S3331 Series Handheld Spectrum Analyzer

Saluki S3331 series handheld spectrum analyzer provides advance features and functions of benchtop analyzers. S3331 series has functions like spectrum analysis, interference analysis, ACPR, OBW, Channel power, AM/FM, limit line etc. S3331 series spectrum analyzer has very competitive price and is a low cost solution for 7.5GHz field spectrum measurement.

Key Features

Frequency range from 9kHz to 3.6GHz/ 7.5GHz

High sensitive, best DANL <-160 dBm

Standard 1.5GHz/ 3.2GHz tracking source

Standard pre-amplifier, spectrogram, OBW, ACPR etc.

4h battery life, 6.5 inch large screen, portable size for using

  • Portable Spectrum Analyzer, 9 kHz to 7.5 GHz

    Saluki S3331 series handheld spectrum analyzer is designed for field use. It has a low weight, rubber protection, compact structure and a good performance. S3331 series can be operated in field for 4 hours with battery power supply. It also provides telecommunication ports such as USB and LAN for remote data collection and remote control. Using the standard SCPIcommand set, users can quickly set up and upgrade an integrated test system for measurement.


    S3331 series has 2 modules to choose.

    •  9 kHz to 3.6 GHz

    •  9 kHz to 7.5 GHz

  • Abundant Auxiliary Test Interface, Physical Keys

    Equipped 6.5-inch high brightness LCD screen, physical keys and robust design, S3331 series is suitable for field use.


    S3331 series has a standard built-in tracking source 1.5GHz or 3.2GHz for different modules. And it also provides a variety of optional accessories, including directional antenna, omnidirectional antenna, near field probe kit, SWR bridge, USB power sensor etc.


    Various optional RF accessories for your choice!

  • Great Technical Specifications

    •  Frequency range: cover from 9 kHz to 7.5 GHz


    •  Low displayed average noise level: best DANL < -161dBm (typical)


    •  Good phase noise performance:  (500MHz carrier)

    -100dBc/Hz@100kHz frequency offset (S3331A), -90dBc/Hz@100kHz frequency offset (S3331B)


    •  Standard tracking source: frequency range from 100kHz to 1.5GHz/ 3.2GHz, output power from -30dBm to 0dBm


    •  Resolution bandwidth: 1Hz – 500kHz (1-10 steps), 1MHz, 3MHz

  • Multiple Measurement Functions

    S3331 series portable spectrum analyzer can offer a variety of measurement functions.


    •  Multi-trace, multi-marker table, limit line display

    •  Interference analysis (spectrogram)

    •  AM/FM modulation analysis

    •  FFT 1Hz RBW

    •  Advanced measurement, ACPR/OBW/Channel power etc.

  • Wide Applications and Scenes

    •  Broadband spectrum monitor


    •  Interference analysis


    •  EMI pre-compliance test


    •  Counter surveillance


    •  Wireless transmitter test / troubleshooting

  • Three Years Warranty, Local Service

    3 Years Warranty
    Saluki S3331 series spectrum analyzer enjoys a 3 years warranty.


    Local Distributors, Local Service

    Saluki has distributors and partners all around the world. All our partners will provide you with local service.


    Support Team at Your Service

    Contact us any time and all your problems will be replied to within 24h.


    Pay Less and Get More

    Saluki provides you with good spectrum analyzers at an affordable price.

Frequency Range

S3331A: 9 kHz to 3.6 GHz,
S3331B: 9 kHz to 7.5 GHz

Tuning Resolution

1 Hz

RBW Range

1 Hz – 50 kHz, 1 MHz, 3 MHz

VBW Range

10 Hz – 3 MHz

Displayed Average Noise Level (Preamplifier On)


•  100kHz – 1MHz: <-120dBm-3×(f/100kHz) dB

•  1MHz – 10MHz: <-150dBm

•  10MHz – 1GHz: <-155dBm

•  1GHz – 3.6GHz: <-148dBm


•  100kHz – 1MHz: <-110dBm-3×(f/100kHz) dB

•  1MHz – 10MHz: <-140dBm

•  10MHz – 2GHz: <-148dBm

•  2GHz – 3.4GHz: <-143dBm

•  3.4GHz – 5GHz: <-145dBm

•  5GHz – 7.5GHz: <-138dBm

(CF = 1GHz, RBW=1 Hz)

Displayed Average Noise Level (Preamplifier Off)


•  100kHz – 1MHz: <-100dBm-3×(f/100kHz) dB

•  1MHz – 10MHz: <-130dBm

•  10MHz – 1GHz: <-135dBm

•  1GHz – 3.6GHz: <-130dBm


•  100kHz – 1MHz: <-95dBm-3×(f/100kHz) dB

•  1MHz – 10MHz: <-125dBm

•  10MHz – 2GHz: <-133dBm

•  2GHz – 3.4GHz: <-130dBm

•  3.4GHz – 5GHz: <-133dBm

•  5GHz – 7.5GHz: <-127dBm

(CF = 1GHz, RBW=1 Hz)

SSB Phase Noise


•  ≤-90 dBc/Hz @ 30kHz offset

•  ≤-100 dBc/Hz @ 100kHz offset

•  ≤-110 dBc Hz @ 1MHz offset


•  ≤-80 dBc/Hz @ 30kHz offset

•  ≤-90 dBc/Hz @ 100kHz offset

•  ≤-110 dBc/Hz @ 1MHz offset

Max. Safe Input Level (CW input)

S3331A:+27 dBm

S3331B:+23 dBm

Input Attenuator Range

S3331A:0 – 39 dB, steps of 3 dB

S3331B:0 – 30 dB, steps of 1 dB

TOI (>30MHz)

+13 dBm

SHI (>10MHz)

+30 dBm

Input Related Spurious (>10MHz)


Inherent Residual Response (>10MHz)


Test Port

Type-N female (50Ω)

Communication Port

USB 2.0, LAN

Reference Input/ Output

10MHz: Input level 0dBm to +10dBm,

BNC female: Output level 0dBm±2dB

Trigger Input Port

BNC female


6.5 inch TFT LCD (resolution 600*480)


288 (H) × 182 (W) × 60 (D)mm


2.8 kg (including battery)

Battery Life

4 hours (typ.)

Main Machine

Module No. Item Description
S3331A Handheld Spectrum Analyzer 9 kHz to 3.6 GHz
S3331B Handheld Spectrum Analyzer 9 kHz to 7.5 GHz


Module No. Item Description
S3331-01 Rechargeable lithium-ion battery Backup
S3331-02 Portable Soft Package /
S3331-03 Field Strength Measurement /
S3331-04 Directional Antenna Frequency range: 600MHz - 8GHz
S3331-05 Omnidirectional Antenna Frequency range: 300MHz - 7.5GHz
S3331-06 Near Field Probe Kit /
S3331-07 SWR Bridge Frequency range: 10MHz - 3.6GHz
S3331-08 USB Power Sensor Frequency range: 10MHz - 6GHz
  • Brief Introduction

  • Typical Operation

Saluki Technology