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Sefram7851 DVB-T/S
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最佳选择.
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 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)
--