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stdevPavelmc / FAASGS

Fully Automatic Amateur Satellite Ground Station
GNU General Public License v3.0
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forecasts do not match #31

Closed Eric738 closed 3 years ago

Eric738 commented 3 years ago

Capturehoraires Hello Attached is a copy of two screens which confirm that the transit forecasts do not work for me with the same parameters. On the left forecasts generated by the distribution https://github.com/reynico/raspberry-noaa that I have been using for 6 months with receipt without problem. On the right, the forecasts generated which seem out of place .. and obviously no reception .. what do you think? eric

stdevPavelmc commented 3 years ago

Two possible issues:

Time / date on your device, and also the timezone

Some command to check

pavel@sbc:~$ date
jue 04 mar 2021 13:40:04 CST
pavel@sbc:~$ date -u
jue 04 mar 2021 18:41:01 UTC

Check you has the correct local and UTC time, you can fix the timezone with sudo dpkg-reconfigure tzdata and set the date and time as this:

pavel@sbc:~$ date -s "March 4, 2021 18:41:01"

Location missmatch

You need to set the coordinates for your QTH in the predict qth file /root/.predict/predict.qth

root@opi3:~# cat /root/.predict/predict.qth 
CO7WT
 21.xxxx
 77.xxxx
 100
root@opi3:~#

Watchout! there is a space in front of the Lat/Lon/Alt parameters, to sign it belongs to CO7WT

That's the equivalent for:

I wait for your feedback on this, cheers.

stdevPavelmc commented 3 years ago

Thinking now to add this steps in the readme as comments / instructions, the precise time source and the location setting.

stdevPavelmc commented 3 years ago

Added instructions for this case.

Please start over and follow the instructions with the new version.

Eric738 commented 3 years ago

GM Pavel

thank for your help : 2 things ..file predict.qth was empty in cat/root/.predict/predict.qth ok i send predict and make my setup..you know here latitude must be write with -5.8734..after i run sat.sh and i cann notice that predict are good and wrong screen copy ..how is possible ? hope help you.

Eric [image: fagss.png]

Le jeu. 4 mars 2021 à 19:52, Pavel Milanes (CO7WT) notifications@github.com a écrit :

Two possible issues: Time / date on your device, and also the timezone

Some command to check

pavel@sbc:~$ date jue 04 mar 2021 13:40:04 CST pavel@sbc:~$ date -u jue 04 mar 2021 18:41:01 UTC

Check you has the correct local and UTC time, you can fix the timezone with sudo dpkg-reconfigure tzdata and set the date and time as this:

pavel@sbc:~$ date -s "March 4, 2021 18:41:01"

Location

You need to set the coordinates for your QTH in the predict qth file /root/.predict/predict.qth

root@opi3:~# cat /root/.predict/predict.qth CO7WT 21.xxxx 77.xxxx 100 root@opi3:~#

That's the equivalent for:

  • CO7WT (me)
  • Latitude: 21.xxxx N
  • Longitude: 77.xxxx W
  • Altitude: 99.908 m (Above mean sea level)

I wait for your feedback on this, cheers.

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stdevPavelmc commented 3 years ago

Hi @Eric738

Did you still has the bad forecast problems?

Eric738 commented 3 years ago

yes ! after 24 h in reception no pic catch..is it possible to check the log ? with my other cfg (raspberry -noaa) and my second raspi all is ok. thank 73 Eric

Le mar. 16 mars 2021 à 20:09, Pavel Milanes (CO7WT) < @.***> a écrit :

Hi @Eric738 https://github.com/Eric738

Did you still has the bad forecast problems?

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stdevPavelmc commented 3 years ago

Please check https://github.com/stdevPavelmc/FAASGS/issues/31#issuecomment-790846977

The N/S of the coordinate system is not intuitive, maybe you are setting the position on the wrong place

Eric738 commented 3 years ago

i dont think , part of the forecast of passage, and another part, no .. in my opinion that can not be a coincidence. My problem at the moment is that on the passages ok, I would have liked to have the rx of sat noaa 73 Eric