What is a spectrum analyzer and explain its applications?

Name: Spectrum Analzer - Frequency Analyzers - LISUN
Brand: LISUN
SKU: SPA-3P6G
Price: 3000 USD
Availability: InStock

In its most basic form, a spectrum analyzer is a testing tool that evaluates a variety of circuit or system characteristics in the radio frequency range. Standard testing equipment would evaluate the quantity by calculating its amplitude over a certain period. It is also called a frequency analyzer. Voltmeters, for instance, use the time domain to measure voltage amplitude. We may thus expect a sinusoidal curve for alternating current voltage and a straight line for direct current voltage. On the other hand, Spectrum analyzers would evaluate the amount by plotting its amplitude against its frequency.

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Spectrum Analyzer | Frequency Analyzers

Product No: SPA-3P6G

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Description

The SPA series Spectrum Analyzer (also called Signal & Spectrum Analyzer, Frequency Analyzers or RF Spectrum Analzers) measures the magnitude of an input signal versus frequency within the full frequency range of the instrument. The primary use is to measure the power of the spectrum of known and unknown signals.

Specification:

LISUN Model	SPA-1P5G	SPA-3P6G	SPA-7P5G
Frequency
Range	9kHz-1.5GHz	9kHz-3.6GHz	9kHz-7.5GHz
Resolution	1Hz
Frequency Span
Range	0 Hz，100 Hz to maximum frequency of device
Accuracy	± span/(swept points -1)
Internal Reference
Reference Frequency	10.000000 MHz
Reference Frequency Accuracy	±[(days from last calibrate × freq aging rate) + temperature stability + initial accuracy ]
Temperature Stability	<2.5ppm (15℃ to 35℃)		<1ppm (15℃ to 35℃)
Aging Rate	<1ppm/year
Readout
Marker Frequency Resolution	span / (the number of sweep points -1)
Uncertainty	±(freq indication × freq reference uncertainty +1%× span +10%× resolution bandwidth + Marker Frequency Resolution)
Frequency Counter
Resolution	1 Hz, 10 Hz, 100 Hz, 1 kHz
Accuracy	±(marker freq × freq reference uncertainty + counter resolution)
Bandwidth
Resolution Bandwidth (-3 dB)	10Hz to 500kHz (in 1 to 10 sequence), 1MHz, 3MHz
Resolution Filter Shape Factor	<5:1 nominal (Digital implement, similar to Gauss Pattern)
Accuracy	<5% nominal
Video Bandwidth (-3 dB)	10Hz to 3MHz

