GW3JVB GW3JVB Software

Cross-platform scanner utility

Mac125

Latest macOS version: v0.5.3

Latest Windows version: v0.1.4

A free companion application for the Uniden UBC125XLT scanner, for macOS and, despite the name, native 64-bit Windows too.

Mac125 connects to the scanner over USB and gives you a desktop app for the jobs that are awkward to do directly on the radio: reading, editing, backing up and writing scanner memories.

Mac125 for macOS v0.5.3 Mac125 for Windows v0.1.4 Installation Notes
Mac125 logo
ScannerUniden UBC125XLT.
PlatformsmacOS and 64-bit Windows.
Latest releasesmacOS v0.5.3 and Windows v0.1.4.

What it does

Scanner programming on the desktop you use.

Mac125 is intended to be practical rather than complicated: connect the scanner, load the memories, make changes, and write them back when you are ready. The Windows release brings the same focused workflow to a native Windows app.

Connect and monitor

  • USB serial discovery and connection to the Uniden UBC125XLT
  • Live scanner display with Uniden Faithful and Mac125 Enhanced views
  • Close Call support, volume and squelch controls
  • Scanner settings, Priority controls and diagnostics export

Channel workspace

  • Read, edit, move, swap and write scanner memories
  • Scoped bank and range reads, plus Read All Channels
  • Verified write and readback workflows
  • Backup guidance before important scanner changes

Help and support

  • Built-in Help and direct support links
  • Optional donations to support continued development
  • Discord for questions, feedback and issue reports
  • Scanner changes always remain the user's responsibility

Why I made it

One scanner tool for the computers I actually use.

I could not find the sort of native-feeling utility I wanted for the UBC125XLT, so Mac125 became one of those “I wonder if I can build this” projects. It started on the Mac and is now also available as a native Windows app.

It is free to use, developed in spare time, and shared in the hope that it helps other scanner users who prefer working from a Mac or Windows PC.

USB safety note: do not unplug the scanner while it is connected and being read from or written to. Power the scanner off first if you need to disconnect it.
Mac125 app screenshot

Installation overview

Choose your platform.

Mac125 has separate public release pages for macOS and Windows. Existing users can use the app's update notification where available; new users can obtain the installer or DMG from the relevant GitHub release page. Installation and scanner changes always need your approval and action.

Mac125 for macOS

Mac125 v0.5.3 is a universal Apple Silicon and Intel build for macOS 12 or later. Download Mac125_v0.5.3_macos.dmg, close Mac125, then drag or copy the new app to Applications and replace the existing copy.

Installation is always manual: nothing downloads, installs or replaces your current app automatically. Mac125 is ad-hoc signed and not notarised, so if Gatekeeper warns that the app is from an unidentified developer, use the usual macOS Open Anyway route in System Settings after confirming it came from the trusted GitHub release page.

Create a scanner backup before important changes.
Download Mac125 v0.5.3 DMG macOS v0.5.3 Release Notes

Mac125 for Windows

Open the Windows v0.1.4 release page and choose the Mac125 installer under Assets.

  • Self-contained installer for 64-bit Windows, with no separate .NET runtime required
  • Creates normal Start Menu and desktop access
  • Supports safe upgrades while retaining user settings and saved scanner data
Mac125 for Windows v0.1.4

macOS v0.5.3

Clearer channel editing and more useful scanner activity detail.

Mac125 remains a free universal Apple Silicon and Intel app for macOS 12 or later. Installation remains manual and always under your control.

What's new in v0.5.3

  • Fixed disappearing CTCSS and DCS selection menus, whether the scanner is connected or disconnected.
  • Clearer guidance to apply or discard unfinished local edits before saving.
  • Improved Live Activity Log channel names, memory numbers and bank details, including filtering and CSV export.
  • Improved Scan identification, readable column headings and remembered column widths.

Thank you to Andrew Pennock for reporting the CTCSS dropdown issue and providing the details that helped us reproduce it and correct the CTCSS and DCS menus.

Download Mac125 v0.5.3 DMG macOS v0.5.3 Release Notes

macOS v0.5.2

Small fixes and a tidier workspace.

Existing Mac users are notified when an update is available. The download, installation and any scanner changes remain entirely under your control.

What's new in v0.5.2

  • Fixes a channel-selection issue that could prevent Apply local edit being available after changing banks or filters. A normal click now correctly selects only that row and clears hidden selections.
  • Tidies secondary workspace controls into a matching two-column panel for Custom Search, Live Activity Log, Global Lockouts, Priority and Scanner Settings.
  • Adds a new Companion section in Mac125 Settings, preparing the Mac app for a future Mac125 companion release on iPhone and iPad.
  • Updates the in-app Help and release notes.

Special thanks to David (Astra) for helping identify and track down the channel-selection issue.

Mac125 for macOS v0.5.2

What's new

  • Standard and Wide workspaces, with remembered layout choice and window position
  • A Wide layout that makes better use of shorter laptop displays, with collapsible Audio controls
  • Direct channel-table editing with double-click or F2, plus normal keyboard navigation
  • A compact Edit Details view for full channel editing
  • Optional local Notes, kept with local files and backups and never written to the scanner
  • New local channels can be created in empty rows, with validation before saving or writing
  • Existing scanner-write safeguards remain: review, confirmation, backups and verified readback

Thanks to Adrian Burrows for his suggestions and enthusiastic support during this update.

Mac125 for Windows checks its dedicated Windows GitHub releases repository for newer stable versions. You choose whether to download or install an update; the app does not download or install updates automatically.

Mac125 for Windows v0.1.4 Windows Downloads Repository

Original blog post

The original Mac125 blog page has extra background, screenshots and notes from the first public versions.

Read Blog Post

Support development

Feedback and testing are very welcome.

Mac125 is a spare-time GW3JVB project and is free to use. Discord is the preferred place for questions, feedback and issue reports. If it helps you, donations are appreciated but never required; reports, suggestions and real-world testing are just as useful.

PayPal.me Donate Buy Me a Coffee Discord Support & Feedback