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  1. #1
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    Default Posturi de radio regionale pe Hispasat

    Cei care au placi dvb-s2,in special de la producatorul Tenow International Lts,cel cu modelul TBS6925,si altele,despre care s-a mai scris pe acest forum la sectiunea Placi DVB,pot avea placuta surpriza sa descopere unele frecvente cu symbol rate-uri mici,cum sint cele de acum cunoscute de la 16.0E,de numai 334 ks,care au programe de radio{olandeze}.Pe linga acest avantaj imens,o alta mica performanta a acestei placi e faptul ca tunerul stie sa citeasca banda de frecvente de numai 1 MHz,pe care o folosesc in special furnizorii de programe radio.Poate si tunerul altor placi dvb-s2,avind suportul lui CrazyCat,stiu citi frecvente atit de apropiate.
    O astfel de utilizare{economicoasa} a bandei de frecvente am intilnit si pe Hispasat,cind am fost surprins sa dau peste o frecventa,11650 MHz cu sr mic-499,care este listata pe FlySat si Lyngsat cu un pachet de servicii radio(patru),RTVE,cu symbol rate-ul 1010 Ks.Mi s-a parut ciudat ca pe acelasi transponder sa fie utilizat doua symbol rate-uri diferite,drept pentru care am luat la "pas"(scanat) banda de frecvente de la 11640 la 11650 MHz.Am descoperit ca,de fapt,erau folosite frecvente la distanta de numai 1 MHz,fiecare avind programe de radio,in total 4 transponderi:11647 V,11648 V,11649 si 11650 V cu acelasi sr-499.Asa am constatat ca pachetul RTVE este transmis la 11651 V,1010,3/4.
    De fapt aceste servicii de radio trebuie sa fi fost de mult ridicate pe satelit fiindca sint produse de acelasi producator spaniol,si anume:RTVE(Corporación de Radio y Televisión Espańola),si probabil criza din 2008 a obligat societatea de radio si televiziune sa recurga la economii,printre altele "inghesuind" posturile regionale pe aceasi banda.

    1.11647 V,499,3/4:R-1_Toledo si R-5_Toledo:

    2.11648 V,499,3/4:Rne1 Tenerife si Rne5 Tenerife:

    3.11648 V,499,3/4:R-1_Sevilla si R-5_Sevilla:

    4.11650 V,499,3/4:R-1_Valladolid si R-5_Valladolid:

    5.11651 V,1010,3/4:RTVE:


    M-am folosit de lnb Inverto alb cu flansa pe antena de 1.5 m si Inverto Ultra Black(fara inele scalare)cu antena offset de 1.1 m.Semnal bun pe toti transponderii cu ambele farfurii in zona mea,Clujul.

    satelescu

  2. #2
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    Default

    cum se numeste aplicatia din prima poza, cea cu pid-uri ?

  3. #3
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    Default

    Un mod interesant aditional/complementar de "cautare " la CrazyScan poate fi cu ajutorul celebrului deja stick RTL-SDR.
    Nu e chiar "profi" dar ...e o gaselnita si chiar una ieftina.

    A tool for Visualizing Broadcast Satellite Signals





    Conclusion

    It seems that the RTL-SDR is extremely useful as a tool to analyze signals which were otherwise “out of the league” of inexpensive data acquisition devices.

    In this case, we have managed to directly view the spectrum of the L-band IF from a satellite LNB, allowing us to see the signals which our satellite tuners will not decode.
    It’s not exactly that useful in the sense of receiving these signals as decoders have not been developed and parameters might never be known, but it’s still educational in the ability to visualize the challenges of satellite operation, and the diversity of transmission modes despite the DVB-S/DVB-S2 “dominance” in general.
    I can’t wait to see something “even better” appear in the future – more bandwidth, more dynamic range, and low price? Yes please! But for now, the RTL-SDR has me pretty damn chuffed.
    Link

    Succes la joaca, dragi copii!

    Last edited by 007/Ro; 6th May 2014 at 11:57.

  4. #4
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    Default

    @casuta,DVBViewer are un utilitar care se numeste TSAnalyzer.El iti ofera toate informatiile continute pe stream-ul unui transponder.

    satelescu

 

 

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