Description
The Siglent SSA5085A real-time spectrum analyser is a powerful and flexible tool for analysing complex RF spectra and signals. With a real-time bandwidth of up to 40 MHz and a POI of 7.2 μs, the analyser can display multi-dimensional data and provide advanced triggering and RF data acquisition to solve modern RF spectrum challenges such as hopping frequency, conflict channel, spectrum interference.
Applications include broadcast monitoring and evaluation, cell site, IoT, WiFi, Bluetooth surveying, research and development, education, production and maintenance.
The Siglent SSA5085A offers a large display (30.7 cm, 12.1") multi-touch display with a resolution of 1200 × 800 pixels. With this size, both variants offer a good overview of the many convenient functions such as measurements, marking and peak value tables, auto-tuning and coupling.
With these functions, signals can be quickly displayed automatically and there is less need for manual adjustment than with traditional devices.
The Siglent spectrum analysers have a very well thought-out and easy-to-use operation, which at the same time offers extensive convenience functions for all tasks. The menu navigation is intuitive to use and all functions and parameters are easy to operate thanks to a graphic display.
Features
- Frequency range of the spectrum analyser from 9 kHz to 26.5 GHz
- -165 dBm/Hz Displayed average noise level (typ.)
- -105 dBc/Hz at 1 GHz, 10 kHz offset SSB phase noise (typ.)
- 25 MHz/40 MHz Real-time analysis bandwidth (optional)
- 100 % POI 7.20 μs, dynamic range 60 dB, multi-view for density, spectrogram and PvT
- Channel power, ACPR, OBW, harmonic, TOI measurement etc. (opt.)
- Analogue modulation analysis and vector digital modulation analysis (opt.)
- 12.1 inch multi-touch screen, HDMI output
- Web browser remote control on PC and mobile devices and file operation

Hardware details
The SIGLENT SSA5000A spectrum analysers are powerful and flexible tools for complex RF spectrum and signal analysis. With real-time spectrum analysis capability, the analyser can provide multi-dimensional data displays and advanced triggering to solve modern RF spectrum challenges such as channel power measurement, hopping frequency, conflict channel and spectrum interference.
Applications include broadcast monitoring/evaluation, cell sites, IoT, WLAN and Bluetooth surveying, research and development, education, production and maintenance.
Product highlights

Modulation analysis mode
Analogue AM/FM/PM modulation and ASK/FSK/PSK/MSK/QAM vector modulation analysis

Real-time analysis mode
Multi-view and dimensions for monitoring complex signals

Spectrum analyser mode
Various RF spectrum measurements and analyses
Technical Data
Model comparison | ![]() SSA5083A | ![]() SSA5085A |
---|---|---|
Max. Bandwidth | 13.6 GHz | 26.5 GHz |
Real-time bandwidth | 25 MHz, 40 MHz (option) | 25 MHz, 40 MHz (option) |
Preamplifier | Option | Option |
EMI filter (option) | 200 Hz, 9 kHz, 120 kHz, 1 MHz | 200 Hz, 9 kHz, 120 kHz, 1MHz |
AMK CHP/ACPR/TOI/OBW/Monitor | Option (option) | Option |
AMA AM/FM | AM/FM option | Option |
DMA ASK/FSK/PSK/QAM | Option | Option |
Touch Screen | Yes | Yes |
Resolution bandwidth (RBW) | 1 Hz ~ 3 MHz, in 1-3-10 sequence | 1 Hz ~ 3 MHz, in 1-3-10 sequence |
Display of average DANL, min. | -165 dBm/Hz | -165 dBm/Hz |