Homebuilt ROVs Forum

by looking at that scope trace, it appears you don't have the probe's ground properly connected.

I'm surprised by the no mixing though. however that isn't the end of the world if you are driving something like an arduino. just do all the mixing in there.

Oddly enough my Futaba T10 CAG has the feature disabled but the earlier version has DSC available. The Turnigy 9X has a DSC port, does anyone know what kind of signal it is (PPM) and what kind of cable is used? What about the impeadence and signal atenuation or long distances, if you could extend t...

BUT, is it as easy as running the helper wire from the surface into where your rx stored? Or do you need capacitors/connect direct to the rx? I have read many variations. I don't understand what you mean by "helper wire". If you do try connecting the two antennas together, I'd suggest ac ...

Extending a 2.4GHz antenna, One of my options was to extend the TX antenna and place it in the ROV next to the RX antenna. I figured I'd lose a bit in the 100' mini coax, but I've been told that I will lose too much and It may not work. I have a Futaba T10C with the training port on the back and I ...

helium? nitrogen? hydrogen? (I wouldn't recommend that last one) for a given volume, air will be more bouyant than closed cell foam. the advantage of the foam is is doesn't need the tanks, which reduce the effective buoyancy of the air. the downside of cheap packing type foam is it compresses at dep...

That won't work. Most 2.4ghz radios don't have dsc ports (direct servo connect) because the 2.4ghz link eliminates interference and isn't needed. I don't recall seeing any futaba 2.4 ghz rxs with dsc inputs. none of mine have them. however, if you replace the rx in the rov with a microcontroller (li...

that is a good start. don't forget those diodes between the motor leads otherwise you'll be replacing those fets pretty regularly. I'm not sure you need two fets in parallel, though. your bilge pumps only draw about 3.5 amps max so you'll be well below the power rating of those fets.

good luck!

yeah, as long as the baluns operate over one or two pairs. I'm not familiar with them so I can't say for sure.

the easy answer is, to communicate with both over a single cable, you will need an ethernet switch (a hub will work too) in the rov. However, fast ethernet only requires two pairs and a single cat 5 cable has four pairs. you could split the cable into two, two pair cables, crimp rj45 connectors on e...

use the built in vtail mix.