TS-990S - KENWOOD

1 HF/50 MHz TRANSCEIVER TS-990 SFor Real DX ersTS-990 SHF/50 MHz TRANSCEIVERL egend and Innovation2In the making for more than twenty years, the ultimate Contest / DX experience is here. KENWOOD s long-awaited flagship model is equipped with the latest technology that embodies an entirely new HF size x in*Projections not TS-900 This all-band SSB transceiver made history with its state-of-the-art TS-930 The world s first Ham Radio HF transceiver equipped with a built-in automatic antenna TS-940 This HF transceiver offered the high dynamic range that won the struggle through the Cycle 22 TS-950 Another world s first, this HF transceiver came standard with a built-in SpeakerSP-990 Input :5 WRepeated innovation turns the tradition into a TS-990 The TS-990S comes equipped with dual receivers for simultaneous reception on different bands, it also features narrow-band roofing filters on the main receiver in a full down-conversion configuration.

2 The TS-990S achieves the highest basic reception performance of any radio in the TS series, through the careful selection of circuits, components and accelerating analysis using triple DSP configuration. Also, thanks to the dual TFT display and superior panel layout, it achieves both comfortable visibility and operability. Our top-of-the-line transceiver is for all radio operators who love MHz TransceiverTS-990 SOutput :200 WNEW5A key point in tapping maximum performance from the 1st mixer in actual operation (say, CW operation) is to prevent the outflow of unnecessary signals, other than the target signal, from the mixer to the subsequent stage. This is because it can tap the maximum per-formance of the digital IF filter using the DSP in the final IF stage.

3 The TS-990S main receiver employs a 1st IF frequency MHz down-conversion format. It achieves superior close-in dynamic range unattainable through conventional up-conversion formats. Even if the interference is a close-in frequency, the receiver maintains a relatively flat dynamic range, which you can tune without losing your target have achieved down-conversion format for all amateur bandsMain Receiverthroughthroughthrough0/6/12/18 dB270 Hz500 Hz6 kHz15 kHz1st MixerRoofingFiltersRF BPFATTPre SelectorPre AmpPost AmpThe horizontal axis shows separation of the target signal by interfering signal frequencies (two waves). At a frequency of 10 kHz,interference 1 refers to reception frequency + 10 kHz, and interference 2 refers to reception frequency + 20 Selector featureTransformer feedback RF AmpAmateur Band RF BPFThe newly developed mixer contributes to achieving +40 dBm IP3 Comparison3rd order Intercept Point characteristicsIntercept Point [dBm]Interfering wave separation [kHz]frx= MHz,PRE AMP OFF,BW 500 Hz,MODE old modelPre Selector 160m (Hz)Amplitude (dB)Overwhelmingly the highest quality receiver in the TS dual receivers facilitate reception on different bands.

4 The main receiver is the highest quality receiver among the TS-900 series, thanks to its down-conversion configuration, newly developed mixer, and five types of roofing filters. This highest quality transceiver will show its true metal in contests, and fierce pile-ups even with high-intensity signals. The TS-990S will surely satisfy any real DX place of the Double Balanced Mixer, which uses the J-FET, we have installed the newly developed Double Balanced Grounded Switch Type in the 1st mixer circuit, which is the heart of the main receiver . The transceiver is also equipped with a pre selector function (works on HF amateur band) that varies its tuning frequency in tandem with the receiver frequency. It effectively dampens interference from strong signals that cannot be minimized through bandpass filters on dedicated amateur bands.

5 Furthermore, we have achieved a +40 dBm class of third-order intercept point for the signal path of the 1st mixer, based on select circuits and components, employing large core toroidal coils for protecting against distortion from large input signals, as well as using relays for the signal newly developed narrow-band High-IP roofing filters show their true value by cutting adjacent unwanted signalsHigh C/N levels are realized by dividing high frequencies using the newly developed VCO frequency division 1st local oscillatorComes equipped with ppm TCXO, which combines high stability and energy savingthroughthroughthrough0/6/12/18 dB270 Hz500 Hz6 kHz15 kHz1st MixerRoofingFiltersRF BPFATTPre SelectorPre AmpPost AmpTS-990S MAIN BAND FRONT-ENDDDS IC AD 9951 ModePhantom loadStart-up timeStand-bypower savingOr less secondsNormalApprox.

