Products

Spectrum Analyzer- GSP 930

GSP-930 is a 3GHz Spectrum Analyzer designed upon a new generation platform. The high stability, large screen display, light weight and compact size of GSP-930 benchmark a new standard for 3GHz spectrum analyzer in the market. Its advanced features, Spectrogram and Topography, greatly expand the application range and elevate the importance of a spectrum analyzer in the role as the irreplaceable RF analysis instrument.
GSP-930 provides a high frequency-stability of 25ppb (0.025ppm) and a very low noise floor of -142dBm (Pre-amplifier on) as the high sensibility measurement base. The flexible selection among 58 RBW ranges along with Spectrogram and Topographic features enable GSP-930 to capture and display transient, drifting and hopping signals in detail. The mixture of frequency domain information and time domain information facilitates the tracing of RF signal variations over time. Other remarkable features like Spectrum Emission Mask (SEM), Power Measurements, AM/FM Analysis and TOI/CNR/CSO/CTB measurements, make GSP-930 a useful instrument right fit into a broad range of applications.
The user friendly design of GSP-930 helps reduce user's stress and anxiety in using a high-tech instrument. To help user easily get access to the regulations and definitions of the measurement terms under current operation, the built-in On-Screen-Help provides definition descriptionon the screen to guide user through measurement processes without checking into documents. The widely used Icons on the display clearly indicate the current setting and operation status of the product, allowing user to handle the measurement scenario all at a glance. The wake-up clock automatically turns on the power of GSP-930 at user's pre-set time, which can be used to warm up the instrument in advance before the measurements are made to ensure the accuracy of measurement results. The Pass/Fail Limit function allows user to perform repetitive go/no-go measurements by template inspection instead of time-consuming value reading. The Sequence function provides an easy programming feature for user to edit and run measurement routines on GSP-930 screen without the need of a PC.
GSP-930 is equipped with various interfaces, including LXI, USB, RS-232 and GPIB (optional). The IVI driver is available for the remote control software development by means of LabVIEW or LabWindows/CVI. A Micro SD slot and a USB Host interface enable the memory size expansion for mass data storage. An IF output (886MHz) is provided as the intermediate frequency signal of RF inputfor users to develop their own applications. Carrying abundant communication interfaces, user-friendly operation, large screen display, light weight, compact size, and battery power operation(1), GSP-930 is developed upon a high-tech platform to provide ultimate customer benefits.

 

Features

  • Frequency Range: 9kHz ~ 3GHz
  • High Frequency Stability: 25ppb (0.025ppm)
  • RBW: 10Hz ~ 10kHz in 1-3 steps, 10kHz ~ 1MHz in 10% adjustable steps
  • Phase Noise: -88dBc/Hz @1GHz, 10kHz Offset
  • Built-in Measurement Functions: Channel Power, N-dB bandwidth, OCBW, ACPR, SEM, TOI, CNR, CTB, CSO
  • Built-in Spectrogram and Topographic Display Modes
  • Gate Sweep Function
  • 1Hz Resolution Marker Counter
  • AM/FM Demodulation Analysis
  • 886MHz IF Output for User's Extended Applications
  • Various Interface: USB Host/Device, RS-232, LXI, Micro SD, GPIB (Optional)
  • 8.4" large TFT LCD display with SVGA resolution of 800 *600
  • DVI-I Output for External Digital Display
  • Built-in Preamplifier, 50dB Attenuator, and Sequence Function
  • Optional 6GHz Power Sensor, Tracking Generator, Battery Back
Frequency
 
Range
9 kHz to 3.0 GHz
 
Resolution
1 Hz
 
Frequency Reference
 
Accuracy
±[(period since last adjustment X aging rate) + stability over temperature + supply voltage stability
Aging Rage
±2 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 resolution1)
Sweep points
601
Span > 0
6 to 601
Span = 0
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
 
Phase Noise
 
Offset from Carrier
 
Fc =1 GHz; RBW = 1 kHz, VBW = 10 Hz;Average ≥ 40
10 kHz
<-88 dBc/Hz
 
Typical2
100 kHz
<-95 dBc/Hz
 
Typical
1 MHz
<-113 dBc/Hz
 
Typical
Resolution Bandwidth (RBW) Filter
 
Filter Bandwidth
10 Hz to 3 kHz in 1-3-10 sequence
-3dB bandwidth
subtotal: 6 filters
10 kHz to 1 MHz, increment in 10% step
-3dB bandwidth;
min. RBW = 10 kHz @ zero span
Subtotal: 49 filters
200 Hz, 9 kHz, 120 kHz
-6dB bandwidth
Accuracy
± 8%, RBW ≥ 750 kHz
 
Nominal3
± 5%, RBW < 750 kHz
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
 
[1] Frequency Resolution = Span/(Sweep points - 1)
 
[2] Typical specifications in this datasheet mean that the performance can be exhibited in 80% of the units with a 95% confidence level over the temperature range 20 to 30 °C. They are not covered by the product warranty.
 
[3] Nominal values indicate expected performance. They are not covered by the product warranty.
 
 
Amplitude
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)4
 
Preamp off
0 dB attenuation; 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 10 MHz
< -122 dBm
 
10 MHz to 3 GHz
< -122 dBm
 
Preamp on
0 dB attenuation; 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
[4] DANL spec shall exclude the Spurious Response
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; 20 to 30°C; signal 0 dBm
 
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
 
 
2.0GHz to 3.0 GHz
± 0.7 dB
 
 
Preamp on
Attenuation: 0 dB; Reference: 160 MHz; 20 to 30°C
 
1 MHz to 2.0 GHz
± 0.6 dB
 
 
2.0GHz to 3.0 GHz
± 0.8 dB
 
Attenuation Switching Uncertainty
 
Attenuator setting
0 to 50 dB in 1 dB step
 
 
Uncertainty
± 0.15 dB
reference: 160 MHz, 10dB attenuation
RBW Filter Switching Uncertainty
 
10 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 < 1.5 GHz
 
 
 
 
Third-order Intercept
 
Preamp off; signal input -30dBm; 0 dB attenuation
 
> 1dBm
300 MHz to 3 GHz
 
Input Related Spurious
< -60 dBc
Input Related Spurious <-60dBc , Input signal level -30 dBm, Att. mode Auto; 20-30 degree C
 
Residual Response (inherent)
<-90 dBm
Input terminated; 0 dB attenuation; Preamp off
 
 
Sweep
Sweep Time
 
Range
22 ms 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
 
 
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Features Frequency Range: 9kHz ~ 3GHz High Frequency Stability: 25ppb (0.025ppm) RBW: 10Hz ~ 10kHz in 1-3 steps, 10kHz ~ 1MHz in 10% adjustable steps Phase Noise: -88dBc/Hz @1GHz, 10kHz Offset Built-in Measurement Functions: Channel Power, N-dB bandwidth, OCBW, ACPR, SEM, TOI, CNR, CTB, CSO Built-in Spectrogram and Topographic Display Modes Gate Sweep Function 1Hz Resolution Ma..
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