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RSA306B USB Spectrum Analyzer
The RSA306B is a compact USB spectrum and signal analyzer designed for professional performance. It delivers advanced features typically found in instruments twice its size and cost, making it ideal for both lab and field use.
Base Price
US $7,220
+
Maximum Frequency Range
9 kHz to 6.2 GHz
Capture Bandwidth
40 MHz
Dynamic Range
-160 dBm to +20 dBm
RSA306B USB Spectrum Analyzer
See RF events that are practically invisible

Real-time architecture of the RSA Series enables detection of the most difficult and hard-to-find problems. With advanced DPX® technology, you can see RF characteristics that are practically invisible to a conventional spectrum analyzer.
Newly added real-time triggers such as Frequency Mask Trigger (FMT), Time-Qualified Trigger, and DPX Density Trigger enhance your ability to capture elusive, fast transients and spectral anomalies.
Advanced vector signal analysis at your fingertips.

The RSA Series is powered by SignalVu-PC Vector Analysis software which provides:
- Advanced measurement and debugging capabilities including advanced triggering that enables the capture of selective pulses from pulsed transmitters, as well as fast and elusive or unexpected transients during device troubleshooting.
- Ability to control more than one RSA connected to the same PC to measure simultaneous events at different frequencies, such as harmonics and out of band emissions.
- A wide range of add-on packages available covering common wireless standards, spectrum management, pulse measurements and more.
Video: How to set up RSA306B with SignalVu-PC
Watch the advanced triggers demo
Small on price. Big on performance.

The RSA Series provides performance to match or beat conventional spectrum analyzers:
- 6 GHz frequency range
- Modular analysis software
- Fast, high resolution sweeps for EMC pre-compliance testing
- Wide capture bandwidth at 40 MHz
- 60 dBc SFDR
- Stream IQ or IF data direct to disk for record and playback
Unequaled size. Unlimited flexibility. Unparalleled toughness.

At just 1.6 lbs., the RSA306B is conveniently sized for easy portability from your bench, the lab or even the field. It's powered by your laptop or tablet giving you the ultimate flexibility and convenience. You choose the display and connectivity that you prefer. Additionally, the RSA306B is tested to military standards and is field tough.
Watch the Extreme TestMeet the Whole Family

The Tektronix family of Spectrum Analyzers are all made in the USA and have a 3 year warranty so you can count on our quality day in and day out. Choose the real-time spectrum analyzer that best suits your needs:
- RSA500 Series: With a built-in tracking generator for antenna and cable test, and a GPS receiver to
geo-locate and map signals, the RSA500 makes field test a lot easier.
Learn More>> - RSA600 Series: With better dynamic range and phase noise for modulation analysis of wireless standards, and
an optional tracking generator to characterize RF components, the RSA600 offers powerful tools for your
bench.
Learn More>>
Model | Frequency Range | Real-Time Bandwidth | Minimum Event Duration for 100% POI | SFDR (typical) | RF Connectors | List Price | Configure And Quote |
---|---|---|---|---|---|---|---|
RSA306B | 9 kHz to 6.2 GHz | 40 MHz | 15 μs | 60 dBc | Type-N | US $7,220 | Configure & Quote |
Spectrum Monitoring and Interference hunting

The migration to mobile communications is creating unprecedented pressure for more spectrum capacity in a complex and crowded signal environment. Tek’s Real-Time Spectrum Analyzers help you discover and examine sources of interference quickly so you can locate and identify unwanted activity. You can ensure your signal integrity and adherence to compliance standards using the RSA306B, RSA500, or RSA600 for real-time spectrum insights.
Interference Hunting Application Note
Detecting Drones Using a Real-Time Spectrum Analyzer
Highlights
- The RSA306B spectrum analyzer's proprietary DPX technology enables precise, real-time measurements packaged in a portable, rugged form factor and easy-to-use software interface.
- The RSA306B spectrum analyzer covers up to 6.2 GHz, with 40 MHz bandwidth capture
Reduce manufacturing costs and test time with better test flexibility

The USB RSA’s are a great choice for manufacturers looking for greater throughput and product quality, all while controlling testing costs. The RSA 306B, 500, and 600 units offer support for major Internet of Things (IoT) standards in SignalVu-PC software, come with a complete offering of drivers and code examples, and include testing support for IoT technologies such as WiFi and the new Bluetooth 5.0.
Maximize your student’s learning

With our full featured and affordable Real-time Spectrum Analyzers, your students can capture results of experiments, perform analysis, and generate lab reports on their laptops, saving time and optimizing learning opportunities. It’s compact and portable size makes it easy to conduct experiments away from the lab in real world environments.
EMI/EMC pre-compliance Testing

