Description
Overview
GAOTek Spectrum Analyzer with Wide Frequency Range has excellent performance to test dynamic range, phase noise, amplitude accuracy and test speed. This device has various test functions including: high-sensitivity spectrum analysis, power measurement, IQ analysis, transient analysis, pulse parameter analysis, audio frequency analysis, analog demodulation measurement, and phase noise test etc. Such functions can provide a reliable high-performance test service. It has good extension capacity. Its performance can be further improved by flexible configuration of different options. Because of various digital and analog signal output interfaces, this spectrum analyzer can be used to perform the establish test systems and can also be consider to the secondary level development. It can be widely used for signal and equipment test in field of aviation, aerospace, radar detection, communication, electronic countermeasures, and navigation.
Key Features
- Wide frequency ranges of 3 Hz to 50 GHz. The frequency can be extended up to 500 GHz (with external frequency extension option).
- 3 analyzing bandwidth configuration: 10 MHz (standard), 40 MHz, 200 MHz.
- Excellent test & receiving performance.
- Supports frequency sweep and FFT sweep.
- Zero frequency band fast sweep, the fastest sweep time: 1 μs.
- Accurate frequency counting, counting resolution: 0.001 Hz.
- 6 wave-detection modes, 3 average types.
- Time gate measurement support.
- Occupied bandwidth, channel power, adjacent channel power test functions.
- Test functions of power statistics, burst power, harmonic distortion, TOI, spurious emission etc.
- Transient analysis and signal playback analysis.
- Supports 250M samples (64bits accuracy) seamless capture data storage.
- Supports multiple storage formats of signal files: CSV, DAT etc.
- Supports the playback analysis of signal files.
- Phase noise test function (Optional).
- Analog demodulation analysis function (Optional).
- Transient analysis function (Optional).
- Pulse signal analysis function (Optional).
- Audio frequency analysis (Optional).
- External mixer test covering up to 325 GHz (Optional).
- Flexible analog & digital signal output interface.
- External-built digital recorder, support two media type: SSD and HDD.
- Easy & convenient operation.
- Humanized automatic tuning and automatic scale.
- One-click measurement.
- 10.1-inch LCD with 1280×800 resolution display.
- Supports multiple auxiliary interfaces of USB, LAN, GPIB, monitor etc. for user’s convenience.
Applications
- Comprehensive performance assessment of electronic systems in fields of radar and communication etc.
- Test and diagnosis of transmitter and receiver.
- Can be directly used for the integration of complex test & diagnosis systems, and provide signal output, data output and result analysis for the system.
Technical Specifications
| Frequency Range | 3 Hz – 50 GHz
Note- Frequency range will be different for each product module number. Please see the “Ordering information” section for more detail on frequency range for each module number. |
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| 10MHz Precise frequency reference | Frequency accuracy: ± (last calibration date × aging rate ＋ temperature stability ＋ calibration accuracy)
Aging rate: ± 1 × 10-7/ year Temperature stability: ±1.5 × 10-8 (20 °C ~ 30 °C) / (68 °F ～ 86 °F) ± 5 × 10-8 (0 °C ~ 55 °C) / (32°F 131°F) (±1.5 x 10-8) Calibration accuracy: ± 4 x 10-8 |
