Signal graphs
#1
Hi All
I have now finished building the kit and in the testing phase. Things seem to be working but I see no output from my site on the maps. Also I tried switching to manual mode for gain etc (set at 10,10 hp on & off) as suggested in the forum but the signal graph is then empty of a trace.
I am getting the odd flash on the signal led - more so when looking at the graph in automatic mode.
I am getting a good gps signal but on the main status screen it says GPS NO and further down it says authentication no - I have put in my login details but that stays the same.
Any help would be gratefully received.
Regards
Alan
Stations: 2004
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#2
(2017-09-15, 17:48)Alanpenwith Wrote: Hi All
I have now finished building the kit and in the testing phase. Things seem to be working but I see no output from my site on the maps. Also I tried switching to manual mode for gain etc (set at 10,10 hp on & off) as suggested in the forum but the signal graph is then empty of a trace.
I am getting the odd flash on the signal led - more so when looking at the graph in automatic mode.
I am getting a good gps signal but on the main status screen it says GPS NO and further down it says authentication no - I have put in my login details but that stays the same.
Any help would be gratefully received.
Regards
Alan

1. you have a lot of noise.... maybe still too close to computers, etc.
2. you DO have GPS connected?  It won't send without it...
3. 20mm H field ferrites are pretty small. recheck your station configuration page on main BT site...
4. get the antennas away from any interference sources...


Stations: 689, 791, 1439, 3020
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#3
(2017-09-15, 17:48)Alanpenwith Wrote: Hi All
I have now finished building the kit and in the testing phase. Things seem to be working but I see no output from my site on the maps. Also I tried switching to manual mode for gain etc (set at 10,10 hp on & off) as suggested in the forum but the signal graph is then empty of a trace.
I am getting the odd flash on the signal led - more so when looking at the graph in automatic mode.
I am getting a good gps signal but on the main status screen it says GPS NO and further down it says authentication no - I have put in my login details but that stays the same.
Any help would be gratefully received.
Regards
Alan

Hi Alan, Welcome, Here is the latest Picture from the net.

   

Big Grin Yes 20 mm doesn't look right 20 cm perhaps?

In manual I started at about 8 and 5 for the gains and 125 mV for the trigger threshold it seemed to be a good place to start.  Smile

Brian.
Stations:
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#4
Thanks - I have shielded the ferrites to see if it makes a difference. I also realise that the patch cable to the antenna is not shielded so that is on order.
One other odd thing - if I view the controller status the gps led stops flashing after a few minutes and the system locks up. Closing the controller causes a reboot and all then works.
I am still not seeing any trace on the signal graph in the manual setting - ok on automatic.
Alan
Stations: 2004
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#5
(2017-09-16, 12:42)Alanpenwith Wrote: Thanks - I have shielded the ferrites to see if it makes a difference. I also realise that the patch cable to the antenna is not shielded so that is on order.
One other odd thing - if I view the controller status the gps led stops flashing after a few minutes and the system locks up. Closing the controller causes a reboot and all then works.
I am still not seeing any trace on the signal graph in the manual setting - ok on automatic.
Alan

Hi Alan, Can you set all the channels to "do not send" and try one channel at a time. Your latest signal is still has a lot of interference and you have a lot happening at 40 and 80 KHz that seems to be swamping everything. There does appear to be some real signal in there as well, but it is pretty hard to work out what is going on in all of the clutter.

   

Brian.
Stations:
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#6
Hi
I just have channel A set to normal B&C to don not send. Still getting the freeze when using controller (with Google Chrome).
Thanks for the input
Alan
Stations: 2004
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#7
(2017-09-16, 13:42)Alanpenwith Wrote: Hi
I just have channel A set to normal B&C to don not send. Still getting the freeze when using controller (with Google Chrome).
Thanks for the input
Alan

OK Alan That is a bit Clearer.

   

I am going to hazard a guess and say switched mode psu. However there are two different sources of interference.

   

Maybe there will be someone about who is better able to help identify those.

If you have a different PSU handy, that might be the first place to start, to see if you can get a clean bare board with everything running and no interference.

As you seem to have a problem with the GPS, it may be as well to disconnect the amps for the moment and see if you can get that set up, then when that is working, proceed with the amps one at a time.

In my experience, trying to solve more than one problem at once is not normally very successful.

Brian.

Edit, You have changed something while I was typing?

   
Stations:
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#8
Alanpenwith,
the signals from your station only show a strong noise. Try to check the input voltage like this:
Blitzortung.org browser interface of your receiver -> Signals -> Signal tools -> select V_in -> start
and check what you get. If the graph looks like what you got as "signals", the power supply is the problem.
Stations: 1836
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#9
(2017-09-16, 12:42)Alanpenwith Wrote: I also realise that the patch cable to the antenna is not shielded

This won't help, at all. Are you in interference mode most of the time?
Stations: 1075, 1472
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#10
Hi
Yes I am getting interference all the time but the problem now is that as soon as I try to view the controller the gps led goes out and the station freezes. It has got worst since I upgraded to firmware 8.3 but I can't get into the controller long enough to try going back to 8.2.Until I go into the controller the the system appears to be working properly and sending data to the server.
Regards
Alan
Stations: 2004
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