Kenwood TS-590S manual

Distinctive P erformance TS-590S HF/50 MHz ALL MODE TRANSCEIVER[...]

Cover 2 TS-590S This in-depth manual is intended to exp lain the feat ures of the TS-590S and it s convenient use. We hope that this manual, as a gen eral HF transceiver guide will be of your benefit, to whoever re ads this manual, whether you have al ready purchased a TS-590S, are thinki ng of purchasing of this p roduct, or are interested in HF t[...]

TS-590S I CONTENTS 1 RECEPTION ........... .......................... 1 1.1 Type of Conversion ..................... ....... 1 1.2 Down Conversion ............ ................... 3 1.3 Up Conversion......................... ........... 8 1.4 RX Auxiliary Circuits .................... ....... 9 2 TRANSMISSION ............................. 11 2.1 Ke[...]

CONTENTS II TS-590S 8.2.2 Controllin g TS-590S from a PC using the USB Connector .......................... 53 8.2.3 Controllin g TS-590S from a PC using the COM and ACC2 connectors (microphone and spea ker connecte d to the PC to be used) .............. ............. 53 8.2.4 Controllin g TS-590S from a PC using the USB connector (microphone and s[...]

TS-590S CONTENTS I At the end of September , 2010 , the TS-590S, a Kenwo od HF band amateur radio transc eiver was launched af ter the 7-year l ong silence since the re leasing of TS-480S . As implied by this mode l name, TS-590S is the “legitim ate successor to the TS-570S”. The product ca tegory taken over from the TS-570S b y the TS-590S was[...]

II CONTENTS TS-590S TS-590S was planned as the “legitimate successor t o the TS-570S” a fter 14 years or more of time have elap sed since the first market appe arance of TS-57 0S in 1996. TS-590S is ti tled with the 50 0s model number wit h the TS-570S bu t, needless to say , we started the developmen t as a totally new transceiver . First, let[...]

TS-590S CONTENTS 1 1 RECEPTION Receive performance is one of the key ind icators that is used to evaluate a transceiver . And , above all, the cap ability to protect agains t interference fr om adjacent signals close to the target signal is of the utmost importance. T o attain this goal, a circu it with a good larg e signal behavior characteristic [...]

1 RECEPTION 2 CONTENTS TS-590S Figure 1-1 Dual-m ode Conversion Freq uency Configuration First, let us begin with expla nation about the up-c onversion p ath. In the up-conver sion p ath, double-hea ded arrows are shown at each st age pointing in both directions. This means a tra nsmit signal as well a s a receive signa l is processed in th e up- c[...]

1 RECEPTION TS-590S CONTENTS 3 Figure 1-2 Block diagram: Down Conversion Figure 1-2 describes the circu it configurat ion ar ound the first mixer of the do wn-conversion path, showing the relatio nship s between frequencie s upon receipt of a 14 MHz signal. The signal from the ante nna passe s the RF BPF or LPF (as a rece ive LPF , it divides the f[...]

1 RECEPTION 4 CONTENTS TS-590S The receiver mixer circuit is a quad mixer consisting of four 2SK1740 JFET s. The mixer circuit achieves superio r characteristics th anks to the revision of I/O port matching and th e optimiza tion of biases . With the signal provi ded by the first local oscillato r , the RX sign al is converted to 1 1.374 MHz (first[...]

1 RECEPTION TS-590S CONTENTS 5 • Durin g the transmi ssion: The up-conversion conf iguration is always u sed in all modes and bandwidths. During th e transmission in SS B mode, the p ass bandwid th is determ ined by the filter settin gs (digital filter of the DSP) selected in the menu mod e. The pass bandwidth of the filter in the analog stage is[...]

1 RECEPTION 6 CONTENTS TS-590S Following is a grap h that provid es the comparis on between the performances of roofing filt ers. Figure 1-5 Comp arison of Bandp ass Characteristics of MCFs Figure 1-5 comp ares the band p ass character istics of a roofing filter of center frequency 73 MHz (gray line); and the roofin g filters of the center freque n[...]

1 RECEPTION TS-590S CONTENTS 7 Measurement Conditions: The abscissa axis shows the distance from the int erfering signal. For ex ample, it repre sents that at the point of 10 kHz the re ceive freque ncy is 14.200 MHz and two inte rfering signal s of 14.210 MHz and 14.220 MHz are give n. The orange line shows th e result of TS-590S and the gray line[...]

