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Old Jan 24, 2011, 07:53 PM
Stay airborne my friends
rc-mike's Avatar
USA, TN, Dickson
Joined Nov 2004
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He is working on an antenna tracker right now. A picture is a few pages back.

I don't see why waypoints wouldn't work everywhere but I'm not entirely sure. I haven't heard of it not working anywhere.
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Old Jan 24, 2011, 07:54 PM
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beginner4life's Avatar
United States, MD, Ellicott City
Joined Mar 2008
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So can i just get a 7805 from like radio shack?
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Old Jan 24, 2011, 07:59 PM
Videopilot
Derek_S's Avatar
United States, NC, Charlotte
Joined May 2009
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Originally Posted by beginner4life View Post
So can i just get a 7805 from like radio shack?
Yes.
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Old Jan 24, 2011, 08:06 PM
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Are there different 7805's or should i just be like where do you keep the 7805 voltage regulators? lol
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Old Jan 24, 2011, 08:13 PM
Just trying to get a nut.
scrtsqrl's Avatar
United States, VA, McLean
Joined Oct 2006
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Originally Posted by beginner4life View Post
Are there different 7805's or should i just be like where do you keep the 7805 voltage regulators? lol
If you go to the "bins" they will have it there under "Regulators". You are better off picking it out yourself. It's a very common part.



http://www.radioshack.com/product/in...ductId=2062599
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Old Jan 24, 2011, 08:16 PM
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Royalfm's Avatar
Germany
Joined Oct 2010
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Originally Posted by rc-mike View Post
He is working on an antenna tracker right now. A picture is a few pages back.
I guess i missed that and im to blind to find it maybe you can give me a link or the pagenumber?

Thank you.
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Old Jan 24, 2011, 08:17 PM
I love FPV!
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Eastern side of Australia
Joined Jan 2007
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.... Error. Sorry.
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Old Jan 24, 2011, 08:21 PM
Stay airborne my friends
rc-mike's Avatar
USA, TN, Dickson
Joined Nov 2004
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Originally Posted by Royalfm View Post
I guess i missed that and im to blind to find it maybe you can give me a link or the pagenumber?

Thank you.
http://www.rcgroups.com/forums/showp...postcount=7760
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Old Jan 24, 2011, 08:23 PM
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Ok, now i know why i didnīt found it by using the searchengine

Does this look like incl. diversity?
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Old Jan 24, 2011, 08:55 PM
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United States, MD, Ellicott City
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Quote:
Originally Posted by scrtsqrl View Post
If you go to the "bins" they will have it there under "Regulators". You are better off picking it out yourself. It's a very common part.



http://www.radioshack.com/product/in...ductId=2062599

Okay thanks
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Old Jan 24, 2011, 09:01 PM
O <- this a ground loop
Japan
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Originally Posted by beginner4life View Post
Okay thanks
If you're worried, don't forget to pick up a heatsink while you're at it...

unless you want to build a flying hot glue gun

but 150mA over a 7v drop is not going to get anywhere as hot as a 1A rated 7805 with 1A over a 7v drop.

Ren
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Old Jan 24, 2011, 10:00 PM
Just trying to get a nut.
scrtsqrl's Avatar
United States, VA, McLean
Joined Oct 2006
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Originally Posted by devfor View Post
If you're worried, don't forget to pick up a heatsink while you're at it...

unless you want to build a flying hot glue gun

but 150mA over a 7v drop is not going to get anywhere as hot as a 1A rated 7805 with 1A over a 7v drop.

Ren
You could also get a 7808 and step it down to 8 V before you step it down with the 7805.
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Old Jan 24, 2011, 10:04 PM
Just trying to get a nut.
scrtsqrl's Avatar
United States, VA, McLean
Joined Oct 2006
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I tried to power my DOSD+ V1 with filtered 5V from a BEC as recommended earlier to eliminate some lines in my video. Sadly, this did not fix the problem as well. I guess I will have to live with it for now.

In the process of trouble shooting, I smoked my 2.4GHz 500mW VTx in the process.

I "borrowed" our other airplane's VTx. Fortunately, I did not damage anything else.

So, anyone in the US have a 500mW or 200mW Lawmate VTx who'd care to part with it? If so, pls send me a PM.

If I don't find one soon. I think I'm going with a 5.8 system for "club" use.
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Old Jan 24, 2011, 10:07 PM
KB3VOJ
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USA
Joined Sep 2007
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Why would you try to provide filtered 5V for the OSD? I think that is too low for comfort, filtered 12V is what you should be powering the DOSD with. If you have a 5V camera or VTx is where the 5V comes in, but you should consider the BEC to be dirty power and only use for the RC control if possible. Some switching BEC's are better than others. I switched over to the 7805 linear regulator circuit to provide clean 5V to my 5V VTx. Sorry to hear about the VTx and hopefully somebody has one they want to part with.
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Old Jan 24, 2011, 10:10 PM
Just trying to get a nut.
scrtsqrl's Avatar
United States, VA, McLean
Joined Oct 2006
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Quote:
Originally Posted by cherokee180c View Post
Why would you try to provide filtered 5V for the OSD? I think that is too low for comfort, filtered 12V is what you should be powering the DOSD with. If you have a 5V camera or VTx is where the 5V comes in. Sorry to hear about the VTx and hopefully somebody has one they want to part with.
I have a 5 V camera and VTx. I was trying to power all video gear off one BEC.

This could be an opportunity. Maybe I'm going to equip one bird with 5.8 so that I can fly at the local field where 2.4 Radios just clobber the video.

Any reason why the DOSD is less reliable with 5V?

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