Portable/Benchtop Spectrum Analyzers and Signal Analyzers
Last Updated: April 1, 2025
Description
Portable and benchtop spectrum analyzers and signal analyzers are instruments designed to measure and display the frequency spectrum of electrical signals. They provide a visual representation of signal levels and distortions, allowing users to observe the amplitude versus frequency of a given signal source. These analyzers are essential tools for examining signal stability, distortion, amplitude, and modulation quality.
Working Principle
Spectrum analyzers operate by converting a time-domain signal into a frequency-domain representation using the Fourier transform. This process involves mapping the input signal into a set of sines and cosines, which are then displayed as a spectrum. The spectrum analyzer functions as a frequency-selective, peak-responding voltmeter, calibrated to display the root mean square (rms) value of a sine wave. This capability allows users to measure and analyze the power of signals across a wide frequency range, making them invaluable for identifying and troubleshooting interference issues in RF communications.
Applications
Spectrum analyzers are widely used in various fields, including electronic warfare testing and satellite communication network analysis. They are particularly useful for locating and identifying interference threats, such as those affecting satellite communications. Additionally, they are employed in research and development labs, manufacturing, and field service to ensure compliance with emission regulations and to optimize system performance.
Advantages over other Spectrum Analyzers and Signal Analyzers
Portable and benchtop spectrum analyzers offer several advantages over other types of analyzers. For instance, some models are rugged enough to meet military specifications, making them suitable for use in harsh environments. They also provide a 10 dB improvement in displayed average noise level (DANL), which is crucial for measuring low-noise signals and detecting weak interferers. Furthermore, these analyzers are often lighter and more compact than alternative solutions, enhancing their portability and ease of use in the field.
Limitations
Despite their advantages, portable and benchtop spectrum analyzers have limitations. Some models may lack the advanced features found in standalone units, particularly those integrated into other equipment like communication analyzers. Additionally, while they are designed for portability, their performance may be constrained by factors such as battery life and environmental conditions.
Considerations
When selecting a portable or benchtop spectrum analyzer, several factors should be considered. Initial costs can vary significantly depending on the model and features, with more sophisticated units commanding higher prices. Operating expenses, including calibration and maintenance, should also be factored into the decision-making process. Durability is another critical consideration, especially for units intended for use in challenging environments. Accuracy is paramount, as it directly impacts the reliability of measurements. Finally, potential buyers should evaluate the replacement and maintenance costs to ensure the long-term viability of their investment.
from Siglent Technologies NA, Inc.
SIGLENT SHA850A, a handheld portable spectrum analyzer and cable-and-antenna analyzer, is a powerful and flexible tool for those field and outdoor RF applications. With a frequency range up to 7.5 GHz, the analyzer delivers reliable automatic measurements and multiple modes of operation. A spectrum... [See More]
- Special Instrument Type: Portable
- Test Type: Modulation
- Analyzer Type: Instrument
- Analysis Type: Fast Fourier Transform; Swept-Tuned
from Siglent Technologies NA, Inc.
The SIGLENT SSA3000X Plus series spectrum analyzers are powerful and flexible tools for RF signal and network analysis. With a frequency range to 7.5 GHz, the analyzer delivers reliable automatic measurements and multiple modes of operation: spectrum analyzer the base, optional functions include RF... [See More]
- Special Instrument Type: Portable
- Frequency Range: 9 to 1.50E6
- Analyzer Type: Instrument
- User Interface: Front Panel
from Siglent Technologies NA, Inc.
Siglent's SSA3000X family of spectrum analyzers offer a frequency range of 9 KHz to 2.1/3.2 GHz. With their light weight, small size, and friendly user interface, the SSA3000s present a large, bright easy to read display, powerful and reliable automatic measurements, and plenty of impressive... [See More]
- Special Instrument Type: Portable
- Frequency Range: 9 to 2.10E6
- Analyzer Type: Instrument
- User Interface: Front Panel
from Siglent Technologies NA, Inc.
