特点
·PDC标准STD-27B/C测量
·高精度测量
·紧缩式、轻便型设计
·用于高生产量时的高速度测量 单一单元用于发射机和接收机测量
技术指标
| OCXO referemce oscillator | |||
| Temperatureeffect (O to 45℃) | ≤1×10^-7 | ||
| Aging (35℃) | ≤2×10^-7/year | ||
| DC voltmeter | 0 to ±30 V | ||
| DC ammeter | 0to ±10A | ||
| Operating modes | currentaveraging with PDC-adapted time constant,peak current measure-ment (positive andnegative) | ||
| Common-mode rejection | ±30V | ||
| Resistance | 50 mΩ | ||
| Receiver measurements | |||
| RFgenerator | |||
| Frequency ranges | 810 to 826 MHz | ||
| Channelspacing | 25 kHz | ||
| Resolution | 1Hz | ||
| Frdquency drift | sameas reference frequency | ||
| Outputlevel | RF IN/OUT RF OUT 2 | -119 to -27 dBm -70 to 0 dBm | |
| Resolutionof level setting | 0.1 dB | ||
| Level accuracy | RF IN/OUT | ±1.5 dB | |
| Carrier offset | ≤-25dBc | ||
| Vectcr error | 4°rms | ||
| Modulation | to RCR-STD27 | ||
| Signal purity | |||
| Adjacent-channelleakage power | |||
| (BW=21 kHz) | ≤-50 dB(50 kHz carrier offset) | ||
| Harmonics | ≤-20 dBc | ||
| BER measurements | |||
| Synchronizationrange | 0 to 10% | ||
| Meas.rangeafter synchronization | 0 to 25% | ||
| Resolution | 0.01% | ||
| Measured bit length | 2240to 44800 | ||
| Input transmission rate | ≤-50kbit/s | ||
| Transmitter measurements | |||
| Receive section | |||
| Frequencyranges | 915 to 956 MHz | ||
| Channel spacing | 25kHz | ||
| Frequency drift | sameas reference frequency | ||
| Input level | RF IN/OUT | 5 to 37 dBm | |
| Meawurement ofadjacent-channel power | |||
| Meassurement range(BW=21kHz) | ≥-53 dB(50 kHz carrier offset) | ||
| Inherent noise | RFIN/OUT | ≤-65 dBm | |
| VSWR | ≤1.3(into 50Ω) | ||
| Time-axis meawurement | |||
| Resolution | 1/2sybol(approx 12 μs) | ||
| Modulationmeawurements | |||
| Frequency offset measurement range | ±4kHz | ||
| Frequency measurement accuracy | 10 Hz + reference frequencydrift | ||
| Resolution | 1Hz | ||
| Mldulation accuracy meas.range | 0to 30% | ||
| Resolution | 0.1% | ||
| Accuracy | meas.value≤2%rms meas.value>2% rms | (1.0+reading×3%)%rms (2.0+reading×3%)% rms | |
| Inherent offset | |||
| (at-25 dBc carrier offset) | ±2dB | ||
| Measurement of transmission rate | |||
| Measurement range | ±5ppm | ||
| Resolution | 0.1ppm | ||
| Interfaces | |||
| Remote control | IEC625-2(IEEE488) | ||
| Printer | Centronics(25-contact) | ||
| Data input | BNC,≤50 kbit/s | ||
| External reference input | BNC,TTL(CMOS) | ||
| Impedance | 100 kΩ | ||
订货信息
·Digital Radiocommunicafion Tester for PDC R4860
