TORUN DiGi Gate V3-Z – The Next Generation AllStarLink & SVXLink Interface

Take your Amateur Radio node to the next level with the TORUN DiGi Gate V3-Z, a professional-grade Raspberry Pi HAT specially optimized for the Raspberry Pi Zero 2 W.

Building on the proven TORUN DiGi Gate platform, the V3-Z introduces a redesigned and more compact hardware architecture with enhanced audio filtering, improved power stability, and software-controlled RF output power.

The V3-Z combines an integrated SA818 UHF/VHF radio module, original CM108B USB audio interface, OLED status display, GPIO control, RF filtering, and intelligent power management into one compact and reliable solution.

Whether you are building an AllStarLink node, SVXLink gateway, personal hotspot, repeater interface, or club station, the DiGi Gate V3-Z is designed to provide clean audio, stable operation, and simple installation.

Why Choose TORUN DiGi Gate V3-Z?

The V3-Z is more than a smaller version of the DiGi Gate.

It has been redesigned specifically around the Raspberry Pi Zero 2 W, making the complete node extremely compact while improving the electrical and RF performance of the interface.

🚀 Software-Controlled High / Low Power

For the first time in the TORUN DiGi Gate series, RF output power can be selected through software.

No physical power switch is required.

Simply select High Power or Low Power through the software menu and configure the SA818 according to your operating requirements.

This makes power management easier, faster, and more flexible for different node and operating environments.

🎧 Enhanced Audio Filtering

The V3-Z features additional filtering on the audio signal path to improve audio quality and reduce unwanted noise and interference.

The redesigned audio section helps provide cleaner audio between the Raspberry Pi and SA818 radio module.

⚡ Improved SA818 Power Stability

The V3-Z adds additional power-line capacitance dedicated to the SA818.

This provides a more stable power supply to the radio module during operation and helps improve overall node reliability, particularly during transmit operation.

📦 Ultra-Compact Raspberry Pi Zero 2 W Design

The V3-Z is specifically optimized for the Raspberry Pi Zero 2 W.

Its compact form factor allows you to build a complete AllStarLink or SVXLink node in a very small enclosure without sacrificing the essential features of a professional radio interface.

Key Features

1. Optimized for Raspberry Pi Zero 2 W

2. Integrated SA818 UHF/VHF radio module

3. Original CM108B USB audio chipset

4. Professional USB audio interface

5. OLED real-time status display

6. Software-controlled High / Low RF power

7. Enhanced audio-line filtering

8. Improved SA818 power filtering

9. Additional power-line capacitors for stable SA818 operation

10. Hardware GPIO support for PTT and COS

11. Compact Raspberry Pi HAT design

12. Professional RF layout

13. 50Ω impedance matching

14. Integrated RF Low Pass Filter

15. Reduced RF interference

16. Power protection

17. Dedicated Power, COS, ACT and PTT indicators

18. SA818-MENU compatible

19. AllStarLink compatible

20. SVXLink compatible

Intelligent OLED Status Display

The integrated OLED display provides real-time information about your node, including:

• AllStarLink / SVXLink Node Number

• Callsign

• IP Address

• Wi-Fi Signal Strength

• RX / TX Status

• Connected Nodes

• System Status

• Radio Status

Software Power Control

The DiGi Gate V3-Z introduces a new software-based RF power control system.

Users can select:

HIGH POWER
For maximum available SA818 RF output.

LOW POWER
For reduced RF output when operating a local node, hotspot, repeater interface, or other applications where lower power is preferred.

This eliminates the need for a physical High/Low power switch and allows the power mode to be changed directly through software.

Professional Audio & RF Design

The V3-Z has been designed with both audio and RF performance in mind.

The enhanced audio path includes additional filtering to help reduce unwanted noise, while the RF section incorporates impedance matching and filtering for cleaner radio operation.

The result is a compact interface designed for reliable continuous node operation.

Compatible Software

The TORUN DiGi Gate V3-Z supports:

✅ AllStarLink
✅ SVXLink
✅ Raspberry Pi OS / 64-bit ARM
✅ Raspberry Pi Zero 2 W
✅ SA818 UHF/VHF modules

SA818-MENU Support

Configure the integrated SA818 radio directly from the Raspberry Pi using the TORUN software tools.

Configuration options include:

• Frequency

• CTCSS

• Bandwidth

• TX/RX settings

• RF output power

• Other SA818 parameters

LED Status Indicators

Dedicated indicators provide quick visual feedback for:

• POWER

• COS

• ACT

• PTT

Compact. Reliable. Professional.

The TORUN DiGi Gate V3-Z was designed for operators who want a complete radio node without a large collection of external boards, cables, and adapters.

With the Raspberry Pi Zero 2 W and DiGi Gate V3-Z combined, you can build an extremely compact AllStarLink or SVXLink node while maintaining professional audio, RF filtering, power stability, and software control.

Why Amateur Radio Operators Choose DiGi Gate V3-Z

• Optimized for Raspberry Pi Zero 2 W

• Software High / Low power control

• Enhanced audio filtering

• Improved SA818 power stability

• Original CM108B chipset

• Integrated SA818 radio

• OLED real-time monitoring

• 50Ω impedance matching

• RF Low Pass Filter

• Compact professional design

• Hardware PTT / COS support

• SA818-MENU support

• AllStarLink support

• SVXLink support

• Easy installation

TORUN DiGi Gate V3-Z

Smaller. Smarter. More Control.

A new-generation Raspberry Pi Zero 2 W interface for AllStarLink and SVXLink, engineered for clean audio, stable radio operation, compact installation, and intelligent software control.

TORUN – The Only Radio You Need.