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| Frequency readout accuracy | ± (frequency readout × frequency reference accuracy＋0.1% frequency band＋5% resolution bandwidth＋2Hz＋0.5 horizontal resolution*)
*: horizontal resolution = span/ (sweep points number – 1) |
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| Frequency counting accuracy | ± (frequency readout × frequency reference accuracy＋0.1 Hz) | |||||||
| Span | Range: 0 Hz (zero span), 10 Hz ～ the highest frequency of the model
Accuracy: ± (0.1 % × span ＋ span / (sweep points number -1 )) |
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| Sweep time range | Span ≥10 Hz: 1 ms ～4000s
Span = 0 Hz: 1 us ～ 6000s |
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| Resolution Bandwidth | Range: 1 Hz ～ 3 MHz (1, 2, 3, 5 stepping) 4, 5, 6, 8, 10 MHz
Conversion uncertainty: £ ± 0.3 dB |
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| Video bandwidth | 1Hz ～ 3 MHz (1, 2, 3, 5 stepping) 4, 5, 6, 8, 10 MHz (rated value) | |||||||
| Signal analyzing bandwidth | 10 Hz ～ 10 MHz (standard), 40 MHz (option), 200 MHz (option) | |||||||
| Memory depth | 500 M Samples | |||||||
| Trigger mode | Free, power source, video, external level (front panel), external level (back panel), burst RF, timer | |||||||
| Wave-detection mode | Normal, positive peak, negative peak, sampling, video average power average, voltage average | |||||||
| SSB phase noise (1 GHz carrier, 20 °C ~ 30 °C) | Frequency offset | Feature | Typical | |||||
| 100 Hz | -96 dBc/Hz | -105 dBc/Hz | ||||||
| 1 kHz | -115 dBc/Hz | -118 dBc/Hz | ||||||
| 10 kHz | -125 dBc/Hz | -129 dBc/Hz | ||||||
| 100 kHz | -125 dBc/Hz | -129 dBc/Hz | ||||||
| Residual FM (central frequency 1 GHz, resolution bandwidth 10 Hz, video bandwidth 10 Hz) | ≤(0.25 Hz x N) p-p, the rated value within 20 ms N is the number of frequency multiple times of LO |
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Displayed average noise level (the input end is connected to match load, sampling or average wave detection, the average type is logarithm, 0 dB input attenuation, RF gain takes the DANL as the priority, 20 °C ~ 30 °C) |
Frequency range | Feature | Typical | With preamplifier (on) | With preamplifier (on, typical) | |||
| 10 MHz～1 GHz | -153 dBm/Hz | -156 dBm/Hz | -162 dBm/Hz | -164 dBm/Hz | ||||
| 1 GHz～2 GHz | -151 dBm/Hz | -154 dBm/Hz | -162 dBm/Hz | -165 dBm/Hz | ||||
| 2 GHz～3 GHz | -150 dBm/Hz | -153 dBm/Hz | -160 dBm/Hz | -164 dBm/Hz | ||||
| 3 GHz～3.6 GHz | -148 dBm/Hz | -151 dBm/Hz | -156 dBm/Hz | -163 dBm/Hz | ||||
| 3.6 GHz～4 GHz | -145 dBm/Hz | -148 dBm/Hz | -155 dBm/Hz | -162 dBm/Hz | ||||
| 4 GHz～4.4 GHz | -148 dBm/Hz | -152 dBm/Hz | -155 dBm/Hz | -164 dBm/Hz | ||||
| 4.4 GHz～9 GHz | -150 dBm/Hz | -152 dBm/Hz | -155 dBm/Hz | -164 dBm/Hz | ||||
| 9 GHz～18 GHz | -148 dBm/Hz | -151 dBm/Hz | -154 dBm/Hz | -160 dBm/Hz | ||||
| 18 GHz～26.5GHz | -143 dBm/Hz | -146 dBm/Hz | -154 dBm/Hz | -157 dBm/Hz | ||||
| 26.5 GHz～40 GHz | -138 dBm/Hz | -144 dBm/Hz | -150 dBm/Hz | -152 dBm/Hz | ||||
| 40 GHz～50 GHz | -133 dBm/Hz | -141 dBm/Hz | -145 dBm/Hz | -150 dBm/Hz | ||||
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Frequency response & absolute amplitude accuracy (10 dB attenuation, 20 °C ~ 30 °C) |
Frequency range | Feature | Typical feature | Preamplifier on/off | Preamplifier on/off (typical) | |||
