GitHub - RFingAdam/mcp-rs-siggen: MCP server for Rohde & Schwarz signal generators (SMW200A, SMBV100B, SGT100A, SGS100A, SMA100B, SMB100A, SMBV100A, SMC100A)

Drive Rohde & Schwarz signal generators from any MCP-compatible AI client. TCP/IP SCPI — 53 tools across CW / analog / IQ / ARB / digital-standard (LTE, 5G NR, WLAN, Bluetooth) signal generation.

Quick start · Tools · Workflows · Documentation

Important

Hardware required. This MCP server controls real R&S signal generators over TCP/IP SCPI. You need actual SMW / SMBV / SMM / SMCV / SGT / SGS / SMA / SMB / SMC hardware on the network to be useful. The server is a thin driver — no built-in simulator. Generator-specific option licenses (e.g. K71 for 5G NR, K81 for WLAN) must be enabled on the unit for the matching tool surface to function.

What is mcp-rs-siggen?

mcp-rs-siggen is a Model Context Protocol server that automates R&S signal generators via direct TCP/IP SCPI. The generator family covers vector (SMW200A, SMBV100B, SMM100A, SMCV100B), SGMA RF sources (SGT100A, SGS100A), and analog/microwave generators (SMA100B, SMB100B) — frequencies up to 67 GHz, IQ bandwidths up to 2 GHz.

Drive it from Claude Desktop, Claude Code, OpenAI Agents SDK, or any other MCP client. The server handles CW output, analog modulation (AM/FM/PM/Pulse), IQ modulation with impairment injection, ARB waveform playback, baseband digital standards (LTE, 5G NR, WLAN, Bluetooth), sweeps, and pre-built signal templates.

What mcp-rs-siggen does well:

🤖 AI-native via MCP. First-class Model Context Protocol server with 53 tools across 13 categories. Any Claude / LLM agent can drive it.
🐍 Python + MCP surfaces. Import rs_siggen_mcp for direct driver access, or run as an MCP server for AI-agent automation.
⚡ Direct TCP/IP SCPI. No VISA install needed; talks straight to port 5025.
✅ Digital-standards coverage. LTE, 5G NR, WLAN, Bluetooth — single tool per standard with sensible defaults.
🔒 AGPL-3.0-or-later. SCPI-injection-guarded, path-traversal-protected, safety limits on power and frequency.

Quick start

Install

pip install rs-siggen-mcp

Or with uv:

uv pip install rs-siggen-mcp

From source:

git clone https://github.com/RFingAdam/mcp-rs-siggen.git
cd mcp-rs-siggen
uv sync --dev

Configure

export SIGGEN_DEFAULT_HOST=192.168.1.100
rs-siggen-mcp

Variable	Default	Description
`SIGGEN_DEFAULT_HOST`	`192.168.1.100`	Generator IP
`SIGGEN_DEFAULT_PORT`	`5025`	SCPI TCP port
`SIGGEN_CONNECTION_TIMEOUT`	`5.0`	TCP connection timeout (s)
`SIGGEN_COMMAND_TIMEOUT`	`30.0`	SCPI command timeout (s)
`SIGGEN_MAX_POWER_DBM`	`20.0`	Max allowed output power
`SIGGEN_MIN_POWER_DBM`	`-140.0`	Min allowed output power
`SIGGEN_MAX_FREQUENCY_HZ`	`67e9`	Max allowed frequency
`SIGGEN_ALLOW_RAW_SCPI`	`true`	Enable raw SCPI commands

Two surfaces, same answer

Python

import asyncio
from rs_siggen_mcp.driver import SiggenDriver

async def main():
    async with SiggenDriver("192.168.1.100", 5025) as sg:
        await sg.set_frequency(1e9)
        await sg.set_power(-10)
        await sg.output_on()
        # ... let receiver capture ...
        await sg.output_off()

asyncio.run(main())

MCP (Claude Desktop, Claude Code, any MCP client)

{
  "mcpServers": {
    "rs-siggen": {
      "command": "rs-siggen-mcp",
      "env": {
        "SIGGEN_DEFAULT_HOST": "192.168.1.100"
      }
    }
  }
}

Then ask your assistant:

"Connect to the siggen, set up a 5G NR 100 MHz signal at 3.5 GHz, −20 dBm, and turn the output on."

The agent walks through siggen_connect, siggen_configure_5gnr, siggen_set_frequency, siggen_set_power, siggen_output_on.

OpenAI Agents SDK

This server also plays nicely with the OpenAI Agents SDK:

from agents import Agent
from agents.mcp import MCPServerStdio

async with MCPServerStdio(
    command="rs-siggen-mcp",
    env={"SIGGEN_DEFAULT_HOST": "192.168.1.100"},
) as siggen_server:
    agent = Agent(
        name="RF Test Engineer",
        instructions="You control R&S signal generators for RF testing.",
        mcp_servers=[siggen_server],
    )

Tools

53 MCP tools, grouped:

Group	Tools
Connection (6)	`siggen_discover`, `siggen_connect`, `siggen_disconnect`, `siggen_identify`, `siggen_get_status`, `siggen_get_model_info`
RF Output (5)	`siggen_set_frequency`, `siggen_set_power`, `siggen_output_on/off`, `siggen_set_phase`
Analog Modulation (5)	`siggen_configure_am/fm/pm/pulse`, `siggen_modulation_all_off`
IQ Modulation (3)	`siggen_iq_on`, `siggen_iq_off`, `siggen_configure_iq_impairments`
ARB (5)	`siggen_load_waveform`, `siggen_arb_on/off`, `siggen_set_arb_clock`, `siggen_list_waveforms`
Digital Standards (5)	`siggen_configure_lte/5gnr/wlan/bluetooth`, `siggen_generate_waveform`
Sweep (3)	`siggen_configure_freq_sweep`, `siggen_configure_power_sweep`, `siggen_configure_list_mode`
Reference (2)	`siggen_set_reference_source`, `siggen_get_reference_status`
Calibration (2)	`siggen_run_calibration`, `siggen_get_calibration_status`
SCPI (4)	`siggen_scpi_send`, `siggen_scpi_query`, `siggen_reset`, `siggen_preset`
Templates (3)	`siggen_list_templates`, `siggen_load_template`, `siggen_apply_template`
State (3)	`siggen_save_state`, `siggen_load_state`, `siggen_get_full_state`
Limit Lines (7)	`siggen_limit_create/list/remove/check/get_status/save/load`

Full tool reference in docs/tools.md.

