Spectrum Analysers

Spectrum analysers are widely used within the electronics industry for analysing the frequency spectrum of radio frequency, RF and audio signals. Looking at the spectrum of a signal they are able to reveal elements of the signal, and the performance of the circuit producing them. They are able to make a large variety of measurements and this means that they are an invaluable tool for the RF design development and test laboratories, as well as having many applications for specialist field service.


Spectrum analysers are an invaluable item of electronic test equipment used in the design, test and maintenance of radio frequency circuitry and equipment. They are used for observing signals in the frequency domain. Thus a spectrum analyser will display the amplitude of signals on the vertical scale, and the frequency of the signals on the horizontal scale.


Types of Spectrum Analysers


Swept spectrum analysers: Sweeping the frequency that is analysed across the required band to produce a view of the signals with their relative strengths. Type that is most widely used.


Fast Fourier Transform, FFT analysers: Converting the signals into a digital format for analysis digitally. More expensive and specialised.


Real-time analysers: Form of FFT analyser. Requiring much larger buffers and more powerful processing, these types are able to offer the top performance in signal analysis.


Audio spectrum analyser: Focussed on audio frequencies, this means that low frequency techniques can be adopted. This makes them much cheaper. It is even possible to run them on PCs with a relatively small amount of hardware.


Spectrum analysers tend to fall into 4 form factors:


  • Benchtop - can be plugged into AC power, which generally means in a lab environment or production/manufacturing area.
  • Portable – can be taken outside to make measurements or simply carried while in use.
  • Handheld - needs to be very light and small.
  • Networked - ability to connect the analyser to a network