6 20 secondsRoofing filter -characteristic example BW=500 HzRoofing filter -characteristic example BW=270 Hz1st MixerCH1 B/R log MAGCH2 B/R log MAGIF BW 100 HzSWP secSPAN 2 kHz10 dB/ REF 0 DB10 dB/ REF 0 DBSPAN 100 kHzCH1 B/R log MAGCH2 B/R log MAGIF BW 100 HzSWP secSPAN kHz10 dB/ REF 0 DB10 dB/ REF 0 DBSPAN 100 kHzTS-990S MAIN Local OSC C/NPhase Noise [dBc/Hz]Offset Frequency [Hz]100-160-150-140-130-120-110-100-90-8 0-70-60-50-40-30-20-1001,00010,000100, MHzPLLPLLAMPAMPD ivider1/NMain reception unit1st Local Oscillator Block / 21/ (other than these, DDS Direct)Main receiver 1st Local Oscillator C/N Main receiver characteristic example (20m/160m)The transceiver uses the down-conversion method on all amateur bands, and features five types of High-IP roofing filter . Narrow bandpass widths selectable are 500 Hz and 270 Hz for CW opera-tion, kHz for SSB and 6 kHz and 15 kHz, which are suitable for AM/FM.

7 These filters are automatically selected in tandem with DSP-based settings. Of course, manual switching is possible as TS-990S Local Oscillator Circuit is an indepen-dent configuration that combines the main receiver and VCO Frequency Division/DDS, the sub- receiver , DDS, transmitter and conventional PLL, with the targeted signal system. The newly developed VCO frequency division format is used for the 1st local oscillator of the main receiver . The device achieves favorable C/N characteristics that rival the DDS direct format, and relatively spurious-free local oscillation signals that are characteristic of the PLL format, by oscillating and dividing the VCO at higher frequencies than the intended frequency. It is possible to convert it to 1st IF in a pure state without leaking the target signal as noise by reducing static noise from the local oscillator and increasing the C/N standard equipment includes a TCXO (Temperature-Compensated Crystal Oscillator), which stabilizes frequencies at ppm as the standard signal source.

8 Unlike OCXO (Oven Controlled Crystal Oscillator), which requires warm-up time, this device can start up quickly even from the power-off position, while maintaining a high level of stability. It is in compliance with European energy-saving standard Lot 6. Power consumption in stand-by energy-saving mode is less than W. A BNC connector on the rear panel provides 10 MHz reference TRANSCEIVER TS-990 SMain receiverTriple DSPTwo attractive features of simultaneous reception on different bands are that you can easily check the condition on other bands and still easily handle already legendary Sub- receiver supports dual spurred by digital technology has revolutionized the KENWOOD ReceiverEven after using narrow bandwidth filters for long periods of time, it is still easy to hear and less tiring to listen to.

9 In addition to introducing AGC control using dedicated DSP, we have further refined the KENWOOD sound and reception sound quality transmitted by radio operators worldwide by innovating the analog AGC unit and installing numerous interference and noise elimination functions. Such innovations have given new life to KENWOOD s legendary sub- receiver features performance that has exceeded its class since going on sale, thus further refining this popular receiver on the TS-590S. Be-cause this is particularly the case on the front end, where it employs circuit configuration that makes down-conversion possible on the leading five ama-teur bands, it can be used in actual operation despite being just a sub- receiver .* The IF bandwidth for 160m /80m/40m/20m /15m bands is (SSB/CW/FSK/PSK) for frequency levels kHz or of 500 Hz and kHz are standard for sub- receiver roofing filters.

10 You can maintain a Roofing filters, 500 Hz, kHzmore or less flat dynamic range even if interference impinges on your reception frequency, thanks to superior close-in dynamic range properties. You can clearly catch signals under conditions made prob-lematic by strong close-in interference occurs on the 160m/80m/40m/20m/15m bands*The sub- receiver incorporates the TS-590S receiver8HF/50 MHz TRANSCEIVER TS-990 SSub receiverKenwood continues to provide quality sound trans-mission that is unattainable through analog circuits. By installing the world-premiere DSP in the TS-950 and achieving IF AGC control on the TS-870, our experience has led to the use of three DSP units, one You can vary DSP filter bandwidth and eliminate ex-tensive interference depending on use and condition. You can operate it as a HI CUT/LOW CUT function in SSB/AM/FM mode, and WIDTH/SHIFT function in CW/FSK/SSB-DATA transmission can eliminate overpowering interference signals with a notch filter and catch intended weak signals.