R&S®ESPI Test Receiver
The reference instrument for the EMI precompliance class
Characteristics
The use of innovative techniques such as the VLSI frontend and largely digital signal processing, together with ASICs developed by Rohde & Schwarz, has yielded a product with excellent specifications and high reliability.
| Frequency range | R&S ESPI3: 9 kHz to 3 GHz R&S ESPI7: 9 kHz to 7 GHz |
| Preselection | 11 preselection filters from 9 kHz to 3 GHz can be switched off in analyzer mode |
| Resolution bandwidths (receiver and analyzer mode) | |
| 3 dB bandwidths: | 10 Hz to 10 MHz, in steps of 1/3/10 |
| 6 dB bandwidths: | 200 Hz, 9 kHz, 120 kHz acc. to CISPR 16 tolerance |
| Pulse bandwidth: | 1 MHz |
| FFT filters: | 1 Hz to 30 kHz, in steps of 1/3/10 |
| Channel/RRC: | 44 filters between 100 Hz and 5 MHz |
| Additional channel filters: (option R&S ESPI-K50 required) |
5.6 MHz, 6.0 MHz, 6.4 MHz, 7.0 MHz, 8.0 MHz |
| Displayed average noise level (DANL) | |
| Spectrum analyzer mode 0 dB RF attenuation, RBW = 10 Hz, VBW = 1 Hz, 20 averages, trace average, zero span, 50 Ω termination; presel./preamp. switched on: | |
| 9 kHz | <–105 dBm |
| 100 kHz | <–110 dBm |
| 1 MHz | <–130 dBm, typ. –137 dBm |
| 10 MHz to 1 GHz | <–152 dBm, typ. –155 dBm (R&S ESPI3) <–150 dBm, typ. –153 dBm (R&S ESPI7) |
| 1 GHz to 3 GHz | <–150 dBm, typ. –153 dBm (R&S ESPI3) <–148 dBm, typ. –151 dBm (R&S ESPI7) |
| presel./preamp. switched off: | |
| 3 GHz to 7 GHz | <–138 dBm, typ. –143 dBm (R&S ESPI7) |
| Intermodulation | |
| 1 dB compression point of input mixer f > 200 MHz; 0 dB RF attn.; preamp. + presel. off | 0 dBm nominal |
| Total level uncertainty 0 Hz to 3 GHz | |
| Analyzer mode without preselection | 0.5 dB (typ.) |
| Receiver/analyzer mode with preselection | <1.5 dB |
| Measurement speed | |
| Sweep (analyzer mode) | 1 μs to 16.000 s (zero span); resolution 125 ns 2.5 ms to 16.000 s (span ≥ 10 Hz) |
| Scan (receiver mode) | 100 μs to 100 s selectable |
| Max. input level | |
| RF attn. ≥ 10 dB; CW RF power | 30 dBm |
| Max. pulse voltage (10 μs) | |
| RF attn. ≥ 10 dB | 150 V |
Typical values for SSB phase noise (referenced to 1 Hz bandwidth)
Displayed average noise level in receiver mode with preselector/ preamplifier switched on