1 RECEPTION 8 CONTENTS TS-590S Difference of characteristics due to th e pass bandwidth in the roofing filter can be viewed in graphs in Figure 1-5 and Figure 1-6. So , let’ s see the char acteristics of the u p-conversion sy stem in which the same front end configurati on is used as previou s models. W e will explain u sing the measureme nt resu[...]

1 RECEPTION TS-590S CONTENTS 9 T ypical built-in RX auxi liary circuit s include the va riable pass bandwidth circuit, notch filter and noise blanker (NB). In modern HF transceivers, most of these auxiliar y circuits (=auxiliary functions) are made possible by an arithmetic proc ess of the DS P . As well as the TS-590S, only t wo auxiliary circuit [...]

1 RECEPTION 10 CONTENTS TS-590S Following is a fig ure that represen ts the TX-RX UNIT that has the circuitry conf iguration in q uestion. By deta ching the lower case, yo u can access the j umper connectors CN101 through CN103. Figure 1-8 TX-RX UNIT 1) Raising sensitivity in the BC ban d: Remove the jump er for CN103 and insert the jumper into CN1[...]

TS-590S CONTENTS 11 2 TRANSMISSION The tradition of high quality audio technolog y that users rely on Kenwood to de liver is produced by combining ana log and digital technologies t hat Kenwood ha s nurtured thus far . The DSP controls modulation and determi nes the sound q uality an d analog cir cuits convey and ampl ify the signal cleanly . The f[...]

2 TRANSMISSION 12 CONTENTS TS-590S Figure 2-1 T ransmit IMD Characteristics Figure 2-2 T ransmit Spurious Characteristics[...]

2 TRANSMISSION TS-590S CONTENTS 13 TS-590S has a built-in high-speed rela y-controlled a ntenna tuner that was first employed in the TS-570S. In contrast to th e variable capacitor type anten na tuner , it employs a small an d lightweight relay to achieve a sufficient matc hing range and a fast tu ning operatio n with digit al control. The control [...]

2 TRANSMISSION 14 CONTENTS TS-590S Figure 2-3 Timing chart (1 or 2) Figure 2-4 Timing chart (3) Menu N o. 53 o r N o. 54 "1 or 2" 10 ms KEY RX RL Switch RF Power AF TX Menu N o. 53 or N o. 54 "3 " 25 ms Switch RF Power AF KEY RX RL TX[...]

2 TRANSMISSION TS-590S CONTENTS 15 TS-590S is equipped with a DRV terminal that fo rme rly was provided only for high-end transceive rs. The output level of th e DRV terminal is about 0 dBm (1 mW) and can be d ecreased to arou nd 1/20 depending on the setting o f the transmit power . T o reduce th e output leve l further , you can adjust the transm[...]

2 TRANSMISSION 16 CONTENTS TS-590S Figure 2-6 Output Characteristics of DRV T erminal at 14.175 MHz and -10 dBm Figure 2-7 Output Characteristics of DRV T erminal at 14.175 MHz and -20 dBm[...]

2 TRANSMISSION TS-590S CONTENTS 17 Figure 2-8 Output Characteristics of DR V T erminal at 136 kHz and 0 dBm Figure 2-9 Output Characteristics of DRV T erminal at 136 kHz and -10 dBm[...]

2 TRANSMISSION 18 CONTENTS TS-590S Figure 2-10 Output Characteristics of DRV T e rminal at 136 kHz and -20 dBm[...]

TS-590S CONTENTS 19 3 LOCAL OSCILLA T OR In the first local oscillator , instead of the convention al PLL/VCO system, a 14-b it DDS (direct digit al synthesizer) is adopted to provide the output sign al directly to the mixe r . During the down conversion, the oscillator fre quency is lower than that in up-con version operation, and, therefore, the [...]

20 CONTENTS TS-590S 4 DSP Figure 4-1 describes the DSP *1 of the TS-590S and periph eral devices co nnected to the DSP including ADCs *2 and DACs *3 . Figure 4-1 TS-590S DS P and Peripheral Devices *1 DSP: digital signal processor *2 ADC: A/D converter *3 DAC: D/A converter The heart of the signal pr ocessing function is a 32-bit floa ting point TM[...]

4 DSP TS-590S CONTENTS 21 As for ADCs and DACs, the best combin ation of models are sele cted to suit the type of si gnal processed, especially f or the IF input se ction, high-perfo rmance ADCs de signed for high-e nd audio with dynami c range of 1 14 dB are used. Both the ADCs and DACs have two analog in put/output channels per device and the DSP[...]

