May 2020
Dear Colleague,

Spectrum analyzers are widely used to measure the frequency response, bandwidth, noise, and distortion characteristics of a wide range of RF circuits and products. They have come down considerably in price in recent years, and the specs keep improving too! SpecAns compare input and output signal spectra, displaying and analyzing any differences. Spectrum analyzers measure the magnitude of an input signal over a specified frequency range, displaying signal frequency, power, distortion, harmonics, etc. - parameters that are not easily available with time domain waveforms.

Standard spectrum analyzers sweep a narrow band receiver over the range of the instrument, but this means that intermittent or frequency-hopping signals will be missed or incorrectly reported. Real-time analyzers don't have that limitation since they use overlapping FFTs to view the whole spectrum range at the same time. Real-time techniques simplify spectrum monitoring to quickly capture, identify, and analyze complex RF environments containing frequency hopping signals, channel conflicts, and spectrum interference.

Below are some of our recent Signal and Spectrum Analyzer press releases.
Alan Lowne, CEO
Siglent SSA3075X-R 7.5GHz
Real-Time Spectrum Analyzer
Extends the Siglent SSA3000X series to add real-time spectrum analysis capabilities for intermittent and frequency-hopping signals used in commercial communications and 5G applications.

Siglent SSA3075X Plus 7.5GHz Spectrum Analyzer 
Extends the frequency range of the SSA3000X Plus series to meet the growing non real-time spectrum analysis needs for higher bandwidths in testing circuit designs for commercial communications bands and 5G applications.

Rigol RSA5000 Series
Real-time Spectrum Analyzers
The  RSA5000  series of Real-time Spectrum Analyzers offer real-time signal analysis by scanning a complete spectrum of 9kHz up to 6.5GHz with a maximum sample rate of 51.2MSa/s. They offer significant performance improvements over traditional swept spectrum analyzers with a 1ms full span sweep, an expanded vertical range to +30dBm, reduced phase noise to -108dBc/Hz,  1 Hz  RBW (resolution bandwidth), and a reduced noise floor (DANL) to -165dBm. They can also be used in a traditional swept scan mode. The optional Tracking Generator in the TG models provides a built-in signal source of 100kHz – 6.5GHz with an output range of -40dBm to 0dBm for plotting circuit or component frequency responses. The 10.1” capacitive touch screen display provides gesture support, mouse/keyboard support, in addition to the traditional knob and button control. Offering up to 40MHz Real-Time Bandwidth the RSA5065-TG calculates >146,000 FFT/sec, delivering down to a 7.45us 100% Probability of Intercept. The RSA5000 analyzers provide seven display modes (Normal, Density, Spectrogram, Power v. Time, Density & Spectrogram, PVT & Spectrum, PVT & Spectrogram) and includes a Frequency Mask Trigger. The Frequency Mask Trigger is especially useful for triggering measurements of sporadic or transient events. Rigol describes the high-speed real-time measurement technology of these units “Ultra-Real”.
Handheld Aaronia Bug Finder
RF Monitoring Device
This counter-espionage device checks for the latest technology hidden listening devices, covert cameras, GPS tracking devices, and unauthorized mobile phone usage in sensitive locations or vehicles.

ThinkRF R5x50 Real-Time 8/18/27GHz Spectrum Analyzers
Have the performance of traditional lab-grade spectrum analyzers at much lower cost, size, weight and power consumption. It monitors wireless signals in real-time for observing intermittent and frequency-hopped signals. The R5750 version also adds GPS capabilities.

Aaronia AARTOS
Drone/UAV Detection System
Customizable drone detection systems with 360deg coverage, wideband sensing to 20GHz, and AI software to avoid false alarms.

Microrad NHT 3DL Electromagnetic Field Safety Analyzer
Designed to measure electromagnetic fields in both time and frequency domains and in compliance with all the main international standards and regulations.

We also carry portable Spectrum Analyzers from AIM-TTi, Triarchy, and Aaronia.
While not as sensitive as dedicated spectrum analyzers, all Picoscopes, with their FFT capabilities, can be used for some spectrum analysis tasks.