Posts by satesco

    ...

    10980 V,6362,3/4,32APSK,ACM,GS-new symbol rate(@DX Süvi on FS),

    ...

    10980 V has left,

    10995 V,17000,8/9,16APSK-GS,not new,@DX Süvi on FS,

    11539 H,1200,3/4,32APSK-GS,new(?),North Africa beam,

    11657 H,7500,5/6,S2,ACM-GS,new,North Africa beam


    Quote from VictorLS

    6902se can show gray Signal/Noise >0 dB without lock when frequency, polarization and SymbolRate are known (i.e. TBS 5520SE on Si2183 demodulator can't):


    The signal at 11290 H must be at least 12dB/78% for the card to work normally.In general the 8/9 fec is not user friendly to lock the weak signal,and this transponder has only 11dB,which is not enough. But even at 12dB,you will have a high ber and artifacts.It is a signal at the limit.

    I tested the same signal at 11290 H with cards 6983 and 116902se with the AltDVB player. The result is the same with both cards at 12dB on this transponder.

    At this Fec-8/9,codec-HEVC,also 8psk,you need some signal reserve to be sure the card works well regardless of the card used.

    The comparison between the two cards I made is conclusive from my point of view, because 6983 and 6902se are the best performing dvb cards in terms of signal sensitivity. At least the ones I tested.


    Of my receiving equipment, apart from my 1.50m,which I have to admit is amateur made in the 90's, which I am happy with, I have to add the polar mount. With it I can move the antenna from an eastern to a western end without any problems. The polar mount rests, as you can see from the picture, on a hoop I took from a tractor and adapted for my antenna and mount.

    What's interesting about the mount in the picture is that all angles (elevation, offset, etc) can be fine-tuned with the help of a single wrench. Such a mount helps a lot and doesn't create problems at very low elevations, as with many antennas that have user-made mounts but often fail to go down smoothly at low elevations.

    Because of the building regulations, it is forbidden to install antennas directly on the roof surface, so I installed the antenna on a wall. Also because of this regulation, I can not install larger antennas, as I would like. Because of this the reception performance is not great either.

    The antenna is fixed to the wall on a bracket with several support points (arms), as can be seen in the picture, which can be dismantled piece by piece.And for more than 20 years it has withstood so much weathering and mechanical stress.

    The bad part is that although the antenna is open to all positions on the arc, it is in the proximity of many mobile antennas, which reduces its performance, especially in C-band, and the distance from the antenna and my receiving devices is 85m.


    I should have said at the beginning of this presentation that the tbs6902se has two tuners, like its predecessor, the 6902. As with most tbs satellite cards, these tuners allow the user to watch a TV programme with one tuner and record another channel from another satellite.

    First of all, I was interested to check if and how the two card tuners work simultaneously when I connect them to two satellite signal sources.

    The first tuner,0,I connected to Astra from 19.2E and scanned it with Crazyscan, and the second tuner,1,with another coaxial cable, I connected to Eutelsat 5.0WB at 5.0E and scanned it with the same application. I chose this satellite on purpose because, as we know, here are MIS(MultiInputStreams) transmissions, which have PLS codes, from Italian and French providers.

    As I expected,in the first scan test with the 6902se card, the simultaneous search and lock of the signal on the transponders found on the two satellites was almost instantaneous. Almost 17 sec with the first tuner, on the chosen range,10700-11700 H,and with the second tuner, at 5.0W,the signal lock time took almost 19 sec. This is the fastest satellite signal search and lock time a dvb card has achieved, even more so when two tuners were used simultaneously. At least of the ones I tested.



    I went further and checked if both tuners were working simultaneously with the same applications (Crazyscan and VLC) on the two satellites to which the card was connected. As you can see from the picture, both tuners were working perfectly at the same time and the two TV programs from two different sources were running smoothly.




    Of course I couldn't ignore the test with one of your players. I chose for this, the AltDVB player which has no problem running two TV programs at the same time. And as you can see, both channels from 19.2E and the 5.0W were working perfectly.