| 3 Hz ～ 20 MHz | < ± 0.7 dB | < ± 0.5 dB | < ± 1.2 dB/±1.5 dB | < ± 0.6 dB/± 0.6 dB | ||||
| 20 MHz ～2GHz | < ± 0.5 dB | < ± 0.4 dB | < ± 1.0 dB/±1.5 dB | < ± 0.6 dB/± 0.8 dB | ||||
| 2 GHz ～3.6 GHz | < ± 0.7 dB | < ± 0.5 dB | < ± 1.2 dB/±1.5 dB | < ± 0.6 dB/± 0.9 dB | ||||
| 3.6 GHz ～4 GHz | < ± 1.0 dB | < ± 0.8 dB | < ± 1.5 dB/±1.8 dB | < ± 1.0 dB/± 1.2 dB | ||||
| 4 GHz ～ 9 GHz | < ± 1.5 dB | < ± 0.9 dB | < ± 2.0 dB/±2.5 dB | < ± 1.3 dB/± 1.5 dB | ||||
| 9 GHz ～18GHz | < ± 2.0 dB | < ± 1.0 dB | < ± 2.5 dB/±3.0 dB | < ± 1.5 dB/± 1.6 dB | ||||
| 18 GHz ～26.5 GHz | < ± 2.5 dB | < ± 1.2 dB | < ± 3.0 dB/±3.5 dB | < ± 1.6 dB/± 1.8 dB | ||||
| 26.5 GHz ～ 40 GHz | < ± 3.0 dB | < ± 1.8 dB | < ± 3.5 dB/±4.0 dB | < ± 2.2 dB/± 2.3 dB | ||||
| 40 GHz ～ 50 GHz | < ± 3.0 dB | < ± 2.0 dB | < ± 3.5 dB/±4.0 dB | < ± 2.4 dB/± 2.6 dB | ||||
| Absolute amplitude accuracy (10 dB attenuation, 20 °C ~ 30 °C, 1 Hz ≤resolution bandwidth≤ 1 MHz, input signal -10 ～ -50 dBm):
±0.24 dB 500 MHz ± (0.24 dB +frequency response) all frequency |
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| 1dB gain compression (mixer level, dual-tone test, resolution bandwidth is 5kHz, 3MHz frequency interval, 20°C ~ 30°C) | Frequency Range | Feature | ||||||
| 20 MHz～40 MHz | -3 dBm | |||||||
| 40 MHz～200 MHz | +1 dBm | |||||||
| 200 MHz～4 GHz | +3 dBm | |||||||
| 4 GHz～9 GHz | -1 dBm | |||||||
| 9 GHz～50 GHz | +1 dBm | |||||||
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TOI distortion (input mixer 2 -10 dBm signal test, frequency interval is 50 kHz, 20 °C ~ 30 °C) |
Frequency range | Feature | Typical feature | |||||
| 10 MHz～200 MHz | +13 dBm | +15 dBm | ||||||
| 200 MHz～4 GHz | +13 dBm | +16 dBm | ||||||
| 4 GHz～9 GHz | +11 dBm | +15 dBm | ||||||
| 9 GHz～18 GHz | +13 dBm | +15 dBm | ||||||
| 18 GHz～50 GHz | +13 dBm | +17 dBm | ||||||
| Residual response (the input end is connected to match load, 0 dB attenuation) | • -100 dBm, 200 kHz ～ 9 GHz
• -100 dBm (rated value), other frequency |
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| Dimensions | W×H×D= 498 mm × 192 mm × 532 mm (19.61 in x 7.56 in x 20.94 in) (including handle, foot-pad, bottom feet)
W×H×D= 426 mm × 177 mm × 460 mm (18.19 in x 6.97 in x 18.11 in) (excluding handle, foot-pad, bottom feet) |
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| Weight | About 25 kg (55.116 lbs.) (different configuration cause different weight) | |||||||
| Power supply | AC 220/240 V: 50/60 Hz | |||||||
| Power consumption | Standby: less than 20 W; operating: less than 400 W | |||||||
| Temperature Range | Operating temperature: 0 °C ～ +50 °C (32 °F ～122 °F);
Storage temperature: -40 °C ～ +70 °C (-40 °F ～ 158 °F) |
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| Input connector | GAO-SAU-105-A/B/C/D: type N (female), impedance: 50 Ω
GAO-SAU-105-E: 3.5 mm (0.14 in) (male), impedance: 50 Ω GAO-SAU-105-F/GAO-SAU-105-G/GAO-SAU-105-H: 2.4 mm (0.094 in) (male), impedance: 50 Ω |
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Ordering Information
| Module No. | Frequency |
| GAO-SAU-105-A | 3 Hz ～ 4 GHz |
| GAO-SAU-105-B | 3 Hz ～ 9 GHz |
| GAO-SAU-105-C | 3 Hz ～ 13.2 GHz |
| GAO-SAU-105-D | 3 Hz ～ 18 GHz |
| GAO-SAU-105-E | 3 Hz ～ 26.5 GHz |
| GAO-SAU-105-F | 3 Hz ～ 40 GHz |
| GAO-SAU-105-G | 3 Hz ～ 45 GHz |
| GAO-SAU-105-H | 3 Hz ～50 GHz |
Packaging List
| Sr. No. | Item Description | Quantity |
