----------------------------------- Emil 06 Mar 2018 15:16 Stiri SDR ----------------------------------- Jusuf (Airspy) A facut urmatorul anunt I have some bad news. Rafael Micro officially discontinued the R820T2 since a few months. This is the tuner we use in the Airspy R2 and Airspy Mini. We tried to secure an extra batch from Rafael (even at a higher price) but the quality of the silicon of the samples we received wasn't very good and most units didn't pass our automated QA tests. Sacrificing the performance is out of question. The alternatives proposed by Rafael are not pin compatible and require both a significant hardware redesign and new tuner control code - and this is a large investment with very little guarantees on the final result. I can say this has been one of the longest running designs that resisted the new silicon tuner SDR's popping in and out while setting a standard for performance and price. For now, our distributors are running out of R2/Mini's very quickly and, until a final solution is found or a new replacement is designed, there won't be any new batches out. Deci pentru amatori faceti stoc ----------------------------------- Emil 16 Aug 2018 10:37 ----------------------------------- HYDRASDR PREVIEW: A 4X COHERENT RTL-SDR FOR DIRECTION FINDING, PASSIVE RADAR AND MORE https://www.rtl-sdr.com/hydrasdr-preview-a-4x-coherent-rtl-sdr-for-direction-finding-passive-radar-and-more/ Pare a fi interesant din punct de vedere al pretului, estimat a fi intre 99 si 149 US$ (probabil in functie de cererea de pe piata) si mai ales a faptului ca ofera din start 4 receivere interconectate (care pot fi extinse la 8 prin conectarea unui al doilea pachet). ----------------------------------- Erwin 16 Aug 2018 11:50 ----------------------------------- Interesant. Pentru ce vreau eu să fac, heliospectrografie, nu am nevoie de coerență pentru că cele 2,3 sau câte voi putea obține vor lucra în benzi diferite, intercalate, pentru a acoperi un spectru larg de frecvențe.