What is uTNT V3?

uTNT V3 (USB Terminal Node Controller and Tracker) is a complete APRS platform equipped with 32 bit ARM (60 MIPS) processor, huge FLASH and RAM Memories, able to handle practically any kind of APRS application. There is a list of unique features making uTNT much more advanced from other classical TNCs. There are:

• Enhanced mini USB interface
• Enhanced powering capabilities (using mini USB interface) accepting external power up to 20 V DC
• Enhanced protection against Overvoltage, Over current (shortcut) and reverse polarity
• Enhanced protection against Ground Loops using PPTC technology, preventing any possibility of LAPTOP or Desktop Computer damage
• Internal LIPO 1400 mAh battery with automatic charger
• Internal Standard Radio Modem Chip set, making reception and transmission of data packets quality near to the theoretical.
• Internal chip Potentiometer, allowing you to set up transmission level automatically and without any mechanical intervention to the TNC
• Integrated Internal GPS with internal Patch Antenna,
• Integrated Internal Bluetooth Interface – this is the only TNC over the world with such feature
• RS232 GPS interface, is giving you in fact an additional GPS mouse, useful for any kind of applications

How many uTNTV3 can be connected to a single PC?

It is practically limited only by USB interfaces on your PC or USB Hub.

How many cables do I need to connect uTNTV3 to Transceiver?

You need only one cable between uTNTV3 and transceiver.

How can I use uTNTV3 with my PDA?

Yes, this is unique feature offered only by uTNTV3 over the world – Bluetooth embedded interface. It makes all your PDA application very attractive and simple to use. There are a lot of software running on PDA or SmartPhones for mobile APRS. uTNTV3BTH and uTNTV3GBT are ideal PDA based APRS application.

Do I need any extra powering input for my uTNTV3?

No, your mini USB interface have been specially designed and can accept DC up to 20 V DC, it is also overvoltage/inverse polarity protected.

How I can connect uTNTV3 with my Handheld transceiver?

You need only one cable connecting it with you HT, and that is all. GPS is already inside of uTNTV3, powerful LIPO battery is already inside. Just plug it in and go!

Why embedded USB interface is so useful, or it is better to use RS232 TNC and then use RS232 converter to USB?

All available LAPTOPS are now time equipped only with USB interface, so if you are using your TNC with RS232 interface, you will need anyway to use conversion cable. You will need also to use a power supply, because RS232 TNCs need to be powered by separate source. All that troubles dramatically simplify uTNTV3, by using embedded mini USB gives you a free of cabling, because data and power are all in the same connector.