4 DSP 22 CONTENTS TS-590S Figure 4-3 Control Block Diagram of IF-AGC In the attack control circuit, in addition to the n ormal fast gain shift function , we have added a technology to cap ture the signal trans formation in an overs hoot form and to apply mo derate gain to the signal in order to le ssen the audible clicks. As an exampl e, Figure 4-4[...]

4 DSP TS-590S CONTENTS 23 TS-590S also incorp orates rich an d powerful interference elimination functions that work within the IF-AGC loop (Figure 4-3). The previous model (TS-2000S) already featured a digi tal IF filte r and the auto notch fi lter function, and in the TS-590S, a digit al noise blank er (NB2) and a manual notch filter fu nction *1[...]

4 DSP 24 CONTENTS TS-590S Figure 4-6 Result s of Amplitude and Frequen cy Analysis of the Digit al IF Filter (CW Mode) 0 Hz in the center that corr esponds to the pitch frequency The following table provides possible cho ices of the filt ers and the default value (shown in bold ) for respective modes. 4.3.2 T ypes of Digit al IF Filters SSB Mode LO[...]

4 DSP TS-590S CONTENTS 25 The manual notch filter is a notch filter with a freq uency that can be sh ifted with the no tch knob. The auto notch fil ter is a notch filter tha t automatical ly tracks a beat frequency with an adaptive filter technique. Bo th notch filter s have the a ttenuation of more than 60 dB at the center frequenc y . Fi gure 4-7[...]

4 DSP 26 CONTENTS TS-590S There are two setting s on the manual notch filter: Normal and Wi de. Y ou can choose one of two bandwid ths for the notch filte r (Figure 4-8). For a simp le beat frequency , Normal is effe ctive. If there is an interfering SSB signal, or in the event the t arget signal is al so trimmed by LO CUT/ HI CUT , a Wide setting [...]

4 DSP TS-590S CONTENTS 27 For the demodulation o f the RX signal in SSB, CW , FSK and SSB-DA T A modes, we have em ployed the proven PSN (Phase Sh ift Network) design again. In the previo us models (TS-2000 S and TS-870S) , the selection of th e PSN’s characteristic s was interlocked with the passb and setting of the IF fil ter , and when the pa [...]

4 DSP 28 CONTENTS TS-590S Following is how t he TX signal is processed. The audio signal cap tured from the m icrophone or an external terminal is first processed by the b andwidth -limiting filter , micropho ne gain control , speech processor or VOX, a nd then, in SSB and AM mo des, the signal is mo dulated and outpu t as an IF signal; in FM mode,[...]

4 DSP TS-590S CONTENTS 29 Beat cancel (BC), as it s name implie s, is designed to cancel unpleasant beat interference. Like N R1 (line enhancer), BC uses adaptive filter technology . With this technology BC tracks and cancels a beat signal just like shaping a band elimin ation filter . BC is especially effective when there are mu ltiple beats that [...]

4 DSP 30 CONTENTS TS-590S Figure 4-10 shows how BC cancels beat signals, as monitored by an FFT analyzer . Notice how multiple beat s are clearly removed by BC. There are two meth ods available for beat ca ncellati on: BC1 an d BC2. BC1 is tuned to be effective against weak or conti nuous beat interference , while BC2 cancels in termittent beat s s[...]

4 DSP TS-590S CONTENTS 31 Figure 4-1 1 NB2: Inactive Figure 4-12 NB2: Active However , depending on the nature of the pulse noise, the noise blan ker cannot suppr ess the noise effe ctively . In such a case, by using other meth ods such as noise re duction in conj unction, the reception cond itions may be impro ved. There are two methods av ailable[...]

4 DSP 32 CONTENTS TS-590S Unlike the conven tional noise reduct ion methods, the spectral subtract ion method of NR 1 is a brand new approach of noise reduction de veloped for the TS-590 S. NR1 estimates the noise comp onent and ta kes away (subtract s) the esti mated noise compone nt from the RX signal to ma ke the ta rget signal emerge (Fig ure 4[...]

4 DSP TS-590S CONTENTS 33 Figure 4-14 NR1 (Spectral Subtraction Method) (Inactive) Figure 4-15 NR1 (Spectral Subtraction Method) (Active) Audio spectrum components swamped by noise Audio spectrum components extracted by NR[...]

