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+--- Thread: System Blue - Digital Filter Pin 1 Identification (/showthread.php?tid=1816)
RE: System Blue - Digital Filter Pin 1 Identification - Patrick - 2016-07-20
Hello Delande
my station is up and running since 2 days
and i guess i have too high noises and have to make some improovments. but which one
in a few day i'll get the Voltage regulator extension for the PCB-21 - dont know if that will decrease my noise-Level or not.
my actual settins are like in the picture below:
on Channel A i have 36 - 66 mVpp
on Channel B i have 17 - 24 mVpp
on Channel C i had 13 - 14 mVpp - but this morning i had 320 - 440mVpp so that i decrased the Gain till i had 15 - 20 mVpp.. in this case the noise is variable..
are those levels high? or ok?
but sure i'll ground the controller and hope the noise will go down.
my power-supply is quite normal and i think it isnt that "clean and silent". could you recomand me a clean and silent one?
thx a lot
Patrick
RE: System Blue - Digital Filter Pin 1 Identification - Jorgeminator - 2016-07-20
(2016-07-20, 10:57)Patrick Wrote: Hello Delande
my station is up and running since 2 days
and i guess i have too high noises and have to make some improovments. but which one
in a few day i'll get the Voltage regulator extension for the PCB-21 - dont know if that will decrease my noise-Level or not.
my actual settins are like in the picture below:
on Channel A i have 36 - 66 mVpp
on Channel B i have 17 - 24 mVpp
on Channel C i had 13 - 14 mVpp - but this morning i had 320 - 440mVpp so that i decrased the Gain till i had 15 - 20 mVpp.. in this case the noise is variable..
are those levels high? or ok?
but sure i'll ground the controller and hope the noise will go down.
my power-supply is quite normal and i think it isnt that "clean and silent". could you recomand me a clean and silent one?
thx a lot
Patrick
Show us a screenshot of your signal graph. Let's see what sort of noise you've got. Apple power supplies, especially the 2.4A, are nice.
The voltage regulator extension will most likely not improve the noise levels.
Where do you keep your station?
RE: System Blue - Digital Filter Pin 1 Identification - Patrick - 2016-07-20
now i groundet the controller by using a 240V power point - but almost nothing changed.
i also changed the power supplies with the one from my iPad - it seemed to be even worst - so i changed it back to the one i used before.
the antenna 3x20cm ferrite is in the garden, 10m from the house an the controller is on the terrasse which is covered whit glas. near the controller is a 240V power point and a weather-station from oregon scientific Systems.
in the picture my actual Settings and some signals.
thx a lot
Patrick
RE: System Blue - Digital Filter Pin 1 Identification - kevinmcc - 2016-07-26
Today I installed the filters and jumpered J0.
The guide says you can adjust the filters, but I do not see anywhere to do this.
RE: System Blue - Digital Filter Pin 1 Identification - Eric.Wouters - 2016-07-26
when the board recognises the filters it will add a menu under the amp concerned. In there you can set the cutoff frequency
RE: System Blue - Digital Filter Pin 1 Identification - chubros - 2016-09-08
Sorry for interrupt. Could anyone spot the j0 jumper on new blue(green board)?. I cant see it so far. (Or i need a new pair of glasses
)
RE: System Blue - Digital Filter Pin 1 Identification - RichoAnd - 2016-09-08
...................
RE: System Blue - Digital Filter Pin 1 Identification - chubros - 2016-09-08
Thanks Richo. I allready order a new pair of glasses..
RE: System Blue - Digital Filter Pin 1 Identification - Polyphemus - 2016-09-14
Hello,
I added one filter IC for the E-amp channel, I soldered J0, but I don't see the extra filters menu... What am I doing wrong?
RE: System Blue - Digital Filter Pin 1 Identification - kevinmcc - 2016-09-14
(2016-09-14, 19:18)Polyphemus Wrote: Hello,
I added one filter IC for the E-amp channel, I soldered J0, but I don't see the extra filters menu... What am I doing wrong?
You may have to update the firmware.
Older versions did not have filter menu.