S3986 Series Noise Figure Analyzer

S3986 series noise figure analyzer includes five models with the frequency from 10MHz to 50GHz. It can measure the noise figure and gain of amplifiers, up converters and down converters, as well as to support automatic measurement of noise figure of multi-stage converters. Guide interfaces are intuitive for setting measurement modes. S3986 series can be widely used in R&D, manufacturing, testing and technical assurance tests of electronic equipment for radar, communication, navigation etc..

Key Features

Wide frequency coverage from 10 MHz to 50 GHz, and can be extended to 110GHz

High-sensitivity reception and high-precision measurement performance

Amplifier, up converter and down converter measurement mode

Single sideband and double sideband measurement function

Comprehensive loss compensation function

Passed/ failed test notification limit line function

Optional wide range of standard and smart noise sources

10.1 inch big screen dual channel HD display, various external interfaces like GPIB, LAN, USB and VGA

Frequency Range

S3986A: 10 MHz to 4 GHz,

S3986D: 10 MHz to 18 GHz,

S3986E: 10 MHz to 26.5 GHz,

S3986F: 10 MHz to 40 GHz,

S3986H: 10 MHz to 50 GHz

Frequency Reference Accuracy

< ±0.2ppm (23°C±3°C)

Frequency Tuning Accuracy

•  10MHz – 4GHz: < ±(Reference frequency error +100kHz)

•  4GHz – 18/26.5/40/50GHz: < ±(Reference frequency error +400kHz)

Noise Figure Measurement Range

0 – 30dB (ENR: 12dB – 17dB)

Noise Figure Measurement Uncertainty

< ±0.1dB

Gain Measurement Range

-20dB to +40dB

Gain Measurement Uncertainty

< ±0.17dB

Input VSWR

•  10MHz ≤ f ≤ 4GHz: < 1.90:1

•  4GHz < f ≤ 18GHz: < 2.10:1

•  18GHz < f ≤ 50GHz: < 2.40:1

Main Unit’s Self Noise Figure

•  10MHz ≤ f ≤ 4GHz: < 8.0dB

•  4GHz < f ≤ 18GHz: < 7.5dB

•  18GHz < f ≤ 26.5GHz: < 8.0dB

•  26.5GHz < f ≤ 40GHz: < 10.0dB

•  40GHz < f ≤ 50GHz: < 12.0dB

Jitter (Uneven)

< 0.17dB (Y Factor typical value 5dB)

Noise Source Drive Voltage

•  Noise source off:  < 1.0 V

•  Noise source on: +28.0 ± 0.10 V

Altitude Range

4, 600 meters

RF Input Connector

•  S3986A/D/E: 3.5mm (male), 50Ω impedance

•  S3986F/H: 2.4mm (male), 50Ω impedance

Noise Source Drive Output

•  Standard noise source: BNC (female)

•  Smart noise source: multi-core connector

Power Supply

AC 100V – 240V, 50/60Hz

Power Consumption

•  Max. power consumption: 250W

•  Max. standby: 20W


10.1 inch 1280×800 HD screen, XGA

Data Storage

160 G solid state disk, support USB 2.0 standard storage units


•  426 (W) × 177 (H) × 460 (D) mm (excluding handle, bottom, pad and side strap)

•  510 (W) × 190 (H) × 534 (D) mm (including handle, bottom, pad and side strap)


< 25kg

Main Machine

Module No. Item Description
S3986A Noise Figure Analyzer 10 MHz to 4 GHz
S3986D Noise Figure Analyzer 10 MHz to 18 GHz
S3986E Noise Figure Analyzer 10 MHz to 26.5 GHz
S3986F Noise Figure Analyzer 10 MHz to 40 GHz
S3986H Noise Figure Analyzer 10 MHz to 50 GHz


Module No. Item Description
S3986-H01 S16603/16604 series Noise Source As standard noise power for noise figure measurement.
S3986-H02 Coaxial Adapter For connection between noise source and adapter interface of noise figure analyzer.
S3986-H03 Multi-core Cable For connection between S16604 smart noise source drive interface of noise figure analyzer and noise source.
S3986-H04 BNC(m)-BNC(m) Cable For connection between S16603 standard noise source drive interface of noise figure analyzer and noise source.
S3986-H05 Alloy Carrying Case High strength, lightweight alloy shipping case with handle and wheels for easier handling.