The SIGLENT SSA3000X-R real-time spectrum analyzers are powerful and flexible tools for complex RF signal monitor and analysis. With a capability of 40 MHz analysis bandwidth and 7.2 µs 100% POI, the analyzer can provide multi-dimensions data displays, advanced triggering, and RF data capturing, to... [See More]
- Special Instrument Type: Portable
- Frequency Range: 9 to 3.20E6
- Analyzer Type: Instrument
- User Interface: Front Panel
from Siglent Technologies NA, Inc.
The SIGLENT SSA5000A spectrum analyzers are powerful and flexible tools for complex RF spectrum and signal analysis. With the capability of real-time spectrum analysis, the analyzer can provide multi-dimensions data displays, and advanced triggering to solve modern RF spectrum challenges, like... [See More]
- Special Instrument Type: Portable
- Test Type: Modulation
- Analyzer Type: Instrument
- Analysis Type: Fast Fourier Transform; Swept-Tuned
from Siglent Technologies NA, Inc.
SIGLENT'S SSG5000X series of signal generators can generate analog and vector signals, and have a frequency range of 9 kHz to 4 GHz/6 GHz. They feature the industry-leading performance in phase noise, spectral purity, bandwidth, EVM, output power. The internal IQ modulation generator and waveform... [See More]
- Special Instrument Type: Portable
- Frequency Range: 9 to 4.00E6
- Analyzer Type: Instrument
- User Interface: Front Panel
from Siglent Technologies NA, Inc.
The SIGLENT SVA1000X series spectrum & vector network analyzers are powerful and flexible tools for broadcast and RF device testing. With a wide frequency range from 9 kHz to 1.5 GHz, the analyzer delivers reliable automatic measurements and plenty of features including a tracking generator and... [See More]
- Special Instrument Type: Portable
- Frequency Range: 9 to 1.50E6
- Analyzer Type: Instrument
- User Interface: Front Panel
from Siglent Technologies NA, Inc.
The SIGLENT SNA5000A series of Vector Network Analyzers have a frequency range of 9 kHz to 8.5 GHz and 100 kHz to 26.5 GHz, which support 2/4-port scattering parameter, differential-parameter, and time-domain parameter measurements. The SNA5000A series of VNAs are effective instrumentation for... [See More]
- Special Instrument Type: Portable
- Frequency Range: 9 to 4.50E6
- Analyzer Type: Instrument
- User Interface: Front Panel
from OROS
OR35 is the portable real-time multi-analyzer that integrates the best of sound & vibration analysis technology in a truly mobile instrument. OR35 is the synthesis of the ultimate OR3x technology and OROS' wealth of experience of measurement. Designed to be the best for field operations, OR35 takes... [See More]
- Special Instrument Type: Portable
- Test Type: Noise
- Analyzer Type: Instrument; PC (optional feature)
- Analysis Type: Fast Fourier Transform
from Tektronix, Inc.
From USB spectrum analyzers to benchtop real time spectrum analyzers, Tektronix has a suite of powerful RF analysis tools for many applications. Comprehensive spectrum analysis is included for free with SignalVu software, and options are available for vector signal analysis, pulsed measurements,... [See More]
- Special Instrument Type: Portable
- Analyzer Type: PC
from Rohde & Schwarz USA, Inc.
The high-performance R &S ®FSW signal and spectrum analyzer was developed to meet demanding customer requirements. Offering low phase noise, wide analysis bandwidth and straightforward and intuitive operation, the analyzer makes measurements fast and easy. Key Facts. Frequency range from 2... [See More]
- Special Instrument Type: Portable
- Frequency Range: 0.0020 to 8.50E7
- Analyzer Type: Instrument
- Resolution: 1
from EA Elektro-Automatik Inc.