Amplitude and Electric Level
Amplitude Measurement Range	DANL to +20 dBm, close the preamplifier
Reference Electric Level	-80 dBm to +30 dBm, 0.01dBm steps
Preamplifier	20 dB, nominal
Input Attenuator Range	0~40 dB, 1 dB steps		0~50 dB, 1 dB steps
Max Input DC Voltage	50 VDC
Max Continuous Power	+30dBm, average continuous power
Displayed average noise level（DANL）Input attenuation 0 dB, 1Hz resolution bandwidth
Preamp Off	1 MHz~10 MHz -140dBm (nominated)
	10 MHz~1GHz -140dBm (nominated)
	SPA-1P5G: 1GHz~1.5 GHz -138 dBm (nominated)
	SPA-3P6G: 1GHz~3.6 GHz -138 dBm (nominated)
	SPA-7P5G: 1GHz~3.6GHz -138dBm (nominated); 4GHz~5GHz, -133dBm (nominated)
	5GHz~6GHz, -128dBm (nominated); 6GHz~7GHz-123dBm (nominated)
	7GHz~7.5GHz, -118dBm (nominated)
Preamp On	1 MHz~10 MHz, -160dBm (nominated)
	10 MHz~1GHz, -160dBm (nominated)
	SPA-1P5G: 1GHz~1.5 GHz, -158 dBm (nominated)
	SPA-3P6G: 1GHz~3.6 GHz, -158 dBm (nominated)
	SPA-7P5G: 1GHz~4GHz, -158dBm( nominated ); 4GHz~5GHz, -153dBm (nominated)
	5GHz~6GHz, -148dBm (nominated); 6GHz~7GHz, -143dBm (nominated)
	7GHz~7.5GHz, -138dBm (nominated)
Phase Noise	20 ℃ ~30 ℃, fc=1 GHz
Phase Noise	<-82 dBc/Hz @10 kHz offset			<-98 dBc/Hz @10 kHz offset
	<-100 dBc/Hz @100 kHz offset
	<-110 dBc/Hz @1 MHz offset
Level Display Range
Log Scale Coordinate	1dB ~255dB
Linear Scale Coordinate	0 to reference level
Level Unit	dBm, dBuW, dBpW, dBmV, dBuV, W, V
Points	201~1001
Number of Traces	5
Detectors	Positive-peak, negative-peak, sample, normal, RMS
Trace Functions	Clear write, Max Hold, Min Hold, View, Blank, Average
Frequency response (20℃ ~30℃，30%~70% relative humidity, 20 dB input attenuation, reference 50 MHz)
Preamp Off	±0.8 dB;
Preamp On	±0.9 dB;
Accuracy
Input Attenuation Switching Uncertainty	20℃ ~30℃, fc=50 MHz, Preamplifier Off, 20dB RF attenuation, input signal 1~40 dB ±0.5 dB
Absolute Amplitude Uncertainty	20℃ ~30℃, fc=50 MHz, RBW=1 kHz, VBW=1 kHz, peak detector, 20 dB RF attenuation
	Preamplifier Off ±0.4 dB, input signal= -20dBm
	Preamplifier On ±0.5 dB, input signal= -40dBm
Uncertainty	Input signal range 0dbm~-50dbm
	±1.5 dB
VSWR	Input 10 dB RF attenuation, 1 MHz~1.5GHz			Input 20 dB, 1 MHz~7.5GHz
	<1.5, nominal
Distortion and Spurious Response
Second Harmonic Distortion	fc ≥ 50 MHz, Preamp off, signal input -30 dBm, 0 dB RF attenuation, 20 ℃ to 30 ℃
	-65dbc
Third-order Intermodulation	fc ≥ 50 MHz
	+2 dBm (NSA1015/NSA1032/NSA1036)
	+10dBm (NSA1075)
1 dB Gain Compression	fc ≥ 50 MHz, 0 dB RF attenuation, Preamp off, 20 ℃ to 30 ℃
	+2 dBm, nominal
Residual Response	connect 50 Ω load at input port, 0 dB input attenuation, 20 ℃ to 30 ℃
	<-85dBm, nominated
Input Related Spurious	-30 dBm signal at input mixer, 20 ℃ to 30 ℃
	<-60 dBc
Sweep time and triggering
Span Range	100Hz≤SPAN≤3GHz 10ms to 3000s
	Zero sweep width 1ms to 3000s
Mode	Continue, single
Trigger	Free run, video
Tracking Generator
Output Frequency Range	100 kHz~1.5 GHz	100 kHz~3.6 GHz (Tracking generator)			100 kHz~7.5 GHz (Tracking generator)
		35 MHz~3.6 GHz (Tracking generator)
Output Power Level Range	-30 dBm~0 dBm	-40 dBm~0 dBm
Output Power Level Resolution	1dB
Output FLatness	+/-3 dB
Maximum Safe Reverse Level	Average total power: +30 dBm, DC: ±50 VDC
Inputs and Outputs
Front Panel RF Input Connector	50 Ω, N-type female
Front Panel Track Generator Output	50 Ω, N-type female
10 M Reference Input	50 Ω, N-type female
Communication Port	USB HOST, USB DEVICE, LAN, earphone port, REF and VGA
General technical specification
Display	TFT LCD, 10.4 inches
Weight (without package)	About 5 kg
Dimension (W × H × D)	421 × 221 × 115 (mm)
Working Temperature	0~40 ℃
Storage Temperature	-20 °C to +60 °C
Power	100V~240V 50/60Hz