Recent content by Ttelmah

Agreed. It happens if the data being seen from the magnetic sensors when they switch on, is 'outside' the range expected. It can happen in a range of circumstances: 1) After a knock. 2) If the unit has been left for a while in the presence of a magnetic field. 3) If you try to arm somewhere...

OK. It was best to check. Hopefully the IMU calibration will have fixed it. If not, there is one other thing I can think of, that can cause this sort of behaviour. Having the Naza 'resiliently' mounted. I originally mounted my Naza using industrial Velcro. Had a very similar behaviour. Switched...

Yes. The same for me. I have a separate RTH switch, and whatever mode the main switch is in, if you switch 'out' of RTH, it doesn't come back to your control, till you change on the other switch, between atti and manual, or manual and atti. I always switch to manual after triggering RTH, then...

and, you have got the 'north' of the puck, offset by the amount of your local magnetic declination I hope?. It is necessary. Yours looks remarkably 'straight'. Best Wishes

I think probably it would. Obviously though you use the power for one take off/landing, and the 'standby' power while you move to the new location. Easy enough to test. Just do a take off, land, move perhaps 100', take off, and trigger RTH. It'll either come back to your first take off point, or...

There is also the question of spread spectrum versus single frequency. Are the single frequency units legal at all?. I seem to remember the exemption for video up to 25mW, only applied to systems using spread spectrum transmission?. Best Wishes

There are two separate 'bits' to locating itself. GPS has what is called a 'cold boot'. This is when you power it up, it starts listening, and doesn't hear any of the satellites it expects. This happens when the unit hasn't been switched on before (first boot), or has been off for a long time...

Interesting. Most of the sites selling things like the 125mW kit in the UK, have the line 'requires an amateur radio license for use in the UK'. Assumed they knew what they were talking about. Best Wishes

I think there are quite a few 'prop shortages' at present. In the UK/Europe, Graupner (who supply a lot of props), have 'changed hands', and seem to be late supplying orders. Other suppliers have run short, as people switch to trying to get alternatives, and it particularly seems to be affecting...

Or (much better really), get yourself an amateur radio license. It is not expensive. Useful data on how radio propagation works etc., is learnt, and then you can be legal.... Best Wishes

Ouch. However you _might_ have been able to get back control. The unit will _only_ go back to giving you control once 'fail safe' has been triggered, if it receives 'atti mode' as a command selection or 'manual mode' as a selection. If the selection is left in GPS mode, it won't give you back...

For a quad, two motors are rotating in one direction, the other two the other way. Each lifting 25% of the weight. Balanced. It increases the rotation rate on the pair rotating in one direction, and does a corresponding decrease on the other pair. Lift remains balanced (front right, and rear...

As a slightly further comment to this, insurance is particularly where the councils may get involved. Two areas of public land near me, are council owned, and they require that you have a certain level of insurance to fly here. The BMFA insurance is the easiest, and the membership card is...

I see lots of people talking about calibrating the IMU, but nobody has mentioned to study the radio calibration. Your radio must be setup so that when you release the sticks, the sliders go into the 'green' bit in the calibration screen, or there will be drift. On my radio I found that even...

Agree on the connections. As you see, it was the first thing I mentioned. However it would not explain the difference between Atti, and GPS. First on this, I don't think taking off in GPS mode is ever very safe. On my commonest site, I have a small shed behind me and to the right, and if I...