Spectrum Analyzer GSP-9300B


  • Frequency Range: 9kHz ~ 3 GHz
  •  0.025ppm Frequency Stability and 1ppm aging Rate
  • Built-in Preamplifier, 50dB Attenuator, and Sequence Function
  •  RBW: 1Hz ~ 1MHz
  •  Sensitivity: -149dBm/Hz (@PreAmp on)
  • Built-in AM/FM Demodulation & Analysis
  • Built-in P1dB point, Harmonic, Channel Power, N-dB bandwidth, OCBW, ACPR, SEM, TOI, CNR, CTB, CSO, Noise Marker, Frequency Counter, Time Domain Power, Gated Sweep
  •  Built-in Spectrogram, Topographic and Dual-View Display Modes
  • Remote Control Interface: LAN, USB, RS-232
  • Options: Tracking Generator, GPIB Interface
SKU: GSP-9300B Categories: , Tag:

Product Description

Practical, Affordable and Never Careless

GSP-9300B is a 3GHz spectrum analyzer to meet basic RF measurement requirements. It provides the frequency stability of 0.025ppm; the aging rate of 1ppm/year; a built-in preamplifier; the base noise of -149dBm/Hz, and more than 20 measurement applications, including AM/FM modulation signal analysis, signal channel analysis, and CATV parameter test. While collocating with TG option, GSP-9300B can conduct frequency response or power linearity tests for components.


For monitoring signals, GSP-9300B provides Topographic display mode, which is capable of distinguishing continuous or random signals by using color temperature. Spectrogram mode provides a time axis on spectrum display that allows users to observe signal variations based upon the reference of time. Split window mode allows different parameter settings for each display window. Additionally, GSP-9300B also provides user-friendly user interfaces such as display mode, help, multi-languages, and fast data logging, etc. Interfaces and software include USB/RS-232/LXI/MicroSD/GPIB (option)/DVI output and dedicated PC software IVI Driver.


GSP-9300B, with its unique features, including auto wake-Up, sequence function, and limit line testing, is specially designed to meet the requirements of production lines. The patent design of heat conduction allows GSP-9300B to substantially reduce the warm-up time so as to expedite production processes. Options include tracking generator, carrying bag, battery module, EMI antenna set and rack accessories. The compact design of GSP-9300B satisfies either field testing or the integration of automatic testing systems.


To sum up, GSP-9300B is a stable, light and all-purpose test equipment, which is the most ideal choice for the educational market, production line, and general signal monitoring applications, etc. Most important, the pricing of GSP-9300B is beyond your imagination and it is the number one choice for users with budget considerations.


Frequency Stability: 0.025ppm Wireless communications applications are nowadays ubiquitous. Signals in the limited spectrum are getting very crowded. Therefore, the demands of signal efficiency and frequency stability are higher and stricter. To meet high precision measurement requirements, GSP-9300B provides the frequency stability of 0.025ppm and the aging rate of 1ppm/year, which only appear in high-end T&M equipment.
Built-in Preamplifier Engineers often face the challenge of measuring small RF signals during product development stage. GSP-9300B’s built-in preamplifier provides the base noise of -149dBm. When collocating with the built-in EMI filter and the dedicated EMI near field probe, GSP-9300B can conduct EMI tests and debugging.
More than 20 measurement applications GSP-9300B provides rich signal processing functions, including AM/FM modulation signal analysis, signal channel analysis, and CATV parameter test, characteristic test on signal stability, and frequency response or power linearity tests for components to substantially bring up the measurement convenience. Most competitors in the same class only offer a few test functions, and the standard built-in functions of GSP-9300B are options for competitors.

(The specifications apply when the GSP-9300B is powered on for at least 30 minutes to warm-up to a temperature of 20 ℃ to 30 ℃, unless specified otherwise.)

Frequency Range 9 kHz to 3 GHz
Resolution 1 Hz
Frequency Reference Accuracy ±(period since last adjustment X aging rate) + stability over temperature + supply voltage stability
Aging Rate ±1 ppm max. 1 year after last adjustment
Frequency Stability over Temperature ±0.025 ppm 0 to 50 °C
Supply Voltage Stability ±0.02 ppm  
Frequency Readout Accuracy Start, Stop, Center, Marker ±(marker frequency indication X frequency reference accuracy + 10% x RBW + frequency resolution)
Trace points Max 601 points, min 6 points
Marker Frequency Counter Resolution 1 Hz, 10 Hz, 100 Hz, 1 kHz
Accuracy ±(marker frequency indication X frequency reference accuracy + counter resolution) RBW/Span >=0.02 ;

