TS-890S_UK_broch.pdf
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1、For DX Enthusiasts HF/50MHz/70MHz TRANSCEIVER BDR 150dB 3rd IMDR 110dB RMDR 122dB *: 2 kHz spacing measurement standard - Receiver frequency 14.2 MHz, MODE CW, BW 500 Hz, PRE AMP OFF * * * 2 Performance Exceeding Expectations. 3 The most rewarding results often take place when faced with the harshes
2、t and most challenging conditions. There are enthusiasts who know this all too well because of their love of DX. KENWOOD has the answer. Achieve results through certainty and not circumstance. Delivered through impeccable receiver and audio performance. This is our offering to you. 396(W)141.3(H)340
3、(D)mm (not including protrusions) 4 DSP FPGA ADC RF BPF Band scope receiver through H-mode Mixer Post Amp Roofing Filters Receive signal system Down conversion receiver BPF ATT PRE AMP 270Hz (Option) 500Hz 2.7kHz 6kHz 15kHz ATT Frequency Spacing kHz 3rd IM Dynamic Range 1012100 dB 20 dB 40 dB 60 dB
4、80 dB 100 dB 120 dB Frequency Offset kHz Reciprocal Mixing Dynamic Range 1012100 dB 20 dB 40 dB 60 dB 80 dB 120 dB 100 dB 140 dB Frequency Offset kHz Blocking Dynamic Range 1012100 dB 20 dB 40 dB 60 dB 80 dB 120 dB 140 dB 100 dB 160 dB Top in its class with three dynamic ranges. Alive and well, the
5、non-tiring KENWOOD tone keeps you listening. RECEIVER Receive performance on a whole other level from narrow bandwidth roofing filters that only full down conversion can provide High-speed scanning with independent band scope receiver 110dB* 3rd intermodulation dynamic range (3rd IMDR) measured unde
6、r punishing 2kHz spacing conditions. 122dB* reciprocal mixing dynamic range (RMDR). 150dB* Blocking dynamic range (BDR) All features deliver top-class receive performance. The high-performance DSP displays its prowess during interference-signal control, sound-quality adjustment, and digital operatio
7、n. Measurement conditions (shared) Frx=14.2 MHz, PRE AMP OFF, BW 500 Hz, CW Vertical axis: Dynamic range (shared) Horizontal axis: Interference signal interval (3rd IMDR), interference signal isolation frequency (RMDR, BDR) Values are measured examples. Photograph shows optional 270Hz roofing filter
8、 installed. 3rd intermodulation dynamic range (3rd IMDR)Reciprocal mixing dynamic range (RMDR)Blocking dynamic range (BDR) The TS-890S uses 8.248MHz 1st IF frequency down conversion for its receive signal system in order to continue the adjacent interference signal exclusion legacy refined in the TS
9、-990S. This means you can use narrow bandwidth crystal filters with passband widths of 500Hz or 270Hz (optional YG-82CN-1) as roofing filters to achieve strong exclusion of unnecessary adjacent signals. The 1st mixer is the H-mode mixer also carried by the TS-990S. Conversion characteristics have be
10、en improved with fine-tuning of input/output matching as well the device used. The configuration of the band scope receiver has changed from the superheterodyne system used in the TS-990S to 1st IF sampling using an A/D converter (14bit/39MHz), and FPGA digital down conversion. This means a change i
11、n scanning method from step FFT to FFT, achieving high- speed updates to the display irrespective of span settings. (*: 2 kHz spacing measurement standard - Receiver frequency 14.2 MHz, MODE CW, BW 500 Hz, PRE AMP OFF) 5 1st Local OSC Phase Noise (14.1MHz) Values are measured examples. HMC829 PLL PL
12、L VCO Div.1 Div.2 19.2 MHz 100 MHz 3218.112 MHz 22.348 MHz 1st local oscillator frequency 0.1 ppm TCXO Frequency Offset Hz 1st Local OSC Phase Noise 1000010000010010001000000 -180 -160 -140 -120 -160 -80 -60 -40 -20 0 dBc/Hz Diverse interference / noise removal features Local oscillator realises sup
13、erior C/N IF filter The speed and quality of KENWOODs renowned IF AGC control Other receiver system features RF ATT(OFF/6/12/18dB) Preamp(PRE1/PRE2) Receive only antenna connector(RX IN, RX OUT) Antenna output connector IF filter shape, AF filter Switching is possible between 3 kinds of IF filter sh
14、apes: Medium/ Soft/Sharp. Switching is also possible for post-demodulation voice- audio between 3 kinds of AF filter passbands: Medium/Wide/ Narrow. Combinations of these settings can adjust the sharpness of the demodulation signal. Audio peak filter This is a narrow bandwidth peak filter operated d
15、uring receive in CW mode. When intelligibility is low due to noise, it has the effect of floating the target signal and increasing intelligibility. The central frequency is linked to the pitch frequency, and can be given a maximum peak gain of +6dB. Notch filter A notch filter that operates in the I
16、F stage. By eliminating strong interfering signals, it allows weak target signals to stand out. Damping range can be switched between three levels: Narrow/Middle/Wide, enabling operation to match interference conditions. Noise reduction function (NR1/NR2) In addition to conventional NR1/NR2 noise re
17、duction, NR1 comes equipped with noise reduction using spectral-subtraction, which focusses on noise reduction in voice-audio system modes. The optimum noise reduction method is applied for each receive mode. Noise blanker A noise blanker reduces crackling, pulse-type noise. The TS-890S includes two
18、 kinds of noise blankers: NB1, which processes analogue signals, and NB2, which carries out digital processing in the IF stage using DSP. Furthermore, selection of NB2 can be made from two kinds of NB with different operating principles. Either NB1 or NB2 can be used depending on noise conditions, o
19、r both can be used simultaneously. Beat cancel function (BC1/BC2) While a notch filter (IF stage) is effective for a single strong beat, beat cancelling (AF stage) shows results on multiple, comparatively weak beats. BC1 is effective on weak beats and continuous beats, while BC2 is effective on inte
20、rmittent beats like CW signals. AGC Quick recovery A function to recover from suppression that happens when pulse noise is included in a receive signal. For IF DSP, transmitter ADSP-21363 clock 332MHz For band scope ADSP-21363 clock 332MHz 1st local oscillator frequency generation when receiving at
21、14.1 MHz Interference signal exclusion is not determined by roofing filters and signal system devices alone. The TS-890S has taken the VCO division of the TS-990S and developed it further, combining a VCO device with high C/N in the gigahertz band and a reference oscillation circuit with superior ad
22、jacent C/N to deliver C/N characteristics unattainable in conventional units. Passband frequency range expansion through LOW-CUT/HI-CUT, WIDTH/SHIFT. Interfering signal removal and desired audio-quality adjustment, as well as more convenient operation in digital mode. Operation with LOW-CUT / HI-CUT
23、 in SSB/AM/FM mode, WIDTH/ SHIFT in CW mode, and WIDTH function in FSK/PSK mode. Change to WIDTH/SHIFT operation as in CW mode also possible in SSB/SSB- DATA mode. Selection of roofing filter (270Hz*/500Hz/2.7kHz/6kHz/1 5kHz) can be automatic to match IF filter passband width or manual to selectable
24、 frequencies. (*270Hz when option mounted) A variety of functions are realised through 32-bit floating-point DSP technology inherited from the TS-990S, including modulation/demodulation in all modes, IF filter, IF-AGC, and removal of interfering signals. Popular for its non-tiring and great-quality
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