4 DSP 34 CONTENTS TS-590S As a noise suppre ssion process, th e line enhancer method based on a DSP ha s been adopte d by many amateu r radio transce ivers in recent years. This method automatically adjusts the filter characteristics acc ording to the character istics of a RX signal to ob tain filter characteristics suita ble for passing periodic s[...]

4 DSP TS-590S CONTENTS 35 NR2 is what is known as SP AC. It detect s periodic signals cont ained in th e RX signal and piec es together the d etected peri odic signals to p roduce outpu t receive audi o. As a result, o nly the peri odic signals in the rece ive audio emerge clearly . NR1 based on an NR1 line e nhancer is a filter in es sence, but NR[...]

4 DSP 36 CONTENTS TS-590S Figure 4-19 NR2: Active TS-590S also incorporate s an AF-type sp eech processor . Th ough it is an AF t ype, the speech processor provides sufficient compression through a uniq ue signal processing technique. A typical voice sign al tends to ha ve the highest amplitude in th e low frequency range with smaller amplitude as [...]

4 DSP TS-590S CONTENTS 37 Figure 4-20 show s how the wavefo rm changes when the sp eech processo r is toggled betw een active and inacti ve. Y ou ca n see that wh en the speech pro cessor is act ivated, the differences in amplitude are averaged and the talk power is increased. The speech pr ocessor has two settings: HARD and SOFT . HARD is a settin[...]

38 CONTENTS TS-590S 5 SOFTW ARE: ENHANCING OPERA TING PLEASURE In addition to t he features we h ave explained thus far , the TS-5 90S comes wi th extensive functions to make your operatio n more pleasa nt. We will guide you throu gh some of th em. We have modified data-mode related settings to meet many different needs. Figure 5-1 Front Panel of t[...]

5 SOFTW ARE: ENHANCING OPERA TING PLEASURE TS-590S CONTENTS 39 Also, in data modes, the specif ication of the receive DSP filter is autom atically switched from LO CUT/HI CUT to WIDTH/SHIFT , allo wing for operations with no n-vo ice modulation types such as RTTY an d PSK31. Therefore, the IF DSP filter can be adjusted to as narrow as 50 Hz in SSB [...]

5 SOFTW ARE: ENHANCIN G OPERA TING PLEASURE 40 CONTENTS TS-590S Figure 5-2 DRV and RX ANT Connectors Operation in the 135 kHz Band Since the T echnical Regulations Conformi ty Certification of the transceiv er is invalid for operatio n in the 135 kHz band, yo u need to make a sepa rate applicati on for certification to work this ba nd. • Higher-l[...]

5 SOFTW ARE: ENHANCING OPERA TING PLEASURE TS-590S CONTENTS 41 Just like the TS-480 S, TS-590S employs d ouble fu nction keys to activate differ ent functions by holding down a key . This is meant to make operatio n easier th an in the sy stem requiring one to push a function key first before hitting another key to in voke the desired fu nction. Si[...]

5 SOFTW ARE: ENHANCIN G OPERA TING PLEASURE 42 CONTENTS TS-590S The TS-590S come s with a quick memory function as did with the pr evious transceivers. The number of cha nnels is a maxim um of 5 as de fault, but you can incre ase the number u p to 10 by setting in the me nu mode. C onversely , if you wish to decre ase the number of ch annels to mak[...]

5 SOFTW ARE: ENHANCING OPERA TING PLEASURE TS-590S CONTENTS 43 Though only t wo PF keys are available on the transceive r , it is possi ble to increa se the number of the PF keys by using a sw itch to switch a voltage derived from the micro phone conne ctor . If you have a m icrophone equipped with the PF keys such as MC-47 (alt hough it was discon[...]

5 SOFTW ARE: ENHANCIN G OPERA TING PLEASURE 44 CONTENTS TS-590S The optional VGS-1 voice guide and storag e unit can be installed on the transceiver . The voice guide and audio recordi ng function that are a cclaimed by sig ht-imp aired operators become available. The following are the de tail s of the VGS-1 and new functi ons added for the cu rren[...]

5 SOFTW ARE: ENHANCING OPERA TING PLEASURE TS-590S CONTENTS 45 On the rear panel of the TS-590S, proje ctions are placed near som e connectors. Figure 5-8 Projections on the Rear Panel We ha ve provided these gu ides to meet the demands from si ght-imp aired operator s who wish to set up the transceiver without help fr om someone else. If two ident[...]