    Some of the developers of dvb applications neglect their creations. I mean they don't update them to the new technologies that the latest demodulators are equipped with. One such developer is the one who developed the DVB Dream player. He seems to have abandoned it, but despite that, the player works with the tbs6902se card. Blindscan is based on the older library of CrazyCat. I checked the player with blindscan and had it scan Turksat from 42.0E.To my surprise, this function worked well with the tbs6902se card.It found new transponders, memorized new programs and did almost what the Crazyscan application does.



    I got some questions in pm about tbs6522, but because they're of general interest, I thought it best to make that answer public.

    I answer punctually with examples of the following questions:

    1. The tbs6522 card supports several standards,namely:DVB-S2X/S2/S/T2/T/C2/C/ISDB-T having four RF In tuners which they can be used independently or simultaneously.

    With one tuner you search and scan Cable programs, and with another you can scan Satellite transponders at the same time:



    Also tbs6522 has full support for RFScan,BLScan,IQScan,SignalInfo feature,Cable, Satellites and Terr:



    It must be said that the tbs6522 has hardware support for pls and plp functions, so it can scan MIS and T2-MI transponders, and with the dvb players(AtDVB,DVB Dream,etc),you can watch these streams.

    Here are some examples of MIS at 5.0w and T2-Mi at 54.9E with the 6522 card:



    When scanning at 54.9E,tbs6522 also found a transponder with the S2X extension, which is no surprise, knowing that this card supports the dvb-s2x standard:12730 H,12000,23/36,(S2X)16APSK,0.15.



    Among other things, the tbs6522 card can directly scan cable frequencies with the VLC player and then watch TV programs:



    I hope to help those interested in this card.:3:





    4.

    Another important feature that I checked on the 6590 card is the symbol rate. The Manufacturer

    gave its value to be between 1-45 Msps. In other words, the manufacturer gives no guarantee for

    small SRs and in practice, the 6590 responds differently when symbol rates are under the value of

    1000 Ks. At times, I managed to lock signal at around 500 Kps symbol rate, at other times, I failed to

    do so. I hoped to be able to lock an SR of 256 Ks when the signal appeared on the bar, but it was not

    to be. It would have been too much to ask for lock at such low value of the symbol rate and the

    explanation is very simple: The card was designed and manufactured to be used for multi standard

    reception of tv programs, that is, for viewing tv programs and not for very low SR signals.

    Mention should be made that I had not difficulty with tbs6590 when I tried to switch satellite by

    using the diseqc EMP Centauri switch on 16 lnbs toroidal antena. Switching from one satellite to

    another was normal, as was the case with cards that I tested.I noticed a short delay on switching

    only when the signal was weak. I have to say that I did not test disecq 1.2 for moving the antenna. In

    any case the card comes with connecting cable for just such an operation (for added security in its

    long term use).

    So far we have reviewed and tested a number of basic features of the tbs6590 card which we also

    find on the 6522 model (S2X extension, etc.); now we have to see the novelty that the card brings,

    i.e. the two CI slots for CAM (ConditionalAccesModul). This is not a novelty when it comes to cards

    but providing the 6590 with this Interface is welcome.

    I tested the reception of two roumanian packages, Freesat (16.0E) and FocusSat (1.0W). First, using

    the Conax access module and a valid Freesat card I tried to view coded programs on DVBDream

    player.

    Inserting the CAM in the slot was very easy, and when physical contact was established between this

    and the device, a led was switched on, telling us that the two components are connected (through a

    slit of the fan, I could check whether the led was on, signalling that the module was in the right slot).

    Very important notice: never insert or remove the CAM from the CI slot while the computer is on,

    because there is a risk for the card to be destroyed.

    At first try, I detected no "light" from the coded program. I had to access the DreamDVB player

    manually to activate (by checking) the TBS CI module on the player list of modules. Once it was

    done, the first coded channel opened, followed by the rest of the package. I detected no delays on

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    switching from one coded channel to another. In this respect there is no difference in decoding,

    compared to the other devices carrying CAM.

    For the second CI slot of TBS6590 card I used a Conax module and the FocusSat smartcard, choosing

    at random a program from tv packages broadcast on Thor at 1.0W, using the same DVBDream. The

    program chosen at random (TVR1) was decoded instantly.

