The 4071 series supports RF development, communications signal analysis and production testing. Seven frequency configurations offer DC-coupled measurements from 2 Hz to a model-dependent maximum of 50 GHz. Analysis bandwidth is 10 MHz as standard, with 40 MHz or 200 MHz options. Real-time spectrum, digital modulation, 5G NR and WLAN analysis require the corresponding options.
Models and frequency ranges
| Model | DC coupled | AC coupled | RF input |
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| 4071A | 2 Hz–4 GHz | 10 MHz–4 GHz | N (F) |
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| 4071B | 2 Hz–8 GHz | 10 MHz–8 GHz | N (F) |
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| 4071C | 2 Hz–13.6 GHz | 10 MHz–13.6 GHz | N (F) |
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| 4071D | 2 Hz–18 GHz | 10 MHz–18 GHz | N (F) |
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| 4071E | 2 Hz–26.5 GHz | 10 MHz–26.5 GHz | 3.5 mm (M) |
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| 4071G | 2 Hz–45 GHz | 10 MHz–45 GHz | 2.4 mm (M) |
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| 4071H | 2 Hz–50 GHz | 10 MHz–50 GHz | 2.4 mm (M) |
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Core specifications
| Parameter | Specification |
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| Standard analysis bandwidth | 10 MHz |
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| Optional analysis bandwidth | 40 MHz / 200 MHz |
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| Resolution bandwidth (RBW) | 0.1 Hz–10 MHz (10% steps); 20 MHz |
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| Video bandwidth (50 MHz is nominal wide-open value) | 0.1 Hz–10 MHz (10% steps); 20 MHz; 50 MHz |
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| Mechanical attenuation and step | 0–72 dB; 2 dB |
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| Optional preamplifier range and nominal gain | 100 kHz–fmax; 30 dB |
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| Span (fmax is selected-model upper frequency) | 0 Hz; 10 Hz–fmax |
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| Sweep points | 101–120001 |
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| Sweep time, span ≥10 Hz | 1 ms–16000 s |
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| Sweep time, zero span | 1 μs–16000 s |
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| Touchscreen size, inches | 11.6 |
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| USB Type-A ports (front + rear) | 6 (3 + 3) |
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| LAN | 10/100/1000 Mbps; RJ45 |
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| Video and headphone ports | DP; 3.5 mm |
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| Frequency-reference input/output | 10 MHz; BNC (F); 50 Ω |
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| External trigger inputs/outputs | 2 + 2; BNC (F) |
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| Remote control | SCPI |
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| Overall W×H×D | (475±4) × (193±2.5) × (533±4) mm |
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| Nominal W×H×D, excluding protrusions | (426±4) × (177±2.5) × (450±4) mm |
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| Standard-configuration weight | <23 kg |
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| AC power supply | 100–240 V AC; 50–60 Hz |
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| Standard-configuration power consumption | <300 W |
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| Operating temperature | 0 to +50 °C |
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| Storage temperature | −40 to +70 °C |
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Frequency reference
Reference accuracy is ±(elapsed time since calibration × aging + temperature stability + calibration accuracy). The catalog uses one year since calibration by default.
| Parameter | Standard reference | H13 option |
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| Aging | ±1×10⁻⁷/year | ±5×10⁻⁸/year |
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| Temperature stability | ±5×10⁻⁷ | ±5×10⁻⁸ |
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| Calibration accuracy | ±4×10⁻⁸ | ±4×10⁻⁸ |
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Phase noise
1 GHz carrier, 20–30 °C; requires the 4071-H16 phase-noise enhancement option.
| Offset | Specification | Typical |
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| 100 Hz | ≤-93 dBc/Hz | -97 dBc/Hz |
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| 1 kHz | ≤-110 dBc/Hz | -114 dBc/Hz |
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| 10 kHz | ≤-116 dBc/Hz | -120 dBc/Hz |
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| 100 kHz | ≤-120 dBc/Hz | -123 dBc/Hz |
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| 1 MHz | ≤-135 dBc/Hz | -137 dBc/Hz |
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Displayed average noise level
Matched input load, trace video averaging, video-average detector, 0 dB input attenuation, normalized to 1 Hz RBW, 20–30 °C. Each band is limited to the selected model range. Preamp-on values require the matching H34A or H34 option.
