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Signal Analysis Meter
WAVETEK / ACTERNA
SDA 4040D/ SDA4040D QAM
Frequency
| Range |
5 to 1,000 MHz |
| Accuracy |
± 10 ppm at 25°C; ± 10 ppm drift over temp. |
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± 3 ppm/year aging |
| Resolution Bandwidths |
30, 280 kHz and 2MHz |
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(30 kHz for CTB/CSO only) |
| Tuning Resolutions |
10 kHz |
| Sweep Resolution |
250 kHz maximum |
Level Measurement
| Range |
-40 to +60 dBmV |
| Resolution |
0.1 dB |
| Accuracy |
±1.0 dB from -20 to +50°C 1,2 |
| Log Linearity |
±0.5 dB 1 |
| Flatness |
±0.5 dB 3 |
| Signal Types |
CW, single carrier, video |
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(single or dual audio/NICAM), audio, digital |
| Uncertainty for Digital Carrier |
additional ±0.5 dB (digital types 16/32/64/256 QAM, |
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QPR, QPSK, VSB, CAP-16, DVB/ACTS and TDMA |
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using zero-span spectrum mode) @280 kHz RBW |
Hum Measurement
In-service measurement. Carrier > 0 dBmV. Non-scrambled channels only
| Range |
0 to 10% |
| Resolution |
<0.2% |
| Accuracy |
+/- 0.7% |
Key Features
- QAM View includes BER, MER, and constellation.
- Equalizer stress and microreflections.
- QAM ingress (noise-under-carrier).
- PathTrak Field View option.
SDA 4040D
ㆍ아날로그 신호 분석기능 내포
(신호레벨,틸트, 전채널자동스캔, 자동측정, C/N, CSO, CTB, HUM,MOD, 스펙트럼분석,
케이블모뎀C/N등)
ㆍ스펙트럼 분석기능 내장으로 상향 노이즈 관리
ㆍ디지털 신호(64QAM, 256QAM,QPSK) 레벨 또는 채널파워 측정
ㆍTDMA(상향 QPSK, 16QAM) S/N 측정
ㆍ데이터 관리용 소프트웨어(StealthWare) 와 연동
SDA 4040D QAM
ㆍSDA4040D 의 모든 기능 내포
ㆍ디지털 신호(64/256QAM) 측정 및 분석기능
- BER(Bit Error Rate), MER(Modulation Error Rate), EVM(Error Vector Magnitude) 측정
- 어댑티브 이퀄라이져 기능
- 줌(Zoom) 기능
- 서비스중인 디지털신호대역 잡음측정(Ingress 측정모드)
- 반사파에 의해 문제 지점 거리 측정(이퀄라이저 측정모드)
- 서비스중인 디지털영역 (Vector Constellation)품질측정
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