SPECTRUM ANALYZER
Deskripsi Spektrum Analyzer DS8821Q :
adalah alat untuk analisa bermacam-macam
gelombang Rf (Radio Frequensi) 1 MHz – 1 GHz dengan TFT LCD, yang
khusus untuk DVB-C instalasi jaringan dan pemeliharaan. Selain fitur
diwarisi dari DS8821B, DS8821Q ditambahkan alat profesional dan fitur
yang mencakup :
- CATV analisis, tetapi juga mencakup pengukuran TV channel serta kunci lainnya pengujian parameter auto, seperti CSO / CTB, C / N, MOD, TINGKAT, uji audio, Cross-Modulation, Diferensial Tahap / Gain, Chrominance-to-luminance Keterlambatan ketidaksetaraan dan lain-lain.
- Profesional sinyal digital analisis fungsi, mendukung Diagram Constellation jenis modulasi 16/32/64/128/256QAM/QPSK dan parameter penting lainnya dalam pengukuran sinyal digital, misalnya, MER, EVM, dan Pra / Pasca BER, sepenuhnya memenuhi dengan ITU-T J.83 Annex A / B / C standar.
- Penyimpanan data fungsi, Anda dapat melakukan analisis data historis dipilih, yang disimpan untuk meningkatkan kualitas operasi jaringan.
Frequency Range | 1MHz ~ 1000MHz |
Frequency Refrence Error | ± 1ppm (Internal Standard Frequency Reference) |
Frequency Refrence | |
Temperature Stability | ± 2ppm (0°C ~ +50°C) |
Minimum Display | |
Frequency Resolution | 10Hz |
Frequency Spam | 1KHz ~ 1GHz or 0Hz (Cw zero span) |
Resolution Bandwidth (-3dB) | 1KHz ~ 3GHz (1-3 Step) |
Phase Noise | ≤-88dBc/Hz@10KHz (typical) |
Display Average Noise Level | |
(Average Noise Ground) | Type A (50Ω) ; -117dBm |
Type B (75Ω) ; -10dBµV | |
(RBW=10KHz, VBW=100Hz, and with pre-amplifier open | |
Level Accuracy | ± 1dB (@20°C±5°C) |
Sweep Time | 20ms ~ 100s (Automaticaly or Manualy)/ 20µs (0 span) |
Digital Channel Power | 20dBµV ~ 120dBµV |
Demodulation Types | QPSK 16/32/64/128/256QAM |
Symbol Rate (SR) | 1ms/s ~ 7ms/s |
Modulation Error Ratio (MER) | 22dB ~ 40dB (64QAM, 256QAM) |
Bit Error Rate (BER) | 10E-9 ~ 10E-3 Before and After R-S Decoding |
Error Vector Magnitude | |
(EVM) Range | 0.55% ~ 4.1% |
Tracking Generator (DS80050)(option)
|
|
Frequency Range | 1MHz ~ 1000MHz |
Output Lavel Range | Type A (50Ω) ; 0dBm-60dBm |
Type B (75Ω) ; 102.8dBµV-42.8dBµV | |
Resolution | 1dB |
Absolute Accuracy | ± 1dB (102.8dBµV at 150MHz |
Display | 6.4″ TFT color LCD with 640×480 Pixels |
VGA Output Interface | Standard VGA output |
Serial RS-232 Interface | 9 Pin (D-SUB) |
Pararel Interface | 25 Pin (D-SUB) |
USB Port | USB 1.1 |
Keyboard Interface | 6 Pin |
Power Supply | DS80010D external AC adapter/ Rechargeable internal |
14.4V / 6Ah Li-ion battery | |
Charging Time | 5 hours |
Operating Time | 2.5 hours (fully charged) |
Dimensions | About 350x185x350mm |
Weight | Approx 10Kg (Battery Inside) |
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