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#3284237 - 07/06/13 09:52 PM AChrono app
TheAirMan
16 Point


Registered: 06/18/01
Posts: 10680
Loc: Moss, Tennessee

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Anybody tried it. I downloaded it the other day but with all the rain I hadn't had a chance to use it. I figured it would be worth 99 cents just to play with. I was wondering how accurate it was. I downloaded it out of curiosity mainly. In 14 seasons I have never knew how fast my bow shot & never cared.
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#3284246 - 07/06/13 10:16 PM Re: AChrono app [Re: TheAirMan]
TNDeerGuy
12 Point


Registered: 11/28/06
Posts: 6170
Loc: Old Hickory/Mt.Juliet, TN

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I've only seen one arrow get picked up on a phone app, and it was off by almost 40fps versus my real chrono at the house.
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#3285826 - 07/08/13 04:08 PM Re: AChrono app [Re: TNDeerGuy]
89cherokeelimited
6 Point


Registered: 08/13/11
Posts: 838
Loc: TN, Sumner, Hendersonville

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Most phones most likely could not accurately determine the speed arrows are traveling.
the only thing the phone might be able to pick up is the fletching but I couldn't see it doing that 100%
Like TNDeerGuy said it will most likely be off by quite a bit.
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#3285926 - 07/08/13 06:49 PM Re: AChrono app [Re: 89cherokeelimited]
TheAirMan
16 Point


Registered: 06/18/01
Posts: 10680
Loc: Moss, Tennessee

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It doesn't pick up the arrow. It works off of sound. You enter in the distance you are going to be shooting. The you hit the button & it gives you a countdown & starts recording. After the shot it shows the sound like in music editing software or something. You can zoom in and slow it down ten times slower than real time. You mark when you shot and when the arrow hit & it gives you the average speed over the distance. I messed with it some yesterday. I had some crazy high & low number getting the hang of doing to. Mostly I wanted to shoot to quick. After I got the hang of it, I averaged 3 readings and it came out to 292 fps. Which I would think would be a little high. I was shooting a Mathews ZXT 28"@60 lbs. my arrow weighs roughly 375-380 grains I would say. I didn't figure it would be real accurate but for 99 cents I thought I would see what it would do.
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#3287362 - 07/10/13 10:41 AM Re: AChrono app [Re: TheAirMan]
89cherokeelimited
6 Point


Registered: 08/13/11
Posts: 838
Loc: TN, Sumner, Hendersonville

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Oh ok that makes sense.

Thinking about it you could record your shooting and slow it down to see the exact time the arrow travels and calculate that with your distance...
I might try this today...
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