Supported instruments

Model	Type	Max Frequency	IQ Bandwidth	Key capabilities
SMW200A	Vector	67 GHz	2 GHz	MIMO, digital standards, ARB
SMBV100B	Vector	6 GHz	1 GHz	Digital standards, ARB
SMM100A	Vector	44 GHz	—	Modulation, ARB
SMCV100B	Vector	7.125 GHz	—	Digital standards
SGT100A	SGMA vector	6 GHz	1 GHz	Compact, SGMA
SGS100A	SGMA CW	12.75 GHz	—	CW-only, SGMA
SMA100B	Analog	67 GHz	—	Ultra-low phase noise
SMB100B	Analog microwave	40 GHz	—	Microwave

Signal templates

Built-in signal templates provide quick setup for common test scenarios. Load by name with siggen_load_template, then siggen_apply_template to push.

Template	Description
`cw_1ghz`	1 GHz CW at −10 dBm
`lte_10mhz` / `lte_20mhz`	LTE 10/20 MHz FDD
`nr_100mhz`	5G NR 100 MHz
`wlan_80mhz`	WLAN 802.11ac 80 MHz
`bluetooth_le`	Bluetooth Low Energy
`two_tone_1mhz` / `two_tone_10mhz`	Two-tone with 1 / 10 MHz spacing
`fm_broadcast`	FM broadcast signal
`am_test`	AM test signal
`pulse_radar`	Pulse radar signal

Security

SCPI input sanitization — all user-provided string parameters validated against injection patterns (semicolons, newlines, command sequences).
Path-traversal protection — file paths for state save/load validated against directory traversal.
Raw SCPI guard — direct SCPI command passthrough disablable via SIGGEN_ALLOW_RAW_SCPI=false.
Safety limits — configurable maximum power and frequency clamps.
Async locks — thread-safe access to shared mutable state.

See SECURITY.md for vulnerability reporting.

Workflows

mcp-rs-siggen fits in the following eng-mcp-suite workflow bundles:

lab-automation — pair with copper-mountain-vna-mcp, mcp-rs-spectrum-analyzer, and mcp-rs-cmw500 for end-to-end RF bench-test workflows driven from a single agent session.
rx-sensitivity — drive controlled stimulus while a sibling analyzer measures the result.

eng-mcp-suite install --workflow lab-automation

Documentation

📘 Quick Start — install through first call.
🛠️ Tool reference — every MCP tool, every argument.
📐 Usage examples — an RX-sensitivity sweep walkthrough.
🏗️ Architecture — how this MCP fits in eng-mcp-suite.
📝 Changelog

Part of eng-mcp-suite

_{This MCP server is part of}

_{Part of eng-mcp-suite — an open
umbrella of MCP servers for RF / EMC / PCB / signal-integrity engineering. Drop
into the lab-automation workflow bundle with
eng-mcp-suite install --workflow lab-automation.}

Domain	Sibling MCPs
RF / Transmission lines	lineforge
EMC regulatory	mcp-emc-regulations
EM simulation	mcp-openems, mcp-nec2-antenna
Diagrams	drawio-engineering-mcp
Lab gear	copper-mountain-vna-mcp · mcp-rs-spectrum-analyzer · mcp-rs-siggen · mcp-rs-cmw500

Contributing

See CONTRIBUTING.md for development setup and guidelines.

License

AGPL-3.0-or-later. Relicensed from Apache-2.0 in v0.2.0 to align with the eng-mcp-suite toolkit-wide AGPL move.

Acknowledgments

Rohde & Schwarz — for the published SCPI command references covering the SMW / SMBV / SGT / SGS / SMA / SMB / SMC families.
The MCP working group — for the Model Context Protocol specification.

_{Part of eng-mcp-suite — built for RF engineers, PCB designers, EMC labs, and AI agents.}

Name		Name	Last commit message	Last commit date
Latest commit History 12 Commits
.github		.github
assets		assets
docs		docs
examples		examples
src/rs_siggen_mcp		src/rs_siggen_mcp
tests		tests
.env.example		.env.example
.gitignore		.gitignore
.mcp.json		.mcp.json
.pre-commit-config.yaml		.pre-commit-config.yaml
CHANGELOG.md		CHANGELOG.md
CONTRIBUTING.md		CONTRIBUTING.md
LICENSE		LICENSE
README.md		README.md
SECURITY.md		SECURITY.md
mkdocs.yml		mkdocs.yml
pyproject.toml		pyproject.toml
uv.lock		uv.lock

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What is mcp-rs-siggen?

Quick start

Install

Configure

Two surfaces, same answer

OpenAI Agents SDK

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Documentation

Part of eng-mcp-suite

Contributing

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What is mcp-rs-siggen?

Quick start

Install

Configure

Two surfaces, same answer

OpenAI Agents SDK

Tools

Supported instruments

Signal templates

Security

Workflows

Documentation

Part of eng-mcp-suite

Contributing

License

Acknowledgments

About

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