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Re: [Paparazzi-devel] Why GCS stops sending telecommands, if telemetry i

From: Felix Ruess
Subject: Re: [Paparazzi-devel] Why GCS stops sending telecommands, if telemetry is lost?
Date: Mon, 26 Oct 2015 10:20:46 +0100

See also the -ac_timeout option of link (show help with sw/ground_segment/tmtc/link -help)


On Mon, Oct 26, 2015 at 10:13 AM, Christophe De Wagter <address@hidden> wrote:
this is a feature in .... default is not to upload anything anymore when there is no download.


On Sun, Oct 25, 2015 at 8:59 PM, Refik Sever <address@hidden> wrote:



If the telemetry is gone, GCS waits for 5 seconds and then stops sending telecommands. 


If the telemetry does not work, then we can not know whether the telecommand is arrived to the plane or not. Therefore, it may be useful to stop sending telecommands. But in some cases, it may be good to send a telecommand to plane, althoug there is no telemetry.


We are using Xbee868 pro. We decreased the power of XBee at the plane to 25mW, and the power of Xbee at GCS is 300mW. If the plane goes far, then the telemetry messages will not arrive to GCS. However, we want to continue sending telecommands to the plane, although we can not get telemetry.   


Why is it implemented like this?  How can we modify it, in order to send a telecommand without getting telemetry?


We are using v5_0.





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