S1131 RF Signal Generator

S1131 RF signal generator provides engineers with a “Smaller, lighter and easier” solution for 3GHz signal-generation applications. While it is an entry level instrument, the S1131 provides most commonly used functions an engineer needs such as CW signal generation, AM/FM/PM/Pulse modulation, digital modulation (ASK, FSK, PSK), Up-converting, LF output etc. S1131 also provides flexible interfaces and support SCPI for easy remote control. S1131 is perfect suitable for education, RF component manufacture and maintenance.

Key Features

Frequency range from 9 kHz to 3 GHz

Typical output power from -120dBm to +10dBm

Multi sweep mode, Step sweep, list sweep, frequency sweep and power sweep

Standard low frequency output function, sine, square, triangle and saw tooth wave forms are supported

Standard analog modulation functions, AM, FM, PM and Pulse modulation, minimum pulse width is 100ns

Standard digital modulation functions, ASK, 2/4/8FSK, 2/4/8PSK supported

Support linear frequency modulation, can simulate radar signals

Standard IF input output, USB/LAN remote control interface, SCPI supported

Frequency Range

9 kHz to 3 GHz

Frequency Resolution

0.23 dB

Internal Reference Frequency

10 MHz

Temperature Stability

±0.5ppm (option: ±5ppb)

Internal Reference Output

10 MHz, +2 dBm (typ.)

Sweep Mode

Step sweep, List sweep

Trigger Mode

Auto, External

Output Power Range

-120 dBm to 10 dBm

Output Power Resolution

0.01 dB

Output Power Accuracy

< 1.8

SSB Phase Noise

Carrier Frequency Offset @f=300MHz:

• ≤-105 dBc / Hz @ 10kHz offset

• ≤-115 dBc / Hz @ 100kHz offset

Carrier Frequency Offset @f=1GHz:

• ≤-93 dBc / Hz @ 10kHz offset

• ≤-105 dBc / Hz @ 100kHz offset


< -30 dBc (typ.)


< -50 dBc (typ.)

Analog Modulation Functions

AM, FM, PM, Pulse

Internal Modulation Signal Waveform

•  Sine wave: 0.1Hz – 500kHz

•  Square: 0.1Hz – 20kHz

•  Triangle/ Sawtooth: 0.1Hz – 100kHz

RF Output Interface

Type-N, 50 Ω

Telecommunication Interface


Power Supply

340 (W) × 110 (H) ×230 (D) mm


< 5kg

(Note: see more detail information in the ‘Resource’ – ‘Datasheet’)

Main Machine

Module No. Item Description
S1131 RF Signal Generator 9 kHz to 3 GHz


Module No. Item Description
S1131-01 Internal Baseband Data Generation Option /
S1131-02 RF Upconversion Device /
S1131-03 Analog External Audio Modulation /
S1131-04 High Stability Time Base Option /
S1131-05 Power Meter Control Kit /
S1131-06 Directional Antenna Frequency range 600MHz - 8GHz
S1131-07 Omnidirectional Antenna Frequency range 300MHz - 7.5GHz

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