... Constellation diagram measurement Satlink WS 6939 Digital satellite&terrestrial combo meter, DVB-S / DVB-T,satellite finderSpecifications4 ... :75 OhmDemodulations:QRSK,16QAM, 64 QAMTest:BER, C/N, FEC SignalQuality and strength,Multi-Channel SimultaneousMeasurementAuto ... 65DBM- 25dbminput resistance:75OhmSymbol rate:2Msps-45MSPSTest:BER,C/N, FECSignal Quality and strengthAuto Search, NIT SearchDiseqc ...