    For the simultaneous reception of coded packages on the two satellites, I chose a DVBViewer player

    for Freesat package and DVBDream player for Focus package. From the menu of both players I chose

    the CAM decoding interface in order to obtain all the information that they and the smart cards

    contained. Having the proper modules and smartcards in both slots of the card, I could choose and

    view simultaneously coded channels from both packages. I also made a direct recording with the

    player, while watching a program in real time on the other one. Switching from one coded channel

    to another was fast, with no delay, as was the case with CI receivers.



    As I had a CAM Diablo light at my disposal, I also tested it on the TBS6590 card. I encountered no

    problems, as the card detected and I could watch coded programs, either from Freesat or from

    Focusat by using one of the Conax smartcards. In the absence of the necessary CAM and Smartcards,

    I was unable to test other coding systems from other program providers; I am certain nevertheless

    that they can be used without any problems.

    Of course I tried to make some tests with smartcard CI+ from Digi TV in order to decode coded

    programs broadcast by cable by using tbs6590 card but all my attempts were unsuccessful. I later

    learned from the manufacturer that the 6590 card has no support for CI+ (at least not for Windows).

    After running many tests on the tbs6590 card, I can say that it is meant primarily for buyers who

    wish to receive and view simultaneously tv programs broadcast in several standards, satellite, cable

    and terrestrial. It is not meant to be used by those in search of weak signal or special reception. It

    however has capabilities similar to the professional cards, such as the reception of 16PSK feeds or

    multistream broadcast. The manufacturer optimized the driver, so that access to different

    broadcasting standards is done more easely and safely, without the glitches that we encountered

    initially with the 6522 card, which were later remedied. Flexibility and ease of use, regardless of the

    standard employed, are the strong suits of this card, to which we can add the two CI slots.

    Concerning the latter, I was pleasantly surprised that the two CAMs, used simultaneously on these

    two slots, did not warm up, even after hours of use.

    If I were to mention a weakness,this would be the fact that the manufacturer did not provide a CI+

    support on Windows, perhaps for licensing reasons(?).


    ps_Although the tbs6590 is two years old, I have been asked by some enthusiasts to say a few words about this card. Because I don't have time to present it anymore, I thought that some of the comments I made in an older review are still valid.That's why I'm posting it hic et nunc._

    3.

    Switching from one channel to another on one of the players was done quickly, and on the other

    player somewhat more slowly but, once it was accessed the program ran smoothly and quite well,

    without interruption or microcubs. The slow switching from one program to another on one the

    players I considered to have been caused by the players both using the same computer capacity.

    The salient point for those interested in this card is its capacity to receive multistream signal,

    especially Italian and French packages from 5.0W, but also tv packages from other satellites, such as

    12.5W, 4.9E or 39.0E.



    It should be noted that locking signal on the Crazyscan signal on multistream transponders is done

    only manually. Of course,it is mandatory to enter the correct PLS code into each transponder while

    scanning. When you are not sure that you have signal on a multistream transponder, Crazyscan is

    indispensable. It will show immediately whether the tuner was initialized for satellite or whether the

    chosen transponder has a useful signal. Once each transponder with its respective code is

    memorized, dvbs players can play tv programs directly, as soon as they are switched on. Nothing

    further needed to be done, and thus, switching from one channel to the other was done as quickly

    as with a common transponder. TBS6590 has an option for watching multistream programs.

    Untill recently, for viewing multistream packages broadcast on T2-MI standard using PLP protocol

    such as the two transponders from 4.9E (12180 and 12341 GH) but also other transponders from Ku-

    band, (for instance from those 53E) you needed to have special application-4T2 Content Analyser.

    Luckily, given the increased interest of users for such a standard T2-MI, some developers of DVBs

    applications have broadened the area of utilisation of this application so that now they can lock scan

    and memorize multistream packages directly with DVBs player. Such a player is SmartDVB which I

    used to memorize the MIS Zeon Package from Astra 4A (4.9E) on 12.188 MHz, H, 30000, 5/6, DVB-S2

    8SK, T2-MI and 12341 H, 30000, 5/6, DVB-s2/8PSk, T2-MI. All tv channels could be memorized and

    then viewed without problems.