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TBS5880 secret product

Re: secret product

Postby EnoSat » Sun Sep 30, 2012 1:24 am

mark Wrote:EnoSat,
do you get picture and sound on free t2 muxes? Which applications and OS do you use?


DVB-T2 in my country planned on 2013~2014 , DVB-T work ok but level and quality show 90% , momentary use WinXP.
Win10 , Intel(R) Core(TM) i5-7400T CPU @ 2.40GHz , 8 GB RAM
TBS 5925 , 5880 , 5520SE , 5220
EnoSat
 
Posts: 81
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Location: Slovakia

part1

Postby EnoSat » Sun Sep 30, 2012 2:19 am

steven Wrote:Hi EnoSat

The PID 8191 is the empty stream,You do not need to care about this. :)

Kind Regards

steven


actual situation with driver tbs5880.sys (ver-1.0.0.1) in DVB-T
signal 30dBuV show as Level-90 and Quality-90 , BLUE led , show actual pid`s in stream
signal 70dBuV show as Level-90 and Quality-90 , BLUE led , show actual pid`s in stream
signal 0 dBuV show as Level-10 and Quality-0 , RED led , but show pid 8191

level554vs570.png


level554.png


level570.png
Last edited by EnoSat on Sun Sep 30, 2012 2:26 am, edited 3 times in total.
Win10 , Intel(R) Core(TM) i5-7400T CPU @ 2.40GHz , 8 GB RAM
TBS 5925 , 5880 , 5520SE , 5220
EnoSat
 
Posts: 81
Joined: Sun Jun 06, 2010 6:04 pm
Location: Slovakia

part2

Postby EnoSat » Sun Sep 30, 2012 2:21 am

status on emty transponders:
show empty (non-exist) pid 8191 + after some time show fake pids

level762.png


level762_1.png


level762_2.png
Win10 , Intel(R) Core(TM) i5-7400T CPU @ 2.40GHz , 8 GB RAM
TBS 5925 , 5880 , 5520SE , 5220
EnoSat
 
Posts: 81
Joined: Sun Jun 06, 2010 6:04 pm
Location: Slovakia

part3

Postby EnoSat » Sun Sep 30, 2012 2:29 am

show status signal in another SW:

level_dvbv.png


level_prog.png
Win10 , Intel(R) Core(TM) i5-7400T CPU @ 2.40GHz , 8 GB RAM
TBS 5925 , 5880 , 5520SE , 5220
EnoSat
 
Posts: 81
Joined: Sun Jun 06, 2010 6:04 pm
Location: Slovakia

Re: TBS5880 secret product

Postby steven » Mon Oct 15, 2012 4:34 pm

Hi EnoSat

Sorry for the delay reply,About the signal quality ,we have not added the calculate of the level,
if locked the value is 90, if have not locked the value is 0,So this is why the value is always 90,
this is because DVB-T's signal is not like DVB-S.

Kind Regards

steven
steven
 
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Re: TBS5880 secret product

Postby EnoSat » Tue Oct 16, 2012 4:08 am

steven Wrote:Hi EnoSat

Sorry for the delay reply,About the signal quality ,we have not added the calculate of the level,
if locked the value is 90, if have not locked the value is 0,So this is why the value is always 90,
this is because DVB-T's signal is not like DVB-S.

Kind Regards

steven


and problem with no-signal ? showing pid 8191 (thread part-2)
Win10 , Intel(R) Core(TM) i5-7400T CPU @ 2.40GHz , 8 GB RAM
TBS 5925 , 5880 , 5520SE , 5220
EnoSat
 
Posts: 81
Joined: Sun Jun 06, 2010 6:04 pm
Location: Slovakia

Re: TBS5880 secret product

Postby crazycat » Tue Oct 16, 2012 4:13 am

but cxd2820 report correct SNR, RFLevel values (strenght), so can be used for some Strength/Quality calculation.

for example my implementation in StreamREaderEx-BDA + TSReader proxy source:
Image
Reception of DVB-T2,256QAM,3/5
Strength=SNR*2, Quality=f(BER). Maybe only RFLevel some incorrect (because i not have lookup table for AGC->RFLevel conversion)
Image
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Re: TBS5880 secret product

Postby steven » Wed Oct 17, 2012 2:10 pm

Hi crazycat

thank you very much for the Strength/Quality calculation, we will have a update about
this later. :)

Kind Regards

steven
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Joined: Fri Aug 06, 2010 3:23 pm

Re: TBS5880 secret product

Postby Thorium » Wed Oct 17, 2012 10:47 pm

@crazysat: any chance crazyscan2 will support the TBS 5880 box as well?
It works well with TBS 5925.
Thorium
 
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Re: TBS5880 secret product

Postby crazycat » Thu Oct 18, 2012 2:02 am

@Thorium: wait updated drivers with I2C-access.

P.S. And maybe i need some additional info about cxd2820r (proper RFLevel calculation, constellation monitoring) - so if somebody have this info - send me to e-mail or PM :)
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