# Tektronix RSA306 USB Real Time Spectrum Analyzer, 9 kHz - 6.2 GHz (Pre-Owned)

# Tektronix RSA306 USB Real Time Spectrum Analyzer, 9 kHz - 6.2 GHz (Pre-Owned)

## Key Features At A Glance

-   9 kHz to 6.2 GHz frequency range with 40 MHz real-time acquisition bandwidth
-   +20 dBm to -160 dBm measurement range
-   USB 3.0 device port with included Windows API and MATLAB instrument driver for programmatic and automated control
-   Includes Tektronix SignalVu-PC software with 27 spectrum and signal analysis measurements standard
-   Real-time DPX Spectrum/Spectrogram with 100% probability of intercept of 100 μs signals in up to 40 MHz span
-   MIL-PRF-28800F Class 2 environmental, shock and vibration specifications for harsh-condition use
-   Optional licensed packages for modulation analysis, WLAN, Bluetooth, pulse, mapping, and file playback
-   USB-powered, highly portable package weighing 0.59 kg (1.3 lbs)

The Tektronix RSA306 is a USB real time spectrum analyzer that pairs with a PC and Tektronix SignalVu-PC RF signal analysis software to deliver real-time spectrum analysis, streaming capture, and deep signal analysis for signals from 9 kHz to 6.2 GHz. It packages this capability in a low-cost, highly portable form factor intended for field, factory, or academic use.

Tektronix lists the RSA306 for academic and education work; maintenance, installation and repair in the factory or field; value-conscious design and manufacturing; and interference hunting. The 40 MHz real-time bandwidth combined with SignalVu-PC processing is positioned to capture interference so problems are seen the first time, every time.

ValueTronics stocks this equipment in our own 20,000 sq ft secure warehouse at 1675 Cambridge Drive in Elgin, Illinois. Every pre-owned unit is inspected and functionally verified in-house before it ships, while new units ship factory-sealed exactly as received from the manufacturer.

## Brand Heritage

Tektronix has operated under its own name since its founding in 1946. It was acquired by Danaher Corporation in 2007 and, following Danaher's 2016 spinoff of its test and measurement businesses, became part of Fortive Corporation.

## Accessories Supplied

-   174-6796-xx USB 3.0 locking cable (1 M)
-   063-4543-xx SignalVu-PC software, documentation, USB key
-   071-3323-xx Printed safety/installation manual (English)

## Product Core & Specifications

Specification

Value

Frequency

RF input frequency range

9 kHz to 6.2 GHz

Frequency reference accuracy, Initial (18 °C to 28 °C ambient, after 20 minute warm up)

±3 ppm + aging

Frequency reference accuracy, Initial (-10 °C to 55 °C ambient, after 20 minute warm up), typical

±25 ppm + aging

Aging (typical)

±3 ppm (1st year), ±1 ppm/year thereafter

External frequency reference input, Input frequency range

10 MHz ±10 Hz

External frequency reference input, Input level range

\-10 dBm to +10 dBm sinusoid

External frequency reference input, Impedance

50 Ω

Center frequency resolution, Block IQ samples

1 Hz

Center frequency resolution, Streamed ADC samples

500 kHz

Amplitude

RF input impedance

50 Ω

RF input VSWR (typical)

≤ 1.8:1 (10 MHz to 6200 MHz, reference level ≥ +10 dBm)

Maximum RF input level without damage, DC voltage

±40 VDC

Maximum RF input level without damage, Reference level ≥ –10 dBm

+23 dBm (continuous or peak)

Maximum RF input level without damage, Reference level < –10 dBm

+15 dBm (continuous or peak)

Maximum RF input operating level, Center frequency < 22 MHz (low-frequency path)

+15 dBm

Maximum RF input operating level, Center frequency ≥22 MHz (RF path)

+20 dBm

Amplitude accuracy, 9 kHz - < 3 GHz, Warranted (18 °C to 28 °C)

±2.0 dB

Amplitude accuracy, 9 kHz - < 3 GHz, Typical (95% confidence, 18 °C to 28 °C)

±1.25 dB

Amplitude accuracy, 9 kHz - < 3 GHz, Typical (-10 °C to 55 °C)

±3.0 dB

Amplitude accuracy, ≥ 3 GHz - 6.2 GHz, Warranted (18 °C to 28 °C)

