miniVNA Pro 2

Why Pro 2 for HF/VHF?

Designed for 0.1–230 MHz, Pro 2 focuses on where most amateur, lab, and production work actually happens. Measuring at the feedpoint removes coax loss and ferrite fuss. The dual-channel I/Q DDS lets you run signal-gen experiments without extra boxes.

  • Pocket-size form factor; battery powered (~4 h)
  • Clean HF/VHF baselines; confident matching and filter work
  • Open-ended: integrate with fixtures, custom front-ends, or OEMs

Software & App

mRS Device Manager (Windows/Linux/Mac(Experimental)) plus Android app for phone/tablet control.

  • Sweep S11/S21, full phase measurement, multi-trace overlays, markers & integrated Smith chart
  • Toggle between single scans or continuous frequency sweeps.
  • Save and manage calibration files for traceable results.
  • Export measurement data in scattering format for reporting.

Java 21+ required. See the Quick Start for a walkthrough.

Quick Start (PDF)
mRS Device Manager
Download App (Win/Linux)
mRS Device Manager v1.0.1

Main features

  • I/Q DDS generator: 2 channels AD9958 by Analog Devices
  • Two separate buffered RF I/Q outputs for SDR experiments & IMD tests with independent 0–55 dB attenuator; 1° phase adjustment
  • VNA measurements: S11 & S21; results displayed & saved
  • Full phase measurement with Smith chart in software
  • Calibration using open/short/load (OSL) for accurate results
  • Measurements of motional crystal parameters, cable length, and more
  • Power-save mode
  • Accessory port for future optional interfaces
  • SMA connectors for better isolation
  • Boot loader for future firmware upgrades
  • Compatible with our Device Manager software

Key specifications

Frequency range 100 kHz – 230 MHz (HF/VHF focus)
Frequency step 1 Hz
Impedance range (|Z|) 1 to 1000 Ω
Ports / S-parameters 2 ports; S11 / S21
Dynamic range (extended) Up to ~100 dB (Transmission / S21) and ~80 dB (Reflection / S11)
Wireless control Class-1 Bluetooth with external PCB antenna; remote measurements up to ~100 m (PC/Android)
Signal generator Dual-channel I/Q DDS (AD9958), 0–55 dB attenuation, 1° phase steps; RF generator power 0 dBm each
Connectors SMA for improved isolation
Power USB supply (220 mA @ 3.6 V) or internal Li-ion battery 1000 mAh
Charging Built-in charger (up to 400 mA/h)
Dimensions Pocket-size; very compact
Price €299

Specs consolidate typical and extended figures for clarity.

What's in the box

  • miniVNA Pro 2 unit
  • USB charging/data cable
  • Quick start card + link to software
  • Optional: basic O/S/L kit (if ordered)

Looking above 230 MHz?

For 0.1–3 GHz work, see miniVNA Tiny. for 2GHz-6GHz, check out 2-Port VNA.