Spectrum Analyser Tips


  • Beware input level: One major cause of damage is the input mixer being blown when the analyser is measuring high power circuits.
  • Determine if spurs are real
  • Wait for self-alignment: When first switched on, it goes through its software boot-up procedure and, undertakes a number of self-test and calibration routines.
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Täpsem kirjeldus Brand Stock Bandwidth Number of Channels Wave Traces Sweep Modes Setting Modes Series Maximum Frequency Minimum Frequency Frequency Stability Display Type Screen Size Markers RF Input Interface Type Desktop/Handheld Model Number p Dimensions Width Length Height Weight Minimum Operating Temperature Maximum Operating Temperature Plug Type Battery Type Battery Life
RS PRO RSSA-9300B Desktop Spectrum Analyser, 9 kHz → 3 GHz RS Pro 0 9 kHz → 3 GHz - Average, Average (EMI), Blank, Clear & Write, Maximum Hold, Minimum Hold, Quasi-Peak (EMI), View Continuous, Single Zero Span + Time Domain - 3GHz 9 kHz 0.025ppm Built-in Spectrogram, Dual-View Display, Topographic - Frequency N-Type Female GPIB, LAN, MicroSD, RS232, USB Desktop RSSA-9300B 350 x 100 x 210mm 100mm 350mm 210mm 4.5kg -20 °C, +5 °C +45 °C, +70 °C Type A - North American/Japanese 2-blade, Type B - North American 3-pin Li-Ion -
RS PRO RSSA-9300B TG Desktop Spectrum Analyser, 9 kHz → 3 GHz RS Pro 0 9 kHz → 3 GHz - Average, Average (EMI), Blank, Clear & Write, Maximum Hold, Minimum Hold, Quasi-Peak (EMI), View Continuous, Single Zero Span + Time Domain - 3GHz 9 kHz 0.025ppm Built-in Spectrogram, Dual-View Display, Topographic - Frequency N-Type Female GPIB, LAN, MicroSD, RS232, USB Desktop RSSA-9300B TG 350 x 100 x 210mm 100mm 350mm 210mm 4.5kg -20 °C, +5 °C +45 °C, +70 °C Type A - North American/Japanese 2-blade, Type B - North American 3-pin Li-Ion -
Rohde & Schwarz FPC1000 Desktop Spectrum Analyser, 5 kHz → 3 GHz Rohde & Schwarz 0 5 kHz → 3 GHz 1 - - Span R&SFPC 3GHz 5 kHz - WXGA 10.1in Frequency N Connector - Desktop FPC1000 396 x 147 x 178 (Without Feet) mm, 396 x 156 x 185 (With Feet) mm 147 (Without Feet) mm, 156 (With Feet) mm 396 (With Feet) mm, 396 (Without Feet) mm 178 (Without Feet) mm, 185 (With Feet) mm 3kg +10°C +40°C Type B - North American 3-pin - -
Rohde & Schwarz FPC1500 Desktop Spectrum Analyser, 5 kHz → 3 GHz Rohde & Schwarz 0 5 kHz → 3 GHz 1 - - Span R&SFPC 3GHz 5 kHz - WXGA 10.1in Frequency N Connector - Desktop FPC1500 396 x 147 x 178 (Without Feet) mm, 396 x 156 x 185 (With Feet) mm 147 (Without Feet) mm, 156 (With Feet) mm 396 (With Feet) mm, 396 (Without Feet) mm 178 (Without Feet) mm, 185 (With Feet) mm 3kg +10°C +40°C Type B - North American 3-pin - -
LeCroy T3SA3100 Desktop Spectrum Analyser, 9 kHz → 2.1 GHz LeCroy 0 9 kHz → 2.1 GHz 1 - - - T3SA3000 2.1GHz 9 kHz - WVGA 10.1in - - - Desktop T3SA3100 - - - - - - - - - -
LeCroy T3SA3200 Desktop Spectrum Analyser, 9 kHz → 3.2 GHz LeCroy 0 9 kHz → 3.2 GHz 1 - - - T3SA3000 3.2GHz 9 kHz - WVGA 10.1in - - - Desktop T3SA3200 - - - - - - - - - -
T3SA Spectrum Analyzer EMI measurement k LeCroy 0 - - - - - T3SA - - - - - - - - - - - - - - - - - - - -
T3SA Spectrum Analyzer Tracking Generato LeCroy 0 - - - - - T3SA - - - - - - - - - - - - - - - - - - - -
T3SA Spectrum Analyzer Utility Kit: Cont LeCroy 0 - - - - - T3SA - - - - - - - - - - - - - - - - - - - -