±2.75 dB

Amplitude accuracy, ≥ 3 GHz - 6.2 GHz, Typical (95% confidence, 18 °C to 28 °C)

±2.0 dB

Amplitude accuracy, ≥ 3 GHz - 6.2 GHz, Typical (-10 °C to 55 °C)

±3.0 dB

Intermediate frequency and acquisition system

IF bandwidth

40 MHz

ADC sample rate and bit width

112 Ms/s, 14 bits

Real-time IF acquisition data (uncorrected)

112 Ms/s, 16-bit integer real samples; 40 MHz BW, 28 ±0.25 MHz Digital IF, uncorrected

Block streaming data

average rate of 224 MB/s

Block baseband acquisition data (corrected), Maximum acquisition time

1 second

Block baseband acquisition data (corrected), Bandwidths

≤ 40 /( 2N) MHz, 0 Hz Digital IF, N ≥ 0

Block baseband acquisition data (corrected), Sample rates

≤ 56 / (2N) Msps, 32-bit float complex samples, N ≥ 0

Channel amplitude flatness

±1.0 dB, 18 °C to 28 °C; ±2.0 dB, -10 °C to 55 °C, typical; ±3.0 dB, 22 MHz - 24 MHz, -10 °C to 55 °C, typical

Trigger

Trigger/sync input, Voltage range

TTL, 0.0 V – 5.0 V

Trigger level, positive-going threshold voltage

1.6 V minimum; 2.1 V maximum

Trigger level, negative-going threshold voltage

1.0 V minimum; 1.35 V maximum

Trigger/sync input, Impedance

10 kΩ

IF power trigger, Threshold range

0 dB to -50 dB from reference level, for trigger levels > 30 dB above the noise floor

IF power trigger, Type

Rising or falling edge

Trigger re-arm time

≤100 μs

Noise and distortion

DANL, < 22 MHz (LF path), 100 kHz - 42 MHz

\-130 dBm/Hz (-133 typical)

DANL, ≥ 22 MHz (RF path), 2 MHz - 5 MHz

\-145 dBm/Hz (-148 typical)

DANL, ≥ 22 MHz (RF path), > 5 MHz - 1.0 GHz

\-160 dBm/Hz (-163 typical)

DANL, ≥ 22 MHz (RF path), > 1.0 GHz - 2.0 GHz

\-158 dBm/Hz (-161 typical)

DANL, ≥ 22 MHz (RF path), > 2.0 GHz - 4.0 GHz

\-155 dBm/Hz (-158 typical)

DANL, ≥ 22 MHz (RF path), > 4.0 GHz - 6.2 GHz

\-150 dBm/Hz (-153 typical)

Phase noise (1 GHz CW at 0 dBm), 1 kHz offset

\-85 dBc/Hz

Phase noise, 10 kHz offset

\-84 dBc/Hz

Phase noise, 100 kHz offset

\-90 dBc/Hz

Phase noise, 1 MHz offset

\-118 dBc/Hz

Residual spurious response

< -78 dBm (Reference level ≤ -50 dBm, RF input terminated with 50 Ω)

Input related spurious response (SFDR)

≤ -50 dBc, 18 °C to 28 °C, with auto settings on and signals 10 dB below reference level of -30 dBm, span ≤ 40 MHz, input frequencies ≤ 8 GHz

Residual FM

< 10 HzP-P (95% confidence)

3RD order IM distortion, Center frequency 2130 MHz

≤ -60 dBc at reference level -15 dBm, 18 °C to 28 °C

3RD order intercept (TOI), Center frequency 2130 MHz

≥ +10 dBm at reference level -15 dBm, 18 °C to 28 °C

2ND harmonic distortion, typical

< -55 dBc, 10 MHz to 300 MHz, reference level = 0 dBm; < -60 dBc, 300 MHz to 3.1 GHz, reference level = 0 dBm

2ND harmonic intercept (SHI)

+55 dBm, 10 MHz to 300 MHz, reference level = 0 dBm; +60 dBm, 300 MHz to 3.1 GHz, reference level = 0 dBm

