|
A variety of functions for easy operation
New Split function enabling quick setting "Direct frequency entry, Direct band selection" 
In addition to conventional split frequency setting methods, the TS-990's proven split setting functionality has been included. A long press of the SPLIT key, when making a 2kHz up setting, will enable quick setting by pressing "2" on the keypad. Furthermore, in simplex operation with just XIT on, the XIT frequency can be changed with TF-SET. The keypad keys are now band-direct keys. Each band has 3 memories, enabling quick call-up of usually-used frequencies.
PC control through USB connectivity
PC control of the transceiver and transceiver audio transmission have been made possible through a USB cable with the inclusion of a dedicated PC-control USB connection terminal. 
Note: Delays may occur when using USB audio. We recommend using USB audio in situations where time lag is not an issue.
Remote control of the TS-590SG via computer
Using the ARCP-590G (radio control program), virtually all functions can be controlled via a computer. Changing various function settings and managing memory channels can all be done from your PC. The ARCP-590G also enables the recording and erasure of voice messages.
Voice guide and recording functions (option) 
VGS-1:Voice guide and storage unit enables voice guidance for frequency, key operation, settings, etc., and recording/playback of messages. A Manual Mode, in which vocalization takes place only when buttons are pressed, has been added to the voice guidance. Either English or Japanese can be selected for the voice guidance language.
-Voice memory: max. 4 channels (recording time: 30 seconds each for CH1 & CH2, 15 seconds each for CH3 & CH4)
-Constant receiver recording: 30 seconds. (1 channel)
Memory/Scan functions
Easy-to-use, diverse memory functions
The transceiver features a memory that can store up to 120*1 frequency memory channels, with each able to be given a memory name of up to 8 letters. Also included are the memory scroll function, which can be used to check memory data without changing operating frequency, memory channel copy, which enables the copying of memory data to another channel, single channel memory clear, memory lockout, memory shift, and the ability to change memory data/frequency temporarily. Other features include the Quick Memory function, which can store up to 10 channels*2 on the fly, and the capacity for temporary changes to memory shift and memory data.
*1: Including specified range memory and expanded memory channels.
*2: 3, 5 or 10 channels can be selected.
Multiple scan functions
Program scan, memory scan, group scan, subtone scan and CTCSS scan are included among the many scan functions available. The transceiver also offers program slow scan, which automatically reduces the scanning speed around any frequency of special interest.
KENWOOD SKY COMMAND SYSTEM II
Enables full-duplex operation with improved functionality such as visual confirmation of HF frequency on the LCD panel. Control via TNC (AX.25) enables more access to HF functions: XIT, mode switching, split-frequency operations on/off, memory shift, and frequency step selection. The transporter sends out its pre-programmed call sign via CW every 10 minutes.
Notes:
- KENWOOD SKY COMMAND SYSTEM II uses a pair of TH-D72E/ TM-D710E/TM-D710GE transceivers.
- Refer to applicable amateur radio regulations to check whether you are permitted to use this function.
Other features
RX:
- ATT, pre-amp
- RF gain adjust
- AF gain
- SQL level set
FSK:
- Basic RTTY operation settings (keying polarity, shift width, high/low tones, reverse mode)
FM:
- FM Wide/Narrow switching for transmission/reception
- Repeater subtone
- FM signalling (CTCSS, cross-tone)
DATA:
- SSB-DATA/FM-DATA/AM-DATA transmission mode-compatible. Transmission output settings and transmission sound source (front/rear) selectable for data transmission.
- Variable DATA modulation/demodulation level
- Selectable DATA modulation line (ACC2/USB)
- DATA VOX
Accessory connectors:
- ACC2 connector for DATA communication
- Remote connector compatible with linear amp control (built-in vacuum tube linear amp control relay, selectable transmission attack delay)
External connectivity:
- Compatible with external antenna tuner (AT-300*)
- DX Packet Cluster tune (when connected to TM-D710E/TM-D710GE/TH-D72E)
Other:
- Power-on message (message of up to 8 alphanumeric characters can be input for display when power is switched on)
- Split data transfer using COM port
- Firmware updates
- Adjustable long-keypress timing | 
NR2 
The aluminum die-cast chassis is combined with a large heat sink to effectively dissipate heat, minimising the rise in temperature in the final section during continuous transmission sessions. This heavy-duty design is capable of withstanding grueling conditions typical of contests or long hours of hard operation. 
