Vector Signal Analyzer 


A6 is a vector signal analyzer with compact design. With excellent testing performance and measurement sensitivity, A6 satisfies the testing requirements of the majority of RF signals. A6 satisfies the needs of general spectrum test, signal demodulation of GSM, WCDMA, LTE and NB-IoT signals. In terms of system integration, PCB version module product is available and API library is provided for secondary development.


Category: .
  • Frequency range: 1MHz to 6000MHz
  • Signal demodulation: FM, LTE, (AM, GSM, WCDMA, and NB-IoT signal in the future)
  • DANL: -166 dBm @1GHz (Sensitivity set to High, normalized to 1Hz)
  • Resolution bandwidth: 10Hz to 5MHz
  • Signal storage depth of 1Gbit for signal capture and analysis
  • API library is provided for secondary development

Product features

  • Compact size and easy to carry
  • Excellent performance indexes
  • Support communication mode and IOT signal analog output
  • Wide power adjusting range
  • Multiple controlling modes with simplified interface

Typical applications

  • Signal demodulation
  • Laboratory RF test
  • System integration
  • Production test
  • Teaching demonstration
Signal demodulation
  • A6 can do GSM, WCDMA and LTE signal demodulation.
  • FM/AM demodulation are supported.
  • NB-IoT signal demodulation is also supported.
General test in laboratory, factory, school, etc.
  • General spectrum analysis
  • Display in waterfall plot rage power output
  • Easy installation and set-up
System integration
  • General spectrum analysis
  • Secondary development
  • Small size and low power consumption
  • PCB version is also avaible
Radio fans
  • Help to understand the spectrum analysis
  • Facilitate testing
  • In-depth understanding and development
  • Internet of Things



Low, Medium and High


Digital signals, FM, and LTE (AM, GSM, WCDMA, and NB-IoT will be supported in the future)


Frequency Range

1MHz to 6GHz

Frequenc Reference

Aging rate: ±1ppm

Readout Accuracy

±( (readout frequency + 1GHz) x Frequency
Reference + Frequency Span Accuracy x Span)

Frequency Span Accuracy


Sweep Time

1.2ms to 1600s

3.99ms to 1600s, zero span

Resolution bandwidth

RBW Range

10Hz to 5MHz, (1-2-3-5-10 Sequence)

RBW Accuracy


RBW1MHz, ±2%


Measuring Range

Display Average Noise Level to +20dBm

Input Attenuator Range

0 to 30dB, 1dB Step

Maximum Safe Input Level

Sensitivity: +30dBm (Low)

Sensitivity: 0dBm (Medium)

Sensitivity: -20dBm (High)

Reference Level Range

-140 dBm to +20dBm

-190dBm to +70dBm (Ref level offset: ON)

Amplitude Accuracy

ATT set to 0dB, Input Signal: -5 to -30 dBm; Detector set to Positive; Sensitivity set to
Low; RBW Auto-Coupled, all other settings Auto-Coupled, 23±5℃

Half hour warm-up required.


RBW Switching Uncertainty


Input Attenuator Uncertainty


Accuracy of Reference Level

Reference level: ≥-60dBm, ±0.8dB

Display Average Noise Level (DANL) @1GHz

Terminated, Detector set to Positive, Trace Average set to 1000, Span set to
50kHz, Ref set to -100dBm, all other settings auto-coupled, 23±5

Normalized to 1 Hz RBW

Sensitivity: Low

-129dBm/Hz (typically -132dBm/Hz)

Sensitivity: Medium

-149dBm/Hz (typically -152dBm/Hz)

Sensitivity: High

-166dBm/Hz (typically -168dBm/Hz)

Residual Response


Input-Related Response

10MHz to 1.1GHz


1.1GHz to 1.85GHz, 2.9GHz to 2.97GHz


1.85GHz to 2.9GHz, 2.97GHz to 3.11GHz, 3.7GHz to 5.6GHz


5.2GHz to 5.8GHz


3.11GHz to 3.7GHz, 5.6GHz to 6.0GHz 


Second Harmonic Distortion

1.6GHz -70dBc

Third-Order Intercept (TOI)

-10dBm tones, 1MHz apart, Sensitivity set to low, Ref set to -10 dBm



+5dBm (nominal)

Phase Noise @1GHz

-95dBc/Hz, @10kHz (typically -98dBc/Hz)

-115dBc/Hz, @1MHz (typically -120dBc/Hz)


Maximum storage depth


Data format

I/Q two-way, 16bit


2.5Mz, 5MHz, 10MHz, 20MHz




Windows Xp, Windows7, Windows 8 and Windows 10


RF Input: N-type, female, 50Ω

USB: USB type C

Power interface: DC12V

Operating Environment

Operating temperature: 0°C to 50°C

Storage temperature: -20°C to 70°C





Technical specifications


This technical specifications include the influence of probability distribution, measurement uncertainty and environmental factors on the instrument performance. It guarantees the performance under the following conditions.

  • The instrument is ON and warmed up for 30 min
  • The instrument internal reference signal is applied

Testing temperature is 23±5 ºC, unless other specific condition applied.


Typical value


Additional description does not cover all performance information of the product guarantee. Unless otherwise specified, the typical value refers to the indicator or technical specification with which more than 80% of products comply under 23 ± 5 ºC. The measurement uncertainty is excluded. A6 should be within the calibration period.

Nominal value


The nominal value refers to the characteristic description or design range. It is not tested or covered by the product. A6 should be within the calibration period.




USB Vector Signal Analyzer

Accessories Model



Power adapter


Power cable (China standard)


Power cable (US standard)


USB drive



FM Demodulation License


TDD-LTE Demodulation License


FDD-LTE Demodulation License

BeiDou Navigation Satellite System is developed rapidly these years, however it still faces some problems now. One of the problem is signal interference, just like the similar like the GPS. One of GNSS station of BeiDou System found that their signal will be interfered at certain time everyday, so they invited Transcom Instruments to do Trouble Shooting for them. Trasncom Instruments set a simple test in the field, SpecMini was used as Spectrum Analyzer to do the interference location, A6 was used for recording IQ data, which will be used for further analytic. After sampling and inteference location, the interference source was found: One BTS belongs to one operator in China.