| Model group | Preamp | Frequency band | Specification, dBm | Typical, dBm |
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| 4071A/B | Off | 10 MHz ≤ f ≤ 1 GHz | ≤-150 | -153 |
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| 4071A/B | Off | 1 GHz < f ≤ 2 GHz | ≤-148 | -152 |
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| 4071A/B | Off | 2 GHz < f ≤ 3 GHz | ≤-146 | -151 |
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| 4071A/B | Off | 3 GHz < f ≤ 4 GHz | ≤-143 | -147 |
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| 4071A/B | Off | 4 GHz < f ≤ 6 GHz | ≤-145 | -149 |
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| 4071A/B | Off | 6 GHz < f ≤ 8 GHz | ≤-143 | -147 |
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| 4071A/B | On, matching preamp option | 10 MHz ≤ f ≤ 50 MHz | ≤-165 | -169 |
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| 4071A/B | On, matching preamp option | 50 MHz < f ≤ 4 GHz | ≤-161 | -166 |
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| 4071A/B | On, matching preamp option | 4 GHz < f ≤ 6 GHz | ≤-160 | -163 |
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| 4071A/B | On, matching preamp option | 6 GHz < f ≤ 8 GHz | ≤-155 | -159 |
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| 4071C/D/E/G/H | Off | 10 MHz ≤ f ≤ 1 GHz | ≤-148 | -152 |
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| 4071C/D/E/G/H | Off | 1 GHz < f ≤ 2 GHz | ≤-147 | -150 |
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| 4071C/D/E/G/H | Off | 2 GHz < f ≤ 3 GHz | ≤-144 | -147 |
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| 4071C/D/E/G/H | Off | 3 GHz < f ≤ 4 GHz | ≤-141 | -144 |
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| 4071C/D/E/G/H | Off | 4 GHz < f ≤ 6 GHz | ≤-143 | -146 |
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| 4071C/D/E/G/H | Off | 6 GHz < f ≤ 8 GHz | ≤-139 | -143 |
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| 4071C/D/E/G/H | Off | 8 GHz < f ≤ 13.6 GHz | ≤-144 | -149 |
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| 4071C/D/E/G/H | Off | 13.6 GHz < f ≤ 18 GHz | ≤-144 | -147 |
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| 4071C/D/E/G/H | Off | 18 GHz < f ≤ 26.5 GHz | ≤-141 | -145 |
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| 4071C/D/E/G/H | Off | 26.5 GHz < f ≤ 40 GHz | ≤-137 | -142 |
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| 4071C/D/E/G/H | Off | 40 GHz < f ≤ 45 GHz | ≤-133 | -138 |
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| 4071C/D/E/G/H | Off | 45 GHz < f ≤ 50 GHz | ≤-129 | -133 |
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| 4071C/D/E/G/H | On, matching preamp option | 10 MHz ≤ f ≤ 50 MHz | ≤-158 | -161 |
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| 4071C/D/E/G/H | On, matching preamp option | 50 MHz < f ≤ 4 GHz | ≤-161 | -165 |
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| 4071C/D/E/G/H | On, matching preamp option | 4 GHz < f ≤ 6 GHz | ≤-160 | -164 |
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| 4071C/D/E/G/H | On, matching preamp option | 6 GHz < f ≤ 8 GHz | ≤-160 | -163 |
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| 4071C/D/E/G/H | On, matching preamp option | 8 GHz < f ≤ 18 GHz | ≤-157 | -161 |
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| 4071C/D/E/G/H | On, matching preamp option | 18 GHz < f ≤ 26.5 GHz | ≤-155 | -159 |
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| 4071C/D/E/G/H | On, matching preamp option | 26.5 GHz < f ≤ 40 GHz | ≤-152 | -157 |
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| 4071C/D/E/G/H | On, matching preamp option | 40 GHz < f ≤ 50 GHz | ≤-150 | -154 |
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Frequency response
10 dB input attenuation, 20–30 °C. Absolute amplitude accuracy: ±0.30 dB at the 500 MHz calibration frequency; ±(0.30 dB + frequency response) elsewhere, with 1 Hz–1 MHz RBW and −50 to −10 dBm input.
