YC-TI-CT-0002 | 4959 Series Microwave Analyzer
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Product overview
The 4959 series combines spectrum analysis and vector network analysis in a handheld microwave analyzer, with models having upper frequencies from 9 GHz to 54 GHz. It supports RF component, cable/antenna and field signal measurements, with optional cable/antenna analysis, real-time spectrum analysis, direction finding, USB power measurement and OTDR functions.
Models and frequency ranges
| Model | Spectrum analysis | Vector network analysis | RF connector | Weight (excluding battery) |
|---|---|---|---|---|
| 4959B | 9 kHz-9 GHz | 300 kHz-9 GHz | N female | ≤3.7 kg |
| 4959D | 9 kHz-18 GHz | 300 kHz-18 GHz | N female | ≤3.7 kg |
| 4959E | 9 kHz-26.5 GHz | 300 kHz-26.5 GHz | 3.5 mm male | ≤3.9 kg |
| 4959G | 9 kHz-44 GHz | 300 kHz-44 GHz | 2.4 mm male | ≤3.9 kg |
| 4959H | 9 kHz-50 GHz | 300 kHz-50 GHz | 2.4 mm male | ≤3.9 kg |
| 4959K | 9 kHz-54 GHz | 300 kHz-54 GHz | 1.85 mm male | ≤3.9 kg |
General specifications
| Item | Specification |
|---|---|
| Display | 10.1-inch capacitive touchscreen; 8 independent markers, 4 independent windows and 8 displayed traces |
| Dimensions (W × H × D) | (316.7±2.5) × (236.5±2.5) × (75.0±1.5) mm; excluding side strap, front-panel connectors and connector caps |
| Operating temperature | -20 to +55 °C |
| Storage temperature | -50 to +70 °C |
| Battery runtime | Typically 3 hours; varies with model and measurement mode |
| Display modes | Default, outdoor and night vision |
| Reference and communication interfaces | 10 MHz reference input/output, GPS/BeiDou antenna interface, zero-span IF output, WiFi, LAN, USB and MicroSD; GPS/BeiDou, WiFi and IF output depend on selected options |
| Standard measurement modes | Spectrum analysis and vector network analysis |
| Frequency reference | Nominal 10 MHz; aging ±0.5 ppm/year; initial calibration accuracy ±0.3 ppm; temperature stability ±0.1 ppm (-20 to +55 °C, relative to 25±10 °C) |
| Frequency reference accuracy calculation | ±(years since last calibration × aging rate + temperature stability + calibration accuracy) |
Spectrum analysis specifications
| Item | Specification |
|---|---|
| Span | 0 Hz (zero span); 10 Hz to the selected model's upper frequency limit; accuracy ±1.0% |
| Resolution bandwidth | 1 Hz-20 MHz in 1-2-3-5-8 steps |
| Video bandwidth | 1 Hz-20 MHz in 1-2-3-5-8 steps |
| Sideband noise (1 GHz carrier) | ≤-108 dBc/Hz @10 kHz; ≤-110 dBc/Hz @100 kHz; ≤-118 dBc/Hz @1 MHz; ≤-129 dBc/Hz @10 MHz offset |
| Displayed average noise level (preamp on) | -120 to -159 dBm/Hz |
| Displayed average noise level (preamp off) | -110 to -138 dBm/Hz |
| Second harmonic distortion | ≤-70 dBc (50 MHz-27 GHz) |
| Third-order intercept (TOI) | ≥+10 dBm (50 MHz-54 GHz) |
| Image, multiple and out-of-band responses | <-60 to -65 dBc |
| Residual responses | 4959B: ≤-100 dBm (10 MHz-9 GHz); 4959D: ≤-95 to -100 dBm (10 MHz-18 GHz); 4959E/G/H/K: ≤-90 to -100 dBm (10 MHz-54 GHz, limited to each model's upper frequency) |
| Reference level | Log scale -150 to +30 dBm, minimum 1 dB step; conversion error ±0.70 dB (reference level -60 to 0 dBm) |
