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About raalst

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    RC-Cam Visitor
  1. Hi all, Maybe you know already, but I thought this could be useful : I found the socalled JellyLens valuable as a quick and easy (and light) way to get a wider view from the cam. you might want to check these things out. Just google for jellylens. it is about a cubic cm, made of plastic and comes with a silicone sticky pad (which can also be removed) I modded an underwater cam with it, but it also works above water, of course (have a look, link to instructables ) Regards, Ronald van Aalst
  2. you might want to check that the voltage over the battery is not dropping below (say) 5.5 volts I assume here you feed RC RX, speedcontroller, servo's and video stuff from a single battery. the R/C often uses a regulated power source (called BEC), which needs a few tenths of a volt extra above the voltage the R/X itself needs. if the symptom is bench-testable you could consider hooking up two separate batteries, disconnecting the R/C stuff from the Video stuff and see if the problem goes away.
  3. Hi, I'm into r/c submarines, and ROV's are interesting to me (but no experience with ROV's unfortunately) I have spoken to/seen people who connected the receiver antenna wire to the cable, and positioned their R/C transmitter close to the other end of said cable and that worked nicely. they basically swapped the radio waves air medium for a copper one. dunno how far it would take you, but it might do the trick. the main plus is that the rest can be readily and cheaply bought and will work reliably. another ready-made solution would be to use ethernet (that gets you about 10
  4. as far as I understand it is not 6 axis, but maybe it helps : http://www.hackaday.com/2008/02/09/cheap-3...-head-tracking/ I've seen another approach to this using a Wiimote. also on that site.
  5. I did not get a hit on a search for "paperazzi", so maybe this is a new item. otherwise, sorry for being too enthousiastic http://paparazzi.enac.fr/wiki/index.php/Main_Page seems that even if you do not require all of it, you might borrow a few bits.
  6. well, it's nothing special, but it's another world The boat ( british Xcraft) is not mine but I just bought an ATC-2K watertight cam then, and we strapped it on)
  7. Hi all, Very inspiring forum ! I build R/C submarines for a hobby. currently I am building a slightly larger model, with room for a camera. My video problem is, that I need the TX antenna up in the periscope (always above the water) and the TX itself in the sub's (hopefully ) dry compartment. I have a reasonable knowledge of electronics, but RF is not included in that. are there any succesful examples of how to take the antenna off a 2,4 Ghz TX and put a cable inbetween ? is it enough to solder a bit of coax inbetween ? probably not. could I leave o
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