Recent content by Argonaise

I have read about the technology almost a year ago. I thought it was great and often find it as mysterious technology - emulating all of those and relaying signals. Detaching transmitter from operator looked as quite good idea, like controlling drone in a car in cold winter. However I did not...

Actually dumping p3s and getting a new mavic eliminates all problem easily. I just want a cleaner solution which not adds another battery pack with amp back of the controller... Just rc and drone. FCC mod is made upon contributors in this thread. Maybe you feel easier using 2.4G+5.8G amp than...

After watching watchlog.sh, Sunkyu pointed me that in your script, "set coverage" runs only at RC. Drone is who waiting ACK after sending video packet, so adjusting distance shall be done in Drone, or hopefully both side. I did not analyzed script myself, but please be informed for that issue...

Have been in pursuit of 5.8Ghz boosting. Having no opportunity to touch my P3S recently, so I have searched for documents. This is what I found so far. From Ocjze's comment that 5.8g board uses BK5811, I looked for its datasheet for chip setup. Alas, there was RF power setup in that...

I found "set coverage nn" is equivalent to "set distance nnnn" somewhat later. I'm using "set distance 800" which is range limit of my 5.8g. After typing "iw phy0 list" I found what I set was "coverage 2", equivalent distance to "~900m". Within this range video is very smooth, if the radio...

1us, 3us are ACK timeouts. Changing ACK timeout and Slottime For every further 300 meter increase in distance above 300 meters add 1 µs to the Slottime of your device, and 2 µs to the ACK timeout and CTS timeout. Every station connected on the same channel should have the same time constants...

2.4ghz WiFi - Video / Telemetry Downlink <-- standard WiFi protocol with a few added non-published schemes. Note: The P3S' internal WiFi Module is easily removed since it is held in place via a two row pin socket strip and a small piece of double sticky foam. (Power and pin-out information is...

What I understand is "cert_country=1" option makes no difference in the CRDA regulation process. Did I get it right? CRDA domain switching is known to be triggered by GPS lock. Regardless of App(Litchi, DJI Go) CRDA is applied with GPS lock. Those are experimented by forum members.

1. Screws in script usually reversible by backup because you have a way to edit that script. 2. Screws in rcS usually reversible in normal linux system because you have wired console. 3. Screws in rcS of Phantom or RC cannot reversible by backup script because you lose way to edit it. Why so...

Good point, but touching rcS had been considered dangerous, because when it's screwed, it's irreversible(can reversible but requires much much effort...) Could rsmod and insmod run by telnet shell environment or djiled.sh?

Tuning P3S's wifi link capability. P3S transmits video packet with fragmentation, and each fragmented packet requires ACK to complete transmission. If ACK does not arrive, drone retransmits packet. So even if some packet lost by any reason, the video can be seen normally, in close range...

Solution was already developed and it had been updated over times. Please find Papatita's automated updator.

Ambarella is the maker of image processing chip, namely A9 SOC(System on chip, image processing circuit and ARM 2 core cpu, memory is held together on a chip). Phantom 3 and gopro 4 uses almost same chip, A9 SOC, which embeds special kind of linux system, yes you're right on RTOS. They offer...

The only way to set bitrate up to 40mbps is through ambarella shell commands they offer. (You can connect it through telnet, 192.168.1.3) The right command and option is only opened to developers, and P3 series camera is same embedded rtos system to gopro 4 silver & black. Some group have been...

I've been helping on someone's bird sent to me, and finally I got mine fixed. There's two partitions on the bird, one is backup partition you'll see on the manual boot, and another one is actual partition you have to mount manually, which is used in the auto booting. Now the both RC and drone...