| Input attenuator | 0-30 dB in 2 dB steps |
| Display scale | 0.1-10 dB/div, minimum 0.1 dB step, 10 divisions; V, A, W, dBm, dBW, dBV, dBmV, dBμV, dBA, dBmA, dBμA |
| Detectors | Normal, positive peak, negative peak, sample, average and RMS |
| Spectrum measurement functions | Channel power, occupied bandwidth, adjacent-channel power, multicarrier adjacent-channel power, spectrum emission mask, carrier-to-noise ratio, audio demodulation, harmonic distortion, third-order intermodulation, noise marker, frequency counter, peak list, signal and peak tracking; spectrum mode displays 3 traces simultaneously |
Spectrum analysis: model-specific parameters
| Model | Total level uncertainty | Maximum safe CW input (frequency ≥50 MHz) |
|---|---|---|
| 4959B | ±1.30 dB | +27 dBm |
| 4959D | ±1.30 dB | +27 dBm |
| 4959E | ±1.30-±1.80 dB | +25 dBm |
| 4959G | ±1.30-±1.80 dB | +25 dBm |
| 4959H | ±1.30-±2.50 dB | +25 dBm |
| 4959K | ±1.30-±2.80 dB | +25 dBm |
Vector network analysis: common parameters
| Item | Specification |
|---|---|
| Frequency accuracy | ±0.9 ppm |
| Frequency resolution | 1 Hz |
| IF bandwidth | 3 Hz, 10 Hz, 30 Hz, 100 Hz, 300 Hz, 1 kHz, 3 kHz, 10 kHz, 30 kHz, 100 kHz |
| Low-power output | -35 dBm |
| S-parameter measurements | Four S-parameters, magnitude and phase; log, linear, phase, group delay, Smith chart, polar and VSWR displays; mixed-mode S-parameters and time-domain analysis depend on selected options |
| Calibration methods | Full two-port, unknown-thru, waveguide and user-defined calibration kits; electronic calibration requires the software option and an external electronic calibration module |
Vector network analysis: model-specific parameters
| Model | High-power output | Port output power accuracy | Effective directivity | System dynamic range |
|---|---|---|---|---|
| 4959B | -8 to +3 dBm | ±2.0 dB | 34-42 dB | 90-103 dB |
| 4959D | -8 to +3 dBm | ±2.0 dB | 34-42 dB | 90-103 dB |
| 4959E | -8 to +3 dBm | ±2.0 dB | 26-42 dB | 90-103 dB |
| 4959G | -8 to +3 dBm | ±2.0-±2.5 dB | 26-42 dB | 90-103 dB |
| 4959H | -8 to +3 dBm | ±2.0-±2.5 dB | 26-42 dB | 81-103 dB |
| 4959K | -12 to +3 dBm | ±2.0-±3.0 dB | 26-42 dB | 80-103 dB |
Vector network analysis: tracking and trace noise
| Model | Reflection tracking | Transmission tracking | Amplitude trace noise | Phase trace noise |
|---|---|---|---|---|
| 4959B | ±0.06 dB | ±0.08-±0.16 dB | 0.0015-0.0040 dB rms | 0.0200-0.0500 deg rms |
| 4959D | ±0.06 dB | ±0.08-±0.16 dB | 0.0015-0.0040 dB rms | 0.0200-0.0500 deg rms |
| 4959E | ±0.06-±0.08 dB | ±0.08-±0.16 dB | 0.0015-0.0040 dB rms | 0.0200-0.0500 deg rms |
| 4959G | ±0.06-±0.08 dB | ±0.08-±0.24 dB | 0.0015-0.0050 dB rms | 0.0200-0.1200 deg rms |
| 4959H | ±0.06-±0.08 dB | ±0.08-±0.24 dB | 0.0015-0.0050 dB rms | 0.0200-0.1200 deg rms |
| 4959K | ±0.06-±0.12 dB | ±0.08-±0.28 dB | 0.0015-0.0100 dB rms | 0.0200-0.5000 deg rms |
Typical performance reference
The following are typical values under the stated conditions, not substitutes for the specification tables. Applicable frequencies are limited to the selected model's range.
