Advantest R3681 Signal Analyzer

Advantest  R3681 Signal Analyzer

High Performance Spectrum and Broadband modulation analysis in one versatile instrument 

● Wide Dynamic Range Average Display Noise Level: –158 dBm (typical @ 1 GHz) 1 dB Compression Point: +10 dBm (typical, 200 MHz to 3.5 GHz) Third-Order Intercept Point (TOI): +26 dBm (typical, 2 to 3.5 GHz) 

● Standard broadband 25 MHz modulation analysis function 

● OFDM Modulation Analysis Option (OPT.68) for W-LAN IEEE802.11a, HiperLAN/2, and HiSWANa

ADVANTEST’s Wizard Module Test (WMT) system platform

Adapting to new radio communication standards generally requires new investments in testand-measurement instruments. To lower these new capital investments for next-generation radio communication systems, ADVANTEST introduces the Wizard Module Test (WMT) system platform. The R3681 allows you to add and replace extension modules to meet your exact test-andmeasurement requirements. This added flexibility allows you to develop testing system platforms that meet your specific measurement needs. This also enables you to expand and reuse your testing platforms as your measurement needs evolve over time.

Adopting a Large TFT Display for Higher Work Efficiency

Large 12-inch TFT display 

● Touch screen for quick operation 

● Large screen for increased work efficiency 

● Comparative analysis capabilities on multi-screens 

● Indicator function for lowspeed sweep position check, and more

Measurement toolbar 

Displays the icon buttons for useful measurement functions

Power switch 

Turns the analyzer on and off. Setting this switch to ON shuts the OS down and turns off the analyzer.

High-Performance Spectrum Analysis

By making full use of the latest RF techniques, the R3681 enables measurements over a wide dynamic range:

● Average Display Noise Level: –158 dBm (typ. 1 GHz) 

● Built-in Preamplifier On: –168 dBm (RBW = 1 Hz, 1 GHz) 

● 1 dB Compression Point: +10 dBm (typ. 200 MHz to 3.5 GHz) 

● Third-Order Intercept Point (TOI): +26 dBm (typ. 2 to 3.5 GHz) 

● Signal Purity (at 800 MHz) 10 kHz Offset: –120 dBc/Hz or more 1 MHz Offset: –140 dBc/Hz or more 10 MHz Offset: –155 dBc/Hz or more 

● Built-in attenuator with 5 dB steps (standard) Attenuator with 1 dB steps (OPT.14) 

● Resolution Bandwidth (RBW): 1 Hz to 10 MHz (Sequences 1, 2, 3, and 5) 

● Dynamic Range of display: 10 div. fixed 0.1 to 1 dB/div. (0.1 dB steps) 1 to 20 dB/div. (1 dB steps) 

● Steep shape factor Approximately 3 times the conventional value. This narrows the carrier near-field measurement resolution.

Highly accurate level measurement

The R3681 provides highly accurate measurement by adopting high-performance digital IF technology.

● General Level Accuracy: >±0.73 dB (50 MHz to 2.5 GHz, 10 dB ATT, 100 kHz RBW) 

● Level Display Linearity: Inaccuracy reduced 

● Level Display Stability: Instability significantly improved 

● Self-calibration: Calibration time shortened

Easy Operation with Measurement Tools

With its large touch screen, the R3681 is easy to operate and achieves high measurement efficiency

●Waveform Enlargement Function (Area enlargement by specifying a range) 

●Waveform Scroll Function 

● Peak Markers over specified range, and a peak marker list 

● One-Touch Selection Function*1) for specifying the point of analysis within the acquired waveform data 

● Switching Function for waveform data display and analytical result display*1) 

● Active window switching function to simultaneously display four-screens *1

Abundance of Analysis Functions

The R3681 comes standard with the refined measurement functions of ADVANTEST’s conventional spectrum analyzers:

●Marker Function (multi-marker, delta marker, peak search, and more) 

● Variety of Detection Functions necessary for communications standards measurements Normal, positive peak, negative peak, sample, RMS, video average, and mean voltage 

● One-Touch Measurement Functions frequently used for other RF measurements