| Preamp | Frequency band | Specification | Typical |
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| Off | 9 kHz ≤ f ≤ 10 MHz | ±0.70 dB | ±0.40 dB |
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| Off | 10 MHz ≤ f ≤ 4 GHz | ±0.50 dB | ±0.30 dB |
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| Off | 4 GHz < f ≤ 8 GHz | ±0.80 dB | ±0.50 dB |
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| Off | 8 GHz < f ≤ 18 GHz | ±1.70 dB | ±1.00 dB |
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| Off | 18 GHz < f ≤ 26.5 GHz | ±2.20 dB | ±1.40 dB |
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| Off | 26.5 GHz < f ≤ 40 GHz | ±3.00 dB | ±1.80 dB |
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| Off | 40 GHz < f ≤ 50 GHz | ±3.50 dB | ±2.40 dB |
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| On, matching preamp option | 10 MHz ≤ f ≤ 4 GHz | ±1.00 dB | ±0.60 dB |
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| On, matching preamp option | 4 GHz < f ≤ 8 GHz | ±1.50 dB | ±0.90 dB |
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| On, matching preamp option | 8 GHz < f ≤ 18 GHz | ±2.50 dB | ±1.20 dB |
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| On, matching preamp option | 18 GHz < f ≤ 26.5 GHz | ±3.00 dB | ±2.00 dB |
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| On, matching preamp option | 26.5 GHz < f ≤ 40 GHz | ±3.50 dB | ±2.20 dB |
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| On, matching preamp option | 40 GHz < f ≤ 50 GHz | ±4.00 dB | ±2.40 dB |
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Dynamic range
1 dB compression: two tones, 5 kHz RBW, 3 MHz separation. TOI: two −10 dBm signals at the mixer input, 50 kHz separation. Both apply at 20–30 °C within the selected model range.
| Parameter | Frequency band | Specification | Typical |
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| 1 dB gain compression | 10 MHz ≤ f < 100 MHz | ≥0 dBm | +3 dBm |
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| 1 dB gain compression | 100 MHz ≤ f < 1 GHz | ≥0 dBm | +3 dBm |
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| 1 dB gain compression | 1 GHz ≤ f < 8 GHz | ≥+3 dBm | +6 dBm |
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| 1 dB gain compression | 8 GHz ≤ f ≤ 50 GHz | ≥+3 dBm | +6 dBm |
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| TOI | 10 MHz ≤ f ≤ 200 MHz | ≥+12 dBm | +17 dBm |
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| TOI | 200 MHz < f ≤ 4 GHz | ≥+15 dBm | +19 dBm |
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| TOI | 4 GHz < f ≤ 8 GHz | ≥+15 dBm | +20 dBm |
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| TOI | 8 GHz < f ≤ 50 GHz | ≥+15 dBm | +18 dBm |
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IQ recording
Select sample count and I/Q word length together with bandwidth and hardware options. Standard 10 MHz and H38-40 configurations do not analyze bandwidths above 40 MHz.
| Configuration | Analysis bandwidth | Memory | IQ samples | I/Q word length |
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| Standard or H38-40 | ≤40 MHz | 2 GB | 250M | 32I + 32Q |
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| H38-200 | ≤40 MHz | 4 GB | 500M | 32I + 32Q |
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| H38-200 | >40 MHz; ≤200 MHz | 4 GB | 1000M | 16I + 16Q |
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Hardware options
| Option code | Function | Configuration conditions |
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| 4071-H01 | Rear-panel RF input | — |
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| 4071-H02 | Second IF output | 425 MHz |
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| 4071-H13 | Precision frequency reference | — |
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| 4071-H16 | Phase-noise enhancement | Optional; required for phase-noise table above |
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| 4071-H18 | Remote-interface expansion | GPIB / USB-TARGET |
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| 4071-H33-08 | Electronic attenuator | ≤8 GHz; 30 dB; 0.5 dB |
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| 4071-H34A-04 | Low-noise preamplifier | 4071A |
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| 4071-H34A-08 | Low-noise preamplifier | 4071B |
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| 4071-H34-13 | Low-noise preamplifier | 4071C |
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| 4071-H34-18 | Low-noise preamplifier | 4071D |
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| 4071-H34-26 | Low-noise preamplifier | 4071E |
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| 4071-H34-45 | Low-noise preamplifier | 4071G |
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| 4071-H34-50 | Low-noise preamplifier | 4071H |
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| 4071-H36 | Preselector bypass | C/D/E/G/H |
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| 4071-H38-40 | 40 MHz analysis bandwidth | C/D/E/G/H require H36 with H38-series bandwidth options for best wideband reception; A/B excluded |
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| 4071-H38-200 | 200 MHz analysis bandwidth | C/D/E/G/H require H36 with H38-series bandwidth options for best wideband reception; A/B excluded |
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| 4071-H41-10 | 10 MHz real-time spectrum | Optional, not included by default |
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| 4071-H41-40 | 40 MHz real-time spectrum | H38-40 / H38-200 |
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| 4071-H41-200 | 200 MHz real-time spectrum | H38-200 |
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| 4071-H48 | Noise-figure measurement | Requires matching-band H34 preamp and appropriate 1660X noise-source probe |
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| 4071-H96 | Printed detailed user manual | Optional, not included by default |
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| 4071-H97 | Rack-mount kit | Optional, not included by default |
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| 4071-H98 | English panel, manual, UI and OS | Optional, not included by default |
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| 4071-H99-1 | Aluminum transport case | Optional, not included by default |
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| 4071-H99-2 | Plastic wheeled transport case | Optional, not included by default |
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Analysis software options
