Kenwood TS-990S manual

The Kenwood TS-990S features a dual TFT display and dual receivers cover the HF amateur bands plus 6 meters. It also features narrow-band roofing filters on the main receiver in a full down-conversion configuration. The TS-990S achieves the highest basic reception performance of any radio in the TS series, through the careful selection of circuits, and components, and accelerating analysis using a triple DSP configuration. RF power is adjustable from 2 to 200 watts. This radio features a built-in automatic antenna tuner and a built-in AC power supply. It comes equipped with a serial port, USB port, and Ethernet port.

The Kenwood transceiver manual is a useful resource for learning about all the features and functions of your device. Reading the manual can help you discover new features and get the most out of your device. It can help you troubleshoot problems, customize settings, and optimize its performance. With proper usage, there is less risk of damage, and you’ll learn how to get the most out of it.

Manual for the Kenwood TS-990S

To access the user manual for the Kenwood TS-990 series, follow this link, which will bring up a search box. enter TS-990, and a table with manuals in various languages will be presented.

Please be sure to read and save the entire manual before using or installing your TS-990S. Misuse may damage the unit or cause harm or serious injury. Read this manual in its entirety before using the unit, and save it for future reference.

Kenwood’s top-tier TS-990S offers high performance and an extensive list of features. Its settings are highly customizable, and it looks and sounds terrific.


  • Down-conversion for all amateur bands on main RX
  • A newly developed mixer achieves 40dBm IP3
  • Narrow-band High-IP roofing filters
  • Comes with 0.1 ppm TCXO
  • DSP for the main receiver, sub-receiver, and band scope
  • Advanced AGC control
  • Extensive interference and noise reduction functions
  • Built-in automatic ATU
  • Dual TFT displays
  • USB Firmware Updates
  • Data mode supported by external I/O switching
  • Transmit and receive DSP equalizers
  • Two USB Ports on the front panel
  • Voice guidance/Recording function
  • Remote control from your PC

General details:

  • TX Frequency range: All Amateur bands 1.8 to 54.0 MHz
  • General coverage RX: Continuous 30 kHz to 60 MHz
  • Modes: CW, SSB, FSK, PSK, AM, FM
  • Stability: Plus/minus 0.1 ppm 32 degrees F to 122 F
  • Antenna impedance: 50 ohms
  • ATU range: 16.7 to 150 ohms
  • Line voltage: AC 120 V (60 Hz)
  • Power consumption: TX: 720 VA, RX: 120 VA (no signal)
  • Temperature range: 32 degrees F to 122 F
  • Dimensions in inches: 18.11 W x 6.50 H x 15.75 D

Transmitter Details:

  • Output power: CW/SSB/FSK/PSK/FM (AM); 200 W (50 W)
  • Modulation SSB: Balanced, AM: Low Power, FM: Reactance
  • Spurious emissions: HF (Harmonics) -60 dB or less, HF (others) -50 dB or less 50 MHz -66 dB or less
  • Carrier suppression: -60 dB or less
  • Sideband suppression: -60 dB or less
  • Microphone impedance 600 ohms
  • XIT variable range: Plus/minus 9.999 kHz
  • Maximum frequency deviation (FM) wide: Plus/minus 5 kHz, (NFM): 2.5 kHz
  • Transmit frequency response: Within -6 dB (300 to 2700 Hz)


  • Circuit type: Double or Triple Superheterodyne (depending on band/mode)
  • Sensitivity (TYP): SSB, CW, FSK, PSK (S/N 10 dB); 0.2 uV (1.705 to 24.5 MHz), 0.13 uV (24.5 to 54 MHz)
  • Sensitivity AM (S/N 10 dB): 2 uV (1.705 to 24.5 MHz), 1.3 uV (24.5 to 54 MHz)
  • Sensitivity FM (12 dB SINAD): 0.22 uV (28 to 30 MHz), 0.22 uV (50 to 54 MHz)
  • Image Rejection HF/(50 MHz): 70 dB/(60 dB) or less
  • IF Rejection Ratio 70 dB or less
  • SSB Selectivity 200 to 2800 Hz: 2.4 kHz or more (-6 dB), 4.4 kHz or less (-60 dB)
    CW, FSK, PSK Selectivity (WIDTH: 500 Hz): 500 Hz or more (-6 dB), 1.2 kHz or less (-60 dB)
  • AM Selectivity: 100 to 3000 Hz: 6.0 kHz or more (-6 dB), 12 kHz or less (-50 dB)
  • FM Selectivity: 12 kHz or more (-6 dB), 25 kHz or less (-50 dB)
  • XIT variable range: Plus/minus 9.999 kHz
  • Notch filter attenuation: 60 dB or more (Auto), 70 dB or more (Manual)
  • Beat cancel attenuation: 40 dB or more