R4000 主机系统 |
ADC模块组指标 | Sampling rate | 320 MSPS, 16bits |
SFDR, 9 kHz to 140 MHz | 90 dB, typical (referenced to full scale of ADC) |
SFDR, 120 MHz to 18 GHz | 75 dB, typical (referenced to full scale of ADC) |
瞬时带宽 | 120 MHz |
中频独立子信道 | Number of channels | up to 127, independent |
Channel bandwidth | 100 Hz to 120 MHz |
Data buffering | up to 4 seconds, with respect to spectrum data |
频谱数据 | Number of channels | two independent spectrum channels |
Bandwidth | 120 MHz to 7.5MHz |
Frequency resolution | 39 kHz to 305Hz |
FFT width | 4096，32768 |
FFT window | Hamming, Hanning, Blackman-Harris, Polyphase m=3, |
user-configurable coefficients (up to 3x4096) |
Averaging | 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024 |
Detector | Max, Min, RMS |
物理接口 | RF input | N, female, 50 Ω (one common RF input or up to 4 individual |
| RF inputs for the frequency range) |
| IF input | N, female, 50 Ω |
| External reference input | 10 MHz, BNC, female, 50 Ω |
| Trigger pulse input | SMA, female, CMOS 3.3 Volt (5 Volt tolerant input) |
| Trigger pulse output | SMA, female, CMOS 3.3 Volt |
| Synchronisation input 1PPS | BNC, female, CMOS 3.3 Volt (5 Volt tolerant input) |
| External synchronization | up to 10x SMA, female, 50 Ω |
| Service interface | RS232, D-SUB 9, male |
| LAN | 2x1 Gigabit LAN, approx. 1.8 Gbps throughput |
| LAN (Option R4000-10G) | 10 Gigabit LAN |
| Additional Interfaces | GPIB, USB 2.0, VGA, RS232 |