User manual KENWOOD TS-44X

[. . . ] In AM signal (CW) mode, the high-cut frequency can reduce interInterfering signal (SSB) ference by controlling the IF pass bandwidth -- useful for receiving shortwave broadcasts. In CW mode, the WIDTH funcWIDTH tion is supplemented by Desired center frequency shift, signal (CW) allowing adjacent signal Interfering interference to be tuned Interfering signal signal (SSB) (CW) out. The WIDTH function also provides noise reduction capabilities in FSK with 4 steps available: 250, 500, 1000 and 1500Hz. [. . . ] The interfering beat is removed far more accurately than in conventional analog systems, and Auto Notch will even track changes in the beat signal (tracking speed can be varied in 5 steps). Hi-cut slope tune Interfering signal (SSB) Lo-cut slope tune Desired signal (SSB) Interfering signal (CW) IF AGC The digital AGC circuit (main band only) delivers very fast release characteristics, surpassing even the best analog designs. You can select a custom release time (20 steps) for each mode, except FM. SSB slope tune HF Band 50MHz Band 440MHz Band 144MHz Band 1200MHz Band AF Digital Signal Processing DSP is also executed at the AF stage, offering Beat Cancel and CW Auto Tune functions. It also enables you to achieve remarkable noise reduction and apply custom enhancements to your transmitted voice. Beat Cancel Automatic Beat Cancel, available for the main band (SSB and AM modes), immediately eliminates multiple beats interfering with a desired signal. It works well in combination with IF Auto-Notch (SSB). Beat Canceled Noise Reduction There are 2 types of noise reduction: LEM (NR1) and SPAC (NR2). LEM (Line Enhancer Method) -- available for all modes on the main band and FM/AM on the sub band -- automatically forms a filter shape around the target signal for a custom, dynamic noise reduction capability. The degree of enhancement can also be set manually for mainband use. The SPAC (Speech Processing/Auto Correlation) Line Enhancer Method Formed filter function utilizes a special staNoise Noise tistical/correlation algorithm to pull out weak signals that Signal are buried deep in noise. SPAC Method Although available for all Extract signal modes on the main band, it's from the noise Noise Noise especially useful for tough CW conditions. The correlation time setting can be adjusted in 10 steps between 2ms and Signal 20ms. Beat Beat Target signal Manual Beat Cancel A new Manual Beat Cancel function, which operates as a manual AF notch, can be used in all modes -- though it is particularly effective in CW. 10. 0 20. 0 30. 0 40. 0 50. 0 60. 0 70. 0 80. 0 Frequency [Hz] -500 -400 -300 -200 -100 0. 0 0 -100 200 300 400 500 Attenuation [dB] TX Audio Shaping You have 3 ways to tailor audio quality with DSP: the TX/RX equalizer (SSB/FM/AM), TX filter bandwidth (SSB/AM), and speech processor (SSB/FM/AM). control terminal ACC2 REMOTE terminal terminal Enhanced Operating Ease Automatic Antenna Tuner The built-in antenna tuner -- which also operates when the radio is in receive mode -- covers amateur bands from 1. 9 to 50MHz, with rapid tuning lock when using presets. Menu System All of the power and functions of the TS-44X/2000X/ B2000 can be accessed through the menu-driven display interface on the front panel. You may also activate the Quick Menu feature to access only your most commonly-used functions. Other Features Large, amber-colored backlit LCD Backlit front keys Compatible with optional DRU-3A digital recording unit 300 Memory Channels This transceiver provides a bank of 300 memories (plus 1 call channel for each band), with 290 assignable by name and 10 available for programmable scan. The scroll function lets you browse memory contents, memory channel copy sends the contents of one channel to another, lock-out memory changes the scan map to exclude certain channels, and memory shift alters the frequency stored in a channel. In addition, there are 10 `quick' memories to capture a current operation on-the-fly -- ideal for contest operation. Key operation announcement with optional VS-3 voice synthesizer (option) Programmable function keys Transverter (displays up to 19. 99999GHz) RF gain control All-mode squelch Simple visual scan Auto simplex checker DTMF remote control Noise blanker Auto repeater offset (144/1200MHz) Built-in keyer Multiple Scan Functions A full range of scan functions is provided, including MHz scan, memory scan, and call scan. Group scan mode covers all 300 memory channels in groups of 10, and programmable band scan will search a frequency spread between two VFO settings (the scan-hold function stops the scanning for 5 seconds). A new feature is programmable slow scan, which will automatically slow down to check a frequency range you're interested in. As well as varying scan speed, you can choose either time-operated (TO) or carrier-operated (CO) busy-stop-resume. Auto power-off Kenwood Skycommand System II Plus The TS-44X/2000X/B2000 is fully equipped for Kenwood's Skycommand System II Plus. With just a handheld transceiver you can relax in your garden while DX'ing from your shack. Alternatively, you could enjoy HF access via the multibander in your parked car while taking in a baseball game. [. . . ] Conventionally two extra transceivers are required for KSS operation -- a Commander and a Transporter -- but the TS-44X/2000X/B2000 has Transporter functions built in. This means you can operate it remotely with a single mobile or handheld unit, such as the TH-D7A or TM-D700A, transmitting control signals to the Transporter, which also relays your voice to the HF radio. In return, HF signals are transmitted back to the Commander. [. . . ]