| Item | Typical value and conditions |
|---|---|
| System dynamic range (typical) | 113 dB (10 MHz < f ≤20 GHz) |
| Single-sideband phase noise (typical) | ≤-113 dBc/Hz (100 kHz offset, 1 GHz carrier) |
| Displayed average noise level (typical) | ≤-163 dBm/Hz (2 MHz-6 GHz, preamp on) |
Optional measurement functions
| Function | Description and configuration requirements |
|---|---|
| Cable and antenna analysis | Return loss, VSWR, impedance, 1-port cable loss and DTF fault location; TDR requires 4959-S32 and 4959-S30 |
| Vector voltmeter | Magnitude, phase, electrical length, A/B and B/A; receiver-channel amplitude/phase consistency |
| USB power / peak power | Requires corresponding external USB power sensors; sensor coverage up to 67 GHz does not extend the host spectrum/VNA range to 67 GHz |
| Channel scanner | Up to 20 channels; channel, frequency and list scans |
| Field strength | Requires an antenna; fixed-frequency, frequency-sweep and list-sweep modes; import or define antenna factors |
| Indoor maps | Manually mark positions; supplied software converts floor-plan images into tiled maps |
| Outdoor maps | Plot RSSI and adjacent-channel power ratio by time or distance; requires 4959-H01 |
| Direction finding | Requires positioning, directional antenna and electronic compass configuration; a compatible antenna with an integrated compass needs no duplicate compass |
| Real-time spectrum analysis | 40 MHz or 120 MHz options; digital persistence and waterfall displays for transient and burst capture |
| Time gate | Set gate delay and gate width in time-domain mode; over-the-air measurements require 4959-H01 |
| USB OTDR | Requires 4959-S34 + 4959-H67; G.652 single-mode 9/125 fiber; wavelengths 1310±20 nm and 1550±20 nm; typical dynamic range 38 dB |
| Optical power meter (with OTDR) | Calibration wavelengths 850/980/1270/1300/1310/1490/1550/1577/1625/1650 nm; typical range -50 to +20 dBm |
Function and software options
| Option / accessory model | Specification and description |
|---|---|
| 4959-01 | English version: English labels, menus and quick-start guide. |
| 4959-02 | Chinese user manual. |
| 4959-03 | English user manual. |
| 4959-04 | Chinese programming manual. |
| 4959-05 | English programming manual. |
| 4959-S01 | USB power measurement; requires external 87233C/D/E/F/L CW sensors or 87235B/C/D/DG/F/FA/H/L average-power sensors. |
| 4959-S02 | USB peak-power measurement; requires 87234D/E/F/L USB peak/average power meters and 87236D/E/F/L USB peak/average sensors. |
| 4959-S03 | Interference analysis: waterfall and RSSI measurements. |
| 4959-S04 | Channel scanner: power measurement across multiple channels. |
| 4959-S05 | Field-strength measurement for electric-field radiation from the device under test. |
| 4959-S06 | Outdoor maps: RSSI and adjacent-channel power ratio, plotted by time or distance; requires 4959-H01. |
| 4959-S07 | Indoor maps: RSSI and adjacent-channel power-ratio tests, with color-coded signal-strength markers. |
| 4959-S08 | Analog demodulation: AM, FM and PM analysis. |
| 4959-S09 | Zero-span IF output: analog IF signal output in zero-span mode. |
| 4959-S10 | Time gate for time-division interference tests; over-the-air tests require 4959-H01. |
| 4959-S11 | Direction finding for interference or unknown sources; requires 4959-H01, USB electronic compass and directional antenna options. |
| 4959-S12 | 40 MHz real-time spectrum analysis; provides 40 MHz real-time bandwidth. |
| 4959-S13 | List scan: continuous scans across multiple frequency bands. |
| 4959-S14 | IQ analysis: capture and display IQ data. |
