# Here3 Inconsistent (LOW) Sat Number

**URL:** <https://discuss.cubepilot.org/t/here3-inconsistent-low-sat-number/12047>\
**Category:** Here GPS\
**Created:** [15 October 2023 19:33 UTC](https://discuss.cubepilot.org/t/here3-inconsistent-low-sat-number/12047 "2023-10-15T19:33:38Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Mauro.Tanure](https://discuss.cubepilot.org/letter_avatar_proxy/v4/letter/m/ecd19e/32.png) [@Mauro.Tanure](https://discuss.cubepilot.org/u/Mauro.Tanure)\
**Post date:** [15 October 2023 19:33 UTC](https://discuss.cubepilot.org/t/here3-inconsistent-low-sat-number/12047/1 "2023-10-15T19:33:38Z")

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Hi!

One of our drones is showing a weird discrepancy between the number of satellites for each Here3 receiver (sometimes 8 satellites while the other gets 16!). We’ve been using a dual Here3 setup since 2020 and I don’t recall any similar episode.

**Setup:**

- Cube Orange+
- Kore Carrier Board
- Dual Here3 (simetrically placed)

**Important Considerations:**

- There are other drones, same model, that aren’t showing this issue
- We swapped CAN ports and the issue was still in the same receiver
- Antena interference is unlikely because of the simetric placement and lso because this issue is not happening in other drones.
- The difference sometimes gets smaller, but there is a difference almost all the time.  
\*Parameters are correct  
\*The receivers are in the same FW and version.
- The “bad” GPS is indeed showing much worse GPA values, but the latitude and longitude reported through the flight, from both “bad” and “good” receivers, are perfectly matched.

**Screenshots**

 ![image](https://discuss.cubepilot.org/uploads/default/original/2X/3/3e26319ee56f0340e65ae0699d1cad53bbd2a9b9.png)

 ![image](https://discuss.cubepilot.org/uploads/default/original/2X/3/376e955ecf622d7215df848d5ade9b2756520521.jpeg)

\*\*Link to LOGS"  
[https://drive.google.com/drive/folders/1FiAfmymgP33VA6Ahzo6ZShRFOAEZacTv](https://drive.google.com/drive/folders/1FiAfmymgP33VA6Ahzo6ZShRFOAEZacTv)

We’ll change the receiver, but in the meantime I’d like to dig deeper on this matter.

**Questions**

- What could cause such an obstruction?
- Could a small interference on the Here3 cable (the cable, not the receiver itself) cause that?

> **[Here3 Inconsistent (LOW) Sat Number](https://discuss.ardupilot.org/t/here3-inconsistent-low-sat-number/107842)**
>
> Hi! One of our drones is showing a weird discrepancy between the number of satellites for each Here3 receiver (sometimes 8 satellites while the other gets 16!). We’ve been using a dual Here3 setup since 2020 and I don’t recall any similar...