| 1 | Main Unit | 1 |
| 2 | Power Cord (Standard 3-core power cord) | 1 |
| 3 | USB Mouse | 1 |
| 4 | User Manual | 1 |
| 5 | Programming Manual | 1 |
Optional Accessories
| Sr. No. | Item Description | Function |
| 1 | Back panel RF input | To post position the RF signal input interface |
| 2 | High/intermediate frequency output | Output secondary IF signal, output frequency range is 275 MHz ～ 475 MHz, stepping resolution is 1Hz. |
| 3 | IF output | Output third IF signal, output frequency range is 10MHz ～ 160 MHz, stepping resolution is 1Hz。 |
| 4 | Reconstruction IF/video signal output | To realize IF, AM/FM or I/Q signal output in form of digital reconstruction, the bandwidth upper limit is 40 MHz. |
| 5 | Wide band reconstruction IF/video signal output | To realize IF, AM/FM or I/Q signal output in form of digital reconstruction, bandwidth range is 50MHz ～ 100 MHz. |
| 6 | Wide band logarithm wave-detection output | To output the logarithm wave-detection signal which can reflect the input signal level characteristics) |
| 7 | 40MHz bandwidth digital interface | To output real-time broadband collecting data through optical fiber, support max. 400 MHz bandwidth signal data output. |
| 8 | 200MHz bandwidth digital interface | To output real-time broadband collecting data through optical fiber, support max. 200 MHz bandwidth signal data output. |
| 9 | +24V DC power supply | +24V DC power supply |
| 10 | Data recorder | Configured with SSD data recorder (have same interface characteristics) to realize real-time large-capacity recording of signal data. |
| 11 | AV4712 data recorder | Configured with HDD data recorder (have same interface characteristics) to realize real-time large-capacity recording of signal data. |
| 12 | Electronic attenuator | Frequency range: 3 Hz ～ 4 GHz, attenuation range: 30 dB, 1 dB stepping. |
| 13 | Low-noise preamplifier | Can select low-waveband preamplifier or full-waveband preamplifier. When you select full-waveband preamplifier, we provide above 4 GHz frequency band noise optimization path. |
| 14 | Pre-selector bypass | The tracking pre-selector in the bypass receiving channel. |
| 15 | 40MHz analyzing bandwidth | Support 10 Hz ～ 40 MHz analyzing bandwidth. |
| 16 | 200MHz analyzing bandwidth | Support 10 Hz ～ 200 MHz analyzing bandwidth. |
| 17 | Audio analysis | Realize audio frequency signal parameter test, distortion test and waveform analysis |
| 18 | External frequency extension | To extend the frequency range using external frequency mixing method. This option provides LO output and IF input, as well as signal recognition ability. |
| 19 | Phase noise test | SSB phase noise curves and single-point phase noise test. |
| 20 | Analog demodulation analysis | modulation characteristics and distortion characteristics analysis of AM, FM, PM signals |
| 21 | Transient analysis | To realize the test & analysis of transient parameters, spectrum, and time-varying characteristics of signals, support playback of the recorded data. |
| 22 | Pulse signal analysis | Automatic test on time, level and modulation parameters of pulse waveform and statistical analysis of pulse sequence |
| 23 | Aluminum transportation case | High-strength lightweight aluminum transportation case, with handle and roller, convenient for transportation. |
Additional Information
Main Features
Wide frequency range
- Covering coaxial frequency range up to 50 GHz.
