15 replies to this topic

[DODINJO]

Please,is there any chance that we could have the feedback of the tuner signal level
even without a "LOCK" in some next version of OpenPLi?

[Robinson]

It is probably not possible with the drivers used in common Enigma2 boxes.

[DODINJO]

So the tuner drivers are responsible for showing the level of the signal ( SNR,AGC )?

I thought it must be some script or file in enigma 2 ( python )....

[Robinson]

And where do you think would the "script" or "file" take the necessary info from?

[DODINJO]

Yes...now it's getting more clear to me...finally.

What about switching the tuner drivers from the older ( gemini 2 ) image

with the new ( Open PLi ) tuner drivers?

Would it be possible?

 

Sorry for asking maybe dummy questions,but I am still quite an amateur in this.

[Erik Slagter]

Impossible.

[littlesat]

It would be nice to have a spectrum analyzer and waterfall on the ui... so you have a satfind/blindscan like software defined radiion(sdr)... but the tuners and/or drivers we have available do not support it...

Edited by littlesat, 28 January 2018 - 11:17.

[DODINJO]

Thanks guys for making this thing more clear now for me..

When I started trying to fix this on my Dreambox 8000 it seemed

for me it would be a piece of cake....now I realize it's quite the opposite...

 

I am afraid that,with all my regrets and sadness,I'll have to go back

from OpenPLi to my old prehistoric Gemini 2.

And I still consider OpenPLi as by far best image ever...

[Robinson]

And what does the old Gemini 2 offer which is better than the current OpenPLi?

[DODINJO]

Shows the tuner level signal ( in SNR and AGC ) even when there's no "LOCK".

Absolutely cruical for me ( and I guess for others while tuning the dish and LNB-s )

to see are you any close to get the signal.

When you have a toroidal dish with 20 LNB-s ( very much similar like @littlesat ),

you have to do a lot of tweekings,specially with some signals when you're at the edge

of a footprint.

Open PLi crashes all the values to "0" right after it losts the signal.

[Robinson]

OK, I understand.

That indeed would be great to be able to see signal strength before lock but I have never had that with any box.

My understanding, though, is drivers do not enable it so I am surprised that old drivers made it possible.

[Erik Slagter]

IMHO if you don't have a lock, the signal is already far below the minimum signal to noise ratio.

[DODINJO]

Not exactly....

To get a decent signal ( stable picture ),you need cca 34-35% SNR ( cca 6 dB ).

If you're close to get this,but still have no "LOCK",the numbers would jump arround

27-30% ( cca 5 dB ). Of course,with Gemini image...

Then you know with a bit more effort you should be able to reach for a "LOCK".

Either by tweaking a dish or LNB more precisely,or instal a better LNB,or,at the end,

go for a bigger dish.

[LraiZer]

Look at dvbsnoop signal ?

[DODINJO]

Wow...this looks quite interesting...

Although I have no idea could this be used in Dreambox images or does it

do anything with the tuner drivers?

But I will try to go deeper to find out about it...thanks!

[Robinson]

Start from installing it on your box.