Mkr level to DNL>30 dB

Frequency Span Range 0 Hz (zero span), 100 Hz to 3 GHz  
Resolution 1 Hz  
Accuracy ± frequency resolution1 RBW: Auto;
Phase Noise Offset from Carrier   Fc =1 GHz; RBW = 1 kHz, VBW = 10 Hz; Average ≥ 40
10 kHz <-88 dBc/Hz Typical
100 kHz <-95 dBc/Hz Typical
1 MHz <-113 dBc/Hz Typical
Resolution Bandwidth (RBW) Filter Filter Bandwidth 1 Hz to 1 MHz in 1-3-10 sequence -3dB bandwidth
200 Hz, 9 kHz, 120 kHz, 1MHz -6dB bandwidth
Accuracy ± 8%, RBW = 1MHz Nominal
± 5%, RBW < 1MHz Nominal
Shape Factor < 4.5:1 Normal Bandwidth ratio: -60dB:-3dB
Video Bandwidth (VBW) Filter Filter Bandwidth 1 Hz to 1 MHz in 1-3-10 sequence -3dB bandwidth
Amplitude Range Measurement Range 100 kHz to 1 MHz Displayed Average Noise Level (DANL) to 18 dBm
1 MHz to 10 MHz DANL to 21 dBm
10 MHz to 3 GHz DANL to 30 dBm
Attenuator Input Attenuator Range 0 to 50 dB, in 1 dB step Auto or manual setup
Maximum Safe Input Level Average Total Power ≤ +33 dBm Input attenuator
≥10 dB
DC Voltage ± 50 V  
1 dB Gain Compression Total Power at 1st Mixer > 0 dBm Typical;Fc  ≥ 50 MHz; preamp. off
Total Power at the Preamp > -22 dBm Typical;Fc  ≥ 50 MHz; preamp. on
  mixer power level (dBm)= input power (dBm)-attenuation (dB)
Displayed Average Noise Level (DANL) Preamp off 0 dB attenuation; RF Input is terminated with a 50Ω load. RBW 10 Hz; VBW 10 Hz; span 500 Hz; reference level =  -60dBm; trace average ≥ 40
9 kHz to 100 kHz < -93 dBm Nominal
100 kHz to 1 MHz < -90 dBm – 3 x (f/100 kHz) dB
1 MHz to 2.7 GHz < -122 dBm
2.7 GHz to 3 GHz < -116 dBm
Preamp on 0 dB attenuation; RF Input is terminated with a 50Ω load ; RBW 10 Hz; VBW 10Hz; span 500 Hz;  reference level =  -60dBm; trace average ≥ 40
100 kHz to 1 MHz < -108 dBm – 3 x (f/100 kHz) dB Nominal
1 MHz to 10 MHz < -142 dBm
10 MHz to 3 GHz < -142 dBm + 3 x (f/1 GHz) dB
Level Display Range Scales Log, Linear  
Units dBm, dBmV, dBuV, V, W  
Marker Level Readout 0.01 dB Log scale
  0.01 % of reference level Linear scale
Level Display Modes Trace, Topographic, Spectrogram Single / split Windows
Number of Traces 4  
Detector Positive-peak, negative-peak, sample,  normal, RMS(not Video) Can be setup for each trace separately
Trace Functions Clear & Write, Max/Min Hold, View, Blank, Average  
Absolute Amplitude Accuracy Absolute Point Center=160 MHz ; RBW 10 kHz; VBW 1 kHz; span 100 kHz; log scale;  1 dB/div; peak detector; 23°C±1°C; Signal at Reference Level
Preamp off ± 0.3 dB Ref level 0 dBm;
10 dB RF attenuation
Preamp on ± 0.4 dB Ref level -30 dBm;
0 dB RF attenuation
Frequency Response Preamp off Attenuation: 10 dB; Reference: 160 MHz; 20 to 30°C
100 kHz to 2.0 GHz ± 0.5 dB  
2GHz to 3 GHz ± 0.7 dB  
Preamp on Attenuation: 0 dB; Reference: 160 MHz; 20 to 30°C
1 MHz to 2 GHz ± 0.6 dB  
2 GHz to 3 GHz ± 0.8 dB  
Attenuation Switching Uncertainty Attenuator setting 0 to 50 dB in 1 dB step  
Uncertainty ± 0.25 dB reference: 160 MHz, 10dB attenuation
RBW Filter Switching Uncertainty 1 Hz to 1 MHz ± 0.25 dB reference : 10 kHz RBW
Level Measurement Uncertainty Overall Amplitude Accuracy ± 1.5 dB 20 to 30°C; frequency > 1 MHz; Signal input 0 to -50 dBm; Reference level  0 to -50 dBm;
Input attenuation 10 dB;
RBW  1 kHz; VBW 1 kHz; after cal; Preamp Off
± 0.5 dB Typical
Spurious Response Second Harmonic Intercept   Preamp off; signal input -30dBm; 0 dB attenuation
+35 dBm Typical; 10 MHz < fc < 775 MHz
+60 dBm Typical; 775 MHz ≤ fc < 1.625 GHz
Third-order Intercept   Preamp off; signal input -30dBm; 0 dB attenuation
> 1dBm 300 MHz to 3 GHz
Input Related Spurious < -60 dBc Input signal level -30 dBm, Att.

