Decoding/Encoding Of Rtty/Psk - Kenwood TS-890S In-Depth Manual

09 Software

Decoding/Encoding of RTTY/PSK

The TS-890S is equipped with an internal demodulator and decoder (RTTY supports 170 Hz shift only), allowing RTTY
and PSK operations without using a PC. PSK also supports PSK63 (BPSK only). By connecting a USB keyboard,
operations can be efficient and comfortable. To operate RTTY by connecting to a PC or other external device (such as
an RTTY device or an interface for PC connection) without using the built-in encode/decode function, use the USB port
or ACC 2 connector on the rear panel of the transceiver.
Fig. 65 RTTY Communication Screen
Fig. 66 PSK Communication Screen
The encode/decode screen shows an audio spectrum scope which supports tuning. To tune to the target signal, the
indication displayed in the scope and the peak of the received signal simply need to match by using the tuning knob.
By touching the audio spectrum scope screen with a finger, the scope switches to the X-Y scope on the RTTY
communication screen, and the scope switches to the vector scope on the PSK communication screen. Touch again to
return to the spectrum scope.
Fig. 68 Vector Scope (PSK)
Fig. 67 X-Y Scope (RTTY
PSK supports general BPSK, QPSK (excluding PSK63) where error correction can be expected, the AFC function which
supports the tuning operation, and the NET function which also changes the transmission frequency based on the AFC.
By using the communication log function, the communication can be stored in the internal memory or a USB flash drive.
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