| 4959-S15 | 2G GSM/EDGE demodulation analysis; requires the 120 MHz real-time spectrum option. |
| 4959-S16 | 4G LTE FDD/TDD demodulation analysis; requires the 120 MHz real-time spectrum option. |
| 4959-S17 | 5G NR measurement: demodulation analysis of 5G NR signals; requires the 120 MHz real-time spectrum option. |
| 4959-S18 | Vector signal analysis of single-carrier digital modulation; spectrum, vector, constellation, eye diagram and error/symbol-table displays. |
| 4959-S19 | EMI analysis: EMI, fixed-frequency and list scans; CISPR average, RMS and quasi-peak detectors. |
| 4959-S20 | Phase-noise measurement: single-sideband phase-noise curve and point measurements. |
| 4959-S23 | Noise-figure analysis; requires a 16615-series noise source. |
| 4959-S30 | Cable and antenna analysis: return loss, VSWR and fault tests on cables and feeders. |
| 4959-S31 | Vector voltmeter: cable phase shift and electrical length. |
| 4959-S32 | TDR for cable-fault location and type; requires 4959-S30 cable and antenna analysis. |
| 4959-S33 | Electronic-calibration software; requires a separate electronic calibration module for VNA, cable/antenna and vector-voltmeter calibration. |
| 4959-S34 | OTDR and optical power-meter functions; requires 4959-H67. |
| 4959-S35 | Mixed-mode S-parameters for differential S-parameter measurements. |
| 4959-S36 | VNA time-domain measurements. |
External devices and accessories
| Option / accessory model | Specification and description |
|---|---|
| 4959-H01 | GPS/BeiDou positioning using an external antenna. |
| 4959-H02 | WiFi wireless data communication with external devices. |
| 4959-H03 | Aluminum-alloy case with telescopic handle. |
| 4959-H04 | Transport case with telescopic handle. |
| 4959-H05 | Portable backpack. |
| 4959-H06 | Power adapter. |
| 4959-H07 | Spare rechargeable lithium-ion battery: 9900 mAh, nominal 10.8 V; transport and carriage subject to carrier rules. |
| 4959-H08 | Spare rechargeable lithium-ion battery: 9000 mAh, nominal 10.8 V; transport and carriage subject to carrier rules. |
| 4959-H09 | Vehicle power adapter: 12-24 V input, 19 V output for handheld measuring instruments. |
| 4959-H10 | Smart battery-charging dock. |
| 4959-H11 | MicroSD memory card: 128 GB. |
| 87233C | USB CW power sensor: 8 kHz-8 GHz, N(m). |
| 87233D | USB CW power sensor: 10 MHz-18 GHz, N(m). |
| 87233E | USB CW power sensor: 50 MHz-26.5 GHz, 3.5 mm(m). |
| 87233F | USB CW power sensor: 50 MHz-40 GHz, 2.4 mm(m). |
| 87233L | USB CW power sensor: 50 MHz-67 GHz, 1.85 mm(m). |
| 87235B | USB average-power sensor: 8 kHz-12 GHz, N(m). |
| 87235C | USB average-power sensor: 10 MHz-8 GHz, N(m). |
| 87235D | USB average-power sensor: 10 MHz-18 GHz, N(m). |
| 87235DG | USB average-power sensor: 10 MHz-18 GHz, N(m). |
| 87235F | USB average-power sensor: 10 MHz-33 GHz, 3.5 mm(m). |
| 87235FA | USB average-power sensor: 10 MHz-40 GHz, 2.92 mm(m). |
| 87235H | USB average-power sensor: 10 MHz-50 GHz, 2.4 mm(m). |
| 87235L | USB average-power sensor: 50 MHz-67 GHz, 1.85 mm(m). |
| 87236D | USB peak/average-power sensor: 50 MHz-18 GHz, N(m). |
| 87236E | USB peak/average-power sensor: 50 MHz-26.5 GHz, 3.5 mm(m). |
| 87236F | USB peak/average-power sensor: 50 MHz-40 GHz, 2.4 mm(m). |
| 87236L | USB peak/average-power sensor: 500 MHz-67 GHz, 1.85 mm(m). |
| 4959-H20 | ZE9080 directional antenna A: 9 kHz-20 MHz, N(f); H24 amplifier recommended. |
| 4959-H21 | ZE9080 directional antenna B: 20 MHz-200 MHz, N(f); H24 amplifier recommended. |
| 4959-H22 | ZE9080 directional antenna C: 200 MHz-500 MHz, N(f); H24 amplifier recommended. |
