SEFRAM 7850 系列提供所有DVB-T,DVB-C, DVB-S 所需的测量功能, 拥有6.5英寸高解析的显示器可以显示所选频道的所有参数. 内建超快速的频谱分析, NIT, Cell-ID, checksat以及自动设置功能, 大幅节省了您调适天线所需的时间. 整机含电池重量仅为2.1kg, 加上小巧的外型使的7850系列产品成为野外测试的选择.

特点

6.5英寸彩色液晶显示器     重量仅2.1公斤     可显示电视节目图象     支持DVB-T，DVB-C，DVB-S及DVB-S2     超高速高质量频谱分析     OSD，PID支持     支持GPS     超高灵敏度
规格
Technical Specifications -- Terrestrial Band Satellite Band Frequency Range 45-865MHZ 950-2150MHZ   Resolution measure 25KHZ,display 1KHZ measure 25KHZ,display 1KHZ Level measurements Dynamic range 20-120dBuv 30-110dBuv   Noise floor level 5dBuV typical --   Units dBuV,dBmV,dBm,V dBuV,dBmV,dBm,V   Accuracy ±2dB±0.05dB/℃ ±3dB±0.05dB/℃   Resolution 0,1dB 0,1dB   Filters automatic with selected 100-300KHZ --   Input BNC 75ohm BNC 75ohm   Max.permissible voltage 80VDC,80Vrms/50HZ 80VDC,80Vrms/50HZ   Standards B,G,D,K,I,L,M,N,FM,carrier,C-OFDM PAL,SECAM,NTSC,DVB-S,DVB-S2,DSS   Measurements V,C/N,V/A1,V/A2according to selected standard RF,C/N Uitra fast spectrum analysis Sweep time 100ms typ.(10 times/s) 100ms typ.(10 times/s)   Filters automatic with selected span (100,300,1000KHZ) 1MHZ   Attenuator automatic with selected frequency 0to60dB/5dBsteps automatic 0to60dB/5dBsteps   Dynamic 60dB(10dB/div),30dB(5dB/div) 60dB(10dB/div),30dB(5dB/div)   Span 10MHZ to full span with 1,2,5steps 50MHZ to full span with 1,2,5steps Measurement map Capacity scrolling of 12 programs --   Display graphical or text -- Checksat mode 1 -- fast search of satellite,simple or double LNC   2 -- 30 satellites typical,with European database load   3 -- 4 transponders/satellite,can be modifies by user Memory saving internal,non,volatile memory internal,non,volatile memory   Data place,measure(level,BER/MER,Frequency map,...) place,measure(level,BER/MER,Frequency map,...)   Capacity 512Ko(max.1000files or floders) 512Ko(max.1000files or floders) Auxiliary inputs and outputs USB interface mini USB connector mini USB connector   Power supply jack 5.5mm,15Vmax,5Amax jack 5.5mm,15Vmax,5Amax Remote supply and control Voltage 5/13/18V,500mA max 13/18V,500mA max   Diseqc -- Diseqc1.2   22KHZ -- 22KHZ,Minidiseqc.toneburst Digital measurements 1 C-OFDM DVB-S,DVB-S2   Bit error ratio CBER(before viterbi)VBER(after viterbi)UNC CBER,VBER,UNC,LDPC,BCH,PER   Modulation Error Ratio(MER) 5-35dB 0-20dB   Symbol rate(1) -- 1-45Ms/s   Bandwidth 6MHZ,7MHZ,8MHZ --   Constellation automatic QPSK and 8PSK   Viternbi rate automatic     automatic   1/2,2/3,3/4,5/6,7/8,8/9,9/10(auto)   Standards(1) EN 300-744 EN 300-421 EN302 307   2 NICAM --   Frequency 45-865MHZ --   Standard B,G,D,K,I,L --   Error measurement BER(parity) --   Symbol rate(2) 728Kbits/s --   Standards(2) EN 300-163 -- TV picture display Analogue programs yes --   Digital programs(free to air) yes,C-OFDM yes