- 8 optional frequency band configuration, more economical.
- Can be configured with broad frequency band preamplifier corresponding to the frequency band of main unit.
- The frequency can be extended up to 500GHz (with external frequency extension option).
Maximum 200 MHz analyzing bandwidth
- Provide 3 analyzing bandwidth configuration: 10 MHz (standard), 40 MHz, 200 MHz etc.
- The bandwidth can be flexibly selected: from 10 Hz to 200 MHz, more than 40 levels.
- According to the selected bandwidth, the seamless capture time differs from 2 s to several hours.
Excellent test & receiving performance
- 1 GHz measurement DANL is -156 dBm/Hz; with preamplifier on, the typical value is -167 dBm/Hz.
- 50 GHz measurement DANL is -141 dBm/Hz; configured with preamplifier, the typical value is -150 dBm/Hz.
- Full digital IF design, excellent scale fidelity and IF error.
Comprehensive spectrum analysis capability
- Support frequency sweep and FFT sweep.
- Zero frequency band fast sweep, the fastest sweep time is 1 µs.
- Accurate frequency counting, counting resolution can be 0.001 Hz.
- Sweep point number can be arbitrarily selected among 101～30001.
- Can be configured with 6 traces, have abundant marker operation functions.
- 6 wave-detection modes, 3 average types.
- Time gate measurement support.
- Occupied bandwidth, channel power, adjacent channel power test functions.
- Test functions of power statistics, burst power, harmonic distortion, TOI, spurious emission etc.
Transient analysis and signal playback analysis
- Frequency-domain and time-domain correlation test is helpful for understanding and deeply analyzing transient signal events.
- Waterfall diagram display, analyzing the macroscopic law of analysis signal spectrum changing over time.
- Simultaneously analyze the changes of analysis signal frequency, amplitude, and phase over time, to assist the test in the process of power control and frequency locking.
- Support 250M samples (64bits accuracy) seamless capture data storage.
- Support multiple storage formats of signal files: CSV, DAT etc.
- Support the playback analysis of signal files.
Plentiful optional functions
- Phase noise test function.
- Analog demodulation analysis function.
- Transient analysis function.
- Pulse signal analysis function.
- Audio frequency analysis.
- External mixer test covering up to 325 GHz.
Flexible analog & digital signal output interfaces
- 275 MHz～475 MHz high/intermediate frequency output, 1 Hz frequency stepping.
- 10 MHz～160 MHz IF output, 1Hz frequency stepping, 4-gear automatic gain control level.
- Digital reconstruction signal output, provide IF, AM/FM demodulation and IQ demodulation signal output.
- Digital signal output, 1X or 4X optical fiber output channel, real-time data interface to record broadband IQ data.
- External-built digital recorder, support two media type: SSD and HDD.
Easy & convenient operation
- Humanized automatic tuning and automatic scale.
- One-click measurement.
- 10.1 inch LCD with 1280*800 resolution, to display the measurement results more clearly.
- Support multiple auxiliary interfaces of USB, LAN, GPIB, monitor etc. for user’s convenience.