Mode, Att=0dB; 20-30ºC

Residual Response (inherent) <-90 dBm Input terminated; 0 dB attenuation; Preamp off
Sweep Time Range 204 us to 1000 s Span > 0 Hz
50 us to 1000 s Span = 0 Hz; Min Resolution = 10 us
Sweep Mode Continuous; Single  
Trigger Source Free run; Video; External  
Trigger Slope Positive or negative edge  
RF Preamplifier
  Frequency Range 1 MHz to 3 GHz  
Gain 18 dB Nominal
  (installed as standard)
Front Panel Input/Output
RF Input Connector Type N-type female  
Impedance 50 ohm Nominal
VSWR <1.6 :1 300 kHz to 3 GHz; Input attenuator ≥ 10 dB
Power for Option Connector Type SMB male  
Voltage/Current DC +7V / 500 mA max With short-circuit protection
USB Host Connector Type A plug  
Protocol Version 2.0 Supports Full/High/Low speed
MicroSD Socket Protocol SD 1.1  
Supported Cards  microSD, microSDHC Up to 32GB capacity
Rear Panel Input/Output
Reference Output Connector Type BNC female  
Output Frequency 10 MHz Nominal
Output Amplitude 3.3V CMOS  
Output Impedance 50 ohm  
Reference Input Connector Type BNC female  
Input Reference Frequency 10 MHz  
Input Amplitude -5 dBm to +10 dBm  
Frequency Lock Range Within ± 5 ppm of the input reference frequency  
Alarm Output Connector Type BNC female Open-collector
Trigger Input/ Gated Sweep Input Connector Type BNC female  
Input Amplitude 3.3V CMOS  
Switch Auto selection by function  
LAN TCP/IP Interface Connector Type RJ-45  
Base 10Base-T; 100Base-Tx; Auto-MDIX
USB Device Connector Type B plug For remote control only; supports USB TMC
Protocol Version 2.0 Supports Full/High/Low


IF Output Connector Type SMA female  
Impedance 50 ohm Nominal
IF Frequency 886 MHz Nominal
Output level -25 dBm 10 dB attenuation; RF input: 0 dBm @ 1 GHz
Earphone Output Connector Type 3.5mm stereo jack, wired for mono operation
Video Output Connector Type DVI-I ( integrated analog and digital) , Single Link. Compatible with VGA or HDMI standard  through adapter
RS232 Interface Connector Type D-sub 9-pin female Tx,Rx,RTS,CTS
GPIB Interface (Optional) Connector Type IEEE-488 bus connector  
AC Power Input Power Source AC 100 V to 240 V, 50 / 60 Hz

Auto range selection

Battery Pack (Optional) Battery pack 6 cells, Li-Ion rechargeable, 3S2P With UN38.3 Certification
Voltage DC 10.8 V  
Capacity 5200 mAh / 56Wh  
  Internal Data storage 16 MB nominal  
Power Consumption <65 W  
Warm-up Time < 30 minutes  
Temperature Range +5 °C to +45 °C Operating
-20 °C to + 70 °C Storage
Weight 4.5 kg (9.9 lb) Inc. all options (Basic+TG+GPIB+Battery)
Dimensions 210 x 350 x 100 (mm) Approximately
  8.3 x  13.8 x 3.9 (in)  
Tracking Generator (Optional)
  Frequency Range 100 kHz to 3 GHz  
Output Power -50 dBm to 0 dBm in 0.5 dB steps
Absolute Accuracy ± 0.5 dB @160 MHz, -10 dBm, Source attenuation 10 dB, 20 to 30°C
Output Flatness Referenced to 160 MHz, -10 dBm
100 kHz to 2 GHz ± 1.5 dB
2 GHz to 3 GHz ± 2 dB
Output Level Switching Uncertainty ± 0.8 dB Referenced to -10 dBm
Harmonics < -30 dBc Typical, output level = -10 dBm
Reverse Power +30 dBm max.  
Connector type N-type female  
Impedance 50 ohm Nominal
Output VSWR < 1.6:1 300 kHz to 3 GHz, source attenuation ≥ 12 dB

Power Cord, Certificate of Calibration,

CD-ROM (with Quick Start Guide, User Manual, Programming Manual, SpectrumShot Software, SpectrumShot Guide & IVI Driver)


Optional Accessories
GSC-009, Soft Carrying Case
GRA-415, Rack Adapter Panel

GSP-9300B, 3 GHz Spectrum Analyzer


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