G1LRO Hardware Store

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More new products arriving soon – I’m moving away from eBay so it will be here for online purchase. Let me know if you can’t find anything.

Purchasing products

Please use the Buy Online link above to purchase my range of Radio products described on these pages

Buying Universal Radio Controller in the US? visit Halibut Electronics store

  • AIOC Update – new perfect COS for low cost HTs now available.

    AIOC Update – new perfect COS for low cost HTs now available.

    New AIOC Hardware Now Available This Summer I’m refreshing my AIOC project with new hardware and software, and I’m excited to share what’s coming. COS (Carrier Operated Signal) is used by applications like AllStarLink (ASL3) to indicate that a radio carrier is present, it not based upon the sound received, but on the carrier being…

  • Plug and Go Allstar Node Z2 with Color screen, speaker and Microphone

    Plug and Go Allstar Node Z2 with Color screen, speaker and Microphone

    New: Download User Guide . Buy Online: Now shipping with May software release including Allscan built-in:Preview video from M0FXB: https://www.youtube.com/watch?v=FMtGqJAo5jA Introducing the new all-in-one appliance for AllStarLink and similar radio applications. The unit contains all the required components to operate as an ASL node, fabricated into a sturdy aluminum enclosure with front-panel controls, no PC…

  • Introducing the AIOC Toolkit

    Introducing the AIOC Toolkit

    Configure and Flash Your AIOC From One Browser Tab If you’ve got an AIOC adapter for your handheld radio, you’ve probably used a couple of different tools to look after it: one to set PTT sources, audio gain, and GPIO behaviour, and — separately — dfu-util on the command line whenever new firmware comes out.…

  • Easily Turn an AIOC into a CM108 Sound Card

    Easily Turn an AIOC into a CM108 Sound Card

    TL;DR: You can make an AIOC (or URC, or Model 50) appear to your computer as a standard CM108 sound card, so it works plug and play with AllStarLink and other software with no patches or Python required. Use TF3HR’s browser-based utility at https://g1lro.github.io/aioc-toolkit/ to change the Vendor ID to 0x0D8C and Product ID to…

  • RLNZ2 Firmware Update & Mainboard v2 Release

    RLNZ2 Firmware Update & Mainboard v2 Release

    We’re pleased to announce a significant firmware update for all RLNZ2units, and the introduction of the new Mainboard v2 with enhancedcapabilities. FIRMWARE UPDATE: KEY IMPROVEMENTS The latest firmware release brings three substantial improvements tothe RLNZ2 experience: AllScan, the powerful AllStarLink Favorites Management and Scanningweb app, is now bundled with the RLNZ2 firmware. More importantly,username and…

  • Programing the USB Transceiver Model 50

    Programing the USB Transceiver Model 50

    The G1LRO USB Transceiver Model 50 is built around 2 discrete elements: Both of these need setting up individually before use. The setup process is : All of these steps are executed via a PC and Web browser, no command line access is needed. Step 1 : Flash AIOC Firmware Remove the Model 50 PCB…

  • Building an AllStar3 Node with the G1LRO AIOC and ASL3

    Building an AllStar3 Node with the G1LRO AIOC and ASL3

    Earlier this year I announced a refresh of the AIOC hardware — new hardware COS circuitry, improved voltage regulation, and a promise of a definitive how-to guide and setup script for ASL3. This is that guide. The new G1LRO AIOC board stays true to the original form factor while adding proper hardware COS support —…

  • USB PSU mod to remove mains-borne hum

    USB PSU mod to remove mains-borne hum

    Users of mains-powered USB audio equipment can sometimes encounter a persistent hum when using Switch Mode Power Supplies (SMPS). This can be impossible to fix by any other means — this article explains why it happens and how to fix it with a pair of wire cutters. The Y Capacitor Most SMPS include a small…

  • Programming the AIOC Hardware COS version.

    Programming the AIOC Hardware COS version.

    Don’t use this guide, All new AIOC and URC instructions are available on a new BLOG page. The contents of this page are left for historical indexing only. The following guide covers the steps to modify the Universal Radio Controller (URC) or AIOC to use in an AllStarLink node. The benefit of this implementation is:…

  • Simple Screen & Controls for AllstarLink3

    Simple Screen & Controls for AllstarLink3

    Add a low cost $5 display unit to any Raspberry Pi running ASL3 and gain real-time status and a simple node control menu. What you’ll need: This software is designed to work on the AllStarLink v3.0.20 image it’s unlikely to work on the Hamvoip setup. Note: this script is not tested on ASL v3.2 so…

