Best Spectrum Analyzers With Tracking Generators for Precise RF Testing
Finding the best spectrum analyzer with a tracking generator is crucial for professionals and hobbyists involved in RF signal analysis and testing. This article reviews top-rated spectrum analyzers that combine advanced features like wide frequency ranges, low noise levels, and accurate tracking generators to meet diverse measurement needs. Below is a summary table comparing key models to help you quickly compare their capabilities.
| Model | Frequency Range | Tracking Generator | Noise Level | Additional Features |
|---|---|---|---|---|
| Rigol DSA815-TG | 9 kHz – 1.5 GHz | Included (1.5 GHz TG) | Standard | Pre-Amplifier, Top Seller 2012-2014 |
| Siglent SSA3021X | 9 kHz – 2.1 GHz | Included | -161 dBm/Hz DANL | All-Digital IF Technology |
| Siglent SSA3021X Plus | 9 kHz – 2.1 GHz | Included | -161 dBm/Hz DANL | Pre-Amplifier |
| RF Explorer PRO | 15 MHz – 3.3 GHz | Included | Advanced Interference Analysis | Touchscreen, GPS, Power Meter |
| SIGLENT SVA1015X | 9 kHz – 1.5 GHz | Included | -156 dBm/Hz DANL | Vector Network Analysis |
Rigol DSA815-TG Spectrum Analyzer with Tracking Generator
The Rigol DSA815-TG is a historically popular spectrum analyzer covering the frequency range of 9 kHz to 1.5 GHz. It includes an integrated tracking generator supporting signal generation up to 1.5 GHz, making it useful for a variety of RF tests and filter characterizations. This model features a built-in pre-amplifier that enhances signal detection sensitivity.
Known as a top seller from 2012 to 2014, its balanced performance and affordability make it a solid choice for engineers and technicians requiring reliable spectrum analysis with tracking capabilities. The device’s straightforward interface and stable hardware help maintain consistent measurements in everyday use.
Siglent Technologies SSA3021X Spectrum Analyzer with Tracking Generator
The Siglent SSA3021X introduces advanced all-digital intermediate frequency (IF) technology to deliver high performance across a wide frequency range from 9 kHz to 2.1 GHz. This spectrum analyzer provides a low displayed average noise level (DANL) of -161 dBm/Hz, enabling precise detection of weak signals.
Equipped with a free tracking generator, it supports comprehensive signal analysis including amplifier gain measurements and filter testing. The digital IF design reduces unwanted spurious signals and improves measurement stability, making it a dependable tool for RF troubleshooting and research.
Siglent SSA3021X Plus with Tracking Generator and Preamplifier
The upgraded Siglent SSA3021X Plus builds on the SSA3021X model by adding a preamplifier alongside its 2.1 GHz frequency coverage and tracking generator. The preamp enhances sensitivity for low-level signal detection, and the device maintains a -161 dBm/Hz noise floor for accurate analysis.
This spectrum analyzer is ideal for users needing enhanced dynamic range and signal clarity for RF component testing, antenna measurements, and EMI investigations. Its digital architecture and integrated tracking generator simplify complex measurement setups.
RF Explorer PRO Spectrum Analyzer with Tracking Generator and Power Meter
The RF Explorer PRO extends analysis capabilities up to 3.3 GHz, combining spectrum analysis, a signal tracking generator, and power meter functions in one portable device. It features a high-resolution touchscreen and advanced tools like 2D/3D waterfall displays, zero span, and data recording.
Unique to this model is its integrated GPS for creating RF heatmaps and real-time frequency coordination, useful for wireless microphone setups and interference mapping. The device emphasizes versatility and precision, suitable for both field work and lab environments.
SIGLENT SVA1015X Spectrum Vector Analyzer with Tracking Generator
The SIGLENT SVA1015X combines spectrum analysis from 9 kHz to 1.5 GHz with vector network analysis capabilities, broadening its application to device characterization and complex RF measurements. It includes a tracking generator, enabling filter and amplifier gain tests.
With a displayed average noise level of -156 dBm/Hz, it provides accurate signal detection and analysis. This instrument supports EMI pre-compliance and provides both amplitude and phase information for a detailed spectrum overview.
Buying Guide for Spectrum Analyzers with Tracking Generators
Frequency Range
Select a spectrum analyzer that meets or exceeds your required frequency range. For general RF work, 9 kHz to around 1.5 GHz is common, but higher-end models offer coverage up to 3 GHz or beyond, which is essential for advanced wireless and communications testing.
Tracking Generator Capability
The tracking generator should cover the signal frequencies you need to test. It allows you to generate a test signal for analyzing filters and amplifiers by sweeping the spectrum. Confirm the generator’s frequency range and accuracy align with your requirements.
Sensitivity and Noise Floor
A low displayed average noise level (DANL) is critical for detecting weak signals and ensuring measurement accuracy. Look for units offering DANL values around -160 dBm/Hz or lower for enhanced performance in noisy environments.
Additional Features
- Pre-amplifiers: Improves sensitivity for low-level signals.
- Vector Analysis: Adds phase measurement capabilities for complex troubleshooting.
- Interface and Usability: Touchscreens and digital IF technology enhance ease of use and measurement stability.
- Portability: Some devices are handheld or include integrated power meters and GPS, beneficial for fieldwork.
- Software and Data Export: Compatibility with PC software aids in reporting and data analysis.
Accuracy and Resolution Bandwidth (RBW)
A finer RBW (as low as 1 Hz) helps distinguish closely spaced signals, which is essential for detailed signal analysis and identifying modulation types.
Budget Considerations
Match your budget with features and performance. Entry-level models provide fundamental analysis while higher-end analyzers offer advanced functions and better noise performance. Consider long-term support and updates from the manufacturer.