{"id":2518,"date":"2025-06-19T19:36:32","date_gmt":"2025-06-19T11:36:32","guid":{"rendered":"https:\/\/www.ledphotometer.com\/blog\/spectrum-analyzer-frequency-analyzers\/"},"modified":"2025-07-01T16:47:42","modified_gmt":"2025-07-01T08:47:42","slug":"spectrum-analyzer-frequency-analyzers","status":"publish","type":"post","link":"https:\/\/www.ledphotometer.com\/pl\/produkty\/spectrum-analyzer-frequency-analyzers\/","title":{"rendered":"Signal & Spectrum Analyzer"},"content":{"rendered":"

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.<\/p>\n

Specification:<\/strong><\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
LISUN Model<\/td>\nSPA-1P5G<\/td>\nSPA-3P6G<\/td>\nSPA-7P5G<\/td>\n<\/tr>\n
Frequency<\/td>\n<\/tr>\n
Range<\/td>\n9kHz-1.5GHz<\/td>\n9kHz-3.6GHz<\/td>\n9kHz-7.5GHz<\/td>\n<\/tr>\n
Resolution<\/td>\n1Hz<\/td>\n<\/tr>\n
Frequency Span<\/td>\n<\/tr>\n
Range<\/td>\n0 Hz\uff0c100 Hz to maximum frequency of device<\/td>\n<\/tr>\n
Accuracy<\/td>\n\u00b1 span\/(swept points -1)<\/td>\n<\/tr>\n
Internal Reference<\/td>\n<\/tr>\n
Reference Frequency<\/td>\n10.000000 MHz<\/td>\n<\/tr>\n
Reference Frequency Accuracy<\/td>\n\u00b1[(days from last calibrate \u00d7 freq aging rate) + temperature stability + initial accuracy ]<\/td>\n<\/tr>\n
Temperature Stability<\/td>\n<2.5ppm (15\u2103 to 35\u2103)<\/td>\n<1ppm (15\u2103 to 35\u2103)<\/td>\n<\/tr>\n
Aging Rate<\/td>\n<1ppm\/year<\/td>\n<\/tr>\n
Readout<\/td>\n<\/tr>\n
Marker Frequency Resolution<\/td>\nspan \/ (the number of sweep points -1)<\/td>\n<\/tr>\n
Uncertainty<\/td>\n\u00b1(freq indication \u00d7 freq reference uncertainty +1%\u00d7 span +10%\u00d7 resolution bandwidth + Marker Frequency Resolution)<\/td>\n<\/tr>\n
Frequency Counter<\/td>\n<\/tr>\n
Resolution<\/td>\n1 Hz, 10 Hz, 100 Hz, 1 kHz<\/td>\n<\/tr>\n
Accuracy<\/td>\n\u00b1(marker freq \u00d7 freq reference uncertainty + counter resolution)<\/td>\n<\/tr>\n
Bandwidth<\/td>\n<\/tr>\n
Resolution Bandwidth (-3 dB)<\/td>\n10Hz to 500kHz\u00a0 (in 1 to 10 sequence), 1MHz, 3MHz<\/td>\n<\/tr>\n
Resolution Filter Shape Factor<\/td>\n<5:1 nominal (Digital implement, similar to Gauss Pattern)<\/td>\n<\/tr>\n
Accuracy<\/td>\n<5% nominal<\/td>\n<\/tr>\n
Video Bandwidth (-3 dB)<\/td>\n10Hz to 3MHz<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Amplitude and Electric Level<\/td>\n<\/tr>\n
Amplitude Measurement Range<\/td>\nDANL to +20 dBm, close the preamplifier<\/td>\n<\/tr>\n
Reference Electric Level<\/td>\n-80 dBm to +30 dBm, 0.01dBm steps<\/td>\n<\/tr>\n
Preamplifier<\/td>\n20 dB, nominal<\/td>\n<\/tr>\n
Input Attenuator Range<\/td>\n0~40 dB, 1 dB steps<\/td>\n0~50 dB, 1 dB steps<\/td>\n<\/tr>\n
Max Input DC Voltage<\/td>\n50 VDC<\/td>\n<\/tr>\n
Max Continuous Power<\/td>\n+30dBm, average continuous power<\/td>\n<\/tr>\n
Displayed average noise level\uff08DANL\uff09Input attenuation 0 dB, 1Hz resolution bandwidth<\/td>\n<\/tr>\n
Preamp Off<\/td>\n1 MHz~10 MHz -140dBm (nominated)<\/td>\n<\/tr>\n
10 MHz~1GHz -140dBm (nominated)<\/td>\n<\/tr>\n
SPA-1P5G: 1GHz~1.5 GHz -138 dBm (nominated)<\/td>\n<\/tr>\n
SPA-3P6G: 1GHz~3.6 GHz -138 dBm (nominated)<\/td>\n<\/tr>\n
