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Micro-Trak MTT4B 
The Byonics Micro-Trak Model MTT4B is an 8-watt frequency agile APRS transceiver that operates programmably
within the two meter Amateur radio band. This design is intended to provide an easily implemented
full-function APRS device, and can act as a tracker, digipeater, telemetry transmitter, or as an
interface for compatible weather stations or your own unique applications. The MTT4B has two 'built-in'
telemetry channels, for monitoring the supply voltage and temperature, and 5 additional pins which
may be used for 0-5 volt telemetry or logic-level controls for various applications.
A 10 pin output is designed for plug and play operation with the Byonics TinyTrak4 LCD display adapter,
which will allow you to see other stations as text, program many functions live through an optional
PS/2 Keyboard, and send and receive APRS messages! The MTT4B has been designed primarily as a mobile
transceiver, although it is just as capable as a fixed station digipeater. The unit must use a proper
mobile or base station antenna, and will not operate properly with 'rubber duck' antennae.
Two separate serial ports are assignable to any supported capability, for example, GPS NMEA serial data,
waypoints, text, KISS, etc. This allow you to use the device as a simple tracker and/or digipeater, as
well as with a Display GPS, PC running mapping software, or nearly any device capable of sending serial
data over a wide Baud rate. (Although either serial port can be used for configuration, installing new
firmware requires a connection to Port A, via a 2.5mm 'Kenwood' programming cable, available through
Byonics in either DB-9 or USB serial cables)
Ordering: The included MTT4B interface cable is available with a Powerpole connector. Just request the Powerpole connector when you submit your callsign via the order notes or follow up email, otherwise we will ship with the cigarette lighter plug. 
MTT4B - $250.
Includes the interace cable, but does not include antenna or GPS.
MTT4BT - $280.
MTT4B with built in bluetooth. See Manual addendum below. Includes the interface cable, but does not include antenna or GPS.
MTT4B-40 - $280.
MTT4B with a 40 watt amplifier instead of 8 watt.
MTT4BT-40 - $310.
MTT4B with built in bluetooth and a 40 watt amplifier instead of 8 watt.
MT-AIO USB Programming Cable - $20.
This optional USB cable is used to configure a MTT4B via the 3/32" serial jack.
It is a USB A to 3/32" stereo plug that internally contains the needed USB to serial adapter.
Drivers can be found HERE.
MT-AIO Serial Programming Cable - $15.
This optional USB cable is used to configure a MTT4B via the 3/32" serial jack.
It is a DB-9 female to 3/32" stereo plug that can be used with a computer serial port or USB-to-serial adapter. Documentation: Notes:
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