThreeSecs,number) 6 > or ?)"...This should make the text flash white/red for about 3 secs and then stay white. You can play with "7" and "6" values to adjust the timer.Let me know if it works :-)Tom

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Hi Tom,I'm no programmer but I played with all combinations of the "7" and "6" values and all I got was either steady blinking or just one quick flash - no combo permitted an adjustment of the flash timing. Thanks for giving this your time. Bob

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Hi,I use:Color="%('orange' 'dkgray' (A:Radio height,feet) (A:DECISION HEIGHT,number) - abs 50 < (P:absolute time, number) 1 % 0.5 > * ? )" You can vary with the amount of altitude difference between radio- and decision height.Say you descend with 600 ft/min, then in 3 seconds the altitude change is 30 ft so the formula becomes:Color="%('orange' 'dkgray' (A:Radio height,feet) (A:DECISION HEIGHT,number) - abs 15 < (P:absolute time, number) 1 % 0.5 > * ? )" Hope it helps,Jan"Beatus ille qui procul negotiis..."

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Hi,Could you try using 28 instead of 7 and 27 instead of 6?.I think it should work... Tom

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Nice going, Tom - Your amended code works perfectly.Jan, I got yours to work also.Much thanks to you both!Best regards, Bob

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• Tom Allensworth,
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