TS - 450S/AT

HF Transceiver

The formidable TS-450SAT can star in virtually any role with its 100 W transmission capabilities on the amateur HF bands -- in SSB, CW, AM, FM and FSK modes. Compact, lightweight construction makes this HF transceiver particularly suited for DX-peditions. Rugged reliability is matched with leading-edge electronics: optional automatic antenna tuner, AIP system for improved dynamic range, Direct Digital Synthesizer for fine (1 Hz) tuning, and the optional DSP-100 digital signal processor. 

Features at a glance:

• 160 m ~ 10 m amateur band operation 
• 500 kHz ~ 30 MHz general coverage receiver 
• DDS (Direct Digital Synthesizer) and digital PLL system 
• AIP system 
• IF shift function 
• AF notch filter 

TS - 450S/AT: In Detail

AIP system for clearer reception

AIP (Advanced Intercept Point) is a Kenwood-exclusive circuit design that improves the receiver's intermodulation dynamic range to 108 dB. Two RF amplifiers -- one with large gain for enhanced sensitivity, the other with small gain for better intermodulation characteristics -- assure greatly reduced noise floor level. 

Ultra-fine tuning (SSB, CW and FSK modes)

Thanks to the Direct Digital Synthesizer (DDS), the operator can fine-tune in 1 Hz steps -- particularly useful for HF packet and AMTOR data communications. 

User-friendly Primary function

Beginners and mobile operators will welcome the Primary function, which deactivates all but the most frequently used controls to prevent operational errors. 

Heavy-duty cycle design

High-reliability components and a sophisticated cooling system assure circuit stability and make the TS-450SAT sufficiently rugged for heavy-duty cycle use. 

Superior receiver performance and sensitivity

• Triple conversion
  Special circuit design, including triple conversion, enhances sensitivity above 24.5 MHz without affecting two-signal characteristics. This means better results when DXing and QSOing in the 24 to 30 MHz bands. 
• Selectable IF filter with memory
  The operator can choose the ideal IF bandwidth depending on mode, band and QRM conditions. The setting can be stored in memory for later recall. 

First-class interference reduction

• IF shift function
  This moves the IF passband away from interfering signals while maintaining focus on the target signal, thus maximizing gain and signal-to-noise ratio. 
• AF notch filter
  A tunable AF notch filter with sharp cutoff characteristics minimizes undesired audio frequencies with surgical-strike precision. 
• Dual-mode noise blanker
  NB-1 eliminates short duration pulse-type interference such as ignition noise, while NB-2 rejects longer duty cycle noise, such as "Russian woodpecker" interference. 

High-caliber CW operations

• Reverse mode
  In reverse mode reception is moved away from an interfering signal, so the operator can tune in the target signal from above or below. 
• Pitch control
  Dedicated CW operators will appreciate this feature which permits the CW pitch to be varied in 50 Hz steps, from 400 to 800 Hz. 

Impressive split-frequency operations

• TF-SET and "Delta" F keys
  Split-frequency operations are greatly facilitated by the TF-SET (transmit frequency set) key, which can be programmed with the "Delta" F key so that the frequency difference is indicated on the numeric display. 

100 memory channels with multi-scan functions

There are 100 memory channels -- all battery-backed and non-volatile -- for storing transmit and receive parameters such as frequency, mode, filter setting, AIP on/off. Of these, the upper 10 memory channels can also be used to hold both limits for the programmable band scan, programmable VFO and store mode, and related data. 

Three different scan modes

The operator can scan any or all 100 memory channels, skipping selected channels with a lock-out feature. Group scan divides the 100 channels into 10 groups of 10 for separate scanning. And programmable band scan automatically covers from channel 90 through 99 within the predetermined band limits. 

Simple data transfer between two transceivers

If two Kenwood transceivers are hooked up for dual-receive or master/slave operations, data can be transferred automatically via a special cable. 

Optional automatic antenna tuner

An optional antenna tuner with microprocessor control automatically establishes the optimum antenna match between 20 and 150 ohms in the 80 through 10 meter bands. A warning beep sounds if a match cannot be found. 

Optional digital signal processor (DSP-100)

The DSP-100 digitally processes both incoming and outgoing signals for maximum intelligibility with minimum bandwidth. In SSB operation, unwanted sidebands can be effectively suppressed, while in CW mode the rise and decay times of CW waveforms can be tailored for optimum clarity. 

Other Features:

• Digital bar meter and multi-function display 
• All-mode squelch circuit 
• All-mode RF output power control 
• Switchable AGC circuit (SLOW/FAST) 
• Direct frequency entry via numeric keypad 

Dimensions (W x H x D)

• 270 x 96 x 328 mm (10.6 x 3.8 x 12.9 in.)