Is there a warm-up time for fix for the Reach M+?

[wizprod (Christian Grüner)]

Hi!

Considering investing in the Reach M+, but have a few questions:

• On my RS+'s I need to allow for 5-10 minutes for there be a proper, high quality fix. I would assume I need the same for the M+ ?
• In that case, have anyone made “pre-heat” solutions for their drones? I am would just solve it by distributing power more seperately or by another battery.

[blikkie (Nstellaard)]

Hi Wizprod,
our experience is that after approximately 2 minutes after powering on the drone, the M+ is ‘single’ as a status and ready to fly.

Regards,
Blikkie

[wizprod (Christian Grüner)]

But single status isnt good enough for the centimeter precision, that’s my issue. Do you use RTK or PPK?

[blikkie (Nstellaard)]

We work via the PPK process.

[wizprod (Christian Grüner)]

And haven’t got issues with the first 10-15 min are only a float solution?

[blikkie (Nstellaard)]

Our base has a fix within 1 to 5 minutes… drone has a single status within 2 minutes…
We’ve made a small video presenting the results:
https://vimeo.com/295133098

[andrew.yushkevich]

Hi @wizprod,

Do you work in RTK?

[wizprod (Christian Grüner)]

Well, I would like to avoid the extra work of post processing, and I would like to feed the flight controller the RTK NMEA stream for added precision during.

[andrew.yushkevich]

Hi @wizprod,

I would assume I need the same for the M+ ?

Yes, usually you need about the same time as with RS+.
What’re your environmental conditions and hardware setup?

In that case, have anyone made “pre-heat” solutions for their drones? I am would just solve it by distributing power more seperately or by another battery.

Please, can you clarify what do you mean by “pre-heat” solutions?

[wizprod (Christian Grüner)]

Yes, usually you need about the same time as with RS+.
What’re your environmental conditions and hardware setup?

Thanks !
No setup yet. Looking into whether or not to buy.

Please, can you clarify what do you mean by “pre-heat” solutions ?

If there is a warm-up time for the receiver, letting the drone sit fully turned on would drain battery from the drone, thus giving you less flight-time.
So instead one would be looking at solution where you could power up the M+, let it get a fix, then startup the drone and switch over the M+ module to the Drone power pack (without turning it off in the process).

[andrew.yushkevich]

Hi @wizprod,

So instead one would be looking at solution where you could power up the M+, let it get a fix, then startup the drone and switch over the M+ module to the Drone power pack (without turning it off in the process).

The best solution for that is to power M+ with an external power bank.
Note, that in this case, you’ll need to cut the power wire connected to the drone controller.

[wizprod (Christian Grüner)]

Is that to prevent power Noise from the drone systems?

[andrew.yushkevich]

No, to prevent dual powering the device.