Local oscillator feedthrough to input connector

< -75 dBm at reference level = -30 dBm

Audio Output

Audio output Types

AM, FM

IF bandwidth range

Five selections, 8 kHz – 200 kHz

Audio output frequency range

50 Hz – 10 kHz

PC audio output

16 bits at 32 ks/s

Audio file output format

.wav format, 16 bit, 32 ks/s

SignalVu-PC base performance summary

Maximum span

40 MHz real-time; 9 kHz - 6.2 GHz swept

Maximum acquisition time

1.0 s

Minimum IQ resolution

17.9 ns (acquisition BW = 40 MHz)

Signal Strength display

Signal strength indicator

Located at right side of display

Measurement bandwidth

Up to 40 MHz, dependent on span and RBW setting

Tone type

Variable frequency based on received signal strength

Spectrum display

Traces

Three traces + 1 math trace + 1 trace from spectrogram for spectrum display

Trace functions

Normal, Average (VRMS), Max Hold, Min Hold, Average of Logs

Detector

Average (VRMS), Average, CISPR peak, +Peak, -Peak, Sample

Spectrum trace length

801, 2401, 4001, 8001, 10401, 16001, 32001, and 64001 points

RBW range

10 Hz to 10 MHz

DPX spectrum display

Spectrum processing rate (RBW = auto, trace length 801)

10,000/s

DPX bitmap resolution

201x801

Marker information

Amplitude, frequency, signal density

Minimum signal duration for 100% probability of detection

100 μs (Span: 40 MHz, RBW = Auto, Max-hold on)

Span range (continuous processing)

1 kHz to 40 MHz

Span range (swept)

Up to maximum frequency range of instrument

Dwell time per step

50 ms to 100 s

> **Important:** For full performance of the real-time features, the RSA306 requires a USB 3.0 connection and an Intel Core i7 4th-generation processor; processors of lower performance can be used with reduced real-time performance.

> **Important:** Storage of streaming data requires that the PC be equipped with a drive capable of streaming storage rates of 300 MB/sec.

> **Important:** Recording of signals requires storage with write rates of 300 MB/sec; playback of recorded files at live rates requires storage with read rates of 300 MB/sec.

> **Important:** Antennas, RF cables, adapters, and pre-filters needed to connect the instrument to a signal source or device under test are not included with the base unit; select the appropriate items from the datasheet's Recommended Accessories list and order them separately.

> Recommended pairing: the DF-A0047 directional antenna (20–8500 MHz, with optional 9 kHz–20 MHz extension via DF-A0047-01) is listed as part of a complete interference hunting solution for the RSA306.

## About this Pre-Owned unit

This pre-owned unit is inspected and functionally verified in-house before it ships and is backed by our pre-owned warranty. To confirm its exact condition, firmware revision, installed options, or included accessories for your application before ordering, contact our Test Architects.

-   Warranty included
-   Functional verification included
-   Standard Calibration Upgrade Options: No Calibration Required, NIST Traceable, Z540.1 or ISO 17025 with Data, Z540.3 Guardbanding with Data.
-   Note that unnecessary accessories may not be included (contact Test Architect to confirm).

ValueTronics supplies both new and used test and measurement equipment. New units ship factory-sealed, exactly as received from the manufacturer; every used unit is inspected and functionally verified in-house at our 20,000 sq ft secure facility in Elgin, Illinois before it ships. Our Test Architects can help you select the condition, calibration, and configuration that fit your application.

**Please review the Manufacturer's Data Sheet to verify published specifications. Feedback on this webpage is always welcome — please reach out to your Test Architect at any time for questions or concerns. Thank you, we truly appreciate you being our customer.**

## Details

- **Price:** 3490.0 USD - 4610.0 USD
- **Vendor:** Tektronix
- **Type:** Spec An
- **Tags:** Analyzers, Inc., Manufacturers, Model 306, Pre-Owned, product_manual_group_2, Product_used, RSA306, Spectrum, Spectrum Analyzer, Tektronix

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| None | 3490.00 USD | In stock |
| NIST Traceable | 4050.00 USD | In stock |
| NIST Traceable with Full Data | 4330.00 USD | In stock |
| ISO IEC 17025 Accredited | 4610.00 USD | In stock |

## Images

- Tektronix RSA306 USB Real Time Spectrum Analyzer, 9 kHz - 6.2 GHz (Pre-Owned)

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> Source: [ValueTronics](https://valuetronics.com/products/rsa306-tektronix-spectrum-analyzer-used)
> Updated: 2026-06-02