Signal & Spectrum Analyzer

Product No: SPA-3P6G

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A spectrum analyzer (also called Signal & Spectrum Analyzer, Frequency Analyzers or RF Spectrum Analyzers) 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.













Frequency span


0 Hz,100 Hz to maximum frequency of device


± 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



Marker frequency resolution

span/(the number of sweep points -1)


±(freq indication × freq reference uncertainty +1%× span +10%× resolution bandwidth + Marker Frequency Resolution)

Frequency counter


1 Hz,10 Hz,100 Hz,1 kHz


±(marker freq × freq reference uncertainty + counter resolution)


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)


<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


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 levelDANLInput 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



Number of traces



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;


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


input signal range 0dbm~-50dbm

±1.5 dB


input 10 dB RF attenuation,1 MHz~1.5GHz

input 20 dB,1 MHz~7.5GHz


Distortion and spurious response

Second harmonic distortion

fc ≥ 50 MHz,Preamp off, signal input -30 dBm, 0 dB RF attenuation, 20 ℃ to 30 ℃


Third-order intermodulation

fc ≥ 50 MHz

+2 dBm (NSA1015/NSA1032/NSA1036) 

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 ℃


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


Continue, single


Free run, video

Tracking generator

Output frequency range

100 kHz~1.5 GHz

100 kHz~3.6 GHz(Tracking generator) 
35 MHz~3.6 GHz(Tracking generator)

100 kHz~7.5 GHz(Tracking generator)

Output power level range

-30 dBm~0 dBm ,

-40 dBm~0 dBm ,

Output power level resolution


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 ΩN-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


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


100V~240V 50/60Hz

Measuring Screen:

[grw id=”6219″]

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