15 replies to this topic

[sleepy]

Dear all,

I am changing receiver and testing things I could not do with my previous receiver (DB 7020 HD).

 

I am interested, as many here, in multistream channels.

 

I am trying on 5W at the moment, which has the strongest signal.

 

I am trying on 2 sides:

 

- The FBC S2x tuner by GB (it is the right newer one, the 45308X, capable of tuning MS signals)

- A TBS5925 USB tuner which I already successfully tested driving it by a PC (but having everything integrated on the GB would be convenient).

 

Well, the internal tuner bt GB never locks a signal on latest OpenPLI 7.2.

I tried with the latest Techblue software and I managed to only get very unreliable locks.

 

I downloaded the drivers from the plugins repository and the TBS tuner locks easily on each channel with 16 dB SNR, but then no channel is shown on TV, nor a scan reports any channel on the transponder.

Same happens on FTA normal channels on Hotbird. Reliable lock, but no channels during scans, nor image given.

 

So I am bit stuck and maybe I am doing or missing to do something stupid.
I have been googleing around, but I could not find any solution, whichever I tried, therefore I now come to ask here, if anybody is so knowledgeable and kind to give me some hint.

 

I thank you in advance for any help!

[Pr2]

Tuners sensitivity may vary so yes it can happens.
Moreover to be able to properly received MIS you need an excellent pointing of your antenna. Especially for the French channels on 5W Italians channels are more easy to receive.

[sleepy]

Tuners sensitivity may vary so yes it can happens.
Moreover to be able to properly received MIS you need an excellent pointing of your antenna. Especially for the French channels on 5W Italians channels are more easy to receive.

I am using a 1.8 m Channel Master and the TBS on the very same cable and channel is reporting 18.6 dB SNR, which is huge, kind of a record for me (if only I could at least see something through the TBS connected to the receiver...).

 

I would not expect such a big difference.

 

Moreover, the same receiver receives the crypted standard French channels with 100% quality.

 

Everything can happen, but this would sound very strange to me.

[Binsche]

 

I am trying on 2 sides:

 

- The FBC S2x tuner by GB (it is the right newer one, the 45308X, capable of tuning MS signals)

 

Well, the internal tuner bt GB never locks a signal on latest OpenPLI 7.2.

 

What do you tried there?

 

You know, that you have to give manually the tuner all correct parameters (mis id, pls mode and pls code) for tuner-lock? (at satfind plugin or for a manual scan)

Or you are using a satellites.xml with all correct parameters...

 

are you absolutely sure that there is a bcm broadcom 45308x with gigablue support?

here (in shops) i can find only dual/twin dvb-s2x mis tuner for gigablue (or single), but no one fbc

 

screeshots have been taken with DM920 and TBS-6905 at 1,1m dish near munich. only for the purpose of the signal quality

Attached Files

•  screenshot.jpg   86.98KB   8 downloads
•  screenshot2.jpg   62.25KB   7 downloads
•  screenshot3.jpg   56.42KB   7 downloads
•  11509h_5w.png   765.8KB   6 downloads

[sleepy]

 

What do you tried there?

 

You know, that you have to give manually the tuner all correct parameters (mis id, pls mode and pls code) for tuner-lock? (at satfind plugin or for a manual scan)

Or you are using a satellites.xml with all correct parameters...

 

are you absolutely sure that there is a bcm broadcom 45308x with gigablue support?

here (in shops) i can find only dual/twin dvb-s2x mis tuner for gigablue (or single), but no one fbc

 

screeshots have been taken with DM920 and TBS-6905 at 1,1m dish near munich. only for the purpose of the signal quality

 

Dear Binsche,

 

of course I know all the parameters that must be inserted.

 

As I wrote, I already managed to tune the MIS channels with the TBS 5925 form a PC. Using the very same tool you showed in your picture to analyse the constellation.

 

But it is not very convenient to switch from PC to sat-receiver and I would love to be able to tune the channels directly on the GB (with internal tuner or with the TBS).

 

I am using on my GigaBlue quad UHD DrHannibals settings for convenience, since they already all the parameters already in the list.
Nevertheless, I have also tuned completely by hand with the same results.

With OpenPLI no signal at all. If I switch to the software suggested by Gigablue (based on OpenPLI), I can get some sparse locking, meaning that the tuner is capable of receiving MIS, but I cannot get a good lock.

Of course, it can be anything. Also that my particular tuner has some flaw and while receiving well standard transponders, then fails on MIS. Or that my dish provides not good enough signal (but I am getting very strong signal from on all standard channels on this sat and on my TBS receiver, see below).