46 CONTENTS TS-590S 6 APPEARANCE DESIGN: “DESIGN CONCEPT” REVEALED BY DESIGNING ENGINEER The design development of the TS-590S was st arted by asking myself “What are the characteristics that make Kenwood’s HF transceivers just what they are?” Among the key words adopted to describe the characteristics were “innovativeness”, “high q[...]

TS-590S CONTENTS 47 7 STRUCTURAL FEA TURES We have designed the chassis o f the TS-590S to endure heavy-du ty operation. The PCBs are placed as follows: FINAL UNIT on th e upper side of the chassis, TX-RX UNIT and LO UNIT on the lower side, CONTROL UNIT beneat h the LO UNIT , NB UNIT and DISPLA Y UNIT in front. We have placed two cooling fan s in t[...]

7 STRUCTURAL FEA TURES 48 CONTENTS TS-590S We have also paid much attention to th e area and sh ape of the air inlets/outlets to lessen the operation no ise of cool ing fan motors. T o reduce the noise from the air inle ts/outlets, the area and shap e were examined th rough repeated experiments and we ha ve finally succeeded in a lleviating the coo[...]

7 STRUCTURAL FEA TURES TS-590S CONTENTS 49 Figure 7-5 Heat Sink Section We will provide the tempera ture data when a cont in uous transmission is made at a 25°C o r 77°F room temperat ure so that yo u can understand the TS-5 90S’s superb cooling capability . Figure 7-6 T emperature Dat a while T ransmitting Continuously As can be seen from th e[...]

7 STRUCTURAL FEA TURES 50 CONTENTS TS-590S “We wanted to complete the d isplay without uneven brightness! ” That was our goal of designing the display screen, or the “face” of the tran sceiver . On the TS-5 90S, after repeated examinations a nd trials, we have fina lly reached our go al of a display with perfectly ev en brightness. The secr[...]

7 STRUCTURAL FEA TURES TS-590S CONTENTS 51 We ha ve designed the main control knob lo cated in the center of the front p anel, focusing on easy handling and good appe arance. For the encoder , a 250-pulse mag netic encoder is adopted, which enables the pulses are multiplied by 4 using so ftware to produce 1,000 pulses pe r revolution so that a u se[...]

52 CONTENTS TS-590S 8 EXP ANSIVE APPLICA TION SOFTW ARE This chapter describes th e Windows related software to be used to control the TS-590S from a PC. Following are t he Windows related software products that can be used with the TS-590S. T able 8-1 Windows Related Sof tware for TS-590S We will provide some typical system con figurations using t[...]

8 EXP ANSIVE APPLICA TION SOFTW ARE TS-590S CONTENTS 53 The microphone co nnected to the TS-5 90S and the tran sceiver ’s built-in speaker are used . The microphone and sp eaker connected to a PC ar e used. The ACC2 conn ector is used for inp ut/ output of the TS-590S’ s audio signal. Caution: T o use the ACC2 connector for input/output of the [...]

8 EXP A NSIVE APPLICA TION SOFTW ARE 54 CONTENTS TS-590S Caution: When the USB connector is used for inpu t/output of the audio si gnal on the hos t station, ARUA-10 is not required neither . ARCP-590 (Amateur Radio Control Pro gram for TS-590S) i s software ena bling control of the TS-590S from a PC. Figure 8-1 Main Wind ow of ARCP-590 ARCP-590 is[...]

8 EXP ANSIVE APPLICA TION SOFTW ARE TS-590S CONTENTS 55 The basic specificat ions of the ARCP-5 90 are inhe ri ted from ARCP-480 for the TS-480S. In addition, ARCP-590 confor ms to the new function s of the TS-590S. ARCP-590 supports Japanese and English user interface langua ges. A user can use ARCP-59 0 in the langua ge the user is the most famil[...]

8 EXP A NSIVE APPLICA TION SOFTW ARE 56 CONTENTS TS-590S The ARCP-590 has newly adopte d a listing by category in the menu function . The new listing by category as well as th e conventional general listin g allows quick access to th e desired function. Figure 8-3 Menu Functio n The ARCP-590 enables a user to set the delay time fo r switching from [...]

8 EXP ANSIVE APPLICA TION SOFTW ARE TS-590S CONTENTS 57 In ARCP-590, the nu mber of connection destination s that can be registered has been ex panded from a maximum of 10 to 100. The ARCP-480 and ARHP-10 for t he TS-480S are su pplied with the V oIP function to send and receive voice ov er the network connec tion, but the V oIP engi ne is not comp[...]

