化工儀器網
產品簡介
特點
·測試接收機于軟件相結合對GSM900/1800/1900 、ERMES、DAB系統的干擾參數進行檢測和分析
·緊縮式設計
·是很好的工具：網絡優化和擴展/服務/質量監控/發現并解決故障/基站計劃
·測試接收機于軟件相結合對GSM900/1800/1900 、ERMES、DAB系統的干擾參數進行檢測和分析
·緊縮式設計
·是很好的工具：網絡優化和擴展/服務/質量監控/發現并解決故障/基站計劃
詳細介紹
PCSD羅德施瓦茨測試接收機| R&S
特點
·測試接收機于軟件相結合對GSM900/1800/1900 、ERMES、DAB系統的干擾參數進行檢測和分析
·緊縮式設計
·是很好的工具：網絡優化和擴展/服務/質量監控/發現并解決故障/基站計劃
技術指標
Basic unit
Graphics
Built-display 8" colour TFT LCD,VGAstandard:640×480 pixels
For external monitors max.1024×768pixels
Mass storage
Internal hard disk >250 Mbyte
PC card exchangeable disk >100 Mbyte
Disk drive 31/2,1.44Mbyte
Interfaces
Serial 3×RS-232-C(eg mouse,GPS)
Parallel 2×LPT(egprinter,external trigger)
PC card 2×5-contact connectorfor MF2 key-board
Keyboard
General data
Power supplyAC 100 to 120V±10%,47 to 440 Hz,max.4 A and 220 to 240V±10%,47 to63Hz,max.1.3A
DC 10 to 28V
Dinensions(W×H×D);weight 427mm×236mm×460mm;15kg
Channelimpulse response analysis (CIR)
GSM900/1800/1900(optionpcsd-k2)
Synchronization CO carrier, BCCH,extendedtraining sequence
Measurement rate approx.46ms
Max.delay time 80μs
Max.dymanic range 18 dB,automatic noise suppression
Resolution 1μs
Bandwidth 120kHz,300 kHz
DAB (option PCSD-K3)
Synchronization run-in symbol
Measurement rate,mode1/2/3 96/24/24ms
Max.delay time,mode1/2/3 500/130/65μs
Max.dynamic range 35 dB,automatic noise suppression
Resolution 1μs
Bandwidth 1.5MHz
General measurements withspecial sequences (option PCSD-K4)
Synchronization specialsequence
Measurement rate approx.100ms
Max. delay time 460 to 60μs,depending on bandwidth
Max.dynamic range 35 dB,automatic noise suppression
Resolution 0.1 to 3μs,depending on bandwidth
Bandwidths 8/1.08 MHz/541/362/271 kHz;other bandwidths on request
Interference analysis (option PCSD-K1)
BCCHmeasurements
Min.power of BCCH for dixplay -140dBm
Number of measurable
BCCHs per channel 5
Probabilityof determining a BCCH with power C in a composite singnal with power 1as a functionof the number of dummy bursts (DB)per TDMA frame.(The composite signal may consistof moise,adjacent and co-channels of a TCH or BCCH,reflections and CW inter ferers):
Number of DBs C/1(dB)
per TDMA frame -40 to -30 -30 to -20 -20to -10 -10to 0 >0
4 to 8
3 to 4
2
1 65%
50%
30%
20% 80%
76%
73%
70% 98%
97%
96%
95% 99.9%
99.7%
99.2%
99.0% *
*
*
*
BCC determination definitive determinationof a BCC(base-station colour code)in 97% of all measurements (otherwise probabil-itydistribution)
Noise power measurement >-30 dB(Pnoise/Psignal)
Spectrum (display of spectum) ±200 kHz
Reflection measurement max.25 dB(C/lreflection)
Measurement rate 5 to 10 s per channel,depending on unmber of BCCHs
有意者請：
深圳市微普測電子有限公司 陳丙州-