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Sub band display
The 3.5" TFT sub band display is located above the main dial, which not only reduces
eye movement in reading the frequency, but also allows you to monitor
the target signal itself by displaying the demodulated audio spectrum. In addition, filter
effects can be displayed on the easy-to-see sub band display, allowing for intuitive
operation. You can switch the sub band display between the four different view modes
below according to your intention.
Single Frequency Display With Virtual Dial
FSK mode
2-6. Control
New frequency function
You can use the frequency function that switches legacy VFO A/VFO B by switching
the main and sub band. Turn the sub band reception on and off using the RX key on
top of the main dial, and switch between simplex and split using the TX key. A single
glance at the LED lighting lets you know the current status.
New split function
Just as with the legacy series, you can add functions via M>S and M/S giving a dual-
action quick-split set up.
Memory channel
Memory for a maximum of 120 channels is available. In addition to the repeater
frequency, you can also preset beacons and transmission stations. You can easily call
up the states of simultaneous dual reception using the dual channel memory.
USB port
The front panel is equipped with two USB ports (A/B) for keyboard or USB flash drive.
Switch to update mode and insert USB memory into the USB-A port on the front panel,
and the update will automatically begin. In addition, access your USB memory from
your PC by connecting your PC via USB cable to the USB-B port on the rear panel,
switch to update mode, and a folder named TS-990 will appear on your computer.
External I/O interface
There are a variety of I/O interfaces, including the microphone jack, analogue audio
input and output, USB audio interface, and optical digital interface. By combining DATA
6
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