Save cost and precious time by performing pre-compliance testing in your lab with our Real-Time Spectrum Analyzers. You can use peak detection with a free version of SignalVu-PC. You also get more accurate results with quasi-peak and average detection by purchasing the additional option EMCVu. Learn more about EMI/EMC pre-compliance testing at our application page.
Low Cost EMI Pre-compliance Testing using a Spectrum Analyzer
Model | Frequency Range | Real-Time Bandwidth | Minimum Event Duration for 100% POI | SFDR (typical) | RF Connectors | List Price | Configure And Quote |
---|---|---|---|---|---|---|---|
RSA306B | 9 kHz to 6.2 GHz | 40 MHz | 15 μs | 60 dBc | Type-N | US $7,220 | Configure & Quote |
Tektronix RSA306B |
Tektronix RSA507A |
Tektronix RSA607A |
Keysight N9322C (BSA) |
Keysight N9000-507 (CXA) |
|
---|---|---|---|---|---|
Maximum Frequency Range | 9 kHz - 6.2 GHz | 9 kHz to 7.5 GHz | 9 kHz to 7.5 GHz | 9 kHz - 7 GHz | 9 kHz - 7.5 GHz |
Capture Bandwidth | 40 MHz | 40 MHz | 40 MHz | 1 MHz | Standard: 10 MHz Optional: 25 MHz |
Dynamic Range (DANL to Max Imput) |
-160 dBm to +23 dBm | -161 dBm to +33 dBm | -161 dBm to +33 dBm | -152 dBm to +20 dBm | -148 dBm to + 15 dBm (Optional Pre-amp On) |
Phase Noise (1 GHz CF, 10 kHz offset) | -84 dBc/Hz | -94 dBc/Hz | -94 dBc/Hz | -90 dBc/Hz (typ) | -102 dBc/Hz |
Real Time Capabilities | Yes | Yes | Yes | No | No |
Base Measurements | 17 | 17 | 17 | 6 | 10 |
Country of Origin | USA | USA | USA | Malaysia | Malaysia |
Warranty | 3-year warranty | 3-year warranty | 3-year warranty | 3-year warranty | 3-year warranty |
Weight | 1.6 lbs | 7.0 lbs | 6.35 lbs | 17.4 lbs | 34 lbs |
Size (h, w, d) | 1.2" x 7.5" x 5" | 2.65'" x 11.78" x 10.68" | 2.95" x 14.12" x 8.75" | 5.2" x 15.7" x 12.6" | 7" x 16.8" x 14.5" |
SignalVu-PC software brings benchtop and field features to the RSA306B

RSA306B operates with SignalVu-PC, a powerful program that is the basis of Tektronix performance signal analyzers. The software controls the spectrum analyzer acquisition and updates measurement displays continuously.
The base version ships free with the product; add options to configure the software for your application.
Download trial Go to the SignalVu-PC Software page
Get software programming examples on GitHub
Highlights
- Free base version has 17 signal analysis and real-time spectrum analysis measurements
- Paid add-on options for more than 15 advanced measurements including WLAN testing, P25 compliance testing, pulse analysis, modulation analysis and more
FEATURED ACCESSORY
Smart antenna for interference hunting

When combined with a Tektronix USB spectrum analyzer, the Alaris DF-A0047 direction finding antenna, offered by Tektronix, makes interference hunting easy. Lines of bearing are automatically transmitted from the antenna to SignalVu-PC Map software, enabling fast triangulation on interference sources.
Highlights
- Multiple antennas and a user-selectable preamplifier cover a broad range of interference frequencies and levels
- Integrated compass transmits angle information to SignalVu-PC for automatic creation of lines of bearing on the map
- Powered by USB
Tektronix offers a range of calibration and protection plans for purchase with your equipment to protect and maintain its performance over the lifetime of the instrument. Benefits include:
- Service conducted by factory trained technicians using many of the same test stands and standards designed in manufacturing.
- Predictable costs with locked-in, up-front pricing.
- A host of accident protection, loaner program, and other plan features.
- A breadth of calibration service levels and options.
Invest now to avoid unplanned downtime and expense. Talk to your sales rep about adding a service plan to your instrument purchase.

Protect Your Investment, Protect Your Uptime
Configure & Quote
Service Plan Feature |
Tek Care Extended Warranty (Opt. R3, R5) |
Total Protection (Opt. T3, T5) |
---|---|---|
Extension of factory warranty | ||
Protection from manufacturer defects | ||
Free factory certified calibration with repair | ||
Free in-country shipping | ||
Priority on-bench service | ||
Coverage of user-caused EOS and ESD damage | ||
Coverage from accidental damage | ||
Coverage from normal wear and tear |
Maintain Accuracy, Get Updates, Pass Audits
Configure & Quote
Calibration Features: |
Z540 Calibration1 |
ISO 17025 Compliant3 |
ISO 17025 Accredited |
---|---|---|---|
Certificate of calibration and calibration label designed to meet audit requirements | |||
Firmware updates, if applicable, along with safety and reliability updates ² | |||
OEM procedures for measurements ² | |||
Test data | Optional | ||
Calibration record retention | |||
Traceability | |||
Uncertainty analysis | |||
Independent verification by a ISO/IEC accredited organization (with logo on certificate) |
Product/Option |
Description |
---|---|
Tektronix Opt. C3 | Calibration service 3 years. C3 provides for 2 calibration events during 3 years after shipment. Includes traceable calibration or functional verification where applicable, for recommended calibrations. Coverage includes the initial calibration plus 2-years calibration coverage. |
Tektronix Opt. C5 | Calibration service 5 years. C5 provides for 4 calibration events during 5 years after shipment. Includes traceable calibration or functional verification where applicable, for recommended calibrations. Coverage includes the initial calibration plus 4-years calibration coverage. |
1 May be ISO 9001 in specific locations.
2 Standard with factory verified calibration service
3 Standard calibration level for newly manufactured TICP probes.
Some limits apply, see program terms for details.
Need to Calibrate More Instruments?
Tektronix is a leading accredited calibration services provider for all brands of electronic test and measurement equipment, servicing more than 140,000 models from 9,000 manufacturers. With 100+ labs worldwide, Tektronix serves as your single global partner delivering tailored calibration programs with OEM quality at a market price. Onsite, local pickup and delivery, and other options available.
