... Analyzer Constellation diagram measurement Satlink WS 6939 Digital satellite&terrestrial combo meter, DVB-S / DVB-T,satellite finderSpecifications4.3 Inch High ... COFDMQPSK , 16QAM, 64QAMtransmission mode2K, 8KGuard interval1/2, 1/4, 1/8, 1/16, 1/32FEC1/2,2/3,3/4,4/5, 5 ... )Net weight0.56kg ws6939 /WS 6939 dvb-s&dvb-t combo satellite finder satlink ws-6939 satellite terrestrial signal finder meter