# Second QGC for monitoring / spotter

**URL:** <https://discuss.px4.io/t/second-qgc-for-monitoring-spotter/11821>\
**Category:** QGroundControl\
**Created:** [July 6, 2019, 5:02pm UTC](https://discuss.px4.io/t/second-qgc-for-monitoring-spotter/11821 "2019-07-06T17:02:46Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![taileron](https://discuss.px4.io/user_avatar/discuss.px4.io/taileron/32/4145_2.png) [@taileron](https://discuss.px4.io/u/taileron)\
**Post date:** [July 6, 2019, 5:02pm UTC](https://discuss.px4.io/t/second-qgc-for-monitoring-spotter/11821/1 "2019-07-06T17:02:46Z")

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what is the easiest way to have a second QGC connected to one vehicle for doing monitoring to the spotter or to show it easier to other people without access to settings and parameters.  
Currently the only way I could figure out, is to clone the screen to another device via wifi.  
But as soon as a video stream is included doubling the screen causes an awful frame rate and way too much latency.  
A few QGC instances can receive the same video stream without issues, but the telemetry content has to be routed to the slave QGC instances … how can this be done? The master platform always is mac os but it could run a virtual machine simultaneously to run any kind of proxy service. The QGC slaves could be iOS or Android.

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**Author:** ![DonLakeFlyer](https://discuss.px4.io/user_avatar/discuss.px4.io/donlakeflyer/32/3036_2.png) [@DonLakeFlyer](https://discuss.px4.io/u/DonLakeFlyer)\
**Post date:** [July 6, 2019, 7:15pm UTC](https://discuss.px4.io/t/second-qgc-for-monitoring-spotter/11821/2 "2019-07-06T19:15:45Z")

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Not possible other than setting up another full connection to the vehicle from a different computer.

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**Author:** ![taileron](https://discuss.px4.io/user_avatar/discuss.px4.io/taileron/32/4145_2.png) [@taileron](https://discuss.px4.io/u/taileron)\
**Post date:** [July 6, 2019, 8:15pm UTC](https://discuss.px4.io/t/second-qgc-for-monitoring-spotter/11821/3 "2019-07-06T20:15:33Z")

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a second full connection would be better than only one simultaneously.  
All my planes each use one ESP Mavlink Bridge V 1.2.2 with external antenna, PixFalcon uses an extras.txt entry to switch to 921600 bps  
Groundstation is a dualband router 2.4 G vehicles can connect to  
5 GHz to QCG connection includes the video stream coming from ethernet.  
How can I connect a further QCG instance to have the telemetry link as well - video already works perfect? Final goal is get a vtol below the magical 250 gram weight - so planes telemetry hardware should not exceed 3 gram.

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**Author:** ![rollys](https://discuss.px4.io/user_avatar/discuss.px4.io/rollys/32/2081_2.png) [@rollys](https://discuss.px4.io/u/rollys)\
**Post date:** [July 6, 2019, 9:28pm UTC](https://discuss.px4.io/t/second-qgc-for-monitoring-spotter/11821/4 "2019-07-06T21:28:01Z")

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[Epiphan](https://www.epiphan.com/products/) might have a video capture device you can use.

Good luck.

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**Author:** ![yanli\_taisync](https://discuss.px4.io/letter_avatar_proxy/v4/letter/y/46a35a/32.png) [@yanli\_taisync](https://discuss.px4.io/u/yanli_taisync)\
**Post date:** [July 8, 2019, 2:40am UTC](https://discuss.px4.io/t/second-qgc-for-monitoring-spotter/11821/5 "2019-07-08T02:40:40Z")

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ViuLinx module by Taisync can support multi-reception of video and downlink on the ground. One ground unit has full video/telemetry/RC. 2nd ground unit can work as monitor, receiving video and downlink telemetry. Up-to 7 ground units can work as monitors. Video can be output through HDMI to monitor, or through USB to Window/Linux/MacOS/Android/iOS platform.

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**Author:** ![JulianOes](https://discuss.px4.io/user_avatar/discuss.px4.io/julianoes/32/30_2.png) [@JulianOes](https://discuss.px4.io/u/JulianOes)\
**Post date:** [July 8, 2019, 7:19am UTC](https://discuss.px4.io/t/second-qgc-for-monitoring-spotter/11821/6 "2019-07-08T07:19:35Z")

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To forward MAVLink traffic to a second QGC you could use [mavlink-router](https://github.com/intel/mavlink-router). That way you split the incoming mavlink traffic to both ground stations.