| Option code | Function | Configuration conditions |
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| 4071-S01 | External USB-sensor power measurement | Requires appropriate 8723X power sensor |
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| 4071-S02 | Noise power ratio | Optional, not included by default |
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| 4071-S04 | Phase-noise measurement | Optional, not included by default |
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| 4071-S05 | EMI precompliance | Optional, not included by default |
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| 4071-S09 | Analog demodulation | AM / FM / ΦM |
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| 4071-S10 | Transient analysis | Optional, not included by default |
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| 4071-S10H | Frequency-hop analysis | S10 |
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| 4071-S10F | FMCW analysis | S10 |
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| 4071-S12B | Bit-error-ratio testing | S12 |
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| 4071-S12M | DVB-S2/X modulation analysis | S12 |
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| 4071-S13 | Pulse analysis | Optional, not included by default |
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| 4071-S14 | Custom OFDM analysis | Optional, not included by default |
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| 4071-S16 | Multicarrier group delay | Optional, not included by default |
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| 4071-S40 | WLAN analysis | 802.11a/b/g |
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| 4071-S40N | 802.11n analysis | S40 |
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| 4071-S40AC | 802.11ac analysis | S40 |
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| 4071-S40AX | 802.11ax analysis | S40 |
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| 4071-S40BE | 802.11be analysis | S40 |
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| 4071-S41D | LTE/LTE-A TDD downlink | Optional, not included by default |
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| 4071-S41U | LTE/LTE-A TDD uplink | Optional, not included by default |
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| 4071-S42D | LTE/LTE-A FDD downlink | Optional, not included by default |
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| 4071-S42U | LTE/LTE-A FDD uplink | Optional, not included by default |
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| 4071-S43D | NB-IoT downlink | Optional, not included by default |
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| 4071-S43U | NB-IoT uplink | Optional, not included by default |
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| 4071-S45 | 5G NR V2X sidelink | Optional, not included by default |
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| 4071-S46D | 5G NR downlink | Optional, not included by default |
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| 4071-S46U | 5G NR uplink | Optional, not included by default |
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| 4071-S47D | 5G NR downlink combined measurement | S46D |
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| 4071-S48 | Bluetooth BR/EDR/LE analysis | Optional, not included by default |
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| 4071-S49D | WCDMA downlink | Optional, not included by default |
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| 4071-S49U | WCDMA uplink | Optional, not included by default |
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| 4071-S50 | GSM/EDGE/EDGE evolution | Optional, not included by default |
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Calibration and warranty services
| Option code | Function | Configuration conditions |
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| 4071A-JL | Optional calibration and report | 4071A |
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| 4071A-EWT1 | Optional one-year post-warranty extension | 4071A |
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| 4071B-JL | Optional calibration and report | 4071B |
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| 4071B-EWT1 | Optional one-year post-warranty extension | 4071B |
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| 4071C-JL | Optional calibration and report | 4071C |
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| 4071C-EWT1 | Optional one-year post-warranty extension | 4071C |
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| 4071D-JL | Optional calibration and report | 4071D |
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| 4071D-EWT1 | Optional one-year post-warranty extension | 4071D |
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| 4071E-JL | Optional calibration and report | 4071E |
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| 4071E-EWT1 | Optional one-year post-warranty extension | 4071E |
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| 4071G-JL | Optional calibration and report | 4071G |
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| 4071G-EWT1 | Optional one-year post-warranty extension | 4071G |
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| 4071H-JL | Optional calibration and report | 4071H |
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| 4071H-EWT1 | Optional one-year post-warranty extension | 4071H |
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Applications and supply
- M means male and F means female. All RF inputs are 50 Ω. The photo shows a 4071E, not the connectors or range of every model.
- Typical and nominal values are not guaranteed specifications. Software, real-time spectrum, extended bandwidth, preamps and services are selected and quoted separately.
- Vector-signal demodulation and multiple analysis views are available with the required software configuration. EMI precompliance is not certification.
- S12B/S12M require vector-signal analysis option S12; WLAN extensions require S40; S47D requires S46D. Signal bandwidth must also fit the installed hardware bandwidth.
- Catalog standard supplied items are a power cord, quick-start manual and product conformity certificate. Cases, rack kit, detailed printed manual, English package and warranty extensions are optional.
- Warranty extensions exclude calibration; confirm service coverage and shipping terms in the quotation. Provide frequency range, bandwidth, signal standards, connectors, software, calibration/report and quantity requirements.
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