Keithley 2400 Graphical Series SMU instruments offer four-quadrant precision voltage and current source/load coupled with measurement now on an intuitive touchscreen user interface. These instruments can simultaneously source and measure current from 10 fA to 10 A pulse and/or voltage from 100 nV to... [See More]
- Special Instrument Type: Portable
- Analyzer Type: Instrument
from Kaelus
Kaelus introduced the first commercial PIM testing analyzer in 1996 and continues to lead the industry today. Kaelus offers 2 series of portable PIM analyzers and a full line of PIM testing accessories. The iPA PIM Analyzer, a light weight, battery-powered unit, is the most popular PIM testing... [See More]
- Special Instrument Type: Portable
- Test Type: Modulation; Noise
- Analyzer Type: PC
- Frequency Range: 698000 to 2.69E6
from thinkRF
RELIABLE, HIGH SPEED, UNINTERRUPTED WIRELESS NETWORKS WITH thinkRF R5550. The thinkRF R5550 Real-Time Spectrum Analyzer is built on innovative and highly optimizable software-defined radio technologies that provide more flexibility, greater coverage, and increased functionality. Designed and built... [See More]
- Special Instrument Type: Portable
- Test Type: Noise
- Analyzer Type: PC
- Analysis Type: Swept-Tuned
from Wayne Kerr Electronics
A frequency response analyzer measures the gain and phase response characteristics with respect to frequency of the device or system under test, by applying a frequency swept sine-wave to it and examining its response signal. The FRA5022 supports for measurement frequencies of 0.1 mHz to 100 kHz. [See More]
- Special Instrument Type: Portable
- Frequency Range: 1.00E-7 to 100
- Analyzer Type: Instrument
- Dynamic Range: 120
from Teledyne LeCroy
Teledyne Test Tools new T3SA3000 family of Spectrum Analyzers offers a frequency range of 9 KHz to either 2.1/3.2 GHz alongside many impressive features. With their light weight, small form factor, and user friendly interface, these Spectrum Analyzers take powerful and reliable automatic... [See More]
- Special Instrument Type: Portable
- Test Type: Distortion
- Analyzer Type: Instrument
- Analysis Type: Fast Fourier Transform
from Fujian Lilliput Optoelectronics Technology Co., Ltd.
Frequency Range from 9 kHz up to 7.5 GHz. - -160dBm Displayed Average Noise Level. - Phase Noise -98dBc/Hz @1Gz and offset at 10KHz. - Total Amplitude Accuracy <1.5dB. - 10Hz Minimum Resolution Bandwidth (RBW). - EMI Pre-compliance Test Kit, optional EMC test software. - Standard Pass/Fail... [See More]
- Special Instrument Type: Portable
- Test Type: Modulation
- Analyzer Type: Instrument
from Red Pitaya, d.o.o.
SDRlab 122-16 External clock is based on the SDRlab 122-16 model that is modified to be used with an external clock oscillator, which is important especially for RF applications that operate at other frequencies, require better quality clock or clock synchronization. [See More]
- Special Instrument Type: Handheld; Portable
- Test Type: Modulation; Distortion; Noise
- Analyzer Type: Instrument; PC
- Analysis Type: Fast Fourier Transform; Swept-Tuned
from OROS
OR36 models are intended for advanced needs in acoustic and vibration analysis measurements, for R&D as well as for testing. OR36 is a synthesis of components usually used separately for measurements. OR36 includes an acquisition front-end, with conditioning and sampling, a time domain recorder and... [See More]
- Special Instrument Type: Portable
- Test Type: Noise
- Analyzer Type: Instrument; PC (optional feature)
- Analysis Type: Fast Fourier Transform
from EA Elektro-Automatik Inc.
