Archades wrote:@Mstrens
Been a while since I've flown but the vario sounds on this are ok
http://www.youtube.com/watch?v=0aFWjv3ymPo
I probably just need to play with the settings for my taranis. What do you recommend for the 4 values for deadband, etc?
Thanks for the video.
In the mean time I had a look to several RC varios and to paraglider vario and I made some proposal to allow each user define his preferences about the vario sounds (frequency at nearly zero lift, variation of frequency in function of vertical speed, frequency of repetition of beep when rising, ..). A developper is currently working on this.
Currently in the taranis you can't really choice the type of sound but you can fix 4 parameters on the telemetry panel.
The 4 parameters refers to the vertical speed.
You have
- a min (in m/sec) (default = -10)
- a center min = lower value of a dead band (default -0.5)
- a center max = high value of the dead band (default +0.5)
- a max (default = + 10)
If the vertical speed is lower than min the vario produces a continous low frequency tone (the same frequency for any value of vertical speed)
If the vertical speed is higher than the min but lower than center min, the vario produces a continous low frequency tone (the frequency varies linearly with vertical speed in the same way as in a glider)
If the vertical speed aproach the center min, the frequecy is 1000 hz. This value seems quite high and some people are curently claiming a little about this.
If the vertical speed is higher than the center min but lower than center max, the vario produces no sound = dead band.
If the vertical speed is higher than the center max but lower than max, the vario produces an intermitent tone (beep beep...) frequency of tone and frequency of repetition vary with vertical speed up to the max. Then the frequenies does not varies anymore.
The default values seems me good as starting point.
In fact it depend a lot of the user and the vario.
If the vario is very noisy(like the current version of Frsky vario - but they are working on a new firmware to upgrade it a lot), you must put a large dead band other wise you get a lot of wrong tones. With the current firmware for the Frsky vario, you have to fix the dead band at about -0.9 +0.9 (in fact 0.6 or 0.9 does not matter because the vario report per step of 0.5 m/sec what is quite bad).
If you use another vario (less noise, more accuracy) you can reduce the dead band or even set center min = center max if you like having always a tone. The values has to been chosen depending of what you would like to know. Do you want to be informed with a rising tone when the vertical speed is > 0, then set the center max value on 0. Do you want to consider that you are already in positive lift when vertical is -0.2 (because normal sinking rate is e.g -0.5) then put it on this value. If you are interested only by big lift, then set the value at 1 or higher.
For the max value, if you want to be able the ear a difference between 9 and 10 m/sec then you must set the value on 10 but the change is frequency between 1 and 2 m/s will not be so big. If you reduce the max value to e.g 5, you will ear much better a difference between 1 and 2 but not anymore between 5 and 6.
You see, it is not easy to answer. It depend a lot on the quality of the vario and on what you expect.