LiNK500MP TNC (MK2) is an advanced communications interface designed for the TX500MP, combining wireless audio, wireless CAT control, USB audio, APRS tracking, Bluetooth connectivity and built-in GPS in one compact, rugged unit. It is built for amateur radio operators who need a flexible solution for portable operation, digital modes, emergency communication and field deployment.
Overview
The LiNK500MP TNC (MK2) expands the capability of the TX500MP by integrating multiple operating functions into a single purpose-built device. It supports modern digital-mode workflows with a simplified station layout, while reducing cable clutter through wireless audio transmission and wireless CAT control. Its CNC-milled aluminum housing is designed for demanding outdoor and portable use, making it a strong fit for operators who value durability, transportability and dependable operation in real-world conditions.
For users running FT8, JS8Call, VARA, VarAC, APRS or packet applications, the LiNK500MP TNC (MK2) provides a practical bridge between transceiver and computer or mobile device. With USB audio, Bluetooth support and integrated control features, it helps create a cleaner, faster-to-deploy portable setup.
Key Features
- Designed specifically for the TX500MP radio
- Wireless audio transmission for cable-free digital-mode operation
- Wireless CAT control for remote transceiver control without physical cabling
- USB audio interface for digital-mode software integration
- Internal USB hub architecture
- Supports AX.25 packet protocol for AFSK and RPR operation
- Integrated audio, CAT and data interfaces
- Built-in GPS receiver for position data without requiring an external GPS antenna
- Built-in Bluetooth module compatible with iOS, Android, Windows, macOS and Linux
- Built-in APRS tracker for automatic position and status reporting
- Dedicated VFO knob for direct manual frequency tuning
- CNC-milled aluminum enclosure for rugged portable use
Typical Applications
- Man-pack portable and field radio operation
- Emergency communications and rapid deployment setups
- Digital-mode operation including FT8, JS8Call, VARA and VarAC
- APRS tracking and position reporting
- Packet radio and TNC-based data communication
Specifications
| Product | LiNK500MP TNC (MK2) |
|---|---|
| Radio compatibility | TX500MP |
| Wireless audio | Yes, MK2 version |
| Wireless CAT control | Yes, MK2 version |
| USB interface | Yes, for digital-mode operation |
| Internal USB hub | Yes |
| Packet support | AX.25 for AFSK and RPR |
| Audio interface | Integrated |
| CAT interface | Integrated |
| Data interface | Integrated bidirectional analog data path |
| GPS receiver | Built in |
| Bluetooth | Built in |
| Platform compatibility | iOS, Android, Windows, macOS, Linux |
| APRS tracker | Built in |
| Tuning control | Dedicated VFO knob |
| Enclosure | CNC-milled aluminum |
Why choose the LiNK500MP TNC (MK2)
- Combines multiple radio interfacing functions into one purpose-built unit for the TX500MP
- Reduces cable clutter with wireless audio and wireless CAT control
- Supports both portable field use and modern digital-mode operation
- Rugged aluminum construction helps it stand up to demanding operating environments
What’s included – In the Box
- LiNK500MP TNC (MK2) device
- Mounting kit for the TX500MP radio
- Manual
Performance notes / setup guidance
For best results, pair the LiNK500MP TNC (MK2) with a TX500MP in a well-planned portable or fixed setup where digital-mode software, APRS or packet functions are part of your operating plan. The built-in wireless audio and CAT features make it especially attractive when you want to minimize cables in the field. Operators using WSJT-X, JTDX, JS8Call, VARA or VarAC should verify software audio and CAT settings during initial setup to ensure smooth integration. Built-in Bluetooth and GPS can help streamline deployment, particularly for APRS and location-aware operation.
Upgrade your TX500MP with a compact all-in-one interface that brings together digital modes, APRS, wireless control and portable-ready durability in a single unit. Order the LiNK500MP TNC (MK2) today and build a cleaner, more capable field radio setup.









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