SPA-7P5G: 1GHz~3.6GHz -138dBm (nominated); 4GHz~5GHz, -133dBm (nominated)<\/td>\n<\/tr>\n
5GHz~6GHz, -128dBm (nominated); 6GHz~7GHz-123dBm (nominated)<\/td>\n<\/tr>\n
7GHz~7.5GHz, -118dBm (nominated)<\/td>\n<\/tr>\n
Preamp On<\/td>\n1 MHz~10 MHz, -160dBm (nominated)<\/td>\n<\/tr>\n
10 MHz~1GHz, -160dBm (nominated)<\/td>\n<\/tr>\n
SPA-1P5G: 1GHz~1.5 GHz, -158 dBm (nominated)<\/td>\n<\/tr>\n
SPA-3P6G: 1GHz~3.6 GHz, -158 dBm (nominated)<\/td>\n<\/tr>\n
SPA-7P5G: 1GHz~4GHz,\u00a0 -158dBm( nominated ); 4GHz~5GHz, -153dBm (nominated)<\/td>\n<\/tr>\n
5GHz~6GHz, -148dBm (nominated); 6GHz~7GHz, -143dBm (nominated)<\/td>\n<\/tr>\n
7GHz~7.5GHz, -138dBm (nominated)<\/td>\n<\/tr>\n
Phase Noise<\/td>\n20 \u2103 ~30 \u2103, fc=1 GHz<\/td>\n<\/tr>\n
Phase Noise<\/td>\n<-82 dBc\/Hz @10 kHz offset<\/td>\n<-98 dBc\/Hz @10 kHz offset<\/td>\n<\/tr>\n
<-100 dBc\/Hz @100 kHz offset<\/td>\n<\/tr>\n
<-110 dBc\/Hz @1 MHz offset<\/td>\n<\/tr>\n
Level Display Range<\/td>\n<\/tr>\n
Log Scale Coordinate<\/td>\n1dB ~255dB<\/td>\n<\/tr>\n
Linear Scale Coordinate<\/td>\n0 to reference level<\/td>\n<\/tr>\n
Level Unit<\/td>\ndBm, dBuW, dBpW, dBmV, dBuV, W, V<\/td>\n<\/tr>\n
Points<\/td>\n201~1001<\/td>\n<\/tr>\n
Number of Traces<\/td>\n5<\/td>\n<\/tr>\n
Detectors<\/td>\nPositive-peak, negative-peak, sample, normal, RMS<\/td>\n<\/tr>\n
Trace Functions<\/td>\nClear write, Max Hold, Min Hold, View, Blank, Average<\/td>\n<\/tr>\n
Frequency response (20\u2103 ~30\u2103\uff0c30%~70% relative humidity, 20 dB input attenuation, reference 50 MHz)<\/td>\n<\/tr>\n
Preamp Off<\/td>\n\u00b10.8 dB;<\/td>\n<\/tr>\n
Preamp On<\/td>\n\u00b10.9 dB;<\/td>\n<\/tr>\n
Accuracy<\/td>\n<\/tr>\n
Input Attenuation Switching Uncertainty<\/td>\n20\u2103 ~30\u2103, fc=50 MHz, Preamplifier Off, 20dB RF attenuation, input signal 1~40 dB \u00b10.5 dB<\/td>\n<\/tr>\n
Absolute Amplitude Uncertainty<\/td>\n20\u2103 ~30\u2103, fc=50 MHz, RBW=1 kHz, VBW=1 kHz, peak detector, 20 dB RF attenuation<\/td>\n<\/tr>\n
Preamplifier Off \u00b10.4 dB, input signal= -20dBm<\/td>\n<\/tr>\n
Preamplifier On \u00b10.5 dB, input signal= -40dBm<\/td>\n<\/tr>\n
Uncertainty<\/td>\nInput signal range 0dbm~-50dbm<\/td>\n<\/tr>\n
\u00b11.5 dB<\/td>\n<\/tr>\n
VSWR<\/td>\nInput 10 dB RF attenuation, 1 MHz~1.5GHz<\/td>\nInput 20 dB, 1 MHz~7.5GHz<\/td>\n<\/tr>\n
<1.5, nominal<\/td>\n<\/tr>\n
Distortion and Spurious Response<\/td>\n<\/tr>\n
Second Harmonic Distortion<\/td>\nfc \u2265 50 MHz, Preamp off, signal input -30 dBm, 0 dB RF attenuation, 20 \u2103 to 30 \u2103<\/td>\n<\/tr>\n
-65dbc<\/td>\n<\/tr>\n
Third-order Intermodulation<\/td>\nfc \u2265 50 MHz<\/td>\n<\/tr>\n
+2\u00a0dBm\u00a0(NSA1015\/NSA1032\/NSA1036)<\/td>\n<\/tr>\n
+10dBm (NSA1075)<\/td>\n<\/tr>\n
1 dB Gain Compression<\/td>\nfc \u2265 50 MHz, 0 dB RF attenuation, Preamp off, 20 \u2103 to 30 \u2103<\/td>\n<\/tr>\n
+2 dBm, nominal<\/td>\n<\/tr>\n
Residual Response<\/td>\nconnect 50 \u03a9 load at input port, 0 dB input attenuation, 20 \u2103 to 30 \u2103<\/td>\n<\/tr>\n
<-85dBm, nominated<\/td>\n<\/tr>\n
Input Related Spurious<\/td>\n-30 dBm signal at input mixer, 20 \u2103 to 30 \u2103<\/td>\n<\/tr>\n
