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It is the camera that can't handle low voltage. Pixim Seawolf handles a little better the low voltage, it works flawlessly down to 7V.
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Last edited by futurebreeze; Jan 14, 2013 at 01:14 AM.
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My camera is a RMRC 420xv and operates fine at 5v,never tried it at lower voltage.
This camera can handle lower voltage than the one in the video so i'm alright powering the vtx (which is powering the camera) on a 1300mah 2s. And since the vtx reduces the incoming voltage anyways then using a 3s would just result in more voltage being wasted as heat,with nothing more to gain,does that sound correct? |
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Didn't know that the vtx regulator is a switching one,thanks for pointing that out.
So then,using a 3s for powering the vtx is ok ? |
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Go with 3S, it will be OK. People that use 2S may need less voltage for OSD's like Remzibi. I did the same thing to avoid the dissipated heat of the linear regulator.
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Next time out will use 3s on the vtx.
Have made several flights and only used 2s on the vtx and started getting some static at 850m,antennas Bluebeam cl and a home built spw. Will see if the 3s makes a difference next time out. Good to know the 3s is ok and can use a 2s as back up. Thank you for the help. |
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It is normal to get static at 850m in certain positions. I'm very sure you won't notice any difference between 3S or 2S. There is a difference though: at the same capacity the 2S is lighter than 3S . On the other hand, going on 3S gives you the possibility to power video from the engine battery so no supplementary weight at all.
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I have been using the 3.3v Type A 5.8ghz module from Rangevideo with success and now they sell one the same but 5v. I need to but a couple more now.
I guess the 5V will be more versatile and can be used on a 1cell LiPo. Anyone had any problems with the 5v version? Here are the two they sell 3.3v and 5v. 3.3v http://www.rangevideo.com/index.php?...roducts_id=217 5v http://www.rangevideo.com/index.php?...roducts_id=304 |
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Thanks renatoa & skellator just was not brave enough to use the on a 1S LiPo on the 3.3v module but from what you say no problems.
Just been attaching the modules to some vero board with double sided tape and soldering an antenna connector to the vero board with wires to the TX to use a SPW. Simple and works great. So there does not seem to be any problem with the 5v ones and the 5v can be taken from the receiver if BEC/UBEC has enough power. |
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Last edited by Firepower; Jan 13, 2013 at 09:28 PM.
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Hi Guys,
I bought the 5.8ghz 200mw system for my quad about a month or two ago as my introduction to FPV. I am using these spironet antennas from HK. I don't seem to be getting anyway near the range I expected (1km). At the most in a clear LOS area like the beach I get around 150 - 200meters before the signal starts to degrade. I get the same range if I fly at a sports field as well. From what I have read I should have been able to get at least a few hundred meters with the stock antennas and around 1km with the spironets. Are the HK spironet antennas no good or is there something else I am missing? Thanks in advance. |
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Quote:
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Quote:
I run the vtx of a 3s 500mah pack s0 12 volts. I didn't realise they could run on as little as 3.7v...I thought it was 7v to 12v input? |
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