  • New AIOC instructions for ASL with Virtual COS

    New AIOC instructions for ASL with Virtual COS

    All new AIOC and URC instructions are available on a new BLOG page. The contents of this page are left for historical indexing only. The following guide covers the steps to modify any version of the AIOC to use in an AllStarLink 3 node using the latest V1.3 firmware and Virtual COS. (for hardware COS…

  • New AIOC with Hardware COS for Tidradio TD-H3

    New AIOC with Hardware COS for Tidradio TD-H3

    All new AIOC and URC instructions are available on a new BLOG page. The contents of this page are left for historical indexing only. The following guide covers the steps to modify the latest GU1LRO ‘Blue’ version of the AIOC to use in an AllStarLink 3node. The benefit of this implementation is: What you will…

  • Moving away from eBay to this G1LRO.UK store

    Moving away from eBay to this G1LRO.UK store

    Now my G1LRO.UK store is up and running, I will be moving away from eBay as a primary sales channel for my products. The benefit to customers will be: The change will take place over the next few days and the store on this site will become fully populated with all my items available.

  • Introducing the UCi120 Radio-Less-Node

    Introducing the UCi120 Radio-Less-Node

    The AllScan UCI120 is a professional-grade USB Audio/PTT communications interface designed for applications like AllStar, EchoLink, and other push-to-talk (PTT) communications. It serves as a high-quality interface for connecting communication microphones, speakers, and related audio equipment to computers or embedded systems. Key Features: Pricing and Availability: Applications: The UCI120 is primarily intended for use in…

  • DFU Runtime alert in Device Manager

    DFU Runtime alert in Device Manager

    When using the URC or AIOC card (both have the same CPU) then windows will report an alert on the AIOC DFU Runtime device as per the picture above. This is an alert and not an error.. This alert should be ignored. It is an artifact of the firmware update process that stays active after…

  • USB Micro Transceiver for AllStarLink

    USB Micro Transceiver for AllStarLink

    This mini-project incorporates the trusty AIOC controller with a transceiver module (can be UHF or VHF) to make a self-contained USB-powered transceiver, suitable for use on AllStarLink nodes. The Micro Transceiver has a low output internal antenna for in-room use, or an external antenna can be attached via the standard external SMA connector. The rear…

  • Making an AllStarLink Node with the URC/AIOC

    Making an AllStarLink Node with the URC/AIOC

    All new AIOC and URC instructions are available on a new BLOG page. The contents of this page are left for historical indexing only. The following guide covers the steps to modify the Universal Radio Controller (URC) or AIOC to use in an AllStarLink node. The benefit of this implementation is: What you will need…

  • Universal Radio Controller: the M0FXB video series

    Universal Radio Controller: the M0FXB video series

    A good friend of the URC and AIOC is Andreas M0FXB. On Andreas’ channel you’ll find over 40 videos covering aspects of the URC and APRS board and the AIOC, it’s little brother. Andreas has a unique approach to his videos where he learns with you, rather than trying to teach, going though topics in…

  • Universal Radio Controller is the Guest on Ham Radio Workbench Podcast

    Universal Radio Controller is the Guest on Ham Radio Workbench Podcast

    Episode 205 of the Ham Radio Workbench podcast covers the Universal Radio Controller and the story behind it development, and the creator G1LRO. Download the episode on your favorite podcast app or listen directly on Libsyn on this link: https://workbench.libsyn.com/hrwb-205-universal-radio-controller-with-mark-herbert-g1lro

  • Amateur Radio Data Appliance: URC & U-Pi-S

    Amateur Radio Data Appliance: URC & U-Pi-S

    Currently under development on the G1LRO workbench is the U-Pi-S. This unit is a companion to the Universal Radio Controller (URC) that provides key elements to create the full specification of the Amateur Radio Data Appliance. In this article by Steve Stroh N8GNJ, Steve sets out the functionality required to create the Amateur Radio Data…

  • New URC Video Review by Tech Minds

    New URC Video Review by Tech Minds

    Matt, M0DQW has produced a superb review of the Universal Radio Controller and the APRS digipeater card on his Tech Minds YouTube channel. Matt’s review covers some of the more technical aspects of the URC including: You can view the video here on Matt’s channel, it’s definitely with subscribing to the Tech Minds channel as…

  • What is the Universal Radio Controller?

    What is the Universal Radio Controller?