| 4959-H23 | ZE9080 directional antenna D: 500 MHz-8 GHz, N(f); H24 amplifier recommended. |
| 4959-H24 | ZE9080 antenna amplifier: 9 kHz-8 GHz, N(f), for ZE9080 A/B/C/D antenna modules; amplifier and electronic compass included. |
| 4959-H25 | ZE9080 antenna transport case: dedicated case for ZE9080 antennas, accommodating ZE9080 A/B/C/D modules and the ZE9080 amplifier. |
| 4959-H26 | 700 MHz-6 GHz directional antenna: active log-periodic, 700 MHz-6 GHz, SMA(f). |
| 4959-H27 | 680 MHz-10 GHz directional antenna: active log-periodic, 680 MHz-10 GHz, SMA(f). |
| 4959-H28 | 680 MHz-20 GHz directional antenna: active log-periodic, 680 MHz-20 GHz, SMA(f). |
| 4959-H29 | 6 GHz omnidirectional antenna: portable, 680 MHz-6 GHz, SMA(m). |
| 4959-H30 | 8 GHz omnidirectional antenna: portable, 300 MHz-8 GHz, SMA(m). |
| 4959-H31 | 700 MHz-6 GHz passive directional antenna: passive log-periodic, 700 MHz-6 GHz, SMA(f). |
| 4959-H34 | External USB electronic compass, for 4959-S11 direction finding and compatible antennas; confirm the complete configuration when selecting. |
| 4959-H35 | N/SMA-JJ RF cable (2 m): N/SMA male-male coaxial cable, DC-18 GHz, length 2 m. |
| 4959-H36 | PBS1 near-field probes: up to 9 GHz; 1 electric-field probe and 6 mm, 12 mm, 25 mm and 50 mm magnetic-field probes, 1 each; SMB(m). |
| 4959-H37 | 120 MHz real-time spectrum analysis; provides 120 MHz real-time bandwidth. |
| 4959-H38 | Handheld directional antenna: passive log-periodic, 380 MHz-20 GHz; integrated electronic compass and RF test cable with N male connector. |
| 4959-H39 | Handheld high-gain direction-finding antenna: horn, 18 GHz-40 GHz; integrated electronic compass and RF test cable with 2.92 mm male connector. |
Calibration kits and test cables
| Option / accessory model | Specification and description |
|---|---|
| 31101A | Coaxial calibration kit: N male, DC-18 GHz; for VNA, cable/antenna and vector-voltmeter calibration. |
| 31101B | Coaxial calibration kit: N female, DC-18 GHz; for VNA, cable/antenna and vector-voltmeter calibration. |
| 31121 | Coaxial calibration kit: 3.5 mm, DC-26.5 GHz; for VNA, cable/antenna and vector-voltmeter calibration. |
| 31123A | Coaxial calibration kit: 2.4 mm, DC-50 GHz; for VNA, cable/antenna and vector-voltmeter calibration. |
| 20209LB | Coaxial calibration kit: 1.85 mm, DC-67 GHz; for VNA, cable/antenna and vector-voltmeter calibration. |
| 20402D | Electronic calibration module: 100 kHz-18 GHz (N). |
| 20402E | Electronic calibration module: 10 MHz-26.5 GHz (3.5 mm). |
| 20402H | Electronic calibration module: 10 MHz-50 GHz (2.4 mm). |
| 20402L | Electronic calibration module: 10 MHz-67 GHz (1.85 mm). |
| 4959-H49 | N male-male calibration cable GORE-OSZKUZKU0240. |
| 4959-H50 | N female-male calibration cable GORE-OSZKUZKV0240. |
| 4959-H51 | 3.5 mm female-female calibration cable GORE-0RD02D02024.0. |
| 4959-H52 | 3.5 mm female-male calibration cable GORE-0RD01D02024.0. |
| 4959-H53 | 2.4 mm female-female calibration cable GORE-0K0CK0CK024.0. |
| 4959-H54 | 2.4 mm female-male calibration cable GORE-0K0CJ0CK024.0. |
| 4959-H55 | 2.4 mm female-male 50 GHz calibration cable 0Z0CJ0CK024.0. |
| 4959-H56 | 2.4 mm female-female 50 GHz calibration cable 0Z0CK0CK024.0. |
| 4959-H57 | 1.85 mm female-male 67 GHz calibration cable 0F0CB0CA024.0. |
| 4959-H58 | 1.85 mm female-female 67 GHz calibration cable 0F0CA0CA024.0. |
| 87302FZ | Test cable: 3.5/3.5-KK, female-female (0.6 m). |
| 87302FE | Test cable: 3.5/3.5-KJ, female-male (0.6 m). |
| 87302AZ | Test cable: N/N-JJ, male-male (0.6 m). |
| 87302BA | Test cable: N/N-KJ, female-male (0.6 m). |
