# RTK Here v2 **URL:** \ **Category:** Here GPS\ **Created:** [11 July 2019 17:57 UTC](https://discuss.cubepilot.org/t/rtk-here-v2/1320 "2019-07-11T17:57:50Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![pedrosa](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/pedrosa/32/719_2.png) [@pedrosa](https://discuss.cubepilot.org/u/pedrosa)\ **Post date:** [11 July 2019 17:57 UTC](https://discuss.cubepilot.org/t/rtk-here-v2/1320/1 "2019-07-11T17:57:50Z")
RTK doesn’t show any GNSS satellite. I tested it with other firmwares using u-center\_v 19.06, but it did not work. I used Mission Planner to make the connections, but the referential connected to my laptop didn’t show any GNSS satellite, and the rover connected on pixhawk cube shows “no GPS”. I would like to hear some suggestions from the group to solve this problem. Tks. Cheers, Pedrosa. ---
**Author:** ![philip](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/philip/32/9035_2.png) [@philip](https://discuss.cubepilot.org/u/philip)\ **Post date:** [11 July 2019 23:10 UTC](https://discuss.cubepilot.org/t/rtk-here-v2/1320/2 "2019-07-11T23:10:13Z")
Here +? Or here 2? ---
**Author:** ![philip](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/philip/32/9035_2.png) [@philip](https://discuss.cubepilot.org/u/philip)\ **Post date:** [11 July 2019 23:11 UTC](https://discuss.cubepilot.org/t/rtk-here-v2/1320/3 "2019-07-11T23:11:16Z")
No gps means no gps is connected… ---
**Author:** ![pedrosa](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/pedrosa/32/719_2.png) [@pedrosa](https://discuss.cubepilot.org/u/pedrosa)\ **Post date:** [12 July 2019 10:28 UTC](https://discuss.cubepilot.org/t/rtk-here-v2/1320/4 "2019-07-12T10:28:53Z")
Thank you for your help. The whole story was that last year I made an X5 Skywalker but on a flight I ended up losing it. He was using the Here + base and the Here antenna. With this, I bought another pixhawk cube + antenna here 2. But now the base connects in the mission planner, but does not pick up any satellite. And when I plug in the drone, using the MP, it shows “no GPS”. ---
**Author:** ![RoboMotic](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/robomotic/32/947_2.png) [@RoboMotic](https://discuss.cubepilot.org/u/RoboMotic)\ **Post date:** [12 July 2019 13:44 UTC](https://discuss.cubepilot.org/t/rtk-here-v2/1320/5 "2019-07-12T13:44:26Z")
Hi, recently I had a energy problem with my cube, because I was drawing too much energy from it with some distance sensors. That cause the GPS power off on flight and compass issues too. May be you have too much electronics pluged to the cube drawing too much power. Bye! ---
**Author:** ![philip](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/philip/32/9035_2.png) [@philip](https://discuss.cubepilot.org/u/philip)\ **Post date:** [12 July 2019 23:23 UTC](https://discuss.cubepilot.org/t/rtk-here-v2/1320/6 "2019-07-12T23:23:36Z")
Please try with latest master ---
**Author:** ![pedrosa](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/pedrosa/32/719_2.png) [@pedrosa](https://discuss.cubepilot.org/u/pedrosa)\ **Post date:** [15 July 2019 11:32 UTC](https://discuss.cubepilot.org/t/rtk-here-v2/1320/7 "2019-07-15T11:32:36Z")
Thank you for your help. I will try with another battery. As soon as it works I’ll post it here. ---
**Author:** ![RoboMotic](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/robomotic/32/947_2.png) [@RoboMotic](https://discuss.cubepilot.org/u/RoboMotic)\ **Post date:** [15 July 2019 13:19 UTC](https://discuss.cubepilot.org/t/rtk-here-v2/1320/8 "2019-07-15T13:19:55Z")
Hi Pls dont missunderstand me, I think the battery is not the problem, i’m supposing you are taking from the cube too much power from your electronics (may be you have connected your radio RX power or some sensor), so the Cube cant energyze everything, then you GPS dont start. ok? Bye! ---
**Author:** ![pedrosa](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/pedrosa/32/719_2.png) [@pedrosa](https://discuss.cubepilot.org/u/pedrosa)\ **Post date:** [15 July 2019 13:36 UTC](https://discuss.cubepilot.org/t/rtk-here-v2/1320/9 "2019-07-15T13:36:26Z")
OK. Tks. ---
**Author:** ![pedrosa](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/pedrosa/32/719_2.png) [@pedrosa](https://discuss.cubepilot.org/u/pedrosa)\ **Post date:** [24 July 2019 03:48 UTC](https://discuss.cubepilot.org/t/rtk-here-v2/1320/10 "2019-07-24T03:48:31Z")
Now the Here + is working (base), I just updated the MP. But the antenna Here v.2 shows no GPS, and I don’t know why yet. I’m using the GPS 1 input. ![image](https://discuss.cubepilot.org/uploads/default/original/1X/9fbad6d590baeb6aff0cacddee55afc3579d83b9.jpeg) ---
