07 Software; Processor Connections; Dual Tft Display; Main Screen - Kenwood TS-990S In-Depth Manual

07 SOFTWARE

The TS‑990S has nine CPU and DSP processors. The processors are respectively mounted in the control unit, DSP
unit, digital unit, and other units, and the processors jointly operate to realize a variety of functions in the TS‑990S. This
chapter describes the functions of the TS‑990S and convenient ways to use functions, mainly focusing on the TS‑990S
software.

Processor Connections

The processors built for the TS‑990S are carefully chosen and are capable of performing appropriately and sufficiently
by purpose or utilization. Even if processing redundantly takes place while there are heavy loads imposed on the
processors, it does not affect any user manipulation or processing operation. The processors are placed in their
respective dedicated units, and mutually communicate through UART (Universal Asynchronous Receiver Transmitter)
and the SPI bus. According to the role or purpose assigned, appropriate transmission rates and communication
methods are applied.

Dual TFT Display

To efficiently display the multifarious functions and information of the TS‑990S, the TS‑990S has two TFT displays.
Segment‑type LCDs used on conventional transceivers are mainly intended to display the operating frequency, and
the status indications of functions, such as the On/Off state of each functions. Therefore, the segment‑type LCDs
cannot appropriately display various status indications and other information, such as the waterfall display, a text string
demodulated from the RTTY and PSK signals, that are changing every moment following the operating environment and
the receive and transmit state. However, the TS‑990S with its TFT displays has realized such capabilities.
Two types of bandscopes, which are a significant feature of displaying, have their respective tasks. The 7‑inch main
screen is for monitoring the status of the band and ambient status of the target signal. The 3.5‑inch sub‑screen is for
monitoring received signals.

Main Screen

On the main screen, basic information such as operating frequency indications, meters, and icons of respective
functions, which indicates the active or inactive state, are functionally placed at the top. Also, the configuration screen for
respective functions, the RTTY/PSK Encode Decode screen, the Memory Channel List screen, and the Bandscope
screen for monitoring the band status are located on the lower part of the screen. The screens can be switched as
necessary.
Information displayed on the main screen can be transferred through the DISPLAY connector (on the rear panel). With
an external monitor connected, you can easily determine the delicate waveform motions, such as in a waterfall display.
The main screen collectively displays a variety of information. For quick visibility and easy identification, the placement
and coloring of the indications are carefully examined and devised.
Fig. 87 Example of a Waterfall View
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Fig. 88 Example of an Equalizer View