Btw, fftune in regards to your comment about the desyncing. I in fact lowered the min throttle setting to 1005 because otherwise one or two motors were still spinning when armed. I can increase it but then my motors will spin when armed, is this normal? What is a decent min throttle setting?

(22-Apr-2017, 08:36 PM)Kevin Wrote: Btw, fftune in regards to your comment about the desyncing. I in fact lowered the min throttle setting to 1005 because otherwise one or two motors were still spinning when armed. I can increase it but then my motors will spin when armed, is this normal? What is a decent min throttle setting?

Actually most experienced pilots agree, having motors NOT SPINNING while ARMED is UNSAFE. Unless there is a specific need, it is SAFEST to have motors at IDLE SPEED while ARMED. This ensures the pilot AND everyone/anyone else around knows the craft is armed and has the potential to throttle up and rocket off at any moment.

Min throttle should end up around 1050-1070.
With props removed of course go to motors tab in CF/BF and slowly increase master slider untill ALL motors spin nice and smooth (use "up" and "down" arrows while selected for +-1 increments) Note that value and add 20. This should be your min throttle setting. 

Absolutely! Your motors should spin when armed unless you have enabled MOTOR_STOP, which is frankly dangerous. Also, if your motors don't spin when the throttle is at minimum and you drop the throttle as you do a flip, they won't start spinning again when you've completed the flip and raise the throttle.

(22-Apr-2017, 05:10 PM)Kevin Wrote: Anyway, right now I installed the linear antenna and I'm down to 644 grams . Really curious on how the linear antenna performs, hopefully my attitude v2's with the FS diversity RX mod will somewhat counter the loss of gain from the linear antenna.

Actually, gain isn't the most important factor when it comes to your VTX antenna. In fact, less gain is better, unless you only fly horizontally all the time. Here's why.

An omnidirectional antenna, (which is what both linear and cloverleaf antennas are), as its name suggests, transmits a signal equally in all directions horizontally and gives a radiation pattern that looks like this:



The only places where there is no signal is directly above and below the antenna. The signal strength is at maximum 90 degrees from vertical and drops off gently as you move away from that point.

As the antenna is purely a passive device, it can't amplify the signal to give more gain. If more gain is needed, the only thing you can do is change the design of the antenna to make it more directional so that more of the signal is concentrated into a smaller area of the sky. With an omnidirectional antenna, increasing gain has the effect of squashing the radiation pattern like this:



At 90 degrees to the vertical, we now have much more signal strength, but just 15 degrees off that, hardly any. While that might be great for a fixed wing FPV craft that you want to fly out to 10Km distance, it's a disaster for an FPV quad which rarely maintains a fixed angle in the air.

The difference between a linear polarised antenna and a circular polarised antenna isn't one of gain, it's one of polarisation. The thing about a circularly polarised signal is that when a CP signal bounces off something, it changes to the opposite polarisation. A CP antenna is great at picking up signals with the correct polarisation and terrible at picking up the opposite polarisation. For FPV in areas where there are lots of buildings or other sources of reflection, a CP antenna will hardly see any of the reflected signals.
A linearly polarised signal does not change polarisation when reflected. It just arrives a little later and at a lower strength, but it will still be received and cause interference in the received signal.

So, whether a linear polarised antenna will be worse than a cloverleaf or not depends very much on the nature of the area where you fly. In the right conditions, a linear antenna will give you just as good range as your circular polarised antenna.

In either case, more gain will probably give you worse range unless the transmitter and receiver are favourably aligned.

(22-Apr-2017, 08:36 PM)Kevin Wrote: Btw, fftune in regards to your comment about the desyncing. I in fact lowered the min throttle setting to 1005 because otherwise one or two motors were still spinning when armed. I can increase it but then my motors will spin when armed, is this normal? What is a decent min throttle setting?

Nothing to add to what Drone0fPrey and unseen said

In short:
- If you want that, use motor_stop (top right on config page)
- min_throttle should be around 20-30 points higher than where all motors spin

Emptied my first few lipo's after the diet of the corgi, and I'm quite happy with the result! The linear antenna performs way better then I excepted and it seems to suit my flying style just fine. I have a little more static but I did not have any loss of signal. I can really recommend the linear antenna if you don't fly any further then 50 to 100 meters (at least that is what I have tested).

As far as the loss of weight goes, I'm not really sure if the increase of min throttle did the trick or the weight loss but the quad feels alot better in the air and I never lose control. However in the end of the video (below) the motors suddenly stop spinning for some reason, I immediately disarmed the quad to prevent any damage. But that was really weird.




I tested with several lipo's, 2 old 1300 of 50C and 65C, 1 brand new 75C 1300 and the 1550 75C. I really felt like I was killing the old 1300's, because of all the frequent crit battery messages my taranis was generating (used the logical switches from https://oscarliang.com/taranis-logical-s...age-alarm/). The newer 75C 1300 was handling it alot better and held out a minute longer, but with the 1550 I really felt like there was no need to hold back on the throttle. Maybe with less hungry motors the 1300's will perform better, but I must say I really like it right now .