8 EXP A NSIVE APPLICA TION SOFTW ARE 58 CONTENTS TS-590S ARCP-590 is capable of visually showing the locati on of the current RX frequency on the d isplay and of shifti ng the current RX freque ncy to the center of the scan span. The scan center frequency an d the scan span can be sto red for ea ch amateu r radio ba nd. It is ideal fo r checking th[...]

8 EXP ANSIVE APPLICA TION SOFTW ARE TS-590S CONTENTS 59 ARHP-590 is the host application to control th e TS-590 S with Kenwoo d Network Com mand System (KNS). Figure 8-8 Main Wind ow of ARHP-590 ARHP-590 is avail able free and ca n be downloade d from Kenwood’ s website. URLs from which ARH P-590 can be down loaded: http://www .kenwo od.com/i/pr [...]

8 EXP A NSIVE APPLICA TION SOFTW ARE 60 CONTENTS TS-590S ARHP-590 allows a use r to check the ope rating status of ARHP-590 and TS-590S even after minimized. Y ou can check the st atus of th e power of the TS-590S (P ower ON or P ower OFF) and your connection an d transmission st atuses. Figure 8-9 Checking the Operating S t atus For details of Ken[...]

8 EXP ANSIVE APPLICA TION SOFTW ARE TS-590S CONTENTS 61 If ARUA-10 and ARCP-590 ar e used in combin ation, you have on ly to connect the TS- 590S and a PC with a single USB cable to use the microp hone and speaker connected to th e PC in place of those on the trans ceiver . T o use ARCP-590 ov er a USB cable connection , the virtual COM port driver[...]

8 EXP A NSIVE APPLICA TION SOFTW ARE 62 CONTENTS TS-590S Figure 8-1 1 Device T ab In the “Reception Out put” of the T ransceiver frame, “Microphone (USB Audio CODE C)” must be selected. In the “Modulati on Input” of the T ra nsceiver frame, “S peaker (U SB Audio CODEC)” must be selected. In the “Microphon e” of the PC frame, spe[...]

8 EXP ANSIVE APPLICA TION SOFTW ARE TS-590S CONTENTS 63 We ha ve released the AR VP-10H pr ogram that provide s the V oIP function at the host st ation (to which TS-590S is conn ected) and the ARVP-10R program tha t provides the V oI P function at the remote station (which contro ls the transceiver remotely). Figure 8-12 Main Window of ARVP-10H Fig[...]

8 EXP A NSIVE APPLICA TION SOFTW ARE 64 CONTENTS TS-590S ARVP-10H and ARVP-10R enable a voice signal to b e sent and received o ver LAN or the Interne t. Configure the n ecessary settings to use ARVP-10H. Select “User Settings” from the File pulldown menu and click the “Ad d...” button in the User Settings dialog bo x and the Setup User dia[...]

8 EXP ANSIVE APPLICA TION SOFTW ARE TS-590S CONTENTS 65 Configure the n ecessary settings to use ARVP-10R. Select “AR VP-S10R Settings” from the File pulldown menu and click the “Add...” but ton in the ARVP-10R Settings dialog box and the Det ailed Settings dialog box will appear . I n Detailed Settings dialog box, you can set the conn ecti[...]

8 EXP A NSIVE APPLICA TION SOFTW ARE 66 CONTENTS TS-590S T o connect the TS-590S and a PC via a US B cable to control TS-590S, the virtua l COM port driver needs to be inst alled on the PC. URLs from which virt ual COM port driver can be do wnloaded: http://www .kenwood.com/i/products/info/amateur/software_download.html If you connect the TS-590 S [...]

TS-590S CONTENTS 67 9 OPTIONAL ACCESSOR Y PS-60 is a regulated DC p ower supply designed fo r amateur tran sceivers. The power supply ad opts a switching module that accepts the input AC V oltage in the range from 90 V to 264 V . Though the p ower supply unit is comp act in size (W 173.5 mm x H 95.5 mm x D 204.3 mm or W 6.83 inch x H 3.76 inch x D [...]

9 OPTIONAL ACCESSORY 68 CONTENTS TS-590S  Adopt s a PFC Circuit that does not Produc e Harmonics in an AC Rectifier Circuit A switching power su pply typically produces large h a rmonics in the rectifier circuit by it s switching operation wh ich compromises th e phase factor and may ca use noise and o ther disturban ces to external devices du e[...]

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Version 1.00 May 15, 201 1[...]