T3SA Spectrum Analyzer series Advanced m LeCroy 0 - - - - - T3SA - - - - - - - - - - - - - - - - - - - -
RS PRO ISA-730, ISP-730 Desktop Spectrum Analyser, 150 kHz → 3 GHz RS Pro 45 150 kHz → 3 GHz - - Continuous Full Span, Last Span, Zero Span - 3GHz 150 kHz - TFT LCD 5.6in Amplitude, Frequency N Connector 15-Pin Female D-Sub Connector, 9-Pin Female D-Sub Connector, RS232, USB Desktop ISA-730, ISP-730 296 x 115.1 x 152mm 115.1mm 296mm 152mm 2.2kg 5°C 45°C UK - -
RS PRO RSSA3032X Desktop Spectrum Analyser, 9 kHz → 3.2GHz RS Pro 16 9 kHz → 3.2GHz 1 Reference Continuous, Single Span, Zero Span - 3.2GHz 9 kHz <0.5 (First Year)ppm TFT LCD - Single N-Type Female RJ45, USB-A 2.0, USB-B 2.0 Desktop RSSA3032X 393 x 207 x 116.5mm 207mm 393mm 116.5mm 4.6kg 0°C +50°C - - -
Aim-TTi PSA6005USC Handheld Spectrum Analyser, 300 Hz → 10 MHz Aim-TTi 8 300 Hz → 10 MHz - Live, Reference, View Continuous, Single Centre + Span, Start + Stop - 6GHz 10 MHz ±1ppm 10.9 cm Backlit TFT LCD 480 x 272pixel Dual BNC, SMA Connector, Standard N USB Handheld PSA6005USC 49 x 92 x 192mm 92mm 49mm 192mm 560g -5°C +40°C - Lithium-Ion >3 h
Aim-TTi PSA2702 Handheld Spectrum Analyser, 30 MHz → 1.8 GHz Aim-TTi 7 30 MHz → 1.8 GHz 1 Live, Reference, View Continuous, Single Centre + Span, Start + Stop - 2.7GHz 1 MHz ±10ppm 4.3 in TFT 480 x 272pixel Dual, Single SMA Connector USB Handheld PSA2702 92 x 49 x 192mm 49mm 92mm 192mm 560g +5°C +40°C - Lithium-Ion 8 h
Aim-TTi PSA2702 Handheld Spectrum Analyser, 2.7GHz Aim-TTi 6 2.7GHz 1 Live, Reference, View Continuous, Single Centre + Span, Start + Stop - 2.7GHz 1 MHz ±10ppm 4.3 in TFT 480 x 272pixel Dual, None, Single SMA Connector - Handheld PSA2702 92 x 49 x 192mm 49mm 92mm 192mm 560g +5°C +40°C - Rechargeable Lithium-Ion 8 h
Aim-TTi PSA3605USC Handheld Spectrum Analyser, 300 Hz → 10 MHz Aim-TTi 2 300 Hz → 10 MHz - Live, Reference, View Continuous, Single Centre + Span, Start + Stop - 3.6GHz 10 MHz ±1ppm 10.9 cm Backlit TFT LCD 480 x 272pixel Dual BNC, SMA Connector, Standard N USB Handheld PSA3605USC 49 x 92 x 192mm 92mm 49mm 192mm 560g -5°C +40°C - Lithium-Ion >3 h
RS PRO RSSA3021X Desktop Spectrum Analyser, 9 kHz → 2.1GHz RS Pro 2 9 kHz → 2.1GHz 1 Reference Continuous, Single Span, Zero Span - 2.1GHz 9 kHz <0.5 (First Year)ppm TFT LCD - Single BNC RJ45, USB-A 2.0, USB-B 2.0 Desktop RSSA3021X 393 x 207 x 116.5mm 207mm 393mm 116.5mm 4.6kg 0°C +50°C - - -
Aim-TTi PSA1302 Handheld Spectrum Analyser, 1.3GHz Aim-TTi 1 1.3GHz 1 Live, Reference, View Continuous, Single Centre + Span, Start + Stop - 1.3GHz 1 MHz ±10ppm 4.3 in TFT 480 x 272pixel Dual, None, Single SMA Connector - Handheld PSA1302 92 x 49 x 192mm 49mm 92mm 192mm 560g +5°C +40°C - Rechargeable Lithium-Ion 8 h
Aim-TTi PSA3605 Handheld Spectrum Analyser, 300 Hz → 10 MHz Aim-TTi 1 300 Hz → 10 MHz - Live, Reference, View Continuous, Single Centre + Span, Start + Stop - 3.6GHz 10 MHz ±1ppm 10.9 cm Backlit TFT LCD 480 x 272pixel Dual BNC, SMA Connector, Standard N USB Handheld PSA3605 49 x 92 x 192mm 92mm 49mm 192mm 560g -5°C +40°C - Lithium-Ion >3 h
Aim-TTi PSA6005 Handheld Spectrum Analyser, 300 Hz → 10 MHz Aim-TTi 1 300 Hz → 10 MHz - Live, Reference, View Continuous, Single Centre + Span, Start + Stop - 6GHz 10 MHz ±1ppm 10.9 cm Backlit TFT LCD 480 x 272pixel Dual BNC, SMA Connector, Standard N USB Handheld PSA6005 49 x 92 x 192mm 92mm 49mm 192mm 560g -5°C +40°C - Lithium-Ion >3 h
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