Keithley ’s Series 2600B System SMU instruments are the industry standard current-voltage source and measure solution for highly automated production test applications. Both dual- and single-channel models tightly integrate a precision power supply, true current source, DMM, and electronic... [See More]
- Special Instrument Type: Portable
- Analyzer Type: Instrument
from thinkRF
MOBILE RF APPLICATIONS FOR WIRELESS SITUATIONAL AWARENESS WITH thinkRF R5750. The thinkRF R5750 Real-Time Spectrum Analyzer with GPS is built for mobile wireless situational awareness applications such as RF drive testing, coverage mapping, propagation analysis, direction finding & transmitter... [See More]
- Special Instrument Type: Portable
- Test Type: Noise
- Analyzer Type: PC
- Analysis Type: Swept-Tuned
from Wayne Kerr Electronics
A frequency response analyzer measures the gain and phase response characteristics with respect to frequency of the device or system under test, by applying a frequency swept sine-wave to it and examining its response signal. The FRA5087/FRA5097 supports for measurement frequencies of 0.1 mHz to... [See More]
- Special Instrument Type: Portable
- Frequency Range: 1.00E-7 to 15000
- Analyzer Type: Instrument
- Dynamic Range: 140
from Fujian Lilliput Optoelectronics Technology Co., Ltd.
Frequency range 9kHz - 1.5GHz. - -160 dBm Displayed Average Noise Level (DANL). - Phase noise -80 dBc/Hz @1GHz and offset at 10 kHz. - Total amplitude accuracy <0.7 dB. - 1 Hz minimum resolution bandwidth (RBW). - EMI pre-compliance test kit, optional EMC test software. - Optional tracking... [See More]
- Special Instrument Type: Portable
- Test Type: Modulation; Distortion; Noise
- Analyzer Type: Instrument
- Host Connection: USB
from Red Pitaya, d.o.o.
SDRlab 122-16 was developed specifically for software-defined radio and more demanding RF applications. [See More]
- Special Instrument Type: Handheld; Portable
- Test Type: Modulation; Distortion; Noise
- Analyzer Type: Instrument; PC
- Analysis Type: Fast Fourier Transform; Swept-Tuned
from OROS
OR38 models are intended for advanced needs in acoustic and vibration analysis measurements, for R&D as well as for testing. OR38 is a synthesis of components usually used separately for measurements. OR38 includes an acquisition front-end, with conditioning and sampling, a time domain recorder and... [See More]
- Special Instrument Type: Portable
- Test Type: Noise
- Analyzer Type: Instrument; PC (optional feature)
- Analysis Type: Fast Fourier Transform
from EA Elektro-Automatik Inc.
The System SourceMeter ® 10 µsec Pulser/Source Measure Unit (SMU) Instrument combines the power of a high current/high speed pulser with measure and the full functionality of a traditional SMU in a single instrument. Its impressive 10 A @ 10 V at 10 μs pulse width and full 1 MS/s... [See More]
- Special Instrument Type: Portable
- Analyzer Type: Instrument
from Wayne Kerr Electronics
ZGA5920 was developed as a comprehensive analyzer for measuring impedance and gain-phase, and for accurately determining the responses and performance of measurement objects. To provide the measurement information that researchers and engineers need, we offer a measurement environment that achieves... [See More]
- Special Instrument Type: Portable
- Frequency Range: 1.00E-7 to 15000
- Analyzer Type: Instrument
- Dynamic Range: 140
from Red Pitaya, d.o.o.
SIGNALlab 250-12 is most sophisticated Red Pitaya product, built for more demanding industrial applications and research, where robustness and performance matter more than cost. [See More]
- Special Instrument Type: Handheld; Portable
- Test Type: Modulation; Distortion; Noise
- Analyzer Type: Instrument; PC
- Analysis Type: Fast Fourier Transform; Swept-Tuned
from EA Elektro-Automatik Inc.
The 2606B High Density System SourceMeter (SMU) Instrument offers four 20-watt SMU channels in a 1U high form factor chassis. As manufacturers need to optimize plant floor space and reduce test time and costs, the 2606B improves density by 3 times, increases throughput, and minimizes the need to add... [See More]
- Special Instrument Type: Portable
- Analyzer Type: Instrument
from Red Pitaya, d.o.o.