**Author:** ![canterobb](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/canterobb/32/746_2.png) [@canterobb](https://discuss.cubepilot.org/u/canterobb)\ **Post date:** [25 July 2019 04:51 UTC](https://discuss.cubepilot.org/t/rtk-here-v2/1320/11 "2019-07-25T04:51:46Z")
It looks like the same problem we have several in the forum.☹ you can check > [@Here 2 can update](https://discuss.cubepilot.org/t/here-2-can-update/471/96): > > Today I made several tests to find out what the error is but I am very confused. [IMG\_2302] I tested my GPS here2 with a Pixhawk radiolink and it worked perfectly. I could say that GPS here 2 is fine. [IMG\_2303] I tried here2 with the same cable and the same firmware with a pixhawk clone and it didn’t work, it means that here 2 doesn’t work with all pixhawk [IMG\_2311] my 4 test units, all with the same gps and ardurover 3.5.1 [IMG\_2318] testing my cube with 2 gps and it didn’t work with … or > [@HERE2 CAN issue](https://discuss.cubepilot.org/t/here2-can-issue/1116/34): > > I still have not solved anything, I am waiting for another GPS here 2 that I buy, I hope it is the solution, because if with the GPS here2 again it does not work, I will be very disappointed. Today I made several tests to find out what the error is but I am very confused. [IMG\_2302] I tested my GPS here2 with a Pixhawk radiolink and it worked perfectly. I could say that GPS here 2 is fine. [IMG\_2303] I tried here2 with the same cable and the same firmware with a pixhawk clone and it didn’t … ---
**Author:** ![mtnsurveyor](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/mtnsurveyor/32/615_2.png) [@mtnsurveyor](https://discuss.cubepilot.org/u/mtnsurveyor)\ **Post date:** [1 August 2019 12:07 UTC](https://discuss.cubepilot.org/t/rtk-here-v2/1320/12 "2019-08-01T12:07:35Z")
@pedrosa The Here2 is not what you need for RTK. It is not a carrier phase receiver. Meaning this: The number rf waves (about 19.2cm each) are measured to the sv. The receiver counts the number of waves. A carrier phase receiver counts the final segment portion. Code recievers do not and will not have enough data to get a kinematic fix. You will need a M8P or F9P chip. ---
**Author:** ![philip](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/philip/32/9035_2.png) [@philip](https://discuss.cubepilot.org/u/philip)\ **Post date:** [1 August 2019 12:30 UTC](https://discuss.cubepilot.org/t/rtk-here-v2/1320/13 "2019-08-01T12:30:57Z")
Here+ is RTK Here or Here2 is not RTK ---
**Author:** ![mtnsurveyor](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/mtnsurveyor/32/615_2.png) [@mtnsurveyor](https://discuss.cubepilot.org/u/mtnsurveyor)\ **Post date:** [1 August 2019 12:50 UTC](https://discuss.cubepilot.org/t/rtk-here-v2/1320/14 "2019-08-01T12:50:07Z")
Also: The HerePro soon too. Please ---
**Author:** ![philip](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/philip/32/9035_2.png) [@philip](https://discuss.cubepilot.org/u/philip)\ **Post date:** [3 August 2019 01:27 UTC](https://discuss.cubepilot.org/t/rtk-here-v2/1320/15 "2019-08-03T01:27:21Z")
HerePro hardware is nearly ready. Firmware is taking a bit more time. ---
**Author:** ![pedrosa](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/pedrosa/32/719_2.png) [@pedrosa](https://discuss.cubepilot.org/u/pedrosa)\ **Post date:** [13 August 2019 18:19 UTC](https://discuss.cubepilot.org/t/rtk-here-v2/1320/16 "2019-08-13T18:19:50Z")
Thanks @mtnsurveyor !!! I´m using an RTK Here+ (referential), and the antenna (inside the drone) Here2. But, with this antenna I can not use that even as a GPS antenna that only receives the C/A code. Using the mission planner, It appears to be without GPS. ---
**Author:** ![pedrosa](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/pedrosa/32/719_2.png) [@pedrosa](https://discuss.cubepilot.org/u/pedrosa)\ **Post date:** [13 August 2019 18:26 UTC](https://discuss.cubepilot.org/t/rtk-here-v2/1320/17 "2019-08-13T18:26:15Z")
So… You are telling me that Here2 is a conventional GNSS antenna, meaning it can only receive the Course Aquisition code (C/A code) ? ---
**Author:** ![mtnsurveyor](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/mtnsurveyor/32/615_2.png) [@mtnsurveyor](https://discuss.cubepilot.org/u/mtnsurveyor)\ **Post date:** [13 August 2019 19:55 UTC](https://discuss.cubepilot.org/t/rtk-here-v2/1320/18 "2019-08-13T19:55:28Z")
Yes, that is my understanding. The Here2 is M8N (CA only) and the Here+ is M8P (CA & carrier phase) ---
**Author:** ![pedrosa](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/pedrosa/32/719_2.png) [@pedrosa](https://discuss.cubepilot.org/u/pedrosa)\ **Post date:** [13 August 2019 20:02 UTC](https://discuss.cubepilot.org/t/rtk-here-v2/1320/19 "2019-08-13T20:02:02Z")
OK. Thanks. So I bought the wrong antenna… ☹ ---
**Author:** ![mtnsurveyor](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/mtnsurveyor/32/615_2.png) [@mtnsurveyor](https://discuss.cubepilot.org/u/mtnsurveyor)\ **Post date:** [13 August 2019 20:37 UTC](https://discuss.cubepilot.org/t/rtk-here-v2/1320/20 "2019-08-13T20:37:48Z")
Well, just to be clear it’s the GPS receiver too. [Next page](https://discuss.cubepilot.org/t/rtk-here-v2/1320.md?page=2)