The Anritsu ME520B is a Digital Transmission Analyzer designed for precise testing and analysis of digital transmission systems. This instrument is capable of measuring error rates and jitter on PCM signals across a clock frequency range of 1 kHz to 150 MHz, supporting 1st to 4th order PCM hierarchies and 10 CH systems. It offers simultaneous measurement of error rate and jitter, with results displayed digitally and analyzed in real-time. The unit can print analysis results along with date and time, enabling continuous long-term measurements. The ME520B is particularly well-suited for the development and maintenance of radio PCM, wired PCM, optical fiber systems, and other digital communication systems. Its design includes separate transmitter and receiver units to facilitate end-to-end measurements. The transmitter functions as a digital signal generator, producing M-sequence pseudorandom pattern signals and jitter-modulated signals that emulate actual transmitted signals. The receiver analyzes incoming signals to detect errors and measure jitter. The Anritsu ME520B can perform error analysis compliant with CCITT I Rec 0.821, making it valuable for evaluating international communication circuits.
### Technical Specifications
**General:**
* **Product Type:** Digital Transmission Analyzer
* **Simultaneous Measurement Capability:** Error Rate and Jitter
* **Supported Systems:** Radio PCM, Wired PCM, Optical Fiber Systems, Digital Communication Systems
* **Compliance:** CCITT I Rec 0.821 (for error analysis)
**Transmitter Unit:**
* **Signal Generation:** M-sequence pseudorandom pattern signals, Jitter modulated signals
* **Clock Signal Unit:**
* Generates timing signal
* Supported Bit Rates: 704, 2048, 8448, 34368, 68736, 139264 kbit/s
* External Clock Signal Access: Supported
* **Pattern/PRBS Generator:**
* PRBS Patterns: 2e10-1, 2e15-1, 2e23-1
* Pattern Generator: 1×16 bit, 2×8 bit
* Null Sequence Insertion: Supported (8 to 120 bit)
* Bit Error Insertion: Supported
* **Output Unit:**
* Inserts measuring signal into the examined object
* Line Codes: CMI, RZ, NRZ, AMI, HDB3
* Output Levels: TTL, ECL, Variable
* Output Impedance: 75 ohm
* **Jitter Modulator:**
* Modulates timing signal phase with external signal generator
* Maximum Modulation Depth: 10 UI-pp
* Sensitivity: 10 UI-pp/V
**Receiver Unit:**
* **Input Unit:** Inserts the signal of the examined object into the instrument.
* **Clock Signal Unit:** Obtains the timing signal from the received signal.
* **Pattern/PRBS Generator:** Generates the measuring signal for bit error rate measurement.
* **Measurement Time Basis:** Programmable measurement time.
* **Error Counter:** Counts and evaluates bit errors.
* Error Rate Thresholds: 1 x 10⁻³ to 1 x 10⁻⁷
* Error Count Thresholds: 1 to 999,999
* Display: % values with 4 decimal digits
* Averaging: Error rate averaged per 1 second or rate of time in which 1 minute error count exceeded threshold.
* **Jitter Measuring Tool:**
* Measurement Domain Range: 1 UI, 10 UI
* Measurement Rate: Slow, Medium, Fast
* Filters: HP1-LP, HP2-LP, LP, OFF
* HIT THRESHOLD SET: Yes
* Jitter Display: JITTER UI (Unit Interval), HIT COUNT, HIT INTVLS, HIT FREE INTVLS.
* Max Jitter Measurement: 0.00 to 10.10 UIp-p
* Accuracy: ±4% + additional error (refer to relevant tables/figures in manual)
**General Measurement Capabilities:**
* **PCM Signal Clock Frequencies:** 1 kHz to 150 MHz
* **Error Detection:** Detection of bit errors within a block (e.g., PRBS block length aligns with PRBS length).
* **Continuous Measurement:** Supported with internal printer for logging time/date stamped results.
**Frequency Range:**
* **Analyzer Frequency Range:** 50 Hz to 2.7 GHz
**Input/Output Characteristics:**
* **Input Impedance:** 50 ohms
* **Maximum Input Level:** +30 dBm (1 W)
* **Output Power:** -10 dBm to +10 dBm
* **Output Impedance:** 50 ohms
**Modulation Types (Supported by Analyzer):**
* AM, FM, PM, FSK, BPSK, QPSK, OQPSK, MSK, GMSK, π/4-DQPSK, QAM
**Physical Characteristics:**
* **Dimensions:** 320 x 180 x 130 mm
* **Weight:** 3.5 kg
* **Display:** LCD with backlight
**Power Requirements:**
* **Power Supply:** 100-240 VAC, 50/60 Hz
Why Choose Aumictech for Anritsu ME520B?
At Aumictech, we specialize in supplying high-end communication test equipment. Whether you need precise error rate and jitter measurements for digital transmission systems, comprehensive analysis of PCM signals, or reliable end-to-end network testing, our team ensures the Anritsu ME520B delivers maximum performance for your application.