SIGNALlab 250-12 is most sophisticated Red Pitaya product, built for more demanding industrial applications and research, where robustness and performance matter more than cost. [See More]
- Special Instrument Type: Handheld; Portable
- Test Type: Modulation; Distortion; Noise
- Analyzer Type: Instrument; PC
- Analysis Type: Fast Fourier Transform; Swept-Tuned
from EA Elektro-Automatik Inc.
Keithley ’s Standard Series 2400 Source Measure Unit (SMU) Instruments offer four-quadrant precision voltage and current source/load coupled with measurement. Each SMU instrument is both a highly stable DC power source and a true instrument-grade 6 ½-digit multimeter. The power source... [See More]
- Special Instrument Type: Portable
- Analyzer Type: Instrument
from Red Pitaya, d.o.o.
STEMlab 125-14 4 Inputs is based on STEMlab 125-14 board, but instead of 2 inputs and 2 output channels offers 4 Input channels that with improved performance. [See More]
- Special Instrument Type: Handheld; Portable
- Test Type: Modulation; Distortion; Noise
- Analyzer Type: Instrument; PC
- Analysis Type: Fast Fourier Transform; Swept-Tuned
from EA Elektro-Automatik Inc.
Keithley instrumentation makes it easy to build a LIV (light-current-voltage) system to test laser diode modules cost-effectively. 2520 Pulse Laser Diode Test System: Synchronizing test system providing sourcing and measurement capability for pulsed and continuous LIV test. TEC SourceMeter SMUs,... [See More]
- Special Instrument Type: Portable
- Analyzer Type: Instrument
from Red Pitaya, d.o.o.
STEMlab 125-14 is our most versatile and popular product, which was introduced to the market in 2013 when Red Pitaya was established. Since then it has been used in a wide variety of contexts, from hobbyists and ham radio operators to industry, research, and space applications. [See More]
- Special Instrument Type: Handheld; Portable
- Test Type: Modulation; Distortion; Noise
- Analyzer Type: Instrument; PC
- Analysis Type: Fast Fourier Transform; Swept-Tuned
from EA Elektro-Automatik Inc.
The 2650 Series High Power SourceMeter SMU Instruments are designed specifically for characterizing and testing high voltage/current electronics and power semiconductors, such as diodes, FETs, and IGBTs, high brightness LEDs, DC-DC converters, batteries, solar cells, and other high power materials,... [See More]
- Special Instrument Type: Portable
- Analyzer Type: Instrument
from Red Pitaya, d.o.o.
STEMlab 125-14 is our most versatile and popular product, which was introduced to the market in 2013 when Red Pitaya was established. Since then it has been used in wide variety of contexts, from hobbyists and ham radio operators to industry, research and space applications. [See More]
- Special Instrument Type: Handheld; Portable
- Test Type: Modulation; Distortion; Noise
- Analyzer Type: Instrument; PC
- Analysis Type: Fast Fourier Transform; Swept-Tuned
from EA Elektro-Automatik Inc.
The RSA306B USB spectrum / signal analyzer might be small but it packs a big punch. It ’s loaded with features you ’d expect from spectrum analyzers twice the size and twice the price. Perfect for everyday tasks. [See More]
- Special Instrument Type: Portable
- Frequency Range: 9 to 6.20E6
- Analyzer Type: Instrument
from Red Pitaya, d.o.o.
STEMlab 125-14 Edu Pack is based on Red Pitaya's best-selling DAQ platform and with the chosen accessories a perfect fit for educational purposes. [See More]
- Special Instrument Type: Handheld; Portable
- Test Type: Modulation; Distortion; Noise
- Analyzer Type: Instrument; PC
- Analysis Type: Fast Fourier Transform; Swept-Tuned