tinySA Spectrum Analyzer review

nerfd

4 years ago

Tinysa 100kHz-350MHz 2.8 Inch Handheld Two Inputs Tiny Spectrum Analyzer Touch Screen Spectrum Analyzer 100 KHz-350MHz Input Frequency

Features:

Display resolution 320 * 240 pixels
2.8 inches diagonal screen
16 bits per RGB pixel
Resistive touch control
Slow switch control
USB serial port control
Optional TTL USART port on the internal PCB (SW not yet implemented)
Linear power supply to avoid switching noise
TinySA’s input/output specifications are divided into 4 modes

Specifications:

Low input mode specification:

*Input frequency response from 100kHz to 350MHz

*When the input impedance is set to 10dB or higher, it is 50 ohms.

*Optional manual and automatic input attenuation, the range is 0dB to 31dB, the step size is 1 dB

*Absolute maximum input level, no attenuation + 10dBm

*Absolute maximum power, 30dB attenuation + 20dBm in a short time

*With a third-order modulation product (IIP3) input intercept point 0dB attenuation + 15dBm

* 1dB compression point, + 2dBm attenuation 0dB

*The resolution of the power detector is 0.5dB, linearity and frequency are +/- 1dB

*The absolute power level accuracy after power level calibration is +/- 1dB

*The lowest resolvable signal with a resolution bandwidth of -102dBm and a resolution of 30kHz

*The frequency accuracy is equal to the selected resolution bandwidth

*Phase noise is -90dB/Hz at 100kHz offset and -115dB/Hz at 1MHz offset

*Use 30kHz resolution bandwidth to 70dB

*The manually selected resolution filter is 3, 10, 30, 100, 300, 600kHz. One of 57 resolution filters is automatically selected.

*The screen resolution is 145 or 290 measuring points.

*Using the maximum resolution filter, the scanning speed exceeds 1000 points per second.

*Automatically optimize the actual scan point to cover the entire scan range, regardless of the selected resolution bandwidth

*The spurious suppression option is used to determine whether certain signals are generated internally or actually exist in the input signal.
High input mode specification:*The input frequency range is 240MHz to 960MHz*If there is no input band filter to filter out strong signals outside the range of 240MHz to 960MHz, it may cause distortion. In-band signal*Absolute maximum input level, no attenuation + 10dBm*The input intercept point of the third-order modulation product (IIP3) -5dBm* 1dB compression point at -6dBm, attenuation is 0dB*The resolution of the power detector is 0.5dB, linearity and frequency +/-1dB*The absolute power level accuracy after power level calibration is +/- 1dB*The lowest visible signal with a resolution bandwidth of -115dBm 30kHz*The frequency accuracy is equal to the selected resolution bandwidth*Use 30kHz resolution bandwidth 50dB spurious-free dynamic range*Optional 3, 10, 30, 100, 300 and 600kHz* Optional 25dB to 40dB frequency-related input attenuator. The power level error of the activated attenuator is increased to +/- 15dB*The screen resolution is 145 or 290 measuring points.*Using the maximum resolution filter, the scanning speed exceeds 1000 points per second.*Automatically optimize the actual scan point to cover the entire scan range, regardless of the selected resolution bandwidth

Low output mode specification:

*Sine output, harmonics are lower than the fundamental -40dB

*The output frequency range is 100kHz to 350MHz

*The output level can be selected between -76dBm in 1dB steps and -6dBm

* Optional AM, narrow FM and wide FM modulation or sweep slowly in the selectable frequency range

High output mode specifications:

*Square wave output

*The output frequency range is 240MHz to 960MHz

*The output level can be changed from -38dBm to +13dBm

*Optional narrow FM and wide FM modulation or slow sweep in the selectable frequency range

Reference generator specifications:

*Optional square wave output, basically connected to high input/output at -25dBm