<-60 dBc<\/td>\n<\/tr>\n
Sweep time and triggering<\/td>\n<\/tr>\n
Span Range<\/td>\n100Hz\u2264SPAN\u22643GHz 10ms to 3000s<\/td>\n<\/tr>\n
Zero sweep width 1ms to 3000s<\/td>\n<\/tr>\n
Mode<\/td>\nContinue, single<\/td>\n<\/tr>\n
Trigger<\/td>\nFree run, video<\/td>\n<\/tr>\n
Tracking Generator<\/td>\n<\/tr>\n
Output Frequency Range<\/td>\n100 kHz~1.5 GHz<\/td>\n100 kHz~3.6 GHz (Tracking generator)<\/td>\n100 kHz~7.5 GHz (Tracking generator)<\/td>\n<\/tr>\n
35 MHz~3.6 GHz (Tracking generator)<\/td>\n<\/tr>\n
Output Power Level Range<\/td>\n-30 dBm~0 dBm<\/td>\n-40 dBm~0 dBm<\/td>\n<\/tr>\n
Output Power Level Resolution<\/td>\n1dB<\/td>\n<\/tr>\n
Output FLatness<\/td>\n+\/-3 dB<\/td>\n<\/tr>\n
Maximum Safe Reverse Level<\/td>\nAverage total power: +30 dBm, DC: \u00b150 VDC<\/td>\n<\/tr>\n
Inputs and Outputs<\/td>\n<\/tr>\n
Front Panel RF Input Connector<\/td>\n50 \u03a9, N-type female<\/td>\n<\/tr>\n
Front Panel Track Generator Output<\/td>\n50 \u03a9, N-type female<\/td>\n<\/tr>\n
10 M Reference Input<\/td>\n50 \u03a9, N-type female<\/td>\n<\/tr>\n
Communication Port<\/td>\nUSB HOST, USB DEVICE, LAN, earphone port, REF and VGA<\/td>\n<\/tr>\n
General technical specification<\/td>\n<\/tr>\n
Display<\/td>\nTFT LCD, 10.4 inches<\/td>\n<\/tr>\n
Weight (without package)<\/td>\nAbout 5 kg<\/td>\n<\/tr>\n
Dimension (W \u00d7 H \u00d7 D)<\/td>\n421 \u00d7 221\u00a0\u00d7 115\u00a0(mm)<\/td>\n<\/tr>\n
Working Temperature<\/td>\n0~40 \u2103<\/td>\n<\/tr>\n
Storage Temperature<\/td>\n-20 \u00b0C to +60 \u00b0C<\/td>\n<\/tr>\n
Power<\/td>\n100V~240V 50\/60Hz<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Measuring Screen:<\/strong><\/p>\n

\n

\"\"<\/p>\n

Measuring screen<\/span><\/p>\n<\/div>\n

\n

\"\"<\/p>\n

Measuring screen<\/span><\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

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 […]<\/p>\n","protected":false},"author":1,"featured_media":3701,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[271],"class_list":["post-2518","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-products","tag-spa-3p6g"],"_links":{"self":[{"href":"https:\/\/www.ledphotometer.com\/pl\/wp-json\/wp\/v2\/posts\/2518","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ledphotometer.com\/pl\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ledphotometer.com\/pl\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ledphotometer.com\/pl\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ledphotometer.com\/pl\/wp-json\/wp\/v2\/comments?post=2518"}],"version-history":[{"count":0,"href":"https:\/\/www.ledphotometer.com\/pl\/wp-json\/wp\/v2\/posts\/2518\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ledphotometer.com\/pl\/wp-json\/wp\/v2\/media\/3701"}],"wp:attachment":[{"href":"https:\/\/www.ledphotometer.com\/pl\/wp-json\/wp\/v2\/media?parent=2518"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ledphotometer.com\/pl\/wp-json\/wp\/v2\/categories?post=2518"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ledphotometer.com\/pl\/wp-json\/wp\/v2\/tags?post=2518"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}