    Introduction The G1LRO Universal Radio Controller (URC) bridges the gap between your computer and transceiver, significantly enhancing the functionality of your amateur radio setup. This blog post explores the URC’s capabilities, its utilization of the OHIS (Open Headset Interconnect Standard), the potential of personality boards for expansion, and how it fosters innovation within the amateur…

  • APRS Board How-to 1: Set-up and configuration

    APRS Board How-to 1: Set-up and configuration

    Accessing the configuration system The APRS card has a micro-controller running the VP-Digi software. This software is accessed via the serial port in the Universal Radio Controller (URC). Set the URC front panel switches to TNC on the left switch and ON on the right switch, To determine the COM number of your serial port,…

  • APRS Board How-to 2: Setting up an APRS Digipeater

    APRS Board How-to 2: Setting up an APRS Digipeater

    The Universal Radio Controller has an optional Personality Board to provide APRS Digipeater and Packet Radio modem functionality. Amateur Packet Reporting System (APRS) is a digital communication system utilized by amateur radio operators to exchange messages and track locations utilizing GPS. APRS works by transmitting digital packets of information, such as GPS coordinates, to other…

  • VHF/UHF Transceiver Personality Board

    VHF/UHF Transceiver Personality Board

    There’s an exciting current project on the G1LRO workbench with a new personality board creation. Working as a collaborative project with Smitty N6MTS (who also supplies the Universal Radio Controller in the USA and internationally), we’re creating an innovative transceiver board for the URC. The single board design supports a UHF or VHF transceiver module,…

  • URC Open Hardware personality boards

    URC Open Hardware personality boards

    Following the publication of the expansion interface on the Universal Radio Controller, and the inclusion of the Creator personalty board, the personality board specification and fabrication is now in the public domain under the Open Hardware licencing program. To support this, the physical design files for the personality board and the front panels are available…

  • Internal Modem Port: Interface Specification

    Internal Modem Port: Interface Specification

    This guide is aimed at creators who are interested using the main board features of the URC for new in innovative applications. The J-MODEM1 connector on the URC main board was added in to the main design to provide the capability to accommodate ‘Personality Boards’ to make use of the URC functionality. Since the entire…

  • New ‘creator’ personality board

    New ‘creator’ personality board

    Later version 2.2 models of the URC include the ‘creator’ board behind the front panel. If you have a front panel switch for ‘Serial Port Function’ then you have a creator board inside (or you’ve added the APRS or WinKeyer board already). The creator board performs the basic function of routing the serial port signals…

  • Universal Radio Controller v2.2 Technical Reference

    Universal Radio Controller v2.2 Technical Reference

    This post is currently in draft, please contact me if you notice any errors. Overview The latest version (V2.2) of this multi-port ‘universal’ radio controller is a versatile device that sits between your computer and transceiver. The unit provides the following functions: The URC is housed in a 100x88x38mm enclosure with custom silk-screened front an…

  • Read the M1NER review of the URC & VP-Digi APRS board

    Read the M1NER review of the URC & VP-Digi APRS board

    Andy Taylor M1NER joined the early adopter program for the VP-Digi APRS Digipeater and Packet Modem personality board. In his blog you can follow his progress through the initial setup and ongoing performance of this interesting low-cost add on to the Universal Radio Controller V2.2 Follow Andy’s blog here to get updates on his expereince…

  • The All In One Cable thingy – AIOC

    The All In One Cable thingy – AIOC

    AIOC All In One Cable For Ham Radio transceivers including Baofeng, Quansheng and many other makes of portable HT transceivers ‘Handy Talkies’. The AIOC and Universal Radio Controller use the same CPU and firmware so if you need more connectivity options and extended features, check out the URC too. I have been building and selling…

  • The K1EL WinKeyer V3.1 Personality Board

    The K1EL WinKeyer V3.1 Personality Board

    Introducing the second option for the Universal Radio Controller V2.2, is the K1EL WinKeyer V3.1 personality board. See this in action on this video: https://fb.watch/owPpiV8SZH/ The WinKeyer 3.1 personality board provides a convenient way to connect your PC to an amateur radio transceiver and send Morse both under computer control and by iambic paddle. WinKeyer…

  • APRS Digipeater & KISS Modem Personality Board

    APRS Digipeater & KISS Modem Personality Board

    The first option board created to use the expansion port in the URC is a KISS modem and APRS digipeater based upon the VP-Digi Blue Pill module. This module connects to an attached transceiver and the URC seral port to provide true modem capabilities for packet radio. There’s a video of the URC & modem…

  • Latest V2.2 Controller Overview

    Latest V2.2 Controller Overview

    For up-to-date technical information go to this post. https://g1lro.uk/?p=330 V2.2 of the Universal Radio Controller brings some minor tweaks to the V2 design, but importantly opens a road map for future product add-ons. The Version 2 main board in the URC has reached the maximum for the number of ports that could be fitted in…

