UA9OV TrueTTY (formerly TrueTTY)

Although the radio may be a rather old technology, it is still used in a variety of purposes, especially when it comes to communication or remote control. On the other hand, as you would expect, they can be integrated with computers as well, so that you can send and receive data to various devices using special software applications.

Use your sound card for radio communication

UA9OV TrueTTY is a software utility designed to help you achieve and manage radio communications on your personal computer, by making use of your sound card and a transceiver. In addition, it is also capable of decoding certain type of signals, as well as work with a simple PTT-control circuit, handle macros and integrate with data logging software.
The application presents you with a rather clunky user interface when you first execute, but all of the displayed information is vital, as you find out after a few minutes of navigating around the utility. Thus, you can view the currently selected signal and a peak detector, as well as the frequencies of the RX filters, all of which can be of use when you are fine tuning your device.

Change between modes and transfer speeds

In order to be useful in as many situations as possible, the utility is capable to work under a wide variety of modes, including RTTY, QPSK-31, DTMF and AMTOR-ARQ. Depending on the chosen operating mode, you can limit your ability to apply filters or change the frequency, since they do not all allow the same parameters.
As for the transfer speed, it is expressed in bauds and it ranges from 45 to 1200 bauds, depending on the type of device and the connection type. Furthermore, you can also apply filters, such as narrow, wide or optimal, as well as zoom in and shift the frequency value according to your necessities.

A reliable digital radio decoder

In the end, UA9OV TrueTTY is a practical and useful application, despite the fact that it is not very friendly with beginners. Hence, although it floods you with technical terms and complicated setup menus, the utility can be a valuable tool in the hands of an experienced user.