| 87302NZ | 1.85 mm/1.85 mm-KK test cable, female-female (0.6 m). |
| 87302NY | 1.85 mm/1.85 mm-KJ test cable, female-male (0.6 m). |
| 87302QQ | 2.4 mm/2.4 mm-KK test cable, female-female (0.6 m). |
| 87302QP | 2.4 mm/2.4 mm-KJ test cable, female-male (0.6 m). |
| 4959-H63 | AL50-35FNM-01.00M test cable: 3.5 mm/N-KJ, female-male (1.0 m). |
| 4959-H64 | AL50-35MNM-01.00M test cable: 3.5 mm/N-JJ, male-male (1.0 m). |
| 4959-H65 | AL50-24F35F-01.00M test cable: 2.4 mm/3.5 mm-KK, female-female (1.0 m). |
| 4959-H66 | AL50-24F35M-01.00M test cable: 2.4 mm/3.5 mm-KJ, female-male (1.0 m). |
| 4959-H67 | USB OTDR for optical time-domain reflectometry and optical power measurements; requires S34. |
Calibration and extended-warranty options
| Option / accessory model | Specification and description |
|---|---|
| 4959B-JL | Metrological calibration service and report; only for 4959B. |
| 4959D-JL | Metrological calibration service and report; only for 4959D. |
| 4959E-JL | Metrological calibration service and report; only for 4959E. |
| 4959G-JL | Metrological calibration service and report; only for 4959G. |
| 4959H-JL | Metrological calibration service and report; only for 4959H. |
| 4959K-JL | Metrological calibration service and report; only for 4959K. |
| 4959B-EWT1 | 1-year extension after the standard warranty; adds 1 year, select 2 units for 2 years, and so on. Calibration excluded; only one-way freight included. |
| 4959D-EWT1 | 1-year extension after the standard warranty; adds 1 year, select 2 units for 2 years, and so on. Calibration excluded; only one-way freight included. |
| 4959E-EWT1 | 1-year extension after the standard warranty; adds 1 year, select 2 units for 2 years, and so on. Calibration excluded; only one-way freight included. |
| 4959G-EWT1 | 1-year extension after the standard warranty; adds 1 year, select 2 units for 2 years, and so on. Calibration excluded; only one-way freight included. |
| 4959H-EWT1 | 1-year extension after the standard warranty; adds 1 year, select 2 units for 2 years, and so on. Calibration excluded; only one-way freight included. |
| 4959K-EWT1 | 1-year extension after the standard warranty; adds 1 year, select 2 units for 2 years, and so on. Calibration excluded; only one-way freight included. |
Standard accessories
| Accessory | Description |
|---|---|
| Power cord | Included in the standard configuration; final packing list subject to the order |
| 9000 mAh rechargeable lithium-ion battery | Included in the standard configuration; final packing list subject to the order |
| Power adapter | Included in the standard configuration; final packing list subject to the order |
| Quick-start guide | Included in the standard configuration; final packing list subject to the order |
| Factory product quality certificate | Included in the standard configuration; final packing list subject to the order |
Additional information
- The product photo illustrates the 4959K (54 GHz). Appearance of other models and optional accessories depends on the actual configuration.
- The frequency coverage of an external USB power sensor or calibration kit does not extend the host spectrum/VNA frequency range. Select options and accessories to match the measurement task and connectors.
- Availability, regional coverage, fees and terms of calibration, extended warranty and shipping services are subject to quotation and order confirmation. Battery air transport and carriage must comply with carrier rules.
- Please specify frequency range, measurement tasks, interfaces, required options and quantity so we can confirm configuration and lead time.