 

The receiver information reports that I have a 45308x FBC tuner, built and soldered in the GB by the producer, not an added tuner (I still have a free slot for that).

 

Also, the TBS driven by the GB and its settings locks perfectly and instantly, with 18.6 dB SNR when attached to the GB.

But I cannot then watch anything. I cannot watch MIS, nor a very normal channel on Hotbird. Therefore, in this case there must be a problem in the interfacing between the TBS and GB.

So it locks (any channel, MIS or normal), but no picture in this case.

 

 

Of course, I will welcome any solution, on the TBS or on the GB side!

 

Thank you in advance!

Edited by sleepy, 22 December 2019 - 12:18.

[Pr2]

As I already told you, you need a very good pointing to receive French FTA MIS channels.
I had face the problem myself so I talking by experience.

First try to get the Italian MIS channels they are more easy to receive and you will be sure that your tuner is MIS capable.

I was also able to receive properly all the DVB-S2 channels and the Italian MIS ones but I cannot get the French ones until I adjust my antenna.

[jpuigs]

 

screeshots have been taken with DM920 and TBS-6905 at 1,1m dish near munich. only for the purpose of the signal quality

 

 

 

Which skin is it ?

[Binsche]

@sleepy,

 

if you got really a signal with 18,6dB on TBS tv-card (on 11509H, S2/8PSK 8/9 29500), so that is good 7dB above the minimal SNR value for trouble-free reception.

for DVB-S2/8PSK with forward error correction (FEC)  8/9 is approximately needed theoretically 11dB.

if i turn my motorized 1,8m sat dish away from the max signal on 5°west, so there is given a trouble-free reception already with 11-12dB. with best alignment i got about 18-19dB.

in my opinion there is no problem with your dish alignment, rather there is a problem with your Gigablue receiver (software or hardware).

 

i have one request for you, please go with FTP to the Gigablue box and from directory /var/volatile/log download the "dmesg", complete dmesg.txt and upload this text file here.

 

screenshots this time from Edision Mio4K with OpenPLi Release 7.2

below 11dB there are clear disturbances:

 screen0.jpg   185.98KB   7 downloads

 

above around 11dB there are no more pixel errors:

 screen1.jpg   114.12KB   6 downloads

 

and with best dish alignment:

 screen2.jpg   176.8KB   5 downloads

 

 

@jpuigs

the picture/screenshot in the post before shows my personel mod of a CiNo skin called "OE2.2-Cino-Blue BlaSkin-HD for Dreambox"

 

best regards

[jpuigs]

thanks.

[sleepy]

Thank you. I am examining everything deeper (the TBS, also with my DB 7020HD, at least for standard channels) and everything for other sats such as 9E (if it depends on pointing issues, 9E may be better of 5W, whichever is the relative EIRP of these transponders).

 

I have mostly tested with RAI MIS muxes these days, though. I used the standard French channels as benchmark to check if signal was coming through (they were at full scale, never seen this not even on Hotbird, though I mostly tune it through a mere 90 cm dish).

 

Cheers!

[sleepy]

Dear all,

what has started must be concluded.

 

One year ago I was trying to catch multistream signals with no success.

I decided to make more investigations to understand where the problem was.

 

Eventually, after many checks and thoughts, I bought an additional S2X tuner for my Giga.

And I instantly began receiving all multistream signals.

Also the French ones at 5W, which have a "nasty" FEC parameter.

Everything coming in 100% quality.

 

Only last difficulty was the OpenPLI software, which would not allow me to configure in a convent way the tuners (I have 2 dishes, as many here, and the switching between the 2 input ports was not working as desired. since the settings file was not correctly rewritten).

Solution: download the /enigma2/settings file (backup just in case), erase all nims lines, init 4 to stop enigma, upload, reboot (or init 3), reconfigure from scratch (easy).

 

So, questions solved. I had a bad tuner in the box, as Binsche was suggesting, but it took some time to check the whole system (interleaved with daily duties).

 

Sleepy

[asif butt]

helo pls  help me  need my box 

Gigablue Quad 4K  OpenPLi » Test builds

[sleepy]

What is your specific problem?

[Frenske]

 

helo pls  help me  need my box 

Gigablue Quad 4K  OpenPLi » Test builds

 

You might ask GB why they are more difficult to find.

[ricki]

I have a Gigablue Quad 4K, the first gigablue and the last one never a gigablue more.

[Frenske]

I have a Gigablue Quad 4K, the first gigablue and the last one never a gigablue more.

 

The choice of never ever buying a specific brand anymore is always a personal choice. But somehow I understand your choice.