Bandscope With A Waterfall Display - Kenwood TS-990S In-Depth Manual

07 SOFTWARE
Superimposing a peak of the received signal on the indication displayed on the audio FFT scope by rotating the Tuning
knob enables you to tune in the target signal.
Fig. 108 Displays on the RTTY Sub Screen
The sub screen displays a Lissajous waveform by the X‑Y scope (in RTTY mode) and a vector scope (in PSK mode).
The sub screen placed just above the Tuning knob (main) allows accurate tuning with a waveform observation by either
scope, without a large movement of the line of sight. BPSK and QPSK (excluding PSK63) are implemented for operation
in PSK mode. AFC (Automatic Frequency Control), assisting the tuning, and NET function, applying the automatically
tuned frequency by the AFC for transmission, are also included.
The QSO log can be stored into a USB flash drive, and the content of the log can be reviewed later.
Note:
◆ PSK does not correspond to a QSO with double‑byte characters.
◆ Only BPSK is fulfilled for operation in PSK63 mode.
◆ No FSK frequency shift width can be changed while the RTTY Encode/Decode screen is open.

Bandscope with a Waterfall Display

The TS‑990S is equipped with an FFT spectrum scope capable of high‑speed drawing. This is useful to observe the ambient
status of the receive frequency or the status in a band. Events in either the main band or the sub band can be displayed.
In addition, the TS‑990S is capable of indicating a waterfall display. The waterfall display shows a history of the recent
signals chronologically; hence, band activity can be grasped at a glance, for instance, during the contest. Also, if a DX
station which has been piled up with a number of stations is found, viewing the bandscope and using the TF‑SET function
help you to quickly and exactly tune in a vacant frequency or a frequency of a station which is picked up by the DX station.
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Fig. 110 Waterfall View in the Bandscope Screen
Fig. 109 Displays on the PSK Sub Screen