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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Description Price Bandwidth Number of Channels Wave Traces Sweep Modes Setting Modes Maximum Frequency Minimum Frequency Frequency Stability Display Type Screen Size Markers RF Input Interface Type Desktop/Handheld
RS Stock No. 826-2710
Mfr. Part No.58350-1240
BrandAim-TTi
PHP147,714.02
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units
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
RS Stock No. 787-7683
Mfr. Part No.PSA2702USC
BrandAim-TTi
PHP101,787.50
Each
units
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
RS Stock No. 826-2708
Mfr. Part No.58350-2340
BrandAim-TTi
PHP124,995.05
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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
RS Stock No. 826-2717
Mfr. Part No.58350-2540
BrandAim-TTi
PHP145,933.96
Each
units
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
RS Stock No. 826-2714
Mfr. Part No.58350-2440
BrandAim-TTi
PHP165,710.05
Each
units
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
RS Stock No. 768-3447
Mfr. Part No.PSA1302
BrandAim-TTi
PHP73,612.72
Each
units
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
RS Stock No. 768-3444
Mfr. Part No.PSA2702
BrandAim-TTi
PHP92,178.76
Each
units
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
RS Stock No. 787-7674
Mfr. Part No.PSA1302USC
BrandAim-TTi
PHP87,944.40
Each
units
30 MHz → 1.8 GHz 1 Live, Reference, View Continuous, Single Centre + Span, Start + Stop 1.3GHz 1 MHz ±10ppm 4.3 in TFT 480 x 272pixel Dual, Single SMA Connector USB Handheld