Sefram7851 DVB-T/S
SEFRAM 7850 系列提供所有DVB-T,DVB-C, DVB-S 所需的測量功能, 擁有6.5英寸高解析的顯示器可以顯示所選頻道的所有參數(shù). 內(nèi)建超快速的頻譜分析, NIT, Cell-ID, checksat以及自動設(shè)置功能, 大幅節(jié)省了您調(diào)適天線所需的時間. 整機含電池重量僅為2.1kg, 加上小巧的外型使的7850系列產(chǎn)品成為野外測試的*佳選擇.

特點 6.5英寸彩色液晶顯示器 重量僅2.1公斤 可顯示電視節(jié)目圖象 支持DVB-T，DVB-C，DVB-S及DVB-S2 超高速高質(zhì)量頻譜分析 OSD，PID支持 支持GPS 超高靈敏度 規(guī)格 Technical Specifications -- Terrestrial Band Satellite Band Frequency Range 45-865MHZ 950-2150MHZ Resolution measure 25KHZ,display 1KH measure 25KHZ,display 1KH 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 1 -- Input BNC 75ohm BNC 75ohm Max.permissible voltage 80VDC,80Vrms/50HZ 80VDC,80Vrms/50HZ Standards B,G,D,K,I,L,M,N,FM,carrie PAL,SECAM,NTSC,DVB-S,DVB- Measurements V,C/N,V/A1,V/A2according RF,C/N Uitra fast spectrum analy Sweep time 100ms typ.(10 times/s) 100ms typ.(10 times/s) Filters automatic with selected s 1MHZ Attenuator automatic with selected f automatic 0to60dB/5dBstep Dynamic 60dB(10dB/div),30dB(5dB/d 60dB(10dB/div),30dB(5dB/d Span 10MHZ to full span with 1 50MHZ to full span with 1 Measurement map Capacity scrolling of 12 programs -- Display graphical or text -- Checksat mode 1 -- fast search of satellite, 2 -- 30 satellites typical,wit 3 -- 4 transponders/satellite, Memory saving internal,non,volatile mem internal,non,volatile mem Data place,measure(level,BER/M place,measure(level,BER/M Capacity 512Ko(max.1000files or fl 512Ko(max.1000files or fl Auxiliary inputs and outp 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.toneburs Digital measurements 1 C-OFDM DVB-S,DVB-S2 Bit error ratio CBER(before viterbi)VBER( CBER,VBER,UNC,LDPC,BCH,PE Modulation Error Ratio(ME 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 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) --