  • Adding CAT functionality to a Baofeng with the Universal Radio Controller

    Adding CAT functionality to a Baofeng with the Universal Radio Controller

    The Universal Radio Controller is fairly unique in that it can do TX/TX/PTT and programming for a Baofeng (and other two-pin radios) without needing to unplug any wires. The Baofeng radios traditionally lacked any type of Computer Aided Transceiver (CAT) capability, but the Universal Controller can drive the programming capability of the radio at the…

  • A look inside the V2 Universal Radio Controller

    A look inside the V2 Universal Radio Controller

    The second version of the Universal Radio Controllers evolves several features of its predecessor and has additional Computer Aided Transceiver (CAT) capabilities. Other than the new CAT feature, the notable changes from the V1 edition are: Jumper Configuration Several functions in the controller are manipulated by internal jumpers. The unit is easily accessible to change…

  • Introducing the Universal Radio Controller V2

    Introducing the Universal Radio Controller V2

    The version (V2) of this multi-port ‘universal’ radio controller is a simple device that sits between your computer and transceiver and provides the following functions: 1) USB-C sound card to convert the receive/transmit audio from the transceiver to USB, capable up to 48,000 samples per second. 2) Full PTT control to allow automatic receive &…

  • Universal Radio Controller featured on Ham Radio Workbench Podcast

    Universal Radio Controller featured on Ham Radio Workbench Podcast

    This week’s HRWB podcast had a great mention for the Universal Radio Controller and in particular its unique OHIS capabilities, USB connected sound card and transceiver PTT controls. George KJ6VU described the URC as “pretty universally useful” You can listen to the entire podcast at https://www.hamradioworkbench.com/podcast – well worth subscribing to. Many thanks to Mark “SmittyHalibut” N6MTS”…

  • The Universal Radio Controller processor & Firmware Updates

    The Universal Radio Controller processor & Firmware Updates

    At the heart of the Universal Radio Controller is the STM32F302 cpu running the AIOC open-source firmware. Along with the 32-bit ARM Cortex M4 core are a host of interfaces to manage the radio functions needed such as: The Sound Card, serial port, PTT and CM108 functions are primarily provided by the CPU. The firmware…

  • DigiPi and the Universal Radio Controller – Part 1

    DigiPi and the Universal Radio Controller – Part 1

    I’m a big fan (and Patreon) of the KM6LYW Radio DigiPi Project digipi.org DigiPi contains a comprehensive suite of digital utilities and applications for ham radio. Several of the utilities use the DireWolf AX.25 packet modem/TNC and APRS encoder/decoder. To help users of DigiPi and the URC (and AIOC) I’ve worked though the configuration elements…

  • DigiPi and the Universal Radio Controller – Part 2

    DigiPi and the Universal Radio Controller – Part 2

    This section covers the configuration of the remaining utilities on the DigiPi. I welcome any contributions for pieces I have missed here. When process of configuring these utilities is complete, save the settings with the Save Configs option in the main menu. Configure WSJTX Select the WSJTX FT8 (turn on) in the menu. Choose the…

  • Making HT cables for the URC

    Making HT cables for the URC

    I’m pretty confident these cables will work with any of the Baofengs/Quansheng etc. that use the dual-jack microphone connector as they would all be wired the same way to use a standard external Mic. Regarding the cables, you need:a 3.5mm stereo (TRS) to 3.5mm stereo (TRS) jack plug wire – these are often off the shelf wires used for…

  • The joy of OHIS – Open Headset Interconnect Standard

    The joy of OHIS – Open Headset Interconnect Standard

    The Open Headset Interconnect Standard (OHIS) is actively being developed by Mark N6MTS. Information is available at https://ohis.org/ There are so many different standards for microphone, headphone, and PTT that it is improbable that one could take their preferred headset and connect it to any radio without an adapter. In a multi-user environment, such as…

  • Introducing the Universal Radio Controller V1

    Introducing the Universal Radio Controller V1

    The version (V1) of this multi-port ‘universal’ radio controller is a simple device that sits between your computer and transceiver and provides the following functions: 1) USB-C sound card to convert the receive/transmit audio from the transceiver to USB 2) Full PTT control to allow automatic receive & transmit using either serial port settings (DTR…

  • Universal Radio Controller V0.9

    Universal Radio Controller V0.9

    The V0.9 of the Universal Radio Controller was an initial proof-of-concept implementation of the AIOC processor into a new chassis and presenting the connections with additional filtering to standard Jack plugs for connection to most transceivers. The V0.9 unit provided: 1) USB-C sound card to convert the receive/transmit audio from the transceiver to USB 2)…

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