Mobilinkd is still open for business during the COVID-19 pandemic.
While the state of Illinois is on lockdown, we are a home-based
business. We will continue to accept orders as long as the postal
service continues to accept packages. USPS is reporting service
delays, so please expect your orders to take longer to arrive


Mobilinkd TNC2.2

Get the TNC featured in  Jerry Clement, VE6AB's excellent article in the May 2015 edition of QST Magazine APRS In Your Pocket.

Please note that the TNC2 is not compatible with iOS devices.  For iPhone and iPad, please check out the new TNC3.

Designed to turn an HT into an APRS radio.

APRS for the Ham on the go!  This is a highly mobile Bluetooth-connected TNC for use with HTs and other mobile devices.  One cable connects this 1200 baud TNC to the radio.  That's it!  (Cable sold separately.)  Connect to your favorite software on your mobile device, such as APRSdroid or APRSISCE/32.  It will work with any APRS software that speaks the KISS protocol.

The TNC body is a custom injection-molded case.  Very light-weight and durable.  It is designed to handle the rigors of portable and mobile use.  We custom designed the case to keep the TNC small and ultra-portable.

This tiny packet modem is battery powered and can run for 48 hours of continuous use.  Small and lightweight, the TNC measures 80x42x15mm (3.1x1.6x0.6") and weighs in at just 48g (1.75oz).  If you are backpacking and every ounce counts, this is the TNC for you!  And when the battery gets low, it has a built-in charger to recharge the battery in just a few hours.  It can also run continuously plugged in to a USB port for power.

Best of all, the firmware running on the TNC is completely open source and hackable.  The board contains both a boot-loader and an ISP port to upload new firmware to the board.

The TNC supports CSMA (carrier sense multiple access) to respect other APRS users.  The TNC supports both audio sense for squelched audio and data carrier detection for open squelch use.

The TNC2 is designed for use with HTs and for APRS.  For mobile radios or base stations, of for general packet use, including Winlink, please consider the TNC3.

Please download and review the Mobilinkd TNC2 User's Guide.  We do not ship a manual with the TNC in order to keep costs down.

What you get:

  • TNC2
  • Ferrite bead for the TNC cable

What you will need:

Connectors on the TNC:

  • 3.5mm TRRS (4-pole) Audio Connector for audio in/out and PTT.
  • Micro-USB Charging Port


  • Momentary Contact On/Off switch
  • Externally accessible reset switch


  • 900mAh Li-Ion; good for 2-3 days of continuous use.


  • 80x42x15mm
  • 48g


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Shipping Notice

The COVID-19 pandemic has affected global commercial air traffic. This is effecting international mail delivery around the globe. Due to the extreme delays in int'l mail, we are only shipping outside the US via UPS and Priority Express mail.

Orders are typically processed within 48 hours (24 hours for Priority and Express shipments). First Class Mail is $2.95 domestic, $15 international (outside US).

We now offer free domestic shipping on orders over $100!

We offer UPS shipping options for expedited international shipments. There may be assessed an additional customs broker fee, payable on delivery, when using this service.

For our German customers, please consider purchasing from Funktechnik Dathe. They offer excellent local sales, service and support.

We do not ship to Russia or the Ukraine. We have many satisfied customers in those countries using remailers to get their Mobilinkd TNCs.

Customers outside the US are responsible for all local taxes, import duties, tariffs, and fees.

Custom Cables from HamMadeParts

We do our best to stock cables to fit just about any HT on the market.  And we offer a Mini-DIN cable for mobile and base rigs with a standard...